Engines and Components› Cylinder Heads and Components

Gator Fasteners

Gator Fasteners Heavy Duty Main Stud Kit for Cummins 3.9L 4BT Diesel

$224.99

SKU: G05P MSK394BT

In Stock
In Stock
Ships by Jun 14
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Gator Fasteners Heavy Duty Main Stud Kit is designed to secure the bottom end of your Cummins 3.9L 4BT engine. These fasteners offer higher strength than factory bolts to prevent stretching during operation. Made from steel with a black powdercoat finish, this kit is suitable for stock to built 5.9L Cummins engines.

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

BrandGator Fasteners
Part NumberG05P MSK394BT

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.

View Full Return Policy