Aftermarket Mechanical Fuel Pump for Volvo Penta AQ120B–AQ251 Series – Replaces 841161-3, Sierra 18-7286
Aftermarket Mechanical Fuel Pump for Volvo Penta AQ120B–AQ251 Series – Replaces 841161-3, Sierra 18-7286 is backordered and will ship as soon as it is back in stock.
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Aftermarket Mechanical Fuel Pump for Volvo Penta AQ120B–AQ251 Serie...
Aftermarket Mechanical Fuel Pump for Volvo Penta AQ120B–AQ251 Series – Replaces 841161-3, Sierra 18-7286 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket mechanical fuel pump is designed for the Volvo Penta inboard applications listed below. It is intended for the XP stamped-steel pump configuration and provides a replacement solution for the original mechanical fuel pump used on specified AQ and BB engines.
The pump replaces Volvo Penta reference 841161-3. Related reference numbers include Volvo Penta 841161, specification numbers 867464 and 867465, Sierra Marine 18-7286, GLM 77011, and Mallory Marine 9-35425.
- Mechanical fuel pump for specified Volvo Penta inboard engines.
- For the XP stamped-steel pump application.
- Aftermarket replacement for the listed manufacturer and aftermarket references.
- Single replacement fuel pump; no additional kit components are specified for this product.
Part Number Matrix
Use the reference numbers below together with the engine model and pump configuration to help confirm compatibility before ordering. Number references are provided for identification and interchange searching; always compare the original pump and mounting arrangement.
| Brand or Reference | Part Number | Reference Type |
|---|---|---|
| Volvo Penta | 841161 | Reference number |
| Volvo Penta | 841161-3 | Replacement reference |
| Volvo Penta | 867464 | Specification number associated with AQ140A |
| Volvo Penta | 867465 | Specification number associated with AQ120B |
| Sierra Marine | 18-7286 | Aftermarket reference |
| GLM | 77011 | Aftermarket reference |
| Mallory Marine | 9-35425 | Aftermarket reference |
Engine & Model Compatibility
Compatibility is limited to the Volvo Penta inboard models and pump configuration listed below. Confirm the engine model, suffix, original pump design, mounting pattern, and fuel-line arrangement before installation.
| Brand | Engine Model | Application Detail | Related Reference |
|---|---|---|---|
| Volvo Penta | AQ120B | XP stamped-steel pump; specification 867465 | 841161-3 |
| Volvo Penta | AQ125A, AQ125B | XP stamped-steel pump application | 841161-3 |
| Volvo Penta | AQ131A, AQ131B, AQ131C, AQ131D | XP stamped-steel pump application | 841161-3 |
| Volvo Penta | AQ140A | XP stamped-steel pump; specification 867464 | 841161-3 |
| Volvo Penta | BB140A | XP stamped-steel pump application | 841161-3 |
| Volvo Penta | AQ145A, BB145A | XP stamped-steel pump application | 841161-3 |
| Volvo Penta | AQ151A, AQ151B, AQ151C | XP stamped-steel pump application | 841161-3 |
| Volvo Penta | AQ171A, AQ171C | XP stamped-steel pump application | 841161-3 |
| Volvo Penta | AQ230A, AQ230B | XP stamped-steel pump application | 841161-3 |
| Volvo Penta | AQ250A, AQ250B | XP stamped-steel pump application | 841161-3 |
| Volvo Penta | AQ251 | XP stamped-steel pump application | 841161-3 |
Technical Specifications
- Product Type
- Mechanical fuel pump
- Product Configuration
- Single replacement pump
- Application
- Volvo Penta inboard engines with the specified XP stamped-steel pump configuration
- Fuel System
- Mechanical fuel-pump application
- Primary Replacement Reference
- Volvo Penta 841161-3
- Aftermarket References
- Sierra Marine 18-7286; GLM 77011; Mallory Marine 9-35425
- Included Components
- One mechanical fuel pump only
What's in the Box
- 1 x aftermarket mechanical fuel pump
A mounting gasket, fittings, vent tubing, fuel lines, bolts, and other installation hardware are not specified as included with this single-pump product. Reuse only parts that are confirmed serviceable and appropriate for the application.
Installation Notes
- Review the engine service manual and verify the engine model, suffix, pump configuration, and replacement reference before beginning work.
- Disconnect the battery and shut off the fuel supply. Allow the engine to cool completely.
- Place absorbent rags or a suitable container beneath the pump to collect residual fuel.
- Mark the inlet and outlet fuel-line positions, then disconnect the lines carefully.
- Remove the pump mounting fasteners and take off the original pump.
- Clean the mounting surface and inspect the actuator-arm and mounting area for damage or contamination.
- Install the replacement pump using the correct serviceable gasket or sealing arrangement for the engine. A gasket is not specified as included with this product.
- Align the pump actuator mechanism correctly with the engine drive mechanism before tightening the mounting fasteners.
- Tighten the fasteners to the engine manufacturer's service specification.
- Reconnect the fuel lines to their original ports and secure all connections.
- Restore the fuel supply and battery connection. Prime the system according to the engine manufacturer's procedure.
- Start the engine and inspect the pump and all fuel connections for leaks before returning the vessel to service.
Troubleshooting & FAQ
Which engines does this fuel pump fit?
This pump is listed for Volvo Penta AQ120B, AQ125A/B, AQ131A/B/C/D, AQ140A, BB140A, AQ145A, BB145A, AQ151A/B/C, AQ171A/C, AQ230A/B, AQ250A/B, and AQ251 engines when equipped with the specified XP stamped-steel pump configuration.
What original part does this pump replace?
The primary replacement reference is Volvo Penta 841161-3. Volvo Penta 841161, specification numbers 867464 and 867465, Sierra Marine 18-7286, GLM 77011, and Mallory Marine 9-35425 are also listed as related references.
Is this an OEM Volvo Penta pump?
No. This listing is for an aftermarket replacement mechanical fuel pump. Volvo Penta and other brand numbers are provided as application and reference information only.
Does the package include a mounting gasket?
The company product record identifies this item as a single replacement pump and does not specify a mounting gasket as included. Confirm the required gasket or sealing arrangement for your engine before installation.
How can I avoid ordering the wrong pump?
Compare the original pump's body, mounting arrangement, actuator mechanism, fuel-line connections, and stamped or listed reference numbers. The engine model alone is not sufficient if the pump configuration differs.
What are common signs of a mechanical fuel-pump problem?
Possible symptoms include hard starting, stalling, hesitation, loss of power, or insufficient fuel delivery. Diagnose the complete fuel system and follow the engine manufacturer's testing procedure before replacing the pump.
Do I need professional installation?
Professional installation is recommended because the fuel system must be assembled correctly and checked carefully for leaks. Follow all marine fuel-system safety requirements and the engine service manual.
Safety & Important Information
- Work only in a well-ventilated area away from flames, sparks, heat, and ignition sources.
- Disconnect the battery and relieve or contain fuel-system pressure before removing fuel lines.
- Use proper marine-rated fuel-system components and replace damaged hoses, seals, or fittings.
- Check carefully for fuel leaks after installation and before operating the engine.
- Verify the engine model, pump configuration, dimensions, mounting pattern, and reference numbers before ordering.
- This is an aftermarket replacement and is not an OEM Volvo Penta component.
About Sea Sierra
- Marine Parts Selection — We provide replacement components for a wide range of marine engine applications.
- Application-Focused Listings — Product references and fitment information are organized to help you compare the replacement with your original part.
- Support for Installation Planning — Confirm the engine model and pump configuration before ordering, and consult the service manual for installation requirements.
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