This Victor Reinz Thermostat O-Ring is a direct-fit replacement for Porsche 928 applications from 1978–1987 listed in the fitment table below. This cooling-system seal helps keep coolant contained at the joint, where heat cycles and pressure changes can expose worn or flattened sealing material.
Victor Reinz has been a trusted name in engine sealing technology for decades, supplying gaskets, seals, and sealing systems used by European vehicle manufacturers including Porsche. As part of the Dana Incorporated group, Victor Reinz products are developed to meet strict OEM specifications for material performance, sealing integrity, and long-term durability.
Technical Details
- Manufacturer part number: 40-76916-00
- Brand: Victor Reinz
- Type: Thermostat O-Ring
- Application range: Porsche 928 (1978–1987)
- Function: Restores the sealing surface at the specified joint
Fitment & Compatibility
Confirm your application in the fitment table below, especially if your Porsche has option-specific or engine-specific sealing requirements. PMB Performance can also help verify fitment by VIN, backed by over 20 years of Porsche parts experience.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1978 | Porsche | 928 | ||
| 1979 | Porsche | 928 | ||
| 1980 | Porsche | 928 | ||
| 1981 | Porsche | 928 | ||
| 1982 | Porsche | 928 | ||
| 1983 | Porsche | 928 | ||
| 1984 | Porsche | 928 | ||
| 1985 | Porsche | 928 | ||
| 1986 | Porsche | 928 | ||
| 1987 | Porsche | 928 |