This black anodized billet aluminum plug seals the 1.1 in. coolant bore in the Duramax engine cover. A high-temperature silicone O-ring is included.
Duramax builders closing off an unused coolant port.
| Fits | Duramax engine cover, 1.1 in. bore |
|---|---|
| Seal | High-temperature silicone O-ring |
| Finish | Black anodized |
| Shipping weight / box | 1 lb · 4 × 5 × 4 in |
Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.
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