Description
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
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