SEALED POWER Standard Replacement Auxiliary Shaft Bearing — direct fit for Mercury Mountaineer 4.0L V6 SOHC (1998-2010). Genuine quality replacement built to OEM tolerances, ships to all 50 USA states from RevXSC.
Engineered by SEALED POWER as a standard replacement grade auxiliary shaft bearing for the 4.0L V6 SOHC engine, this 1881M matches factory mounting points and form factor so install requires no modification. Direct OEM-style replacement. Standard replacement spec — the same dimensions, materials and performance envelope as the original factory part.
| Year | Make / Model | Engine | Notes |
|---|---|---|---|
| 1998 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 1999 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2000 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2001 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2002 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2003 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2004 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2005 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2006 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2007 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2008 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2009 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
| 2010 | Mercury Mountaineer | 4.0L V6 SOHC | Auxiliary Shaft Bearing |
Always replace auxiliary shaft bearing components in matched sets where applicable, torque fasteners to factory spec, and inspect adjacent engine components for wear during installation. If you're not sure which variant matches your VIN, send us the last 8 digits of the VIN before checkout and we will confirm fitment.
Is 1881M a direct replacement?
Yes — SEALED POWER 1881M is built to OEM form/fit/function for the Mercury Mountaineer 4.0L V6 SOHC (1998-2010).
Do you ship to my state?
We ship to all 50 USA states. Tracking is provided.
What's the difference between Economy, Standard Replacement and Heavy Duty?
Economy is the value-priced option for everyday driving; Standard Replacement matches OEM spec; Heavy Duty uses upgraded materials for towing, fleet and severe service.
How can I confirm fitment?
Match year, make, model and engine (1998-2010 Mercury Mountaineer 4.0L V6 SOHC). When in doubt, send your VIN — we verify before dispatch.
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Note: The product image is for illustrative purposes only. Actual product may vary slightly in appearance, packaging, or labeling. Fitment and specifications are guaranteed to OEM standards.