Product Description
Stop leaks and restore OE sealing with the MAHLE VS50966 valve cover gasket set for 2017–2019 GM 6.6L Duramax L5P. This direct-fit set includes both left and right molded rubber gaskets (with carrier), plus required seals/grommets for a complete top-end refresh.
Fitment
- 2017–2019 Chevrolet Silverado 2500HD/3500HD – 6.6L Duramax L5P
- 2017–2019 GMC Sierra 2500HD/3500HD – 6.6L Duramax L5P
Cross-Reference / Related Mahle Parts on CPP Diesel
- MAHLE 55522 (Head Gasket – Grade A) L5P
- MAHLE 55523 (Head Gasket – Grade B) L5P
- MAHLE 55524 (Head Gasket – Grade C) L5P
- MAHLE C33756 (Coolant Pipe O-Ring) L5P
Notes
Clean mating surfaces thoroughly and inspect covers for warpage. Follow factory torque sequence/specs to prevent over-compression of the gasket.
FAQ
Does VS50966 include both valve cover gaskets?
Yes—left and right gaskets plus required seals/grommets are included.
Will this fit my 2017–2019 L5P?
Yes—VS50966 is listed for 2017–2019 6.6L Duramax L5P applications.
Do I need sealant?
Generally no; use small dabs only where the OEM service manual specifies (joint corners) if applicable.
Specifications for Mahle VS50966
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | VS50966 |
| Includes | Left & right valve cover gaskets; seals/grommets |
| Engine Compatibility | 2017–2019 GM 6.6L Duramax L5P |
| UPC | 639789311078 |
| GTIN | 639789311078 |
| Shipping | Calculated at checkout; optional shipping insurance available |
| Prop 65 | Not listed on product page |
