MAHLE 55524 Cylinder Head Gasket (Grade C) (2017-2024 6.6L Duramax)
Fits: Chevrolet • GMC
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the MAHLE 55524 Cylinder Head Gasket (Grade C) (2017-2024 6.6L Duramax) you will earn 111 DIESEL DOLLARS in your SDS Fuel Tank!
The MAHLE 55524 Cylinder Head Gasket (Grade C) replaces a blown-out head gasket on the 6.6L Duramax L5P in 2017-2024 Chevrolet Silverado and GMC Sierra 2500HD-3500HD trucks. It is a multi-layered steel gasket, Grade C, 1.24mm - 1.36mm thick. You buy it when a head gasket has failed or the heads are coming off and the right grade has to go back on.
Fitment
Listed for the 6.6L Duramax L5P in 2017-2024 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD trucks. The part description names 2017-2023 L5P engines, so if you own a 2024 truck, verify fitment by VIN before you order. The listing does not cover 2025 and newer trucks. This is one specific grade, Grade C; if you are not sure that is the grade your engine needs, call the shop before you order. More L5P parts are in our Duramax section.
Why this part
A head gasket job on the L5P means pulling the head, so the gasket that goes back on has to be right the first time. The 55524 is a direct-fit, multi-layered steel head gasket in Grade C with a thickness of 1.24mm - 1.36mm. MAHLE uses quality materials in its construction to provide a long service life and a leak-proof seal, and it is quality tested. It is listed as torque to yield, so follow the factory service procedure for head bolt torque when you install it.
What you get
One MAHLE 55524 cylinder head gasket in Grade C. If you are doing both heads, call us to confirm the quantity before you order. MAHLE lists these features:
- Quality Tested
- Direct-fit Replacement
- Multi-Layered Steel Head Gasket
Specifications
- Grade C
- 1.24mm - 1.36mm Thickness
- Material: Multi-Layered Steel
- Torque to Yield: Yes
About MAHLE
MAHLE opened in 1920 as a small engine shop in Stuttgart, Germany, and its first reputation was pistons. Its diesel aftermarket range covers head gaskets, head sets and complete gasket sets along with pistons and bearings, the same lines diesel shops have used for years to put engines back together the way they were built.
Frequently asked questions
What does Grade C mean on this gasket?
Grade C is the version of the 55524 with a thickness of 1.24mm - 1.36mm. If you are not sure which grade your engine needs, call the shop before you order.
Is this a multi-layer steel gasket?
Yes. The 55524 is a multi-layered steel head gasket.
Will it fit a 2024 L5P?
The listing covers 2017-2024, but the part description names 2017-2023 engines. On a 2024 truck, verify fitment by VIN or call us first.
Questions on fitment? Call the shop at the number in the header. We install everything we sell.
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the MAHLE 55524 Cylinder Head Gasket (Grade C) (2017-2024 6.6L Duramax) you will earn 111 DIESEL DOLLARS in your SDS Fuel Tank!