Caterpillar 3508 C

Engine Specifications & Applications of the Caterpillar 3508C Engine

Introduction

The Caterpillar 3508C engine is a next-generation V8 diesel built for high-horsepower, high-reliability applications across marine, oilfield, power generation, and industrial markets. As a modern evolution of the 3500-series platform, the 3508C integrates advanced electronics, fuel mapping precision, and Tier-compliant emissions capabilities—all while delivering legendary Caterpillar torque and durability.

What sets the 3508C apart is its ability to meet today’s performance standards without compromising on uptime. It delivers dependable output in extreme environments, often running around the clock in mission-critical operations. For customers who demand maximum power and minimum failure, the 3508C remains a top choice.

At Diesel Pro Power, we support this engine with a comprehensive inventory of aftermarket parts built to OEM-level standards. Whether you're performing preventive maintenance or a full in-frame overhaul, we help you keep your 3508C running without the delays and markup of OEM channels.

Engine Specifications

General Configuration

• Engine Model: Caterpillar 3508C

• Type: 4-stroke, V8, turbocharged and aftercooled diesel

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

• Bore: 170 mm (6.69 inches)

• Stroke: 190 mm (7.48 inches)

• Aspiration: Turbocharged and separate circuit aftercooled (SCAC)

• Fuel System: Electronic Unit Injection (EUI)

• Emissions Tier: U.S. EPA Tier 2 / IMO II compliant

• Control System: ADEM™ A3 electronic engine management

• Flywheel Rotation: Counterclockwise (viewed from flywheel end)

Power Output

• Horsepower Range: 850–1,500 bhp depending on configuration

• Rated Speed: 1,200–1,800 RPM

• Torque Output: Up to 4,000 lb-ft (5,423 Nm)

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

Dimensions & Weight

• Length: 110–114 inches (2,800–2,900 mm)

• Width: 72–76 inches (1,830–1,930 mm)

• Height: 84–90 inches (2,130–2,290 mm)

• Dry Weight: 7,800–8,200 lbs (3,540–3,720 kg)

Lubrication and Cooling

• Oil Capacity: 62–70 liters (16.5–18.5 gallons)

• Cooling System Capacity: ~95 liters (25 gallons)

• Recommended Oil: SAE 15W-40, ECF-2/3 certified

• Typical Oil Pressure: 50–65 psi

Applications of the Caterpillar 3508C Engine

The 3508C is designed to operate under full load for extended periods while meeting modern emissions standards. It’s used globally in operations that rely on consistent high torque, fuel efficiency, and fast part availability. The engine’s intelligent integration of mechanical durability and digital control makes it a preferred solution in industries where performance and compliance must go hand in hand.

1. Marine Propulsion & Auxiliary Use

Marine Propulsion

The Caterpillar 3508C is extensively used in the maritime sector, particularly in:

• Tugboats

• Workboats

• Supply vessels

• Large fishing trawlers

• Government and patrol craft

Marine operators rely on the 3508C for its combination of brute torque and emissions control. With its ADEM A3 engine control module and SCAC cooling, the 3508C provides smoother power curves, better fuel economy, and compliance with Tier 2 and IMO II requirements—without sacrificing responsiveness during throttle changes.

Diesel Pro Power supports marine users with aftermarket:

• Marine-grade raw water pumps

• Aftercoolers and SCAC components

• Turbochargers suited for variable load applications

• Control cables and throttle linkages

• Gasket kits rated for saltwater exposure

Marine Auxiliary Systems

Many marine vessels also utilize the 3508C for:

• Onboard electrical generation

• Fire pump operation

• Hydraulic system drives

• Compressor support for refrigeration and ventilation

For auxiliary systems, we offer:

• Starter motors

• Oil coolers and sensor bundles

• Thermostats and pre-assembled housing units

• Fuel transfer pumps and lift pumps

2. Power Generation

The 3508C engine is frequently deployed in generator applications that require emissions-compliant and stable output. It is used for:

• Standby power for government buildings, utilities, and hospitals

• Prime power in mining camps, construction sites, and rural facilities

• Continuous power for processing plants and remote infrastructure

With a stable output at 1,800 RPM and seamless electronic load adjustment, the 3508C is ideal for regulated regions requiring certified emissions levels and uninterrupted power.

