National Differential Pinion Bearing HM88542
National Differential Pinion Bearing HM88542

Outer Differential Pinion Bearing for 2004-2006 Dodge Ram 1500 & More - National HM88542

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$36.99
MPN: HM88542
Item Package Quantity: 1
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National Differential Pinion Bearing P/N:HM88542
National Differential Pinion Bearing P/N:HM88542
$36.99

Help keep the pinion turning smoothly inside your differential with the National Differential Pinion Bearing, part number HM88542. It fits many vehicles, among them the 2004-2006 Dodge Ram 1500, 2002-2005 Chevrolet Silverado 1500 and 1994-2002 Dodge Ram 2500, and is a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list.

A differential pinion bearing supports the pinion gear shaft in the differential housing. It lets the pinion rotate under load and helps hold it in position against the ring gear. If a worn pinion bearing is causing noise or play in your axle, this bearing replaces it.

  • Part type: differential pinion bearing
  • Position: cataloged for the front outer and rear outer positions
  • Fitment: listed for all engines on the named applications; the Buyer's Guide tab shows the quantity for each vehicle
  • Brand: National, part number HM88542

A pinion bearing may need replacing if the axle whines or growls in a way that changes as you accelerate or coast, or if there is play at the pinion yoke or flange. Diagnose the cause before replacing parts. When installing, set the pinion bearing preload to the vehicle service information.

Frequently Asked Questions

Is this the right pinion bearing for a 2004-2006 Dodge Ram 1500?

Yes. National HM88542 is listed for the 2004-2006 Dodge Ram 1500 with all engines. Use the Buyer's Guide tab to confirm your exact vehicle.

What other vehicles does this bearing fit?

It fits many vehicles, including the 2002-2005 Chevrolet Silverado 1500 and the 1994-2002 Dodge Ram 2500. The Buyer's Guide tab has the complete chart.

What does a differential pinion bearing do?

It supports the pinion gear shaft in the differential housing, so the pinion can turn under load while staying positioned against the ring gear.

Which position is this bearing for?

The catalog lists National HM88542 for the front outer and rear outer positions.

What are signs a pinion bearing may need replacing?

An axle whine or growl that changes between accelerating and coasting, or play at the pinion yoke or flange, may be signs of a worn bearing. Diagnose the cause before replacing parts.

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