Cummins 6BT Engine Parts - Marine Water Pump Section

Raw Water Pump (Marine Water Pump) for Cummins 6BT Marine Engines

When it comes to keeping your Cummins 6BT marine engine properly cooled, the raw water pump—also known as the marine water pump—is one of the most essential components. At Diesel Pro Power, we provide direct-replacement raw water pumps engineered specifically for 6BT marine applications, ensuring precise fitment, reliable performance, and protection from saltwater corrosion.

Raw Water Pump (Marine Water Pump) – 6BT Marine Engine – Offset Gear Drive, 11° Mounting Angle

This high-quality raw water pump is built specifically for the Cummins 6BT marine engine. It features a gear-driven spline shaft and is designed for marine use where durability under saltwater exposure is critical.

• Engine Compatibility: Cummins 6BT Marine

• Mounting Hole Offset: 11° from centerline of the drive gear shaft

• Rotation: Bidirectional — functions in both clockwise and counterclockwise engine setups

• Port Type: 1 3/4” Flange inlet/outlet

• Material: Marine-grade corrosion-resistant metal

• Drive Type: Spline drive with gear

This pump is a direct replacement for older 6BT marine cooling systems and is ideal for vessels operating in harsh saltwater environments.

Raw Water Pump (Marine Water Pump) – 6BT Marine Engine – Heavy-Duty Bidirectional Gear Drive

Another marine-specific option for Cummins 6BT users, this bidirectional pump provides flexible mounting and rugged construction for commercial and recreational marine engines alike.

• Engine Compatibility: Cummins 6BT Marine

• Drive Type: Gear-driven spline shaft

• Rotation: Bidirectional

• Port Type: 1 3/4” Flange

• Mounting: Standard bolt-on fitment for 6BT marine cooling housings

• Corrosion Protection: Designed for continuous saltwater contact

This model is an excellent fit for high-hour vessels or repower projects where the existing pump has worn down or suffered corrosion damage.

Impeller Puller Tool – For 6BT Marine Water Pump Service

Removing the impeller on a 6BT raw water pump can be challenging without the right tool. Diesel Pro Power offers a marine-grade impeller puller designed to safely extract worn or seized impellers from your Cummins 6BT raw water pump housing.

• Fits: 6BT Marine raw water pumps

• Purpose: Prevents damage to pump housing during impeller removal

• Material: Durable marine-grade alloy

• Use Case: Recommended for routine impeller maintenance or emergency repairs

This tool helps extend the life of your raw water pump by ensuring damage-free impeller servicing.

Why Choose Diesel Pro Power for Your 6BT Marine Cooling System?

With over 40,000 satisfied customers worldwide, Diesel Pro Power is the trusted source for marine engine components, especially for legacy and high-demand platforms like the Cummins 6BT. We offer fast shipping, expert service, and direct-fit replacement parts engineered for marine durability.

Our 6BT marine water pump catalog includes:

• Factory-tested raw water pumps

• Spline-drive gear housings designed for saltwater cooling circuits

• Tools and impellers tailored to the 6BT marine cooling system

Whether you're rebuilding a full marine cooling loop or replacing a single pump, we’ve got what you need to keep your 6BT running strong.