Cushion the connection at your rear suspension and keep movement controlled with the Mevotech Supreme Knuckle Bushing (MPN MS404344). This rear upper suspension knuckle bushing drops in as a direct-fit replacement for the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer — see the "Vehicles it fits" section for engine-level details.
Molded from high-grade natural rubber, it locates the knuckle, absorbs road vibration, and allows the controlled pivoting movement the suspension is designed for. As the rubber ages, hardens, cracks, or separates, you may notice clunking, imprecise handling, or added noise from the rear suspension — signs this bushing may need replacing.
- High-grade natural rubber construction for increased durability.
- OE-quality fit and performance for a straightforward replacement.
- Rear upper position — engineered for the listed applications.
If a worn knuckle bushing is the cause of your rear-end noise or sloppy handling, this part replaces it. Diagnose the underlying cause before ordering, since these symptoms can have other sources.
Interchange: 19473418 · BK851519 · BK851519PR · K201873
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
19473418, BK851519, BK851519PR, K201873, MS404344
Frequently Asked Questions
What is a suspension knuckle bushing?
It is a rubber bushing that locates the suspension knuckle, absorbs road vibration, and allows controlled pivoting movement between connected suspension components.
What vehicles does the MS404344 fit?
It is a direct-fit replacement for the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer. Check the "Vehicles it fits" section for engine details.
What position is this bushing?
This is a rear upper knuckle bushing for the listed applications.
What is this bushing made of?
It is made from high-grade natural rubber for increased durability.
What are signs this bushing may need replacing?
As the rubber ages, hardens, cracks, or separates, you may notice clunking, imprecise handling, or added noise from the rear suspension. Diagnose the cause before replacing.
