Product Description
MAHLE GS33505A reseals a single injector on the 2004.5–2007 GM 6.6L Duramax LLY/LBZ. Built to OE standards, this kit uses durable fluoroelastomer O-rings and includes the required copper sealing washer for a reliable, leak-free repair.
- Sold individually — one kit services 1 injector
- Includes: (3) O-rings + (1) injector tip/copper washer
- O-ring material: Fluoroelastomer (FKM)
Fitment
- 2004.5–2007 Chevrolet Silverado 2500HD/3500HD, 6.6L Duramax LLY & LBZ
- 2004.5–2007 GMC Sierra 2500HD/3500HD, 6.6L Duramax LLY & LBZ
Cross Reference (component equivalents)
- GM: 97327722 (gasket/washer set), 94013303 (injector body O-ring)
- Bosch: F00RJ01086 (copper washer), F00E200099 (O-rings)
What’s Included
(3) O-rings, (1) injector copper sealing washer. Order 8 kits to service all cylinders.
FAQ
Does this kit fit LLY and LBZ?
Yes — it’s designed for 2004.5–2007 LLY/LBZ Duramax applications.
How many do I need?
One kit per injector (8 kits for a full set).
What materials are the O-rings?
High-temp fluoroelastomer for diesel environments.
Is the copper tip washer included?
Yes — the kit includes the injector sealing washer.
Any installation tips?
Clean the bore and injector, lightly oil O-rings, and replace the copper washer each time the injector is removed. Verify vehicle fitment by year/engine code.
