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Your Vehicle  //  Porsche  //  356 (1950-1965)  //  356A 1955-59
Porsche356 (1950-1965)356A 1955-59Chassis / BodyworkBumpers Rear

Bumper Overider

Bumper Overider

DISPLAYING 1 to 2 (of 2 products)
Bumper over-rider bar bolt. Porsche 356A 1955-59 - 64450503102, 64450503202
1
Bumper over-rider bar bolt. Porsche 356A 1955-59
SMC000012
Product Information
Product Information

This OE Match bumper over-rider bar bolt suits the Porsche 356A 1955–59. The stud is manufactured from 303 stainless steel for the tube attachment within the chromed bumper guard.

Fits

  • Porsche 356 A (1955-1959)

Check fitment for your specific vehicle (model, year, engine) before ordering.

What This Product Does

The stud provides a threaded fixing at the connection between the over-rider tube and bumper guard. It is replacement fastening hardware, rather than a complete guard or tube assembly.

Functions

  • Provides the threaded attachment for the over-rider tube.
  • Replaces a missing or damaged stud during bumper repairs or restoration.

Technical Details

  • Material: grade 303 stainless steel.
  • Fastener type: stud bolt.
  • Installation location: inside the chromed bumper guard, at the over-rider tube connection.
  • Sold individually.

Symptoms of Fault

  • Corrosion affecting the existing fastener.
  • Threads that have seized or become stripped.
  • Absent or damaged hardware preventing the tube from fastening securely.

Why Replacement Matters

Renewing an unserviceable stud restores the fixing needed when reassembling the over-rider tube and guard. Inspect the mating threads and surrounding attachment points as well, since replacing the bolt alone will not correct damage elsewhere in the connection.

FAQs

Where is this bolt installed?
It fits within the chromed guard at the over-rider tube attachment.

What material is specified?
The stud uses grade 303 stainless steel.

Is this a complete bumper fitting kit?
No. The product is an individual stud bolt, not a complete mounting kit or bumper assembly.



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Related, superseded, cross reference or alternative numbers for comparison.

SMC000012
64450503102
64450503202

The product you are viewing cross references to these numbers
Grommet rear overrider tube. Porsche 356 Pre-A / 356A - 64450529101 - 64450529101
2
Grommet rear overrider tube. Porsche 356 Pre-A / 356A
64450529101/1
Product Information
Product Information
Grommet rear overrider tube. 
Sold each - 2 required per car

Fits:
Porsche 356 Pre-A - 1950 to 1955
Porsche 356A - 1955 to 1959

Replica rubber grommet for inner ends of rear bumper overrider tubes for Porsche 356 and Porsche 356 A.
Improved formulation and finish 

Diagram ref no 9

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

64450529101
64450529101

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
Also found on these pages
About Bumper Overider

Add both style and protection to your Porsche with rear bumper overriders from Design911. These components are designed to safeguard your bumper from light impacts and scratches while maintaining the car’s authentic appearance. Commonly featured on classic Porsche models, overriders were originally fitted as stylish protective accessories made from chrome, stainless steel, carbon fibre or rubber. Today, they remain a vital restoration and aesthetic upgrade for vintage and modern Porsche vehicles alike.
At Design911, we offer OEM-quality and reproduction rear bumper overriders that ensure perfect fitment, long-lasting protection, and a true factory finish — whether you’re restoring a classic 911 or maintaining your everyday Porsche.

Chrome Rear Overriders
Polished chrome overriders designed to replicate Porsche’s original vintage look while offering superior impact protection and shine. Perfect for concours restorations.

Rubber Rear Bumper Guards
Flexible rubber overriders that protect your Porsche’s rear bumper from parking scuffs and minor collisions while retaining an understated factory style.

Classic Porsche Rear Overriders
Authentic reproduction overriders for classic models such as the 356, 911 Classic, and 912. Maintain original design, fit, and finish with heritage-correct materials.

Modern Porsche Overrider Kits
OEM and aftermarket bumper guard kits tailored for newer Porsche models, combining contemporary styling with durable construction.

Mounting Brackets & Fixing Hardware
All necessary brackets, screws, and hardware to ensure a secure installation of your rear overriders with a perfect bumper alignment.

Custom & Lightweight Overriders
Lightweight and bespoke overriders crafted for motorsport or aesthetic applications — combining modern materials with Porsche’s timeless styling.

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