ProMaxx CHR621N Replacement Cylinder Head - 07.5-18 Dodge
ProMaxx
Replacement Cylinder Head
The ProMaxx CHR621N Replacement Cylinder Head for your 2007.5-2018 Dodge 6.7L Cummins is designed as replacement cylinder heads with thicker castings in crack prone areas. Sold as a complete cylinder head with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install.
ProMaxx Replacement Cylinder Head Features:
- New Casting
- Improved Casting In "Problem Areas"
- No Core Charge!
- Fits Casting Numbers: #3977225 - #3977221
- For more information on ProMaxx Performance call us atĀ 1-866-318-0380.
Application Note:These cylinder heads are casting specific, not model year specific. Please confirm the casting number on the head you currently have to confirm fitment.
SKU: CHR621N
Product Information
Product Information
Shipping & Returns
Shipping & Returns

ProMaxx CHR621N Replacement Cylinder Head - 07.5-18 Dodge
ProMaxx CHR621N Replacement Cylinder Head - 07.5-18 Dodge
ProMaxx
Replacement Cylinder Head
The ProMaxx CHR621N Replacement Cylinder Head for your 2007.5-2018 Dodge 6.7L Cummins is designed as replacement cylinder heads with thicker castings in crack prone areas. Sold as a complete cylinder head with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install.
ProMaxx Replacement Cylinder Head Features:
- New Casting
- Improved Casting In "Problem Areas"
- No Core Charge!
- Fits Casting Numbers: #3977225 - #3977221
- For more information on ProMaxx Performance call us atĀ 1-866-318-0380.
Application Note:These cylinder heads are casting specific, not model year specific. Please confirm the casting number on the head you currently have to confirm fitment.
SKU: CHR621N
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
ProMaxx
Replacement Cylinder Head
The ProMaxx CHR621N Replacement Cylinder Head for your 2007.5-2018 Dodge 6.7L Cummins is designed as replacement cylinder heads with thicker castings in crack prone areas. Sold as a complete cylinder head with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install.
ProMaxx Replacement Cylinder Head Features:
- New Casting
- Improved Casting In "Problem Areas"
- No Core Charge!
- Fits Casting Numbers: #3977225 - #3977221
- For more information on ProMaxx Performance call us atĀ 1-866-318-0380.
Application Note:These cylinder heads are casting specific, not model year specific. Please confirm the casting number on the head you currently have to confirm fitment.
SKU: CHR621N





















