Engine Overview
The Caterpillar C32B represents a significant evolution in marine propulsion, combining proven mechanical reliability with advanced electronic controls. This V12 turbocharged and aftercooled diesel engine delivers exceptional power density while meeting stringent emissions standards, making it a preferred choice for high-performance yachts and commercial vessels worldwide.
Key Specifications
Configuration: 12-cylinder, 60° V-engine
Power Output: 1,925 HP (1,435 kW) at 2,300 rpm (Rating dependent)
Displacement: 32.1 liters (1,959 cubic inches)
Bore x Stroke: 145mm x 162mm
Aspiration: Twin turbochargers with air-to-water aftercooling
Fuel System: ACERT technology with electronic unit injectors
Cooling System: Heat exchanger cooled
Weight (dry): Approximately 2,900 kg
Emissions: IMO II compliant (rating dependent)
Available Power Ratings
The C32B platform offers multiple ratings for different applications:
Recreational (Pleasure Craft):
1,925 HP at 2,300 rpm - High performance yachts
1,800 HP at 2,300 rpm - Standard performance
Commercial (Continuous Duty):
1,600 HP at 1,800-2,100 rpm - Commercial vessels, workboats
1,400 HP at 1,800 rpm - Heavy-duty continuous operation
Important: Parts specifications may vary by rating. Always verify with engine serial number.
Typical Vessel Installations
The Caterpillar C32B is commonly found in:
Sport fishing yachts (50-80 feet)
Express cruisers and motor yachts
Sportfish tournament vessels
Fast crew boats and patrol craft
Luxury tenders and chase boats
Commercial fishing vessels
Charter yachts requiring performance and reliability
Why the C32B is Popular
ACERT Technology:
Advanced Combustion Emission Reduction Technology
Cleaner emissions without SCR or DEF
Proven reliability in marine environments
Better fuel efficiency than predecessor C32A
Twin Turbochargers:
Reduced turbo lag
Better throttle response
Redundancy (can limp home on one turbo if needed)
Lower exhaust gas temperatures
Caterpillar Support:
Worldwide dealer network
Excellent parts availability
Strong technical documentation
Established service procedures
Service Intervals & Maintenance Schedule
Caterpillar Recommended Intervals
Initial Break-In Service (50 Hours)
First oil and filter change (critical)
Inspect all connections and fittings
Check for leaks
Verify cooling system operation
Inspect belt tension
Torque all external fasteners
Verify no unusual noises or vibrations
250 Hours / 3 Months (whichever comes first)
Engine oil and filter change
Fuel filter replacement (primary and secondary)
Inspect raw water pump and impeller
Check crankcase breather
Visual inspection of all systems
Check coolant level and concentration
Inspect belts for wear and proper tension
Check for fluid leaks
500 Hours / 6 Months
Complete oil and filter change
Replace all fuel filters
Replace air filter elements
Replace raw water pump impeller
Inspect turbochargers for leaks
Check all hose connections
Inspect heat exchanger zincs (replace if >50% depleted)
Sample and test coolant
Clean crankcase breather (or replace if disposable type)
1,000 Hours / Annual Major Service
All 500-hour service items PLUS:
Replace coolant filter/conditioner
Inspect valve lash (adjust if needed)
Compression test (recommended)
Replace serpentine belt(s)
Inspect and clean heat exchanger
Test all sensors and alarms
Inspect engine mounts
Check damper plate/coupling
Perform full cooling system inspection
Inspect turbocharger wastegate operation
2,000 Hours / 2 Years
Major service including all 1,000-hour items
Replace all coolant (complete flush)
Inspect fuel injectors (HEUI system check)
Turbocharger inspection (bearing play, seal condition)
Inspect aftercooler (pressure test, clean)
Replace all serpentine belts
Timing gear inspection
