Crankcase through bolt washer. Porsche 911 1965-89 / 914-6 › 90110116103

OE Match crankcase through bolt washer for Porsche 911 1965–89 and 914-6 applications. Intended for the crankcase fastening assembly during repair or engine rebuilding.

Fits

Porsche 911 1965-89
Porsche 914-6 1970-76

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


Diagram ref no: 23

What This Product Does

The washer forms part of the hardware used to fasten the crankcase assembly. Correctly matched washers and associated fasteners support the intended assembly fit; a washer should not be treated as a substitute for diagnosing damaged threads, worn hardware or sealing faults.

Functions

• Provides the washer component within the crankcase through bolt assembly.
• Supports replacement of missing or damaged crankcase fastening hardware during rebuilding.
  
  

Technical Details

• Internally documented washer reference: 90110116102.
• Additional supplied references: 90110116103 and 90110116101.

Symptoms of Fault

Visible corrosion, damaged fastening hardware or persistent seepage around a clamped joint warrant inspection. These findings do not establish that the washer alone is responsible.

Why Replacement Matters

Engine dismantling provides an opportunity to assess washers alongside bolts, nuts, threads and adjoining seals. Renew damaged or missing components as required, matching the replacement to the particular engine assembly rather than relying on appearance alone.

FAQs

Can existing fastening hardware be reused?
Reuse depends on the component specification and its condition. Check the applicable engine workshop instructions before reassembly.

What should be confirmed before choosing this washer?
Compare the original reference, exact engine application and required quantity with the relevant assembly information.