3858261 3857650 Fuel Pump Plug Connector for Volvo Penta OMC | JLM Marine

Fuel Pump Plug Connector – Fits Volvo Penta & OMC 4.3L, 5.0L, 5.7L, 7.4L, 8.2L Engines

This Fuel Pump Plug Connector is designed for Volvo Penta and OMC high-pressure fuel injection systems across a wide range of engine displacements—from 4.3L to 8.2L. Compatible with multiport fuel injection (MFI) applications from the mid-1990s through the early 2000s, this connector ensures reliable electrical contact for fuel pump operation in both recreational and performance marine engines.

Direct replacement for: Volvo Penta 3858261, 3857650, 3857986, 3857985, 3854620, 3850810, 3850809, 3855958, 3854280, 3858714; OMC 986865, 3858261, 3857986, 3857985, 3854620, 3850810, 3850809, 988037, 3855958, 3854280, 3857650; Mercury Marine 805656A2.

• Plug connector for high-pressure fuel pumps in MFI systems
• Fits engines from 5.0L (302 cu in) up to 8.2L (502 cu in)
• Direct OEM-spec connector design for reliable electrical performance

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.

Package Contents

• 1 × Fuel Pump Plug Connector as pictured
• The package contains all the parts shown in the picture

Installation Guide

1. Disconnect the battery negative terminal to prevent electrical shorts during installation.
2. Locate the fuel pump on your Volvo Penta or OMC engine, typically mounted near the fuel rail or on the engine block.
3. Inspect the old connector for damage, corrosion, or melting; clean the mating surfaces if necessary.
4. Disconnect the old plug by releasing any locking tabs or clips and gently pulling it away from the fuel pump terminals.
5. Align the new connector with the fuel pump terminals, ensuring proper orientation and pin alignment.
6. Push the connector firmly until you hear or feel a click, confirming a secure lock.
7. Check for secure seating by gently tugging on the connector; it should not pull free easily.
8. Reconnect the battery and turn the ignition to the "on" position (without starting) to prime the fuel system.
9. Inspect for fuel leaks around the pump and connector area before starting the engine.
10. Start the engine and verify smooth operation and stable fuel pressure.

Troubleshooting & FAQ

How do I confirm this connector fits my fuel pump?
Compare the connector shape, pin count, and part numbers listed in the cross-reference table with your existing fuel pump connector. Verify your engine model and year against the compatibility chart above.

What are signs that my fuel pump connector needs replacement?
Common symptoms include intermittent fuel pump operation, engine stalling, difficulty starting, melted or corroded connector pins, or visible damage to the connector housing.

Can I use this connector on engines that require two fuel pumps?
Yes. Certain Volvo Penta 302 5.0L and 351 5.8L (1994) configurations use two high-pressure fuel pumps; you will need two connectors for those applications.

How does this aftermarket connector compare to the OEM part?
This 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.

How fast do you ship and how much does it cost?
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.

What is your warranty and return policy?
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.