Shop with Blessed Performance for the Wagler Billet Main Caps for Cummins diesel.
Highlights:
- WCP Billet Main Caps are designed and machined in house
- Does not distort when torquing down main studs
- Adds strength to the bottom end
- Can be used with or without the WCP Girdle
- For extra strength add the WCP Street Girdle
- Made in the USA
- Must be line bored