Engines and Components› Pistons and Piston Rings

JE Pistons

GROOVE LOCK SPACER 4.000 - 4.037

$23.96

SKU: J001 GLS25

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Non-Returnable Item
INSTALL DIFFICULTY
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Easy — 1–2 hours

Description

The Wiseco GLS25 is a groove lock spacer designed for internal combustion engines. This automotive component fits bore diameters ranging from 4.000 to 4.037 inches and features a radial wall of 0.160 inches. It is manufactured in the U.S. by Wiseco, a company with over 80 years of experience in producing high-performance forged pistons.

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.

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Specifications

BrandJE Pistons
Part NumberJ001 GLS25

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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