Fasteners› Engine Fastener Kits

SoCal Diesel

Billet main girdle stud kit for use with main girdle on 2017-2023 Duramax 6.6L L5P engines

$390.00

SKU: S06O L5PGIRDLEMAINSTUDKIT

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The SoCal Diesel L5PGIRDLEMAINSTUDKIT is a main stud kit designed to work with the SoCal Diesel Billet Main Girdle, providing the necessary 1/2" longer main studs for installation.

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

BrandSoCal Diesel
Part NumberS06O L5PGIRDLEMAINSTUDKIT

Videos

Duramax Crankshaft Endplay

Duramax Crankshaft Endplay

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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