Gaskets and Seals› Engine Gaskets and Seals
Permatex
Optimum Red RTV 3 Oz Silicone
SKU: P018 27038
Beginner — under 30 min
Description
It can be used in place of pre-cut gaskets and is ideal for high-temperature silicone applications. The product ranges up to 750°F (399°C) intermittently and is suitable for exhaust manifolds, headers, turbochargers, and slip-fit exhaust parts.
Fitment
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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Permatex |
| Part Number | P018 27038 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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