Diesel Pro’s aftermarket catalog includes:

• Rebuild kits for genset-specific duty cycles

• Aftermarket injectors for emissions-controlled engines

• Sensor kits for temperature, oil pressure, and overspeed protection

• High-efficiency turbochargers and air intake systems

• Coolant bypass lines and water pumps

3. Oil & Gas Industry

The Caterpillar 3508C engine is popular in energy and drilling operations due to its torque stability, electronic precision, and certified emissions profile. Common uses include:

• Hydraulic fracturing units (frac pumps)

• Portable rotary drilling rigs

• Well stimulation equipment

• Portable field generators and compressors

Whether it's operating on a shale pad or driving pressurized fluid delivery systems, the 3508C delivers dependable horsepower with intelligent fuel timing adjustments—essential for optimizing fuel burn and lowering emissions in demanding applications.

We support these field uses with aftermarket:

• Pistons, liners, and connecting rods

• Camshaft assemblies and followers

• Crankshaft kits for field rebuilds

• ADEM-compatible electronic harnesses

• High-pressure fuel delivery systems

4. Mining and Material Handling

In surface and underground mining operations, the 3508C powers:

• Large haul trucks

• Blast hole drills

• Conveyors and crushers

• Mobile dewatering units

These engines are required to run long hours in dust-heavy, hot, and vibration-prone conditions. The ADEM A3 system helps balance fuel economy and output while providing diagnostics for easier field maintenance.

Aftermarket parts frequently ordered for mining include:

• Valve train kits and bridge assemblies

• Turbochargers for altitude-adapted performance

• Fuel injectors with improved atomization

• Air filters and intake elbows

• Field-serviceable rebuild kits with fast shipping availability

5. Heavy Construction and Infrastructure

The Caterpillar 3508C is also used in stationary or mobile heavy construction machinery including:

• Foundation drilling equipment

• High-volume concrete batch plants

• Pile-driving machines

• Large capacity cranes and hoists

• Industrial HVAC power units

Its reputation for consistent performance under fluctuating load profiles makes it ideal for infrastructure projects in both urban and remote zones.

Construction companies and contractors rely on aftermarket parts such as:

• Starter relays and electrical senders

• Gasket kits with thermal expansion protection

• Cooling fans, radiators, and fan belts

• Fuel filters and water separators

• ADEM module-compatible control systems

6. Emergency and Government Services

In mission-critical government infrastructure and emergency services, the 3508C engine powers:

• Emergency generator sets for water treatment and disaster response

• Civil defense pump stations

• Military field power equipment

• Public safety backup systems

These engines are expected to start instantly, perform under pressure, and stay compliant with emissions limits.

Diesel Pro Power supports these sectors with:

• Service interval kits for quarterly or annual checkups

• High-sensitivity oil and coolant sensors

• Aftermarket injectors and pressure regulators

• Replacement wiring harnesses and fuse panels

• Thermostats and SCAC cooling parts for Tier 2 gensets

Why Choose Aftermarket Parts for the 3508C?

1. Engineered Reliability

Diesel Pro Power supplies aftermarket components manufactured to exacting standards—many by suppliers who also manufacture for OEMs.

2. Save Time and Money

OEM components are often backordered or come at a high markup. Our aftermarket catalog ships fast and reduces total cost of ownership.

3. Global Logistics

Whether you're dockside, on a mining site, or at a remote power station, we offer international delivery and support.

4. Fitment Support

Not sure whether your engine uses SCAC or JWAC cooling? We’ll help confirm part compatibility based on your engine serial or arrangement number.

Final Thoughts

The Caterpillar 3508C engine is a leader in emissions-compliant, high-torque diesel performance. Trusted in marine propulsion, oilfield service, generator systems, and critical infrastructure, it blends the mechanical reliability of the 3500 series with advanced fuel controls and Tier 2 compatibility.

At Diesel Pro Power, we help maximize the uptime and longevity of these engines by offering the parts that keep them running at peak output—without the OEM price tag or wait.

From rebuild kits, cooling system parts, and electronic sensors to injectors, turbochargers, and starter motors, our aftermarket inventory is tailored for real-world performance and supported by expert staff.

 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?