Mercury 65-150HP EFI / 4.5L-6.2L MPI Low Pressure Fuel Pump

Mercury Outboard Fitment

MerCruiser 4.5L Sterndrive Fitment

MerCruiser 6.2L Sterndrive Fitment

Mercury TowSports Fitment

Mercury MIE Inboard Fitment

OEM & Cross Reference Numbers

Related Fuel Supply Module Service Parts

The low-pressure pump works together with the high-pressure pump inside the Mercury Fuel Supply Module. When diagnosing an FSM fuel problem, test both sides of the system and inspect the internal seals before replacing parts.

Mercury 8M0245916 High-Pressure Fuel Pump

The matching high-pressure fuel pump used in compatible Mercury Fuel Supply Module applications. It provides the fuel pressure required by the engine's electronic fuel-injection system.

View Mercury 8M0245916 High-Pressure Pump

Mercury Fuel Supply Module Seal Kit - 7333

Opening the Fuel Supply Module to replace a pump? Inspect the seals and O-rings while the module is apart. The 7333 FSM Seal Kit is available for compatible Mercury Fuel Supply Module service.

View Mercury FSM Seal Kit

What This Part is Used For

The 8M0245917 low-pressure fuel pump supplies fuel into and through the Fuel Supply Module. Its job is to maintain an adequate supply of fuel for the high-pressure side of the EFI system.

The associated 8M0245916 high-pressure pump then produces the higher fuel pressure required by the engine's fuel-injection system. Both pumps must function correctly for the engine to maintain consistent fuel delivery.

Low-Pressure vs. High-Pressure FSM Pump

Common Signs of Low-Pressure Fuel Pump Problems

• Hard starting or extended cranking
• Fuel Supply Module is not receiving adequate fuel
• Loss of power during acceleration
• Engine hesitation under load
• Engine may run normally at lower RPM but lose power at higher RPM
• Insufficient fuel supply feeding the high-pressure pump
• Low-pressure pump fails electrical or fuel-delivery testing

Why Test Both FSM Pumps?

Problems on the low-pressure side can create symptoms that appear to be a failing high-pressure pump. If the 8M0245917 low-pressure pump cannot keep the Fuel Supply Module supplied, the 8M0245916 high-pressure pump may not be able to maintain proper fuel pressure.

For this reason, fuel delivery and fuel pressure should be tested before replacing either pump. If the FSM must be opened, inspect the other pump, electrical connections, internal passages, and module seals while it is disassembled.

Key Features and Benefits

• Mercury low-pressure Fuel Supply Module pump
• Mercury OEM part number 8M0245917
• Used on select 65-150HP EFI outboards
• Fits select 65HP and 80HP EFI Jet models
• Fits select 75, 80, 90, 100, 115, 135, and 150HP EFI engines
• Applications include SeaPro and Pro XS models
• Fits select 4.5L MPI MerCruiser 200HP and 250HP engines
• Fits select 6.2L MPI MerCruiser 300HP and 350HP engines
• Fits select 6.2L TowSports 320HP and 370HP engines
• Fits select 6.2L MIE 300HP, 350HP, and Jet 370 applications
• Matching 8M0245916 high-pressure pump linked above
• FSM seal kit linked above

FAQ

What is Mercury 8M0245917?
8M0245917 is the low-pressure electric fuel pump used inside compatible Mercury Fuel Supply Module assemblies.

Is 8M0245917 the low-pressure or high-pressure pump?
It is the low-pressure pump. The associated high-pressure pump is Mercury 8M0245916, which is linked above.

Does 8M0245917 fit Mercury 75-115HP outboards?
Yes. Verified applications include select 75, 80, 90, 100, and 115HP EFI engines beginning with serial number 2B095049, along with the SeaPro, Jet, and Pro XS applications shown above.

Does it fit Mercury 115 Pro XS?
Yes. Verified fitment includes the 115HP EFI Pro XS beginning with serial number 2B225488.

Does it fit Mercury 150HP EFI?
Yes. Verified fitment includes standard 150HP EFI beginning at 1B905505, 150HP EFI SeaPro beginning at 2B139139, and 150HP EFI Pro XS beginning at 2B550139.

Does it fit MerCruiser 4.5L engines?
Yes. Verified applications include select 4.5L MPI 200HP and 250HP Alpha / Bravo engines beginning at serial number 2A530778.

Does it fit MerCruiser 6.2L engines?
Yes. Verified applications include select 6.2L MPI 300HP and 350HP sterndrive engines beginning at serial number 2A530776, along with the MIE and TowSports versions shown above.

What high-pressure pump goes with this pump?
Mercury 8M0245916 is the high-pressure FSM pump linked above for compatible applications.

Should I replace both fuel pumps together?
Not automatically. Test both the low- and high-pressure sides before replacing components. Replace the pump or pumps that fail fuel-delivery, pressure, or electrical testing.

Should I replace the FSM seals while changing this pump?
Inspect the seals whenever the Fuel Supply Module is opened. The 7333 FSM Seal Kit is linked above for convenient service.

How do I verify fitment?
Match the engine model and serial number to the application table above and confirm that the Mercury Fuel Supply Module parts diagram specifies 8M0245917.

Searchable Terms

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