Caterpillar 3508 E

Engine Specifications & Applications of the Caterpillar 3508E Engine

Introduction

The Caterpillar 3508E is a Tier 4-compliant, electronically controlled V8 diesel engine developed for high-performance industrial and marine applications. As the most advanced evolution in the 3508 engine family, the 3508E offers enhanced fuel efficiency, reduced emissions, and intelligent electronic integration—all while preserving the legendary torque, durability, and uptime that the 3500 Series is known for.

This engine is the go-to solution for businesses that operate in environmentally regulated areas and cannot afford downtime. Its integration of ADEM™ A4 controls, high-pressure fuel injection, and advanced aftertreatment makes it a long-term performer in rugged settings ranging from offshore supply vessels to land-based oilfields.

Diesel Pro Power proudly supplies premium aftermarket parts for the Caterpillar 3508E, offering a trusted, cost-effective alternative to OEM components. Our parts meet or exceed original specifications and are backed by fast global shipping and expert technical support.

Engine Specifications

Base Configuration

• Engine Model: Caterpillar 3508E

• Type: 4-stroke, V-8, turbocharged and aftercooled

• Displacement: 34.5 liters (2,105 cubic inches)

• Bore: 170 mm (6.69 inches)

• Stroke: 190 mm (7.48 inches)

• Aspiration: Turbocharged, aftercooled with SCAC (Separate Circuit Aftercooling)

• Fuel System: Common Rail Fuel Injection

• Control System: ADEM™ A4 electronic control module

• Emissions Compliance: U.S. EPA Tier 4 Final / EU Stage V

Performance Ratings

• Horsepower: 850–1,500 hp (634–1,119 kW), depending on configuration

• Rated Speed: 1,200–1,800 RPM

• Max Torque: 3,800–4,200 lb-ft depending on duty cycle

• Fuel Consumption: ~0.32–0.34 lbs/hp/hr under typical load

• Noise Level (at rated load): Meets IMO and EU marine acoustic standards

Dimensions & Weight

• Length: 110–116 inches (2,790–2,950 mm)

• Width: 70–74 inches (1,780–1,880 mm)

• Height: 86–92 inches (2,180–2,330 mm)

• Dry Weight: 7,900–8,300 lbs (3,580–3,760 kg)

Lubrication and Cooling

• Oil Capacity: 65–72 liters (17.2–19 gallons)

• Coolant Capacity: ~100 liters (26.4 gallons)

• Oil Type: 15W-40 (API CJ-4 or higher, low-ash)

• Cooling System Type: SCAC with integrated aftercooler and expansion tank

Applications of the Caterpillar 3508E Engine

The Caterpillar 3508E is designed for environments where uptime, power, and compliance intersect. It is used across regulated marine, energy, and industrial markets, where operators demand performance without sacrificing emissions compliance or service life.

Here’s how the 3508E engine excels across industries—with aftermarket support available from Diesel Pro Power to keep it operating at peak performance.

1. Marine Applications

Propulsion and Maneuvering

The 3508E powers:

• Tugboats and push boats

• Crew and supply vessels

• Pilot craft

• Workboats operating in Tier 4-regulated waters

The 3508E’s torque-rich curve and seamless throttle response allow for quick vessel positioning in dynamic port environments. The ADEM A4 control module optimizes power delivery and emissions in real time, ensuring compliance with EPA Tier 4 and IMO III marine standards.

Diesel Pro Power provides:

• Raw water and SCAC pumps

• Turbochargers for marine performance

• Marine-grade gasket and seal kits

• Electronic sensors and senders for critical systems

• Throttle control cables and actuator replacements

Marine Generator and Auxiliary Power

Beyond propulsion, the 3508E is used for:

• Onboard generator sets

• Fire pump systems

• Hydraulic drive units

• Powering HVAC or refrigeration compressors

Our aftermarket catalog includes:

• Oil coolers and coolant bypass valves

• Pre-lube pumps

• Aftercooler bundles and expansion tanks

• Wiring harnesses for marine-rated ECMs

2. Oil & Gas Field Equipment

Built to handle high-pressure, high-load environments, the 3508E engine is a core component in:

• Frac pump systems

• Drilling rig power units

• Mud pump operations

• Coil tubing applications

• Trailer-mounted oilfield generators

The Tier 4 Final certification allows the 3508E to operate in environmentally restricted regions where older diesel engines are no longer permitted. Its digital diagnostics and fuel mapping ensure efficiency and uptime.

