Prothane 25-48101 Radius Arm to Chassis Polyurethane Bushing Kit

The Prothane 25-48101 is a radius arm to chassis bushing kit engineered for Rover Range Rover models from 1972 to 1985. The radius arm connects the control arm to the chassis, controlling fore-and-aft wheel movement during acceleration and deceleration. When these bushings wear out, drivers typically experience handling instability, wandering steering, or unwanted wheel movement — all signs it's time for a replacement.

Why Upgrade to Polyurethane?

• Outlasts OEM rubber: Factory rubber bushings are prone to cracking, rotting, and deteriorating over time — Prothane's polyurethane compound resists physical wear, road grime, and automotive fluids far more effectively
• Improved handling response: Polyurethane maintains its shape under the stress of driving, keeping the caster angle consistent and reducing wheel hop and steering vagueness
• Direct replacement fit: Designed to install in the factory radius arm mounting locations with no modifications required
• Available in red or black: Both colors use the same high-performance polyurethane formula; black bushings include a small amount of graphite which may help reduce squeaking
• Includes pre-lube: Kit ships with Prothane's supplied grease — proper lubrication at installation is essential for squeak-free performance
• Made in the USA: Manufactured domestically by Prothane, a trusted suspension specialist since 1991
• Lifetime warranty: Prothane guarantees this product against defects in materials and workmanship for as long as the original purchaser owns the vehicle

Replacing worn radius arm bushings with Prothane's polyurethane kit restores proper suspension geometry and delivers a noticeable improvement in steering precision and overall handling confidence compared to degraded OEM rubber components.