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- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
This Rear Anti-Roll Bar, 21MM is a OE MATCH suspension component designed to enhance vehicle stability and handling by reducing body roll during cornering. Engineered specifically for classic Porsche 911 models, this anti-roll bar features a 21mm diameter, providing increased stiffness for improved control and more responsive driving dynamics.
Fits:
- Porsche 911 1987-1989 3.2L G50
Diagram Ref No 10
What This Product Does:
- Reduces body roll during cornering and directional changes
- Improves handling stability and overall vehicle control
- Enhances tyre contact with the road for better grip
- Balances suspension movement between left and right wheels
- Provides increased stiffness for more responsive performance
Symptoms Of Wear Or Failure:
- Excessive body roll when cornering
- Loose or unstable handling feel
- Clunking or knocking noises from the rear suspension
- Uneven tyre wear due to reduced stability
- Reduced cornering confidence and performance
Why Replacement Matters:
- Restores proper handling and stability
- Improves cornering control, especially at higher speeds
- Prevents additional wear on suspension components and tyres
- Eliminates unwanted noise and looseness
- Maintains or enhances original suspension performance characteristics
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133370113
The product you are viewing cross references to these numbers
Anti-Roll Bars (ARB’s) play an important role in a vehicle’s suspension system, helping to reduce body roll by transferring cornering load from one side of a vehicle to the other.
Often mounted to the vehicle’s chassis with rubber bushes, these bushes ensure the bar works as intended. To prevent the anti-roll bar from moving laterally within its mounts when turning, OE manufacturers will either bond the bushes to the bar, add dead-stops to the bar itself, or rely solely on the clamping pressure of the rubber.
But what happens when those bushes wear and need to be replaced? Often anti-roll bars with bonded bushes come as a costly complete assembly, so the alternative is to fit a more cost-effective unbonded polyurethane replacement, like the many we offer.
In most cases, friction from the bush will prevent any side-to-side bar movement. Still, when turning aggressively or cornering at higher speeds, a laterally shifting anti-roll bar decreases the efficiency and effectiveness of the bar, changing the dynamics of your suspension system in unpredictable ways. It also poses the risk of the bar fouling on other areas of the vehicle or suspension system.