Marine Water Pump for Cummins B, QSB and C Series Marine Engines

Product Specifications

Technical Overview: This NEW marine water pump is engineered for seawater and raw-water circulation in Cummins B, QSB and C Series marine engines. It features a bidirectional design capable of turning right or left, along with a 1 3/4” flange port type optimized for high-volume cooling flow in continuous-duty marine applications.

Engine Compatibility:
This seawater/raw-water pump fits the following Cummins marine engines:
• QSB5.9 Marine
• QSB6.7 Marine
• 6C8.3 Marine
• 6CT8.3 Marine
• 6CTA8.3 Marine

Included Components:
• (1) Marine water pump assembly

Key Technical Features:
• Bidirectional rotation (turns right or left)
• 1 3/4” flange port type
• O-ring end-cover packing
• Mechanical seal assembly
• High-volume seawater/raw-water flow
• Bronze heavy-duty marine-grade casting
• Marine-grade 3X-series non-magnetic shaft
• Replacement for Cummins 5268375, 4948142, 3974455 and Sherwood P2701X family numbers

FAQ

1. What does this marine water pump do?
This pump circulates seawater and raw water through Cummins B, QSB and C Series marine cooling systems to maintain stable operating temperature.

2. What engines is it compatible with?
It fits Cummins QSB5.9, QSB6.7, 6C8.3, 6CT8.3 and 6CTA8.3 marine engines.

3. Is the pump bidirectional?
Yes. This marine water pump is fully bidirectional and can rotate right or left.

4. What is the port type?
It uses a 1 3/4” flange port type designed for high seawater/ raw-water flow.

5. What materials are used?
It is built with bronze marine-grade casting, a mechanical seal and a corrosion-resistant 3X-series non-magnetic shaft.

6. Is this a NEW pump and covered by warranty?
Yes. This NEW marine water pump is covered by Diesel Pro warranty in accordance with policies active at the time of purchase.

Diesel Pro provides fast worldwide shipping, reliable marine components and warranty support trusted by marine professionals across the industry.