Sea Water Pump With 4.5" Pulley 3855079 3852399 3851982 Fits for Volvo Penta Engine 3.0GS 4.3GI 5.7GI 7.4GI 8.2GSI Replacement
Sea Water Pump With 4.5" Pulley 3855079 3852399 3851982 Fits for Volvo Penta Engine 3.0GS 4.3GI 5.7GI 7.4GI 8.2GSI Replacement is backordered and will ship as soon as it is back in stock.
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Powering 10,000+ Commercial Fleets
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One Year Warranty
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Easy 60-day Return
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Expert support & Fitment Guarantee
Description
Description
Sea Water Pump With 4.5" Pulley — Fits Volvo Penta Engine 3.0GS, 4.3GI, 5.7GI, 7.4GI, 8.2GSI Replacement
This new aftermarket sea water pump with a 4.5" pulley is designed to provide reliable cooling for Volvo Penta gasoline marine engines. It is a precision replacement part engineered to ensure optimal raw water circulation and comes as a single unit.
Part Details
- Condition: New, aftermarket replacement
- Quantity: 1 unit
- Pulley Diameter: 4.5 inches
- Function: Raw water circulation pump for engine cooling
- Quality: Engineered to meet or exceed OEM performance standards
Compatible Part Numbers
- 3855079
- 3852399
- 3851982
Compatible Engines
- Volvo Penta 3.0GS
- Volvo Penta 4.3GI
- Volvo Penta 5.7GI
- Volvo Penta 7.4GI
- Volvo Penta 8.2GSI
Compatible Equipment
- Volvo Penta Marine Gasoline Engines
This sea water pump is essential for the proper operation of your marine engine’s cooling system. It circulates raw water through the heat exchanger to prevent engine overheating, ensuring reliable cooling performance. The 4.5" pulley and mounting points provide exact-fit installation, making replacement straightforward and efficient.
Constructed with corrosion-resistant materials suitable for harsh marine environments, this pump offers durability and longevity. It is a cost-effective aftermarket alternative that maintains high quality and performance while reducing maintenance costs compared to OEM parts.
Ideal for marine engine maintenance, boat repair, and preventive servicing, this replacement sea water pump helps keep your Volvo Penta engine running cool and dependable on the water.
Package Contents
- 1 × Sea Water Pump with 4.5" Pulley
1 Year Warranty
1 Year Warranty
Fab Heavy Parts is excited to offer a 12-month warranty on all new replacement/aftermarket parts starting from your original purchase date.
Enjoy peace of mind with Fab Heavy Parts!
For more warranty details, please check out our warranty policy.
Fast Delivery
Fast Delivery
Estimated delivery time 3-6 workdays
No Core Charge
No Core Charge
We don't have a core charge for any products.
About This Item
- Direct OEM replacement — verified cross-reference fitment for Sea Water Pump With 4.5" Pulley 3855079 3852399 3851982 Fits for Volvo Penta Engine 3.0GS 4.3GI 5.7GI 7.4GI 8.2GSI Replacement
- Precision-cast aluminum housing for long-service durability under continuous load
- High-flow impeller design delivers optimal coolant circulation, preventing overheating
- Pressure-tested to OEM specifications before shipment — zero-defect guarantee
- Drop-in replacement — no modifications, adapters, or re-engineering required
- Reinforced bearing seats extend service life beyond standard aftermarket alternatives
- Compatible with standard coolant types — no special fluids required
- Backed by a 1-year manufacturer warranty covering defects in materials and workmanship
Superior Cooling Efficiency
Our precision-engineered impeller delivers higher flow rates than OEM specifications, ensuring optimal cooling performance even under extreme operating conditions — ideal for high-cycle heavy equipment applications.
Built for Long-Service Durability
Constructed from premium cast aluminum with reinforced bearing housings, this pump withstands thousands of operating hours with minimal wear. Pressure-tested to 2.5× OEM spec before shipment — no surprises in the field.
Precision Fitment — Zero Modifications
Every pump is manufactured to exact OEM tolerances with zero-clearance mounting. Drop-in replacement — no adapters, no re-engineering, no downtime surprises.
How We Compare
| Specification | FAB Heavy Parts | OEM Original | Generic Aftermarket |
|---|---|---|---|
| Flow Rate | OEM+ (Higher Flow) | OEM Spec | Below OEM |
| Warranty | 1 Year | 1 Year | 90 Days or None |
| Fitment Accuracy | Exact OEM Tolerances | Exact OEM Tolerances | Approximate |
| Pressure Tested | ✓ Pre-shipment | ✓ Yes | ✗ Rarely |
| Price Tier | Mid-range | Premium | Budget |
Frequently Asked Questions
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What Our Customers Say
"Exact fit, no modifications needed. Installed in under an hour and the engine runs cooler than ever."
"Better quality than the OEM part we replaced. Pump has been running strong for 6 months with zero issues."
"Fast shipping, well-packaged, and the fitment was spot-on. Will order again for our other units."
"Ordered 3 units for our fleet. All installed without issues. Great value compared to OEM pricing."










