HomeEngine > Gaskets and Sealing SystemsElring 099.643 Engine Cylinder Liner O-Ring
Part #: 099.643

Elring 099.643 Engine Cylinder Liner O-Ring

4 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Porsche, 911
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Reliable Copper Engine Cylinder Liner O-Ring for Porsche 911

The Elring 099.643 engine cylinder liner O-ring is designed specifically for Porsche 911 models, providing a precise seal to maintain engine integrity. Crafted from durable copper, this O-ring ensures consistent performance under high temperatures and pressures.

  • Material: High-quality copper for excellent heat resistance
  • Inside Diameter: 97.2 mm for exact fitment
  • Outside Diameter: 108.0 mm ensuring proper sealing surface
  • Thickness: 0.5 mm for optimal compression and sealing
  • Compatible with Porsche 911 engine cylinder liners

Technical Details and Material Benefits

The Elring 099.643 O-ring is manufactured from copper, a material known for its thermal conductivity and resistance to deformation under engine operating conditions. The precise dimensions—97.2 mm inside diameter, 108.0 mm outside diameter, and 0.5 mm thickness—are engineered to match the cylinder liner specifications of Porsche 911 engines. This ensures a secure seal that prevents coolant and oil leaks, maintaining engine efficiency and longevity.

Application and Common Issues Addressed

  • Prevents coolant leakage around the engine cylinder liner
  • Eliminates oil seepage that can cause engine contamination
  • Maintains compression integrity within the cylinder liner
  • Reduces risk of engine overheating due to seal failure
  • Supports engine rebuilds and maintenance for Porsche 911 models

Installation Notes and Tips

When installing the Elring 099.643 O-ring, ensure the cylinder liner surface is clean and free of debris. Proper lubrication of the O-ring with engine-compatible grease can facilitate installation and prevent damage. Verify the O-ring dimensions against the cylinder liner to confirm fitment before assembly. Avoid over-tightening components to maintain the integrity of the copper seal.

Quality Assurance and Warranty

Elring manufactures the 099.643 engine cylinder liner O-ring to meet stringent automotive standards, ensuring reliable sealing performance. While specific warranty details are not provided, Elring products are generally backed by quality control processes that support durability and fitment accuracy for Porsche 911 engines.

BrandElring
Part Number099.643
MaterialCopper
Inside Diameter97.2
Outside Diameter108.0
Thickness [Mm]0.5

This part fits 4 vehicles. Search below:

YearMakeModelSubmodelBody TypeDrive TypeLitersCylindersPositionNotes
1977Porsche9112.7LH6N/AThickness: 0.5mm; Inner Diameter: 97.2mm; Outer Diameter: 108mm
1976Porsche9112.7LH6N/AThickness: 0.5mm; Inner Diameter: 97.2mm; Outer Diameter: 108mm
1975Porsche9112.7LH6N/AThickness: 0.5mm; Inner Diameter: 97.2mm; Outer Diameter: 108mm
1974Porsche911BaseCoupeRWD2.7LH6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

911.104.192.06

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.