Product Description
MAHLE 67775 timing cover seal provides an OE-quality seal between the timing cover and engine block on 2001–2016 GM Duramax 6.6L diesel engines. Designed to prevent oil leaks and maintain crankcase sealing integrity, this precision-molded rubber seal ensures long-term reliability for stock and performance builds alike.
Fitment
- 2001–2004 Chevrolet Silverado / GMC Sierra 2500HD–3500HD 6.6L Duramax LB7
- 2004.5–2005 Chevrolet Silverado / GMC Sierra 2500HD–3500HD 6.6L Duramax LLY
- 2006–2007 Chevrolet Silverado / GMC Sierra 2500HD–3500HD 6.6L Duramax LBZ
- 2007.5–2010 Chevrolet Silverado / GMC Sierra 2500HD–3500HD 6.6L Duramax LMM
- 2011–2016 Chevrolet Silverado / GMC Sierra 2500HD–3500HD 6.6L Duramax LML
- Does not include front crank seal (sold separately).
What’s Included
- (1) Timing cover seal — installs between timing cover and engine block
Cross-Reference / OE Numbers
- GM OE: 97229061
- ACDelco: 89017849
- Mahle: 67775
Recommended MAHLE Pairings (Internal Links)
- MAHLE CS54657 Lower Engine Gasket Set – 01–16 Duramax 6.6L
- MAHLE HS54657 Head Gasket Set – 01–16 Duramax 6.6L
- MAHLE VS50528 Valve Cover Gasket Set – 01–16 Duramax 6.6L
- MAHLE GS33684 Rear Main Seal – 01–16 Duramax 6.6L
Why MAHLE
- Precision-engineered elastomer sealing lip for long-term oil resistance
- OE-grade fit and finish eliminates oil seepage and premature wear
- Trusted by engine builders and fleets for consistent quality
Installation Notes
- Inspect timing cover and block surfaces for scratches or debris
- Lightly lubricate seal prior to installation
- Torque bolts in sequence to factory specification
FAQ
Is this the front crankshaft seal?
No—MAHLE 67775 seals the timing cover to the block. The front crank seal is separate (see MAHLE GS33684 for rear seal or corresponding front crankshaft seal).
Will this fit all Duramax generations up to 2016?
Yes—covers LB7, LLY, LBZ, LMM, and LML engines from 2001 through 2016.
Does it include hardware or RTV?
No hardware or RTV included. Use OE-approved anaerobic or RTV sealant as required during reassembly.
What’s the UPC/GTIN for this part?
GTIN/UPC: 027067470256.
Specifications for Mahle 67775
| Attribute | Value |
|---|---|
| Brand | MAHLE Original |
| Part Number | 67775 |
| UPC / GTIN | 027067470256 |
| Shipping Info | Ships from CPP Diesel; shipping calculated at checkout. Compact seal (approx. 4" × 4" × 0.5" package). |
| Country of Origin | Not specified |
| Prop 65 | This product can expose you to chemicals including lead and lead compounds, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov. |
