Parts for Caterpillar 3408C – Engine Water Pump Section

The Caterpillar 3408C engine is a legendary V8 diesel powerhouse used across heavy-duty applications in marine, industrial, power generation, and construction sectors. Keeping this engine properly cooled is critical for ensuring reliability, efficiency, and extended service life. At the heart of the cooling system is the engine water pump, supported by a full range of rebuild kits, silicone coolant hoses, and hose clamps.

Below is a complete, expanded catalog of the Caterpillar 3408C water pump and related components, along with technical insights, application notes, and guidance on selecting the correct parts. This detailed section is designed to help operators, fleet managers, and technicians find exactly what they need to maintain their 3408C cooling system with confidence.

Engine Water Pumps for Caterpillar 3408C

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

This heavy-duty freshwater pump is engineered specifically for the Caterpillar 3408 series, including the 3408B and 3408C variants. It is designed to circulate coolant throughout the engine block and cylinder heads, ensuring optimal operating temperatures under continuous load.

• Compatibility: Direct fit for arrangement numbers such as 1167139, 1566896, 1773057, 1773058, 1773059, 2W6101, 4N2243, 4W4000, 6N1152, 7W7583, 8N6663, 1054834 & 1054835.

• Applications: Marine propulsion engines, stationary power generation sets, and industrial equipment.

• Key Benefits: Rugged construction, reliable sealing surfaces, and precise impeller geometry for efficient coolant circulation.

Engine Water Pump for Caterpillar 3406, 3408, 3408C, and C18

While primarily listed for the 3408C, this pump also extends compatibility to certain 3406 and C18 applications. Many fleet operators with mixed Caterpillar engine inventories prefer this unit because of its versatility.

• Design Notes: Manufactured to handle high-flow cooling requirements in large displacement engines.

• When to Choose This Pump: Ideal for operators who run fleets of Caterpillar V8 and inline-six engines and want streamlined spare part inventories.

Water Pump Rebuild Kits

Rebuild Kit for Caterpillar 3406 and 3408 Engines

For operators seeking cost-effective maintenance, the rebuild kit provides everything necessary to restore a worn water pump back to peak condition. Instead of replacing the entire pump, technicians can rebuild the unit in-house, minimizing downtime.

• Contents Typically Include: Bearings, seals, gaskets, and impeller replacement components.

• Compatibility: Engines with arrangement numbers 2W7067 & 4W3801.

• Best Use Cases: Ideal for fleets and marine operators who prioritize maintenance planning and wish to reduce replacement costs.

Silicone Coolant Hoses for Caterpillar 3408C

The 3408C engine’s cooling system depends not only on the pump itself but also on durable coolant hoses that resist wear, vibration, and extreme temperature fluctuations. Silicone hoses are preferred over rubber for their longevity and resistance to cracking, swelling, or hardening.

Range of Available Hose Sizes

Diesel Pro offers hoses in multiple diameters to suit different coolant line applications on the Caterpillar 3408C:

• 3/4" Inside Diameter

• 1" Inside Diameter

• 1 3/4" Inside Diameter

• 1 7/8" Inside Diameter

• 2" Inside Diameter

• 2 1/8" Inside Diameter

• 2 1/4" Inside Diameter

• 2 3/8" Inside Diameter

• 2 1/2" Inside Diameter

• 2 3/4" Inside Diameter

• 3" Inside Diameter

• 3 1/2" Inside Diameter

• 4" Inside Diameter

Advantages of Silicone Hoses:

• Withstand extreme heat and pressure without deformation.

• Longer service life compared to standard rubber hoses.

• Excellent resistance to coolant additives and chemicals.

• Reduce risk of hose failures that can lead to catastrophic engine overheating.

Hose Clamps for Secure Connections

High-performance hoses require equally reliable clamps to maintain leak-free connections. Diesel Pro provides a full range of stainless-steel clamps tailored to coolant and fuel hose applications.

Commonly Stocked Sizes for the 3408C:

• 9/16" – 1-1/16" effective diameter range.

• 11/16" – 1-1/4".

• 13/16" – 1-3/4".

• 1" – 1.5".

• 1-5/16" – 2-1/4".

• 1-9/16" – 2-1/2".

• 2-5/16" – 3".

• 2-7/8" – 3.5".

Key Features:

• Corrosion-resistant finish for marine and industrial environments.

• Secure grip under vibration and thermal expansion.

• Quick and easy installation with standard tools.

Mechanical & Electrical Gauges

While not directly part of the pump assembly, cooling system monitoring is essential for the Caterpillar 3408C. Diesel Pro provides mechanical gauges with and without alarms, as well as 12V and 24V electrical gauges.

• Purpose: Monitor coolant temperature and water pump efficiency.

• Benefit to Operators: Early detection of overheating prevents costly downtime and engine damage.

Why Choose Diesel Pro Power for Caterpillar 3408C Water Pump Parts

• Trusted Worldwide: Over 40,000 satisfied customers in 180+ countries rely on Diesel Pro for Caterpillar support.

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

• Engine-Specific Catalog: Every pump, kit, hose, and clamp listed here is curated specifically for the Caterpillar 3408C.

• Heavy-Duty Durability: Diesel Pro aftermarket components are built for the toughest applications—marine, industrial, and power generation.

• Expert Assistance: Caterpillar specialists are available to guide you through part selection, installation, and ongoing maintenance.