Wishbone inner bush rear. Porsche 924S / 944  ❭  477407181B

Wishbone inner bush rear.
OE Match rear wishbone inner bushing, designed as a direct replacement suspension bushing for the rear lower control arm (wishbone) on selected Porsche 924S and Porsche 944 models.
Sold each. 2 required per vehicle.

Fits:
Porsche 924 1976 - 1985
Porsche 924S 1986 - 1988
Porsche 944 1982 - 1985

Diagram Ref No 11.

This product is an OE Match replacement inner rear wishbone bush that fits into the inner pivot of the rear lower control arm (wishbone) on classic Porsche sports cars.

The rear wishbone inner bushing allows the control arm to pivot smoothly relative to the chassis while absorbing road shock and vibration. It plays a major role in:
•  Maintaining rear suspension geometry
•  Damping vibration and noise
•  Supporting lateral and longitudinal loads
•  Providing stable wheel alignment under load.

Without a properly functioning bushing, the rear suspension can develop unwanted play, unpredictable handling, and accelerated tyre wear.

Function
•  Pivot support: Allows controlled movement of the rear wishbone
•  Vibration isolation: Reduces NVH (noise, vibration, harshness) transmitted into the chassis
•  Load handling: Supports dynamic loads during acceleration, braking, and cornering
•  Alignment stability: Helps maintain correct rear camber, toe, and overall suspension geometry.

A worn or degraded bushing can compromise the vehicle’s balance and rear road feel.

Rear suspension bushings sit at the center of dynamic wheel control. As these bushes age, the rubber compound can:
•  Harden, crack, or split from heat aging
•  Become loose or detached from the metal sleeve
•  Allow excessive play in the suspension link
•  Cause knocking or clunking noises
•  Lead to uneven tyre wear and decreased handling precision.

Worn inner wishbone bushings compromise ride quality and chassis stability. Replacing them with OE Match quality bushings restores correct suspension articulation, improves handling feel, and keeps axle alignment consistent - which is essential for safe and confident driving.

When to replace.  Replace the rear wishbone inner bushing when:
•  You notice rear handling vagueness or looseness
•  There are clunking noises from the rear suspension over bumps
•  Tyre wear is uneven or irregular
•  Rear wheel alignment cannot be held within spec
•  You are performing a suspension overhaul

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

477407181B

The product you are viewing cross references to these numbers