Complete electrical system check
Load bank test (if possible)
4,000 Hours / Major Overhaul
Cylinder head inspection/reconditioning
Injector replacement (complete set recommended)
Turbocharger rebuild or replacement
Major bearing inspection
Valve train complete inspection
Replace all seals and gaskets
Complete engine survey
Essential Maintenance Parts
Engine Oil & Filtration System
Oil Capacity: Approximately 98 liters (26 gallons) with filters
Caterpillar Required Oil Specifications:
API CJ-4 or CK-4 minimum (critical for ACERT engines)
SAE 15W-40 for normal operation (5°C to 50°C / 40°F to 122°F)
SAE 10W-30 for cold climate operation (-18°C to 40°C / 0°F to 104°F)
Must meet Cat ECF-3 specification
DO NOT use API CI-4 or older specifications
Why Oil Specification Matters:
The C32B uses HEUI (Hydraulic Electronic Unit Injector) system where engine oil:
Lubricates engine components
Actuates fuel injectors at 3,000+ PSI
Wrong oil = injector failure = catastrophic damage
Oil Filters:
Primary oil filters: 2 per engine
Replace at every oil change (250 hours)
Use ONLY genuine Caterpillar filters
Filter collapse = engine failure
Oil Change Critical Notes:
⚠️ Never extend oil change intervals on C32B
HEUI system particularly sensitive to oil quality
Oil degradation = injector performance issues
Change oil when warm (better contamination removal)
Always inspect old filters for metal particles
Fuel System Components
The C32B uses Caterpillar's HEUI (Hydraulic Electronic Unit Injector) system - one of the most sophisticated marine diesel fuel systems.
Fuel Filter System:
Primary Fuel Filter (Water Separator):
First defense against water and large contaminants
Replace every 250 hours
Check water bowl daily
Drain water immediately when detected
Use genuine CAT fuel/water separator
Secondary Fuel Filter:
Final filtration before injection system
Replace every 250 hours
Critical for injector protection
Never use aftermarket filters
Fuel System Priming:
After filter changes, proper priming is critical:
Use hand primer pump
Run until fuel flows without bubbles
Air in system = hard starting, rough running
HEUI system very sensitive to air
HEUI Fuel Injectors:
The C32B's injectors are electronically controlled and hydraulically actuated:
How They Work:
Engine oil at 3,000+ PSI actuates injector
ECM controls injection timing and quantity electronically
Extremely precise fuel delivery
Multiple injection events per combustion cycle
Injector Life Expectancy:
Normal operation: 12,000-15,000 hours
Poor fuel quality: 6,000-8,000 hours
Contaminated oil: 3,000-5,000 hours
Signs of Injector Issues:
Rough running or misfiring
Black smoke
Loss of power
High fuel consumption
Hard starting
Unusual engine knock
Injector Replacement Cost:
Single injector: £1,800-2,500
Complete set (12): £21,600-30,000
Labor for replacement: £2,000-4,000
Total job: £25,000-35,000
This is why fuel filtration and oil quality are NON-NEGOTIABLE.
Air Intake & Turbocharger System
Air Filter Elements:
Heavy-duty marine air filters
Replace every 500 hours minimum
More frequent in dusty environments
Check restriction indicator at every inspection
Restricted air filter = loss of power, increased EGT
Twin Turbocharger System:
The C32B uses twin turbochargers (one per bank):
Advantages:
Faster throttle response
Lower peak temperatures per turbo
Redundancy (can operate on one if needed)
Better air distribution
Turbocharger Maintenance:
Inspect at every 500-hour service
Check for oil leaks around seals
Listen for unusual whistling or grinding
Check wastegate operation
Verify boost pressure is equal between banks
Expected Life:
Normal operation: 10,000-15,000 hours
Poor maintenance: 5,000-8,000 hours
Rebuild cost per turbo: £2,500-4,000
Turbo Failure Symptoms:
