Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Gaskets and Seals› Gasket Material
Permatex
Hi-Temp RTV Silicone Red 11oz Cartridge
SKU: P018 81409
Easy — 1–2 hours
Overview
Formulated from acetoxy silicone rubber, it maintains maximum performance in continuous temperatures up to 600°F and up to 650°F intermittently. Its recommended uses include valve covers, oil pans, timing covers, water pumps, and thermostat housings. The gasket maker is non-flammable and non-toxic, offering superior adhesion and flexibility while resisting auto and shop fluids.
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Permatex |
| Part Number | P018 81409 |
Videos
Gasket Maker Overview - Permatex Tech Tip Series
Permatex High Temp Red RTV, Trial and Review.
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Permatex Water Pump Thermostat Housing Gasket Maker Silicone RTV | Product Review
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Returns & Fitment
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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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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