Product Description
FLEECE FPE-34797 CUMMINS 24V SPRING AND RETAINER SET
The FLEECE FPE-34797 Cummins 24V Spring and Retainer Set is a must-have upgrade for high-boost, high-RPM 1998.5–2018 5.9L / 6.7L 24-valve Cummins builds. Engineered with “super clean” Hi-Tensile Chrome Silicon steel valve springs and thru-hardened 4140 chromoly retainers, this kit delivers 105 lb seat pressure and 195 lb open pressure at max lift to keep your valves under control when you lean on big boost, aggressive tuning, or a performance cam.
Key Features
- Built for high boost: 105 lb seat pressure and 195 lb open pressure at max lift to control valve motion in high-cylinder-pressure Cummins builds.
- Hi-Tensile Chrome Silicon steel springs: Manufactured from “super clean” wire and heat-treated in a proprietary multi-step process to minimize load loss over time.
- 4140 chromoly retainers: Thru-hardened retainers with a durable black oxide finish provide exceptional strength and corrosion resistance.
- Perfect for 24V Cummins: Designed specifically for 1998.5–2018 24-valve 5.9L and 6.7L Cummins engines in Dodge/Ram 2500 & 3500 trucks.
- Ideal for performance cams & RPM: Excellent choice when adding a performance cam, more boost, or increased RPM where stock springs can float.
- Complete kit: Includes matched springs and retainers for a straightforward installation.
Vehicle Fitment
This FLEECE FPE-34797 Cummins 24V Spring and Retainer Set fits:
- 1998.5–2002 Dodge Ram 2500/3500 5.9L 24V Cummins
- 2003–2007 Dodge Ram 2500/3500 5.9L 24V Cummins (common rail)
- 2007.5–2018 Dodge/Ram 2500/3500 6.7L 24V Cummins
Recommended usage:
- Trucks running increased boost pressure, larger turbochargers, or aggressive tuning.
- Engines with upgraded camshafts and higher RPM operation.
- Street performance, towing performance, and competition diesel builds that demand stable valvetrain control.
Cross-Reference & Related Fleece Products (CPP Diesel)
Pair this spring and retainer kit with other Fleece valvetrain and Cummins components available at CPP Diesel:
- Fleece billet rocker arm bridges: FLEECE FPE-BRAB-C1 1998.5-2018 24V 5.9L/6.7L CUMMINS ROCKER ARM BRIDGES SET OF 12
- OE replacement rocker arm assembly: FLEECE FPE-CUMM-RAA-CR OE REPLACEMENT ROCKER ARM ASSEMBLY FOR 5.9L AND 6.7L CUMMINS ENGINES
- Stage 2 pushrods for 24V Cummins: FLEECE FPE-CUMM-S2-PROD 24V CUMMINS STAGE 2 PUSHRODS, 0.375 INCH DIA
- Freedom Series Cummins cylinder heads: FLEECE FPE-61-10005 5.9L FREEDOM SERIES CUMMINS CYLINDER HEAD STREET
Why Upgrade Your 24V Cummins Valve Springs?
Factory valve springs on 24V Cummins engines were never designed for big boost, large turbos, or extended high-RPM use. At elevated cylinder pressures, stock springs can allow valve float, valve bounce, or even valve-to-piston contact. The FLEECE FPE-34797 kit provides the extra pressure and strength needed to keep your valves tightly under control so your tune, turbo, and cam can safely do their job.
Specifications for FLEECE FPE-34797
| Specifications for FLEECE FPE-34797 | |
|---|---|
| Brand | Fleece Performance Engineering |
| Part Number | FPE-34797 |
| UPC | 670875716803 |
| GTIN | 0670875716803 |
| Engine | 5.9L / 6.7L 24-valve Cummins diesel |
| Model Years | 1998.5–2018 Dodge/Ram 2500 & 3500 |
| Seat Pressure | 105 lbs @ installed height |
| Open Pressure | 195 lbs at maximum lift |
| Spring Material | Hi-Tensile Chrome Silicon steel, multi-step heat treated |
| Retainer Material | Thru-hardened 4140 chromoly steel, black oxide finish |
| Configuration | Complete spring and retainer set (24V Cummins) |
| Intended Use | High boost / performance 24V Cummins applications |
| Cross Reference | Complements FPE-BRAB-C1 rocker arm bridges, FPE-CUMM-RAA-CR rocker arm assembly, and FPE-CUMM-S2-PROD pushrods on 1998.5–2018 24V Cummins engines. |
| Country of Origin | USA (per supplier listings) |
| Shipping Weight | Approx. 2 lbs |
| Package Dimensions (WxHxL) | 5.0" x 3.0" x 8.0" |
| Shipping Method | Standard ground, small parcel (free shipping eligible where noted) |
| E-codes | Not specified |
| Prop 65 Warning | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
FAQ
This kit is designed for 1998.5–2018 24-valve Cummins engines, including 5.9L and 6.7L engines found in Dodge/Ram 2500 and 3500 trucks. It covers VP44 24V engines, common-rail 5.9L, and 6.7L applications.
When do I need to upgrade from stock valve springs?
If you are running higher boost pressure, a larger turbocharger, aggressive tuning, or a performance cam, stock valve springs can start to float or bounce at elevated RPM and cylinder pressures. Upgrading to this Fleece kit provides 105 lb seat and 195 lb open pressure to keep the valves stable and protect your engine.
Will these springs work on a tow rig, or are they race-only?
They’re an excellent choice for both tow rigs and performance builds. The added spring pressure offers improved control without being so aggressive that they’re impractical for street or towing use when installed correctly.
Do I need any special retainers or hardware with this kit?
No extra retainers are needed. This kit includes matched springs and 4140 chromoly retainers designed to work together on 24V Cummins valvetrain components. Always inspect locks/keepers and replace worn hardware during the install.
What other parts should I upgrade along with valve springs?
For a complete, reliable valvetrain upgrade on your 24V Cummins, pair this kit with Fleece rocker arm bridges, OE replacement rocker arms, and Stage 2 pushrods from CPP Diesel. These components work together to handle the added cylinder pressure and RPM of modern Cummins performance builds.