Loss of power
Excessive black smoke
Blue smoke (oil burning through seals)
Unusual noise
Unequal exhaust temperatures between banks
Aftercooler (Intercooler):
Air-to-water type, integrated with cooling system
Reduces intake air temperature (increases power, reduces emissions)
Inspect for leaks at annual service
Clean seawater side if applicable
Pressure test during major service
Cooling System
Cooling System Design:
The C32B uses a closed freshwater cooling system with heat exchanger:
Fresh water cools engine and aftercooler
Raw seawater cools fresh water via heat exchanger
Expansion tank maintains system pressure
Coolant Specifications:
Use Cat Extended Life Coolant (ELC) ONLY
Pre-mixed: 50% concentrate, 50% distilled water
System capacity: Approximately 135 liters
Replace every 2,000 hours or 3 years (ELC)
Never mix ELC with standard coolant
Why Cat ELC Matters:
Protects aluminum components from corrosion
Prevents cavitation on cylinder liners
Compatible with HEUI system requirements
Wrong coolant = voided warranty
Coolant Filter/Conditioner:
Contains supplemental coolant additives (SCA)
Replace at 1,000-hour intervals
Critical for corrosion protection
Don't skip this - liner pitting is expensive
Raw Water System:
Raw Water Pump:
Engine-driven with rubber impeller
Replace impeller every 500 hours (non-negotiable)
More frequent in sandy or silty water
Carries spare impeller kit always
Impeller Service Notes:
Use glycerin or soapy water during installation
Inspect pump housing for wear
Replace faceplate gasket every time
Check for debris in pump body
Verify all vanes present when removing old impeller
Heat Exchanger:
Tube-and-shell type (large capacity for C32B)
Sacrificial zinc anodes for corrosion protection
Inspect zincs every 500 hours
Replace when 50% depleted
Clean tubes annually in saltwater service
Scale buildup = overheating
Common Cooling Problems:
Failed impeller → overheating in minutes
Depleted zincs → corrosion damage
Clogged heat exchanger → reduced cooling capacity
Air in system → hot spots, sensor errors
Low coolant level → overheating, cavitation
Drive System & Accessories
Serpentine Belt System:
The C32B uses heavy-duty serpentine belts to drive:
Twin alternators
Raw water pump
Coolant pump
Power steering pump (if equipped)
Belt Maintenance:
Inspect tension every 250 hours
Check for cracks, glazing, fraying
Replace every 2,000 hours minimum
Replace immediately if any damage visible
Proper tension critical for charging and cooling
Belt Tension:
Too loose = slipping, inadequate cooling/charging
Too tight = bearing failure on pulleys
Use belt tension gauge (not thumb pressure)
Damper Plate / Flexible Coupling:
Absorbs torsional vibration from V12
Inspect at annual service
Check for cracks, wear, bolt torque
Typical life: 8,000-12,000 hours
Failure symptoms: vibration, noise
Common Issues & Failure Points
Based on 35+ Years of Caterpillar Marine Parts Experience
1. HEUI System Issues (Most Complex/Expensive)
The HEUI system uses engine oil to actuate injectors at 3,000+ PSI:
Common Causes of HEUI Problems:
Contaminated engine oil
Wrong oil specification (using CI-4 instead of CJ-4)
Extended oil change intervals
Poor fuel quality
Water in fuel
Low engine oil pressure
Worn high-pressure oil pump
Symptoms:
Rough running, misfiring
Loss of power
Hard starting
Unusual engine knock
Black or white smoke
ECM fault codes
Prevention:
Use ONLY Cat CJ-4 or CK-4 oil
Change oil religiously at 250 hours
Use genuine Cat oil filters
Maintain proper oil level
Keep fuel ultra-clean
Address low oil pressure immediately
Cost of Failure:
Complete injector set: £25,000-30,000
High-pressure oil pump: £3,000-5,000
ECM damage: £2,000-4,000
Potential total: £35,000+
This is THE most expensive failure on C32B engines.
