Stock 60 lb springs let valves float as boost and rpm climb. Hamilton Cams conical beehive springs add seat pressure and stability for moderate cams and stock size valves. It fits 1989-1998 Dodge Ram with the 5.9L 12V Cummins. 12 valve Cummins.

Seat pressure: 155 lb at 1.880 inch, rated to 4,500 rpm or 65 psi of boost or drive pressure. No core charge applies to this part.

Key Features & Benefits

• Includes: Retainers and locks. Optional locks add .075 inch installed height.
• Limits: Past 4,500 rpm, over .360 inch lift or with larger valves, Hamilton recommends its dual spring kit.

Technical Specifications

• Manufacturer/Brand: Hamilton Cams
• Part Number/SKU: 07-S-001 (hca07-S-001)
• Product Type: Beehive Valve Springs
• Truck Compatibility: 1989-1998 Dodge Ram with the 5.9L 12V Cummins. 12 valve Cummins
• Engine Platform: 5.9L 12V Cummins
• Core Requirement: No core required

Vehicle Fitment & Technical Installation Notes

Fits 1989-1998 Dodge Ram with the 5.9L 12V Cummins. 12 valve Cummins.

Installation Tip: Step up to the dual springs if you plan to run over 4,500 rpm.