Engines and Components› Camshafts and Valvetrain
COMP Cams
COMP Cams Valve Seals 3/8 Viton Metal Body
SKU: C007 521-16
Easy — 1–2 hours
Description
Part #: 521-16
3/8 X .500 Viton Metal Body Seal .540 OD
Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 521 seals have a .545" OD and fit applications with 3/8" valves and .500" OD guides.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
Designed for performance applications, these seals have a .545" OD and are intended for use with 3/8" valve stems and .500" OD guides.
Fitment
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Specifications
| Brand | COMP Cams |
| Part Number | C007 521-16 |
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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