2. Turbocharger Issues
With twin turbos, you have twice the potential issues:
Common Causes:
Oil starvation (low level, clogged filter)
Contaminated oil
Restricted air intake
Excessive exhaust backpressure
Foreign object damage
Normal wear (high hours)
Symptoms:
Loss of power
Unequal power between turbo banks
Black or blue smoke
Whistling or grinding noise
High exhaust gas temperatures
Oil leaks from turbo seals
Prevention:
Maintain proper oil level and quality
Replace air filters on schedule
Check exhaust system for restrictions
Proper warm-up (1-2 minutes before load)
Cool-down period (3-5 minutes at idle before shutdown)
Expected Costs:
Single turbo rebuild: £2,500-4,000
Both turbos: £5,000-8,000
If caught early, rebuild is possible
If run with failed seals, replacement required
3. Cooling System Failures
Most common causes of C32B overheating:
Failed Raw Water Impeller:
Rubber impeller deteriorates over time
Vanes crack, break off, or become deformed
Complete failure = no raw water flow
Engine overheats in 2-3 minutes
Can warp cylinder heads if severe
Prevention:
Replace every 500 hours without exception
Inspect removed impeller for all vanes present
Keep spare on board always
More frequent if operating in sandy water
Clogged Heat Exchanger:
Salt deposits in tubes (seawater cooling)
Scale buildup
Debris accumulation
Reduced cooling capacity
Prevention:
Clean tubes annually in saltwater
Inspect zincs every 500 hours
Flush with fresh water after seawater use
Pressure test at major service
Depleted Zincs:
Galvanic corrosion without zinc protection
Tube failure
Heat exchanger replacement: £4,000-8,000
Prevention:
Inspect every 500 hours
Replace at 50% depletion
Use proper zinc material for water type
Never run without zincs
4. Fuel System Contamination
Water is the enemy of the HEUI system:
How Water Enters Fuel:
Condensation in fuel tanks
Poor fuel quality from marina
Leaking fuel tank vent
Contaminated fuel delivery
Deck fill cap seal failure
Effects:
Corrosion in injection system
Injector failure
High-pressure pump damage
ECM sensor errors
Rough running
Prevention:
Use fuel stabilizer/biocide
Keep tanks full (reduces condensation)
Check water separator daily
Drain water immediately
Polish fuel tanks annually
Use only reputable fuel sources
5. Electronic System Issues
The C32B is heavily computer-controlled:
Common Sensor Failures:
Coolant temperature sensors
Oil pressure sensors
Boost pressure sensors
Throttle position sensor
Engine speed sensors
Exhaust temperature sensors
Causes:
Vibration
Heat
Moisture intrusion
Connector corrosion
Age deterioration
Symptoms:
Intermittent alarms
Limp mode operation
Safety shutdowns
Erratic gauge readings
Check engine light
Stored fault codes
Prevention:
Keep connections clean and dry
Use dielectric grease on connectors
Inspect wiring regularly
Address corrosion immediately
Use genuine Cat sensors only
Diagnostic Tools:
Cat ET (Electronic Technician) software required
Reads fault codes
Monitors real-time parameters
Adjusts engine parameters
Most dealers have this
6. Starting System Problems
The C32B uses heavy-duty marine starters:
Common Issues:
Slow cranking (weak batteries)
Clicking (low voltage, bad solenoid)
No response (faulty starter, connections)
Grinding (starter drive or flywheel)
Battery Requirements:
Large battery bank (typically 4x 8D batteries)
Must maintain voltage during cranking
Weak batteries = hard starting, starter damage
Prevention:
Maintain batteries properly
Test batteries regularly
Keep connections clean and tight
Don't crank for extended periods (max 30 seconds)
Allow 2-minute cool-down between attempts
Starter Replacement Cost:
Heavy-duty marine starter: £1,500-2,500
Much cheaper than replacing due to extended cranking damage
Emergency Spares for Extended Cruising
Essential Spares Kit for C32B
Critical Parts (Must Have):
