Mechanical Fuel Pump – Fits Volvo Penta AQ120-AQ251 Series

Mechanical Fuel Pump – Fits Volvo Penta AQ120-AQ251 SeriesMechanical Fuel Pump Fits Volvo Penta AQ120 AQ251 Series (Replaces 841161, 18 7286) This aftermarket mechanical fuel pump is designed for a range of 4 cylinder Volvo Penta engines, including the AQ120B through AQ251A series. It provides reliable fuel delivery from the tank to the carburetor and includes a provision for the vent tube. This is a direct replacement for Volvo Penta part numbers 841161, 841161 3, 867464, and 867465, as well as aftermarket

Mechanical Fuel Pump – Fits Volvo Penta AQ120-AQ251 Series (Replaces 841161, 18-7286)

This aftermarket mechanical fuel pump is designed for a range of 4-cylinder Volvo Penta engines, including the AQ120B through AQ251A series. It provides reliable fuel delivery from the tank to the carburetor and includes a provision for the vent tube.

This is a direct replacement for Volvo Penta part numbers 841161, 841161-3, 867464, and 867465, as well as aftermarket parts Sierra 18-7286, GLM 77011, and Mallory 9-35425.

• Fuel Type: Gasoline
• Installation: Engine Block Mounted
• Included: Fuel pump and mounting gasket

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• 1 x Fuel Pump (841161)
• 1 x Mounting Gasket

Installation Guide

1. Safety First: Disconnect the battery and ensure the engine is cool. Work in a well-ventilated area and have a fire extinguisher nearby.
2. Locate Pump: Find the existing mechanical fuel pump on the engine block.
3. Disconnect Lines: Place a rag under the connections to catch fuel. Carefully disconnect the inlet, outlet, and vent tube fuel lines.
4. Remove Old Pump: Unbolt the old pump from the engine block and remove it along with the old gasket.
5. Clean Surface: Clean the mounting surface on the engine block to ensure a good seal with the new gasket.
6. Install New Pump: Place the new gasket, then install the new fuel pump. Tighten the mounting bolts to the manufacturer's specified torque.
7. Reconnect Lines: Securely attach the inlet, outlet, and vent tube lines to the new pump.
8. Check for Leaks: Reconnect the battery. Prime the fuel system and start the engine. Carefully inspect all connections for any signs of fuel leaks.

Troubleshooting & FAQ

Q: How do I confirm this fits my engine?
A: Check your engine model against the compatible models listed above. You can also verify by matching your existing part number with the ones in our Part Number Cross-Reference table.

Q: What are the common signs of a failing fuel pump?
A: Symptoms include difficulty starting, engine sputtering at high speeds, loss of power, or stalling. A visual inspection may also reveal fuel leaks from the pump housing.

Q: How often should I replace my mechanical fuel pump?
A: Mechanical fuel pumps do not have a fixed replacement interval, but they wear over time. Consider replacement as part of preventative maintenance if the engine is old or if you experience performance issues.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.