Engines and Components› Camshafts and Valvetrain

SEALED POWER

VALVE STEM SEAL

$17.22

SKU: S03T FP-3945438

Out of Stock
In Stock
Ships by Aug 3
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

VALVE STEM SEAL

MIA's Description

The Sealed Power FP-3945438 is an exhaust valve stem seal designed for specific Cummins engine applications. It features a metal-clad style and is constructed from Viton material, known for its durability and resistance to heat and chemicals. This seal has an inner diameter of 0.4875 inches and an overall height of 0.5600 inches, with a nominal stem diameter of 7 mm.

Fitment

Fitment Guaranteed

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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

BrandSEALED POWER
Part NumberS03T FP-3945438

Videos

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The best cummins valve adjustment method there is!!! watch!
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5.9 CUMMINS MUST HAVE VALVE-TRAIN UPGRADES!
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Here's a Pro Tip to Upgrade Your 12 Valve Cummins - You Won't Believe How Easy It Is!

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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