Cross Member & Parts

Lower rear rocker arm bar
1 Required per side, Price is each



Fits:
Porsche 928 1978-1995

The Porsche 928 lower rear arm can now, finally be renovated with our newly produced rocker arm bar.

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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Related, superseded, cross reference or alternative numbers for comparison.

92833108500

The product you are viewing cross references to these numbers

Lower Rear Rocker Arm Bar.
Renew your Porsche 928’s rear suspension performance with the Lower Rear Rocker Arm Bar.
This essential suspension component connects the lower control arms across the rear axle, managing load transfer and maintaining proper wheel alignment under cornering, braking, and acceleration.
Sold Each.
x2 Required Per Car.

Fits:

• Porsche 928 4.5L 1978-82
• Porsche 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86
• Porsche 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91
• Porsche 928GTS 5.4L 1992-95

Diagram Ref No 12

What This Product Does:

• Linking the two sides — It helps distribute load between the left and right lower control arms, improving how the rear axle reacts to cornering or uneven surfaces.
• Maintaining relative geometry — By coupling the motion of the trailing arms, it stabilizes toe and camber changes under load, improving predictability.
  
• Reducing compliance / slack — The bar and its bushings resist unwanted movement in the lower control arms, preventing them from moving independently in undesirable ways.
  
• Improving handling balance — Helps reduce unwanted rear-end movement, contributing to better rear grip and more consistent behavior over bumps or transitions.
  
  

Symptoms / Signs Of Wear Or Failure:

• Clunking, knocking, or banging noises from the rear suspension over bumps or during load shifts
  
• Rear-end looseness or vagueness — the back of the car may feel less planted or predictable
  
• Uneven or accelerated tire wear on the rear, due to geometry variations
  
• Changes in alignment under load, especially during cornering or when the car is unsettled
  
• Loss of consistent rear grip, especially on transitions or during spirited driving
  
  

Why Replacement Matters:

• Restores rear stability and predictability — with rigid, properly bushing-supported linkage, the rear behaves more reliably
  
• Eliminates noise & slack — worn linkage causes audible play; a fresh bar or good bushings cure that
  
• Preserves alignment / geometry under load — prevents misalignment changes mid-corner
  
• Improves overall handling feel — better feedback, confidence, and consistency
  
• Prolongs life of connected parts — less undue stress on arms, mounts, and bushings

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

92833108500

The product you are viewing cross references to these numbers

Rear Axle Cross Member Hexagon-Head Bolt. M10 x 75.


Fits:
Porsche 928 1978-95

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

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

N0104736

The product you are viewing cross references to these numbers

Replacement bush set for lower rocker arm.
2x silent bloc, 1x connecting hose.



Fits:
Porsche 928 1978-95

Click 'Zoom in' for large parts diagram.
Fits to number 12 on diagrams.

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

92833108500

The product you are viewing cross references to these numbers

Replacement Bush Set For Lower Rocker Arm.
Bring back the solid, composed feel of your Porsche 928’s rear suspension with this Replacement Bush Set for Lower Rocker Arm.
Located within the rear rocker arm assembly, these bushings control the articulation of the lower suspension arms, maintaining proper geometry and stability during acceleration, braking, and cornering.
Sold As A Set.
x2 Sets Required Per Car.

Fits:

• Porsche 928 4.5L 1978-82
• Porsche 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86
• Porsche 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91
• Porsche 928GTS 5.4L 1992-95

Fits On To Diagram Ref No 12

What This Product Does:

• Holds the rocker arm in place, connecting it to the chassis or subframe while allowing pivoting motion.
• Allows the rocker mechanism to articulate smoothly, transferring load between trailing arms or controlling geometry changes.
• Helps maintain consistent suspension geometry under load — i.e. when the car is accelerating, braking, or cornering.
  
• Reduces unwanted movement or slack in the linkage, preserving handling precision and stability.

Symptoms Of Worn Or Damaged Bush:

• Clunking or knocking noises from the rear over bumps or during suspension movement
  
• Rear-end vagueness or instability — the car may feel less planted or “loose”
  
• Uneven or strange tire wear on the rear tires, due to misalignment or shifting geometry
  
• Suspicion that the rear changes behavior under load (e.g. under acceleration / braking)
• Reduced handling precision, especially in transitions or fast directional changes
  
  

Why Replacement Matters:

• Restores handling precision — replaces worn, sloppy bushings with tight, controlled support
  
• Eliminates noise & play — stops knocking or slack in the rocker arm linkage
  
• Protects suspension geometry — ensures the rocker arm acts as intended, maintaining correct alignment under load
  
• Prevents further wear — worn bushings transfer stress to surrounding arms, brackets, or linkage elements
  
• Improves confidence & stability — rear responses become more predictable, especially at higher speeds or in aggressive driving

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

92833108500

The product you are viewing cross references to these numbers