Product Description
MAHLE OS32284 oil pan gasket delivers an OE-grade seal for 2001–2010 GM Duramax 6.6L engines (LB7, LLY, LBZ, and LMM). Designed to resist thermal cycling, vibration, and oil exposure, this gasket maintains factory oil-pan alignment and leak prevention even under high load and towing conditions. It’s a direct-fit replacement engineered to meet or exceed GM sealing standards.
Fitment
- 2001–2004 Chevrolet Silverado / GMC Sierra 2500HD, 3500 – 6.6L Duramax LB7
- 2004.5–2005 Chevrolet Silverado / GMC Sierra – 6.6L Duramax LLY
- 2006–2007 Chevrolet Silverado / GMC Sierra – 6.6L Duramax LBZ
- 2007.5–2010 Chevrolet Silverado / GMC Sierra – 6.6L Duramax LMM
- Fits upper/lower oil pan mating surface (direct replacement for GM 97188720 and equivalents).
Cross-Reference / OE Numbers
- GM OE: 97188720, 97217601
- ACDelco: 12612350
- Fel-Pro: OS30715R
- Mahle: OS32284 (this listing)
Recommended MAHLE Pairings (Internal Links)
- MAHLE CS32284 Lower Conversion Gasket Set – 01–10 6.6L Duramax
- MAHLE HS54580 Head Gasket Set – 06–10 Duramax LBZ/LMM
- MAHLE VS50369 Valve Cover Gasket Set – 01–10 LB7/LLY/LBZ/LMM
- MAHLE GS33533 Exhaust Manifold Gasket Set – 01–10 Duramax
Why MAHLE
- OE-grade rubber-coated metal (RCM) construction for long-term sealing
- Designed to maintain clamp load and resist oil seepage
- Direct-fit gasket with precise bolt-hole and pan-rail alignment
Installation Notes
- Inspect pan and block for warpage or debris before installation
- Tighten bolts in criss-cross pattern to GM torque specs
- Do not use additional RTV unless specified by service manual
FAQ
Will OS32284 fit both early LB7 and later LMM engines?
Yes — OS32284 covers all 2001–2010 Duramax 6.6L engines including LB7, LLY, LBZ, and LMM platforms.
Does the gasket require RTV sealant?
No — MAHLE’s RCM material seals dry. Only apply small RTV dabs at timing cover or rear main junctions if required by OE spec.
What’s the GTIN/UPC for this gasket?
UPC/GTIN-12: 027067766457.
Is this gasket reusable?
No — always replace with a new gasket after oil pan removal to maintain proper compression and sealing.
Specifications for Mahle OS32284
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | OS32284 |
| UPC / GTIN | 027067766457 |
| Shipping Info | Ships from CPP Diesel; shipping calculated at checkout. Lightweight gasket envelope packaging (approx. 1 lb). |
| 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. |
