Smooth out on- and off-road handling with the Rancho RS5000X Suspension Shock Absorber (RS55229), a FRONT-position damper that drops in as a direct-fit replacement for the 1995-2001 Ford Explorer, 2001-2003 Ford Explorer Sport, 2001-2005 Ford Explorer Sport Trac, 1998-2011 Ford Ranger, 1999 & 2001 Mazda B2500, 1998-2007 Mazda B3000, 1998-2010 Mazda B4000, and 1997-2001 Mercury Mountaineer — see the Buyer's Guide tab for the full list. A shock absorber damps spring and suspension movement to keep the tire planted and control body motion.
- Cross Tuned technology: Rancho's exclusive rebound valving system and advanced compression phase are tuned to improve overall handling and performance on and off road.
- Strong and durable: 16 mm nitro-carburized piston rod resists scuffs and corrosion, with double-welded loops at stress areas, a 35 mm sintered iron piston, and a polyvinyl protective boot.
- Twin-tube body: large 2 1/4-inch twin-tube body filled with all-weather fluid for cooler operation, rated to withstand internal temperatures from -40 to 248°F; nitrogen gas pressurized to 150 PSI to reduce damping fade and foaming.
- Smooth ride: polyurethane rebound bumper and rubber bushings help absorb harshness while the fluon-banded piston responds to changing road conditions.
Progressive Engagement Valving and a Compression Control Valve are custom-tuned per vehicle to soften low-speed impacts and regulate fluid transfer, while a low-friction, self-lubricating seal retains gas and oil. Shocks wear as a pair — replacing both fronts together helps keep ride and damping balanced. Backed by Rancho's Limited Lifetime Warranty.
Interchange: 813043 · MS3431481B · TS3431481B · TS3431492B · 341519 · 8L5Z18124AJ · 8L5Z18124AK · G63678 · 341302 · 561001 · 210220 · 37122 · SH81893 · RS5229 · 12140187
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does the Rancho RS55229 fit?
It's a FRONT direct-fit for the Ford Explorer, Explorer Sport, Explorer Sport Trac and Ranger, Mazda B2500, B3000 and B4000, and Mercury Mountaineer. See the Buyer's Guide tab for the exact years.
Is this a front or rear shock?
The catalog lists this RS5000X shock in the FRONT position for the applications shown.
What is Cross Tuned technology?
It's Rancho's exclusive rebound valving system paired with an advanced compression phase, tuned to improve overall on- and off-road handling and performance.
How many shocks should I buy?
Shocks wear as a pair, so replacing both front units together helps keep ride quality and damping balanced. Order the quantity your vehicle requires.
Does it come with a warranty?
Yes. This Rancho RS5000X shock is backed by Rancho's Limited Lifetime Warranty.
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