✓ Complete fuel filter set x2
✓ Raw water impeller kit x2 (with gaskets)
✓ Engine oil filters x4
✓ Air filter elements x1 complete set
✓ Serpentine belts (complete set)
✓ Heat exchanger zincs x4
✓ Fuel priming pump rebuild kit
✓ Thermostat with gasket
✓ Water pump seal kit
✓ Selection of common sensors
✓ Injector O-ring kit
✓ Assorted hoses, clamps, gaskets
Fluids & Consumables:
✓ Engine oil (Cat CJ-4 or CK-4): 100+ liters
✓ Cat ELC coolant concentrate: 20 liters
✓ Fuel biocide/conditioner
✓ Cat gasket sealant
✓ Thread locker
✓ Electrical connectors and terminals
✓ Spare fuses (all ratings)
Tools Specific to C32B:
✓ Impeller removal tool
✓ Belt tension gauge
✓ Coolant refractometer
✓ Fuel pressure gauge
✓ Multimeter
✓ Cat service manual
Nice to Have (Extended Remote Cruising):
✓ Complete serpentine belt tensioner
✓ Fuel transfer pump
✓ ECM (if long passage, expensive but critical)
✓ High-pressure oil pump seal kit
✓ Turbo oil feed line
C32B vs. Competitive Engines
How It Compares in the Market
Caterpillar C32B (1,925 HP):
Proven HEUI injection system
Twin turbo design
Excellent parts availability
Strong dealer network
ACERT emissions (no DEF required)
Moderate fuel consumption
MTU 12V 2000 M96 (1,948 HP):
Similar power output
Higher RPM operation
Premium pricing (parts more expensive)
Common rail injection
Lighter weight
Higher fuel consumption
MAN V12 (1,800-2,000 HP):
Similar displacement
Common rail system
Good European support
Less common in US market
Competitive pricing
Yanmar 12AYM Series (1,822 HP):
Slightly lower power
Exceptional torque
Good value
Common rail injection
Growing parts network
Why Choose C32B:
✓ Best dealer network (Caterpillar worldwide)
✓ Extensive parts availability
✓ Proven reliability in marine
✓ Strong resale value
✓ Well-documented service procedures
✓ No DEF/SCR complexity
C32B Considerations:
HEUI system requires strict maintenance
Oil specification critical
Injector replacement expensive
Not the lightest option
Not the most fuel-efficient
Service Kit Solutions
Pre-Configured Maintenance Kits
250-Hour Basic Service Kit:
Engine oil filters (x2)
Fuel filters (primary and secondary)
Oil drain plug washers
All O-rings and seals
Service record form
500-Hour Standard Service Kit:
All 250-hour items PLUS:
Air filter elements (inner and outer)
Raw water pump impeller kit with gasket
Heat exchanger zincs (set of 4)
Crankcase breather element
Serpentine belt inspection kit
1,000-Hour Annual Major Service Kit:
All 500-hour items PLUS:
Coolant filter/conditioner
Complete serpentine belt set
Thermostat with gasket
Valve cover gaskets
Comprehensive service checklist
Coolant test strips
2,000-Hour Major Service Kit:
All 1,000-hour items PLUS:
Complete cooling system service kit
All coolant hoses
Complete gasket set
Water pump rebuild kit
Extended service documentation
Custom Service Kits:
Planning a specific overhaul or extended cruise?
Send us your engine serial number
Specify your requirements
We'll quote complete kit
Single shipment, everything included
Caterpillar C32B Specifications Quick Reference
Key Ratings & Capacities
Common Power Ratings:
Pleasure (2300 RPM): 1,925 HP / 1,435 kW
Pleasure (2300 RPM): 1,800 HP / 1,342 kW
Commercial (2100 RPM): 1,600 HP / 1,193 kW
Commercial (1800 RPM): 1,400 HP / 1,044 kW
Fluid Capacities:
Engine Oil: 98 liters (26 gallons)
Coolant System: ~135 liters (36 gallons)
Fuel Filter: Prime before starting after change
Critical Specifications:
Oil Pressure (running): 275-415 kPa (40-60 PSI)
Coolant Temperature: 82-96°C (180-205°F)
Air Inlet Restriction: 635mm H2O maximum (25 inches)
Exhaust Backpressure: 76mm Hg maximum (3 inches)
Troubleshooting Guide
Quick Diagnosis Reference
Hard Starting / Won't Start:
Check First:
Fuel supply (tank level, fuel shut-off valve)
Battery voltage (minimum 24V for cranking)
Air in fuel system (after filter change?)
