AutoParts Store
Shopper Approved - 4.8 StarsTrust Guard Secure
SHOP
PRODUCTSBRANDSPARTS REQUESTDEALERS
SUPPORT
CONTACTORDER STATUSFAQSHIPPING POLICYRETURN POLICYPRIVACY POLICY
COMPANY
ABOUT USNEWSGALLERYREADERS RIDESRR TERMS OF USESITE MAP

Copyright © 2026 KT Performance. All Rights Reserved. Powered by  Web Shop Manager.

kt-performance
kt-performance

Brands

Parts Request

Dealers

About

Contact

1-855-587-3736

MY CART

YOUR CART IS EMPTY

Browse parts and accessories to get started.

Brands
Parts Request
Dealers
About
Contact
HOME / PRODUCT / Gator Fasteners Heavy Duty Main Stud Kit for Chevy/GMC (2001-05) 6.6L LB7/LLY & (17-25) L5P Duramax Diesel
SaleGator Fasteners Heavy Duty Main Stud Kit for Chevy/GMC (2001-05) 6.6L LB7/LLY & (17-25) L5P Duramax Diesel

Gator Fasteners Heavy Duty Main Stud Kit for Chevy/GMC (2001-05) 6.6L LB7/LLY & (17-25) L5P Duramax Diesel

SKU: JDZHMSK667Y
• Heavy-Duty Main Stud Kit – Specifically designed for 2001-2005 LB7 & LLY and 2017-2025 L5P 6.6L Duramax Diesel engines. • Much Stronger Than 8740 Chromoly Steel – Made from HD220 material, which far exceeds the strength of 8740 used by competitors. • Superior Clamping Force – Reinforces the main bearing caps to handle increased power and boost levels. • Rolled Threads After Heat Treating – Enhances strength, prevents thread failure, and improves fatigue resistance. • Corrosion & Wear Resistant – Designed to withstand harsh operating conditions for long-lasting performance. • Includes High-Quality Nuts & Washers – Provides a complete installation kit for a secure and precise fit. • Ideal for High-Performance & Heavy-Duty Applications – Perfect for towing, racing, and extreme off-road use.
$279.99$350.00
Loading options…

Description

Upgrade Your LB7, LLY & L5P Duramax for Maximum Strength


The Gator Fasteners Heavy Duty Main Stud Kit (MSK667Y) is the ultimate upgrade for 2001-2005 6.6L LB7 & LLY / 2017-2025 L5P Duramax Diesel engines, providing superior clamping force and durability. Whether you're pushing high boost, towing heavy loads, or running a high-performance build, these main studs will keep your bottom end secure.


Unlike factory bolts that can stretch and weaken under extreme conditions, Gator Fasteners HD220 main studs are designed to reinforce your engine block and ensure long-term reliability.


When it comes to durability and performance, "Nothing Bites Like Gator!"

Tell a Friend

Your Name:
Product:Gator Fasteners Heavy Duty Main Stud Kit for Chevy/GMC (2001-05) 6.6L LB7/LLY & (17-25) L5P Duramax Diesel

200 characters remaining