Parts for Caterpillar 3408B – Engine Water Pump Section

Keeping a Caterpillar 3408B engine properly cooled is one of the most important aspects of maintaining reliable performance, whether in marine vessels, industrial equipment, or power generation applications. At the center of this system is the engine’s fresh water pump, supported by hoses, clamps, and rebuild kits that keep coolant circulating efficiently. Diesel Pro Power supplies a complete catalog of Caterpillar 3408B engine water pump parts, trusted by more than 40,000 satisfied customers in over 180 countries.

This section provides a detailed overview of each water pump, rebuild kit, coolant hose, and clamp available for the Caterpillar 3408B, along with context about their role in the cooling system, installation insights, and application-specific notes.

Engine Water Pumps for Caterpillar 3408B

Fresh Water Pump for Caterpillar 3408, 3408B, and 3408C Engines

This water pump is designed for use across multiple configurations of the Caterpillar 3408 engine family, including the 3408B. It comes engineered for precision fitment and is built to handle the high demands of heavy-duty applications.

• Applications: Industrial power plants, marine propulsion systems, and large-scale construction machinery powered by the 3408B.

• Arrangement Numbers: Compatible with arrangements such as 1167139, 1566896, 1773057, 1773058, 1773059, 2W6101, 4N2243, 4W4000, 6N1152, 7W7583, 8N6663, 1054834, and 1054835.

• Performance Benefits: Ensures stable coolant circulation, reduces hot spots within the cylinder block, and helps prevent costly overheating failures.

By installing this pump, operators gain peace of mind knowing their Caterpillar 3408B will perform under constant heavy load conditions.

Fresh Water Pump for Caterpillar 3408B

This option is specifically designed as a new replacement water pump for the Caterpillar 3408B engine.

• Condition: Brand new – not rebuilt or remanufactured.

• Use Case: Ideal for operators seeking maximum longevity and reliability with zero prior service life.

• Benefits: Provides long-term dependability for critical applications such as standby power generation, offshore vessels, and mining equipment.

For customers running demanding fleets or remote operations, installing a new pump helps extend engine life and ensures uninterrupted service.

Rebuild Kits for Caterpillar 3408B Water Pumps

Fresh Water Pump Rebuild Kit for Caterpillar 3408 Engines

Instead of replacing the entire pump, operators can extend the life of their cooling system with a rebuild kit.

• Compatibility: Fits engines with arrangement numbers including 4W8050, 7C6039, 5Y0298, 5Y9416, 9Y0046, 9Y0657, 9Y0658, and 9Y0812.

• Contents: Includes essential components such as seals, bearings, and gaskets required to restore the pump’s efficiency.

• Advantages: Cost-effective solution compared to full replacement; minimizes downtime while restoring factory-level performance.

Water Pump Rebuild Kit for Caterpillar 3406 and 3408 Engines

For fleets with both 3406 and 3408 engines in service, this rebuild kit offers versatility.

• Engine Compatibility: Works with 3408 engines carrying arrangement numbers 2W7067 and 4W3801.

• Serial Number Range: Also applicable to engines with serial numbers 4TB 1 – 2986.

• Practical Use: Designed for workshops and operators who prefer in-house maintenance rather than outsourcing pump repairs.

By carrying this kit on hand, fleet managers can perform preventative service without waiting for complete pump replacements.

Silicone Coolant Hoses for Caterpillar 3408B

Silicone coolant hoses form the arteries of the cooling system, allowing water and coolant to flow seamlessly between the pump, radiator, and engine block. Each hose is cut to 1-foot lengths and engineered with reinforced silicone construction to withstand high temperatures and pressures.

Available Hose Sizes

• 3/4" Inside Diameter – Compact routing for smaller coolant passages.

• 1" Inside Diameter – Commonly used in standard coolant lines.

• 1 3/4" Inside Diameter – Heavy-duty hose for larger coolant pathways.

• 1 7/8" Inside Diameter – Precision fitment for specialized coolant circuits.

• 2" Inside Diameter – Widely applied in Caterpillar 3408B cooling loops.

• 2 1/8" Inside Diameter – Slightly oversized for secure fits on certain adapters.

• 2 1/4" Inside Diameter – Perfect for secondary coolant routing.

• 2 3/8" Inside Diameter – Reinforced for heavy-duty sections of the system.

• 2 1/2" Inside Diameter – High-flow coolant delivery line.

• 2 3/4" Inside Diameter – Thick-walled for durability under pressure.

• 3" Inside Diameter – Large-volume coolant circulation.

• 3 1/2" Inside Diameter – Heavy industrial applications requiring maximum flow.

• 4" Inside Diameter – Largest standard hose size in this catalog, used for primary coolant movement in high-power 3408B setups.

Advantages of Silicone Construction:

• Withstands extreme engine bay temperatures.

• Resists cracking, swelling, and chemical degradation.

• Provides longer life compared to standard rubber hoses.

By selecting the right diameter, operators ensure proper flow rates and avoid coolant starvation or overflow issues.

Hose Clamps for Caterpillar 3408B

Hose clamps secure coolant and fuel lines in place, preventing leaks that could compromise engine reliability. Each clamp in this catalog is rated for specific diameter ranges.

Clamp Options

• Clamp 10H – Diameter range 9/16" to 1-1/16".

• Clamp 3412320 – Diameter range 11/16" to 1-1/4".

• Clamp 4920417 – Diameter range 13/16" to 1-3/4".

• Clamp 5104592 – Diameter range 1" to 1.5".

• Clamp 3922846 – Diameter range 1-5/16" to 2-1/4".

• Clamp 3922847 – Diameter range 1-9/16" to 2-1/2".

• Clamp 3922847 (Oversize) – Diameter range 2-5/16" to 3".

• Clamp 5188036 – Diameter range 2-7/8" to 3.5".

Key Benefits:

• Prevents coolant loss under high vibration.

• Corrosion-resistant design ensures durability.

• Adjustable sizing allows flexible fit across hose diameters.

Using the correct clamp for each hose diameter is crucial to maintaining coolant pressure and preventing dangerous leaks.

Gauges for Monitoring Cooling System Health

A reliable water pump and cooling system are only as effective as the monitoring tools in place. Diesel Pro Power offers a range of gauges compatible with the Caterpillar 3408B:

• Mechanical Gauges (Standard) – Direct reading instruments for temperature and pressure.

• Mechanical Gauges with Alarm – Provide audible or visual alerts when thresholds are exceeded.

• Electrical Gauges (12 Volt & 24 Volt) – Compatible with Caterpillar 3408B electrical systems, allowing operators to monitor coolant health from the control panel.

Proper monitoring ensures early detection of potential cooling issues before they result in engine failure.

Why Diesel Pro Power for Caterpillar 3408B Water Pump Parts?

• Proven Trust: Serving over 40,000 satisfied customers in more than 180 countries.

• Fast Shipping: Orders ship within 24 hours with full tracking.

• Engine-Specific Catalogs: Every part here is dedicated to the Caterpillar 3408B, eliminating guesswork.

• Heavy-Duty Durability: Diesel Pro aftermarket water pumps, hoses, and clamps are built for the toughest applications.

• Expert Guidance: Backed by decades of Caterpillar expertise, offering installation tips and technical support.