ECM fault codes (if check engine light on)
Starter motor operation
Common Causes:
Air in HEUI system
Low oil pressure (HEUI won't operate)
Faulty fuel supply pump
ECM sensor issues
Glow plug system (cold start)
Loss of Power:
Check First:
Air filter restriction indicator
Fuel filter restriction
Boost pressure (both turbos)
Exhaust smoke color
ECM fault codes
Common Causes:
Restricted air intake
Clogged fuel filters
Turbocharger issues (one or both)
HEUI injector problems
Exhaust restriction
High Engine Temperature:
Check First:
Coolant level in expansion tank
Raw water flow from overboard discharge
Heat exchanger zincs condition
Belt tension (drives coolant pump)
Coolant concentration
Common Causes:
Failed raw water impeller
Slipping belt (coolant pump not turning)
Clogged heat exchanger
Thermostat stuck closed
Air in cooling system
Low coolant level
Unusual Smoke:
Black Smoke:
Rich air/fuel mixture
Restricted air intake
Turbocharger not producing boost
Injector issues
Excessive load
Blue/Grey Smoke:
Burning engine oil
Turbocharger seal leaking
Worn valve guides/seals
Worn piston rings
Excessive crankcase pressure
White Smoke:
Coolant entering combustion chamber
Head gasket failure
Cylinder head crack
Injector O-ring leak (raw fuel)
Normal at cold startup (dissipates quickly)
Low Oil Pressure Warning:
STOP ENGINE IMMEDIATELY if pressure drops below 140 kPa (20 PSI) at operating RPM
Check:
Oil level (dipstick)
Oil pressure gauge accuracy
Oil pressure sensor
Oil filter restriction
Oil pump operation
Causes:
Low oil level
Worn oil pump
Bearing wear
Diluted oil (fuel or coolant contamination)
Wrong oil viscosity
Check Engine Light / ECM Codes:
Common Fault Codes:
94-01: Coolant temperature sensor
100-03: Oil pressure sensor
253-02: Injector #1 circuit (repeat for 253-03 through 253-14)
341-02: Boost pressure sensor
What To Do:
Record all active and logged codes
Note conditions when code appeared
Don't clear codes before diagnosis
Use Cat ET software for detailed diagnosis
Address codes in order of severity
Parts Availability & Lead Times
At OE Engine Parts
✓ In-Stock Items (Ship 4-5 Working Days):
Engine oil filters (genuine Cat)
Fuel filters (all types)
Air filter elements
Raw water impeller kits
Serpentine belts
Heat exchanger zincs
Common gaskets and seals
Standard hoses and clamps
Common sensors
⏱️ Special Order Items (4-8 Weeks):
HEUI fuel injectors (individual or sets)
Turbochargers and turbo components
Engine Control Module (ECM)
High-pressure oil pump components
Major engine assemblies
Cylinder heads
Engine blocks
Crankshafts
⚡ Express Service:
For emergency breakdowns, we can often expedite critical parts:
Air freight available for urgent requirements
Direct from Caterpillar distribution
Overnight delivery in many cases
Call immediately: +44 1473 728678
Why Genuine Caterpillar Parts Are Essential
The Cost of Aftermarket Parts
HEUI System:
The C32B's HEUI system is one of the most sophisticated marine diesel systems:
Engine oil actuates injectors at 3,000+ PSI
Tolerances measured in microns
Electronic and hydraulic precision combined
Aftermarket Injectors:
❌ Wrong hydraulic characteristics = poor performance
❌ Incorrect spray pattern = incomplete combustion
❌ Poor quality = premature failure
❌ One bad injector can contaminate entire system
❌ Voids Caterpillar warranty completely
Risk: One £400 savings on aftermarket injector can lead to £35,000 in damage.
Fuel Filters:
Genuine Cat fuel filters are engineered for:
Exact flow rates for HEUI system
Proper filtration efficiency (critical for 3,000 PSI oil)
Correct filter media (micron rating)
Proper bypass valve operation
Aftermarket filters may:
❌ Collapse under pressure
❌ Allow contaminants through
❌ Restrict flow (starves injectors)
❌ Leak
Oil Filters:
Two oil filters protect the entire HEUI system:
Must handle high flow rates
Must maintain pressure differential
Must filter to proper micron rating
Failure = injector damage
Other Components:
Even seemingly simple parts matter:
Sensors: Aftermarket often cause false readings
Gaskets: Wrong material = leaks or failure
Belts: Must meet exact specifications
Thermostats: Wrong temperature = engine damage
Caterpillar Warranty:
Using non-genuine parts typically voids:
Engine warranty
Extended service agreements
Emissions compliance
Technical Support & Parts Identification
How We Help C32B Owners
Not Sure What Parts You Need?
