Engines and Components› Harmonic Balancers

NATIONAL

OIL SEAL

$37.69

SKU: N038 88187

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The National 88187 Harmonic Balancer Sleeve is designed to prevent timing cover seal leaks and extend component life. Made from nickel plated formed steel, this sleeve provides durability and corrosion resistance. This harmonic balancer sleeve is crafted to streamline the installation process, effectively extending the life of your harmonic balancer and restoring the seal's integrity.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

BrandNATIONAL
Part NumberN038 88187

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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