Description
Quicksilver 861155A3 Low Pressure Fuel Boost Pump
Quicksilver 861155A3 is a genuine Quicksilver low pressure fuel boost pump for select MerCruiser sterndrive and inboard installations. This fuel system service kit is used as a low pressure boost pump on compatible MCM/MIE applications and includes the pump, fittings, lead wires, and multi-pin connector shown in the product images.
Key Features
- Genuine Quicksilver low pressure fuel boost pump
- Part number: 861155A3
- Supersedes prior part number 861155A2
- Used as a low pressure boost pump for select MerCruiser sterndrive and inboard installations
- Includes pump, connectors, lead wires with multi-pin connector, fittings, and O-rings as shown
- Designed for compatible MerCruiser fuel system service and replacement
Fitment / Product Details
- Brand: Quicksilver
- Part Number: 861155A3
- Supersedes: 861155A2
- Product Type: Low pressure fuel boost pump
- Application: Select MCM/MIE 4.3L/LH, 5.0L Gen+, and 5.7L Gen+ engines
- Boost Pump Applications: Select MCM/MIE 5.0L MPI, 350 Mag MPI, MX 6.2L MPI, and 496 Mag/8.1S engines
- Engine Style: Inboard/IO
- UPC: 745061448391
- Country of Origin: MX
- Prop 65: No
- Fitment Note: Match part number 861155A3 to your MerCruiser model, engine family, serial number, fuel system, owner’s manual, or service manual before ordering.
What’s Included
- Low pressure fuel boost pump
- Connectors and lead wires with multi-pin connector
- Fittings and O-rings shown in the product images
Why You Should Buy
- Correct genuine Quicksilver fuel boost pump for applications requiring 861155A3
- Designed for compatible MerCruiser sterndrive and inboard fuel system service
- Useful for replacing a weak, worn, damaged, or failed low pressure boost pump
- Includes the related fittings and connector components shown for the service application
Common Applications
- MerCruiser MCM/MIE 4.3L/LH fuel system service
- MerCruiser MCM/MIE 5.0L Gen+ and 5.7L Gen+ applications
- Boost pump service on select MCM/MIE 5.0L MPI, 350 Mag MPI, MX 6.2L MPI, and 496 Mag/8.1S engines
- Applications that specify Quicksilver 861155A3 or superseded part number 861155A2
FAQ
- Is this a genuine Quicksilver part? Yes. This is a genuine Quicksilver low pressure fuel boost pump.
- What part number does this replace? This part supersedes 861155A2.
- What is included? The kit includes the pump, connectors, lead wires with multi-pin connector, fittings, and O-rings shown in the product images.
- Does this fit every MerCruiser engine? No. It fits select MCM/MIE and boost pump applications only. Confirm by part number, model, serial number, and fuel system before ordering.
- Need help confirming fitment? Contact us before ordering and our parts team can help verify compatibility: Ask a Parts Pro.