Provide Us:
Engine serial number (located on valve cover)
Engine arrangement number (if known)
Current engine hours
Service interval due
Any issues or concerns
We'll Provide:
Correct part numbers for your specific engine
Availability and lead times
Competitive pricing
Technical guidance
Have a Cat Service Schedule?
Email or upload PDF
We'll quote all required parts
Grouped by interval
Complete kit pricing available
Emergency Breakdown?
WhatsApp photos of failed component
Include engine serial number and symptoms
We'll identify part and check availability
Express shipping options provided
Request Your C32B Service Quote
Planning scheduled maintenance? Need emergency parts?
We specialize in genuine Caterpillar marine diesel support.
Contact Us:
📱 WhatsApp: +44 7599 451070
Send service schedule, photos, or part numbers
☎️ Call Direct: +44 1473 728678
Speak with our Caterpillar specialist
📧 Email: info@oeengineparts.com
Include engine serial number and requirements
What to Include:
Engine serial number (critical for correct parts)
Arrangement number (if visible)
Current engine hours
Service interval (250/500/1,000/2,000 hours)
Power rating (1,925 HP / 1,800 HP / etc.)
Any known issues
Timeline required
Vessel location (for shipping)
Our Response:
Within 2 hours during business hours
Accurate parts identification
Honest lead times (we don't overpromise)
Competitive genuine Cat parts pricing
Technical support included
About OE Engine Parts
Since 1997, we've specialized in genuine OE marine diesel components. Our family business understands that Caterpillar engines are significant investments requiring proper parts and knowledgeable support.
Why C32B Operators Choose Us:
✓ Genuine Caterpillar Parts - Authorized supplier
✓ C32B Expertise - 35+ years with Cat marine engines
✓ Comprehensive Stock - Filters to complete assemblies
✓ Responsive Service - 2-hour response commitment
✓ Honest Communication - Realistic lead times, no surprises
✓ Global Support - Serving vessels across 4 continents
Our Commitment:
"We provide exactly the spare part you need. You can rely on our commitment to quality and dependability." - Martin Hewing, Firm Owner
Related Engine Guides:
Caterpillar C18 Marine Complete Parts Guide
Caterpillar C32 ACERT vs C32B: What Changed
HEUI Fuel System Maintenance Best Practices
Marine Turbocharger Care: Twin Turbo Systems
Understanding Cat ACERT Technology
C32B Service Quick Reference Card
Service Intervals:
Oil Change: Every 250 hours
Fuel Filters: Every 250 hours
Air Filters: Every 500 hours
Impeller: Every 500 hours
Zincs: Check 500 hours / Replace at 50%
Belts: Inspect 250 hours / Replace 2,000 hours
Critical Specifications:
Oil: Cat CJ-4 or CK-4 ONLY (NOT CI-4)
Coolant: Cat ELC only (NOT standard coolant)
Oil Capacity: 98 liters (26 gallons)
Coolant Capacity: ~135 liters (36 gallons)
Warning Signs:
Black smoke → Air or fuel system issue
Blue smoke → Oil burning (turbos/rings)
White smoke → Coolant in combustion
High temp → Cooling system problem
Loss of power → Air/fuel/boost issue
Emergency Numbers:
WhatsApp: +44 7599 451070
Phone: +44 1473 728678
Email: info@oeengineparts.com
Last Updated: October 2025
This guide is based on general Caterpillar C32B specifications. Always refer to your specific engine's Operation and Maintenance Manual. Part numbers, specifications, and service intervals may vary based on engine serial number, arrangement number, and rating. Caterpillar reserves the right to make changes without notice. For critical applications, always consult with qualified Cat marine technicians.
Need Immediate C32B Support?
Emergency Hotline: +44 1473 728678
WhatsApp (Available 24/7): +44 7599 451070
Email: info@oeengineparts.com
We understand engine emergencies don't follow business hours. For critical C32B breakdowns, contact us anytime. We'll do everything possible to get you the parts you need.
