Hamilton Cams 1989-1998 Dodge/Ram 2500/3500 5.9L Cummins 12V Performance Beehive Valve Springs (155 lb)
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Keep the valves on the 1989–1998 5.9L 12-valve Cummins under control with Hamilton Cams Performance Beehive Valve Springs (155 lb). Conical beehive springs with retainers and locks, delivering 155 lbs of seat pressure for builds up to 4,500 RPM or 65 lbs of boost/drive pressure with moderate cams and OEM-size valves.
Why Choose Hamilton Cams Conical Beehive Valve Springs?
- Improved valvetrain control – Reduce valve float and reversion as boost and RPM climb.
- Higher seat pressure – 155 lbs @ 1.880″ keeps intake or exhaust pressure from forcing valves open, guarding against damage and power loss.
- Power-boosting potential – Customers report 10–12 HP gains switching from 60 lb springs, thanks to consistent valve seal and reduced reversion.
- Conical shape for stability – Improved harmonic damping for smoother, more reliable operation at higher RPM.
- Cleaner combustion – Keeps harmful exhaust gases out of the intake stroke.
Kit Includes
- Conical beehive valve springs (155 lbs seat pressure)
- Retainers & locks – ready to install for most 12-valve Cummins configurations
Fitment Notes
- Intended for builds up to 4,500 RPM with mild-to-moderate cam profiles and stock-size valves.
- Exceeding 4,500 RPM or .360″ lift aftermarket cams, or running larger valves? Step up to the Dual Spring kit for added safety and control.
- Optional locks increase installed height by .075″ if your build requires it.
Fits These Models
1989–1998 Dodge/Ram 2500/3500 5.9L Cummins 12V
Specifications
- Seat pressure: 155 lbs @ 1.880″
- RPM limit: 4,500 RPM
- Boost/drive pressure: up to 65 lbs
Key Features at a Glance
- 155 lb seat pressure – Valves stay shut under boost
- Beehive design – Better harmonic damping
- Retainers & locks included – Ready to install
- 10–12 HP reported – Over 60 lb springs
SKU: 07-S-001
Questions? We’re Here to Help.
Have questions about upgrades for your 12-valve Cummins? Contact FASS Motorsports and we’ll get you dialed:
Phone: 636-429-7020
Email: info@fassmotorsports.com
This part fits the following vehicles:
| Years | Make & Model |
|---|---|
| 1989–1993 | Dodge D250 |
| 1989–1992 | Dodge D350 |
| 1994–1998 | Dodge Ram 2500 |
| 1994–1998 | Dodge Ram 3500 |
Fitment is listed by year, make and model. Some applications also depend on cab, bed, drivetrain or engine — if you are not sure, call 636-429-7020 or send us your vehicle details and we will confirm before you order.
