Genuine GM Duramax Front & Rear Main Seal Kit 2001–2025 LB7/LLY/LBZ/LMM/LML/L5P
This OEM seal combo kit includes both the front and rear crankshaft main seals used across all 6.6L Duramax engines from 2001–2025. Whether you're rebuilding an engine, replacing a leaking seal, or performing long-term maintenance, these Genuine GM parts ensure proper fitment, superior sealing, and long-lasting durability.
Avoid oil leaks and downtime — this kit is trusted by GM technicians and diesel pros for reliability and performance.
Kit Includes:
(1) Front Main Seal – GM Part #: 97209341 / ACDelco 296-06
(1) Rear Main Seal – GM Part #: 97209342
Fitment Applications:
2001–2025 Silverado/Sierra 2500HD & 3500HD LB7/LLY/LBZ/LMM/LML/L5P
Why Buy This Kit?
- Save time and money bundling both crank seals
- Perfect for complete engine reseal jobs or long block replacements
- OEM durability, oil resistance, and factory sealing integrity
- Backed by GM quality assurance
Installation Tips:
- Clean crankshaft surfaces and inspect for wear
- Use seal drivers or install tools to avoid damaging the seal lips
- Rear seal installation requires transmission removal
- Front seal installs behind the harmonic balancer
SHIPPING IS FREE via USPS Ground Advantage to the lower 48 US states.
Alaska, Hawaii, Puerto Rico, Guam, APO/FPO addresses will need to email for a shipping quote.
CANADA, MEXICO, & ALL INTERNATIONAL BUYERS WILL NEED TO USE THE eBay GSP (GLOBAL SHIPPING PROGRAM)
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