Diesel Pro Power helps reduce downtime with aftermarket:

• Piston and liner kits for high-cylinder pressure

• High-pressure fuel rails and injectors

• Crankshaft components and dampers

• Exhaust gas temperature sensors

• NOx and soot sensor harnesses

All parts are engineered to perform under long duty cycles and field-serviceable conditions.

3. Power Generation

For both standby and prime power systems, the 3508E is a dependable, Tier 4-compliant generator engine. It supports:

• Utility backup systems

• Municipal grid support

• Continuous remote power in mining or exploration zones

• Data center emergency systems

Operators choose the 3508E for its blend of emissions compliance, rapid start time, and stable frequency output. It handles load step changes efficiently and meets stringent regulations in the U.S., Canada, and Europe.

Key aftermarket components for power gen:

• Full engine rebuild kits for scheduled maintenance

• Aftertreatment sensors and controllers

• Temperature sensors for coolant and exhaust systems

• Fuel priming pumps and pressure regulators

• Electronic actuator kits for throttle and governor control

4. Mining, Quarry & Aggregate Equipment

The 3508E is a common power solution for:

• High-capacity haul trucks

• Stationary rock crushers

• Screening plants

• Dewatering pump stations

• Ore processing equipment

Its high-torque output and Tier 4 compliance allow it to run in regulated mining operations without special permits. The advanced control systems help extend maintenance intervals and reduce fuel use.

Common aftermarket needs:

• Turbocharger assemblies with variable geometry

• High-capacity air intake systems

• Extended-life oil filtration kits

• Top-end overhaul packages

• Coolant recovery tanks and heat exchanger systems

Diesel Pro Power offers global delivery to ensure fast service in even the most remote mining regions.

5. Industrial & Construction Equipment

In industrial installations, the 3508E is used in:

• Concrete batch plants

• Tunnel boring machines

• Foundation drill rigs

• Bulk cargo handling equipment

• High-capacity compressors and blowers

These applications often require extended hours of operation under fluctuating loads. The 3508E’s smart control system and mechanical reliability provide the perfect combination for uptime-sensitive applications.

Diesel Pro supports industrial operations with:

• Rebuild kits tailored for intermittent or continuous operation

• Camshaft assemblies and valve train kits

• SCAC cooling lines and pumps

• Oil pan gaskets and seal kits

• Aftercooler and radiator bundles

6. Emergency Services & Municipal Infrastructure

The 3508E also finds use in civil defense and municipal operations that require:

• Standby power for critical water and wastewater systems

• Portable pump stations for flood control

• Generator trailers for disaster recovery

• Emergency firefighting or hazmat systems

With rapid response capabilities and emissions compliance, the 3508E meets both operational and regulatory demands in government service fleets.

Aftermarket parts commonly required include:

• Emergency shutdown systems

• Starter motors and pre-lube kits

• Electronic sensor harnesses for monitoring and fail-safes

• Oil pressure and temperature sensors

• Harness grommets and electrical interface kits

Why Choose Aftermarket Parts for the 3508E?

1. Certified Quality

Diesel Pro Power’s aftermarket components are manufactured to OEM-level standards, ensuring seamless fit, function, and durability.

2. Faster Lead Times

Our warehouse is stocked and ready to ship globally—cutting weeks off OEM delivery timelines.

3. Lower Cost

Our aftermarket pricing allows operators to lower maintenance budgets without compromising reliability or emissions integrity.

4. Technical Support

From verifying emissions configurations to identifying sensor locations, our expert team is here to assist with fast, accurate answers.

Final Thoughts

The Caterpillar 3508E engine is built for a new era of diesel performance—balancing regulatory compliance, electronic intelligence, and hard-working durability. It’s trusted in high-demand operations around the globe, from clean-harbor marine propulsion to Tier 4 oilfield power.

At Diesel Pro Power, we deliver the aftermarket parts you need to maintain that performance—whether you’re running a 24/7 drilling pad or rotating gensets at a municipal utility.

With fast shipping, OEM-level quality, and unmatched customer service, we’re your global aftermarket partner for the 3508E engine.

 Additional Resources

Marine CAT 3508 Component Maintenance Life

 

The Legacy of the Caterpillar Marine 3508 Engine: A Retrospective

 

Understanding the Caterpillar 3500 Series: What Sets These Engines Apart?