Original Porsche Part Genuine Porsche part 91450153211

Porsche 914 - 1970 to 1976

Diagram ref no 1 (section of), 4, 5 and 9

Rear Anti-Roll Bar Installation Hardware Kit
This Rear Anti-Roll Bar Installation (Hardware) Kit for the Porsche 914 includes every essential component required to correctly mount, secure and reinforce the rear anti-roll (sway) bar system. Designed for restoration, upgrades and repairs, this kit ensures the rear suspension performs as Porsche intended—improving stability, cornering control and chassis response

Fits:

• Porsche 914 (1970-1974)

Diagram Ref No: 28

The kit includes:
2 x 91450125910/1 – Mounting Bracket
2 x 91450153271/1 – Reinforcement Plates
2 x 90133379303/1 – Bushings
2 x 90133375301/1 Brackets
4 x 90134378200/1 – Bushings
4 x 90007508704 – Bolts
4 x 90002701501 – Washers

Each component is manufactured to precision tolerances and performance-fit standards—ideal for replacing aged hardware, upgrading worn pieces or installing a rear anti-roll bar on models that did not originally have one fitted.

What the Rear Anti-Roll Bar Hardware Kit Does

The anti-roll bar system works to stabilise the rear of the Porsche 914 by reducing body roll during cornering. This kit ensures the correct mounting and reinforcement of the bar, allowing it to function effectively.

Key Functions

• Provides secure mounting points for the sway bar
• Reinforces the rear suspension console area
• Maintains proper bar geometry and alignment
• Reduces rear-end body roll under lateral load
• Improves cornering balance, stability and driver confidence
• Ensures correct bushing and bracket fitment for long-term reliability

A properly mounted rear anti-roll bar transforms the handling of a Porsche 914—especially when combined with refreshed suspension components.

The Porsche 914’s rear suspension is known for stress on mounting hardware, especially on cars used for performance driving, autocross or spirited road use. Decades of use take a toll on original parts.

Common Failure Causes

• Aged bushings that crack, harden or collapse
  
• Corrosion on brackets, bolts and washers
  
• Metal fatigue from continuous lateral forces
  
• Previous incorrect installations leading to weakened mounting points
  
• Reinforcement plates separating due to age or rust
  
• Chassis flex stressing original mounting areas

Once hardware wears or fails, the sway bar becomes ineffective—or worse, may detach entirely.

Why This Kit Should Be Replaced or Installed

Installing a fresh anti-roll bar hardware kit restores the Porsche 914’s rear-end stability and prevents further suspension damage.

Benefits of Installing This New Kit

• Ensures correct mounting and geometry of the sway bar
  
• Improves handling, cornering and overall stability
  
• Eliminates creaking, clunking or loose-suspension symptoms
  
• Reinforces structural areas prone to fatigue
• Provides a fresh set of all required brackets, bolts and bushings
• Ideal for restoration or upgrading non-equipped cars