do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Size: 16mm
This Stabilizer bar bushing is designed to replace the original 16 mm anti-roll bar mount bush used in Porsche 911 models (1974–1977) models. It secures the stabilizer bar to the chassis, allowing proper flex while isolating vibration and lateral movement.
Fits:
Porsche 911 1974 - 1977
Diagram ref no 23
• Quantity: Set of 4 pieces
• Inner Diameter: 16 mm (designed for 16 mm sway bar)
• Function: Supports and isolates the anti-roll bar from the chassis while allowing controlled movement
• Position: Front suspension — stabilizer bar mounting locations (two per side)
• Symptoms of wear: Squeaking, knocking, excessive body roll, looseness, or sway bar movement
• Benefits: OE-spec material hardness and fit, quieter ride, reduced vibration, restored bar performance, and long-term durability
• Installation: Fit each bushing over the stabilizer bar, seat securely in the bracket cradle, and fasten using the correct factory clamps or straps
Over time, stabilizer (sway) bar bushings are subjected to continuous twisting, compression, and exposure to road debris, heat, and oils. The rubber material gradually hardens, cracks, or deforms, reducing its ability to cushion the stabilizer bar and maintain tension. When this occurs, the bar can move or rattle inside its mounts, leading to reduced cornering stability and increased noise during driving.
Replace this set when:
• You hear clunking or squeaking noises from the front suspension
• The car feels less stable in corners or exhibits excessive body roll
• The bushings show visible cracks, tearing, or softness Performing front suspension repairs or sway bar service
Installing a new set of 4 bushings restores the proper preload and isolation in the stabilizer system — reducing roll, eliminating noise, and bringing back Porsche’s signature steering precision and balance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134379202
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
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.