QFS Low-Pressure Fuel Pump for Mercury & Mariner Optimax DFI

QFS Low-Pressure Fuel Pump for Mercury & Mariner Optimax DFI 115-300HP, Lift Pump Repair
- HFP-612 is engineered as a direct replacement fuel pump for OE # 855843, 855843-2, 855843-3, 85698414, 8558432, and 8M0047624, providing a precision fit for all years of Mercury and Mariner Optimax / DFI outboard engines
- This low-pressure lift pump serves as the vital first stage of the fuel system, drawing fuel from the main tank to feed the vapor separator tank, ensuring the high-pressure system never starves during high-speed operation or heavy acceleration
- Pre-Assembled Installation Kit: Includes the electric fuel pump pre-attached to the mounting bracket with the integrated wiring harness, plus application-specific fuel hoses and stainless steel hose clamps
- Optimized for the demanding performance of 2.5L and 3.0L V6 Optimax, Pro XS, and Racing XS models, restoring factory fuel volume to eliminate common issues like surging, mid-range bogging, and loss of top-end RPM
- Manufactured from advanced, ethanol-resistant materials, this pump is built to withstand the chemical breakdown caused by modern marine fuels, preventing internal diaphragm failure and motor seizure in harsh saltwater environments
- Get back on the water with confidence – Guaranteed – As a US-based small business, we understand that for an Optimax owner, reliability is everything. Backed by our lifetime warranty, we stand by our products and our community
SPECIFICATIONS:

Part Number: HFP-612
Manufacturer: Quantum Fuel Systems
Interchange: Mercury 8558432, 8M0047624
Condition: 100% BRAND NEW
Bracket: 100% Stainless Steel
Amperage Draw: OE Spec
Flow: OE Pressure and Volume
Warranty: LIFETIME
Country USA
Brand HFP
Manufacturer HFP
Binding Automotive
ItemPartNumber HFP-612
Model HFP-612-2
Warranty Lifetime Warranty
Size Fuel Pump
ReleaseDate 0000-00-00

Country	USA
Brand	HFP
Manufacturer	HFP
Binding	Automotive
ItemPartNumber	HFP-612
Model	HFP-612-2
Warranty	Lifetime Warranty
Size	Fuel Pump
ReleaseDate	0000-00-00

QFS Low-Pressure Fuel Pump for Mercury & Mariner Optimax DFI 115-300HP, Lift Pump Repair

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