841161 Fuel Pump for Volvo Penta AQ120B AQ140A BB140A AQ125B AQ131A AQ131B AQ131C AQ131D AQ145A AQ145B BB145A AQ151A AQ151B AQ151C AQ171A AQ171C | JLM Marine

Fuel Pump for Volvo Penta AQ Series 4 Cylinder – Replaces 841161, 18-7286

This aftermarket fuel pump is engineered to fit Volvo Penta AQ series 4-cylinder engines, including models equipped with B21, B23, and B25 engine blocks. Designed for reliable fuel delivery in marine applications, it ensures consistent performance across a wide range of AQ-series sterndrive and inboard configurations.

This replacement directly cross-references Volvo Penta OEM part numbers 841161 and 841161-3, as well as aftermarket equivalents from Mallory (9-35425), Orbitrade (17161), Crom (117030), and Carter (60029). It provides a cost-effective solution without sacrificing fitment or functionality.

• Includes 1 fuel pump and 3 gaskets for complete installation
• Compatible with later versions of AQ120B and AQ140A models
• Fits Volvo Penta B-series 4-cylinder marine engines (B21, B23, B25)

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 × Fuel Pump
• 3 × Gaskets

Installation Guide

1. Disconnect the negative battery cable and relieve fuel system pressure before beginning work.
2. Remove the engine cover (if applicable) and locate the existing fuel pump mounted on the engine block.
3. Disconnect fuel inlet and outlet hoses, using a container to catch any residual fuel.
4. Remove the mounting bolts securing the old fuel pump to the engine block.
5. Carefully pull the old pump away from the engine and discard the used gaskets.
6. Clean the mounting surface on the engine block, removing all old gasket material and debris.
7. Install the new gasket(s) onto the mounting surface, ensuring proper alignment with bolt holes.
8. Position the new fuel pump onto the engine block, aligning the pump arm with the camshaft eccentric.
9. Hand-tighten the mounting bolts, then torque to manufacturer specifications in a cross pattern.
10. Reconnect the fuel inlet and outlet hoses, securing all clamps tightly to prevent leaks.
11. Reconnect the battery, prime the fuel system, and inspect all connections for leaks before starting the engine.
12. Start the engine and allow it to idle while checking for proper fuel delivery and any signs of leakage.

Troubleshooting & FAQ

Q: How do I confirm this fuel pump fits my Volvo Penta engine?
A: Cross-reference your engine model with the compatibility table above. Verify that your original pump matches OEM part number 841161 or 841161-3. If your model is listed but you notice physical differences, do not proceed with installation.

Q: What are the signs that my fuel pump needs replacement?
A: Common symptoms include engine stalling, difficulty starting, loss of power under load, or audible sputtering during operation. If you suspect fuel delivery issues, inspect the pump for cracks, leaks, or a failed diaphragm.

Q: How often should I replace the fuel pump on my Volvo Penta engine?
A: Mechanical fuel pumps typically last several years under normal conditions. Replace the pump if you experience fuel delivery problems or during major engine service intervals (typically every 500–1,000 operating hours, depending on usage).

Q: Are the gaskets included, or do I need to purchase them separately?
A: This kit includes 3 gaskets for complete installation. You do not need to purchase additional gaskets unless you require spares for future maintenance.

Q: What is the difference between this aftermarket pump and the OEM Volvo Penta part?
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.