Fuel Pump – GM (85843539)

Fuel Pump supplies fuel at the volume and pressure the engine management expects. A pump that is weak rather than dead produces intermittent symptoms that are easy to misdiagnose.

Replace the Fuel Pump when the engine loses power under sustained load or when the pump draws more current than specification. A pump that is failing electrically often works again once it cools.

This Fuel Pump is listed under part number 85843539, filed under Fuel Pumps & Senders. If the original number is unreadable, send us the VIN and we will confirm the reference before dispatch.

The stock here is genuine GM, and this Fuel Pump keeps the original engineering number, which matters once a number has been superseded more than once.