MAHLE MS-2218HX H-SERIES MAIN BEARINGS (STD + .001) FOR 01–16 GM DURAMAX

Product Description

Dial in reliable oil film for your LB7–LML with the MAHLE MS-2218HX H-Series Main Bearings (standard size with +.001" extra clearance). Built on Clevite’s TM-77 tri-metal construction with a hardened steel back, enlarged chamfers, medium eccentricity, and high crush, HX bearings are the go-to choice when performance, towing, or high RPM demand additional clearance and stability. Requires thrust washer set TW-610S (sold separately).

Mahle MS-2218HX main bearings Duramax, H-Series +.001 oil clearance bearings, 6.6L Duramax LB7 LLY LBZ LMM LML main bearing set, Clevite TM-77 tri-metal HX, Duramax performance bearings, standard size extra clearance

Fitment

• 2001–2016 GM 6.6L Duramax: LB7, LLY, LBZ, LMM, LML (Silverado/Sierra 2500HD/3500HD; select Express/Savana; Kodiak/TopKick C4500/C5500)

Cross-Reference / Alternatives (Mahle only)

• Mahle MS-2218H (STD): MS-2218H
• Mahle MS-2218H-.25MM (0.25 mm undersize): MS-2218H-.25MM
• Mahle MS-2218H-.026MM (.026 mm undersize): MS-2218H-.026MM
• Mahle MS-2218P (STD, P-Series): MS-2218P

Recommended Mahle Companion Parts

• Mahle TW-610S Thrust Washer Set: TW-610S
• Mahle CB-1805HX H-Series Rod Bearings (STD + .001): CB-1805HX
• Mahle SH-1999S Camshaft Bearing Set (01–13): SH-1999S

What’s Included

• Complete main bearing set for one engine (standard journals with +.001" extra oil clearance). Thrust washers not included.

FAQ

Will these fit my LB7/LLY/LBZ/LMM/LML?
Yes—coverage is 2001–2016 6.6L Duramax across LB7 through LML.

What does “HX” mean?
HX indicates standard journal size with approximately +.001" additional oil clearance for builds that need more film thickness at load/RPM.

Do I need a thrust washer set?
Yes—pair with Mahle TW-610S thrust washers for a complete install.

Street use okay?
Absolutely. H-Series originated in racing but are commonly used in street/strip and heavy-towing Duramax builds when clearances are set correctly.

Specifications for Mahle MS-2218HX