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⚡ Unlock your Cummins’ true potential with precision-engineered power springs!
The P7100 Spring kit is a direct replacement for the governor springs in 1994-1998 Dodge Cummins 12V 5.9L engines with Bosch P7100 injection pumps. Made from durable iron, it ensures precise fitment and improved throttle response, delivering consistent power across the RPM band. Designed for easy front mounting installation, this kit is a trusted upgrade for diesel enthusiasts seeking reliable performance enhancements.
| ASIN | B07WTV6H2J |
| Auto Part Position | Front |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #494,895 in Automotive ( See Top 100 in Automotive ) #56 in Automotive Replacement Fuel Injection Pumps |
| Body Material | Iron |
| Brand | Huthbrother |
| Customer Reviews | 4.3 4.3 out of 5 stars (90) |
| Date First Available | August 21, 2019 |
| Fit Type | Vehicle Specific Fit |
| Gas Type | Diesel |
| Inlet Connection Type | Threaded (NPT) |
| Item Weight | 4.2 ounces |
| Item model number | P7100 |
| Manufacturer | Huthbrother |
| Manufacturer Part Number | P7100 |
| Material | Iron |
| Mounting Type | Front Mount |
| Operation Mode | 12v |
| Outlet Connection Type | Threaded |
| Package Dimensions | 4.69 x 4.33 x 1.26 inches |
| Product Grade | Replacement Part |
| UPC | 783347836630 |
| Vehicle Service Type | pickup 2 |
J**N
Great price
Fit perfectly and work great
S**R
Perfect for my 12V
Installed these in my Cummins 12V and what a difference they make! Power all throughout the RPM band. Quality looks good and no issues with the install.
S**K
Worked for my truck
Good price for my Toyota
K**E
Good for the money
They work well, but mine had burs in the retainers. They pushed right out. Just something to be aware of so you don't have loose metal shavings in your pump.
A**R
4k springs
Works like a charm
P**S
Use a playing card to prevent lost pieces
Best upgrade for little money. Do this before you do anything else, not multiple things at once. Installed in a f-800 5.9l industrial Cummins motor tow truck that used to top out about 65. Did 3k kit leave out small spring, now 75 with ease. Will recommend to others and would buy again if or when we have another truck with this 5.9l motor.
A**R
Took a chance, would recommend.
Springs are great quality; I was very skeptical because of the price but have no regrets. Install was relatively easy, Power Driven Diesel has a great video for swapping these out that I recommend watching. I will emphasis BE CAREFUL when removing the old springs so you don't drop the shims into the AFC housing and have to sweat bullets while trying to fish them out with a small magnetic pickup (ask me how I know). I'm only running the 3k on my truck as I don't have upgraded valve springs and this definitely made a noticeable difference in my low & upper end power band.
S**Z
Works as described
This spring set helped bumping up my 12 valve top rpms from 2200 to 3000 (smallest spring not installed). Also the gas pedal has a quicker response, love this mod!
R**L
3k/4k spring kit as advertised, appear to be good quality , reasonable pricing compared to other sellers. Would recommend !
C**N
Work ok at first but later as i have run them for a month the springs are sticking to each other and makes my engine get stuck at 2000 rpm and you have to fight it but dont buy these
Trustpilot
3 weeks ago
2 weeks ago