QFS High & Low Pressure Fuel Pumps for Mercury Marine 115-300HP EFI Optimax Outboard Engines, Restores OE Performance

★★★★★ 4.7 19 reviews

$316.98
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$316.98
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Product details

Management number 218219750 Release Date 2026/05/03 List Price $126.79 Model Number 218219750
Category
  • HFP-CPN1 is a complete dual-pump solution designed to replace OE # 855427A1, 855432A07, 855432A1, 855432A2, 855434A1, 880596T55, 881705A1, 888725T1, 889441T (High Pressure) and 855843, 8558432, 85698414, 855843-2, 855843-3, 8M0047624 (Low Pressure) in one kit
  • Specifically engineered for Mercury EFI and Optimax outboards within the 0G960500 THRU 0T178499 serial range, providing a precision fit for the factory fuel system
  • Comprehensive System Refresh: This kit includes the high-pressure pump (VST), the low-pressure lift pump, specialized rubber isolators to dampen vibration, and marine-grade hose clamps for a leak-proof installation
  • Restores the entire fuel delivery cycle—the lift pump ensures the vapor separator tank remains full while the high-pressure pump maintains the atomization needed to resolve engine surging, bogging under load, and loss of top-end power
  • Manufactured from advanced, ethanol-resistant materials, these pumps are built to withstand the corrosive effects of modern marine fuels, preventing the internal seizure and "heat-soak" failure common in high-heat engine bays
  • Get back on the water with confidence – Guaranteed – As a US-based small business, we know that offshore reliability is everything. Backed by our lifetime warranty, we stand by our products and our community

Fit Type Vehicle Specific Fit
Gas Type Petrol
Brand Name HFP
Unit Count 2.0 Count
Item Weight 3 Pounds
Manufacturer HFP
Model Number HFP-CPN1
Body Material Aluminum, Alloy Steel, Plastic
Material Type Metal
Mounting Type Tank Mount
Product Grade Replacement Part
Product Style Fuel Pump
Connector Type Threaded, Hose Barb
Item Type Name Fuel Pump
Operation Mode EFI
Item Dimensions 5.5 x 9 x 3 inches
Specification Met OEM
Auto Part Position Inside
Automotive Fit Type Vehicle Specific Fit
Included Components High Pressure Fuel Pump, Low Pressure Fuel Pump, Hose Clamps, Rubber Isolators
Inlet Connection Size 0.38 Inches
Inlet Connection Type Hose Barb
Part Interchange Info replacement
Outlet Connection Size 0.31 Inches
Outlet Connection Type threaded
Manufacturer Part Number HFP-CPN1
OEM Equivalent Part Number High Pressure Pump: 855427A1, 855432A07, 855432A1, 855432A2, 855434A1, 880596T55, 881705A1, 888725T1, 889441T, Low Pressure Pump: 855843, 8558432, 85698414, 855843-2, 855843-3, 8M0047624
Compatible with Vehicle Type Boat
Manufacturer Warranty Description Lifetime Warranty

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4.7 out of 5
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19 ratings | 8 reviews
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