Good quality sticker and even better packaging. Came in a nice firm envelope to protect the sticker
1
of
2
Loading...
XDP Performance Valve Springs & Retainer Kit 1989-1998 Dodge 5.9L Cummins
SKU:
XD389
$419.95
Unit price
/
Unavailable
- Make: Dodge/Ram
- Year/Engine: 1989-1993 5.9L 12V Cummins | 1994-1998 5.9L 12V Cummins
XDP Performance Valve Springs & Retainer Kit 1989-1998 Dodge 5....
$419.95
Unit price
/
Unavailable
This product cannot be shipped to these states/provinces: CA
Fortify the valvetrain in your 1989-1998 Dodge 5.9L Cummins when you install the XDP Performance Valve Springs and Retainer Kit XD389. Valve springs are a vital upgrade that are often ignored in many performance builds.
The stock valve springs in your Cummins engine are not designed to handle the increased engine RPM or higher boost levels that are common in modified applications.
Even typical upgrades like an exhaust brake, aftermarket turbocharger, fuel plate, and injectors can trigger valve float that may result in catastrophic engine damage. In addition, your valves can be pushed open by boost and drive pressure causing reversion.
Reversion is when exhaust gasses flow back into the cylinder on the intake stroke, hindering your engine performance. These potential issues are the reason upgraded valve springs are essential on modified engines!
The XDP Performance Valve Springs and Retainer Kit XD389 features a conical design that offers improved valve control over a basic straight spring. The conical shape allows for a smaller and lighter weight spring retainer that is more robust due to the reduction in size. Unlike other aftermarket valve springs, the XD313 Valve Spring Kit can be used on a wide range of applications, from stock all the way up to race-built engines.
This makes these springs a perfect option for a one-and-done upgrade that lets you upgrade your engine to support more power in the future. Each spring is subjected to a stress relief process and is computer load mapped to give a superior-quality product with long-term resilience.
Tested within 1 lb of seat pressure, this valve spring and retainer set comes complete with locks, retainers, springs and supported by XDP's 1 year unlimited mileage warranty.
Features:
- Conical Spring Design
- Performance Valve Spring Kit
- Safe To Operate Up To 5,000 RPM
- Essential For Elevated Boost Levels
- Complete Set (Springs, Locks and Retainers)
Specifications:
- Installed Height: 1.940 inch
- Installed Pressure: 172lbs
- Open Pressure: 375lbs at 1.275 inch
- Coil Bind: 1.225 inch
Customer Reviews
Overall rating: 4.8 / 5 from 1499 reviews.
Literally both hoodies all the time!!! Nice and heavy! Great for cold weather days!! Thanks guys!!
Enjoyed being involved in the giveaways. And seeing the content. Above all the trucks they are putting out are epic
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Everything was absolutely perfect. No issues delivered in a timely manner. The packaging was great. I highly recommend FSD for all your diesel truck parts. Kevin is a standup gentleman and will do everything he can to go above and beyond to satisfy each and everyone of his customers. Thanks Kevin and everyone @FSD.
Hoping I win something I’ve wanted a Cummins my whole life and I love dodge trucks please give me a win for being a member fro a long time now
it's a great hat
Just recently bought it hopefully will make it to and fp event
I'm totally pleased with my purchase and all the up grades that I've done to accommodate the FSD Heat Exchanger. Everything is working good and if i could i would add another one and also add a coolant bypass.
Awesome
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome giveaways hope to win one day
Love the products
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome products
Great company to support and has great quality products!
Fits great
….
“BMT#3” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Amazing
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
love it
Love the shirt, so comfortable
Fast shipping definitely buy again
Great
Love all the content!
Everything went sweet by order. I got it back and a reasonable amount of time. Love the product. Good quality shirt, one of my favorites. I enjoy your videos and your vehicles.Keep up to good work and all the customizing.More custom the better
Amazing product!!! Great addition to my engine bay
Excellent
I love it. It fits amazing in our 2020 Dodge and our 2024 GMC.
Nothing but Quality on my daily’s keys and it’s not uncomfortable in pocket
Love it
My Lil 10mm buddy found him a nice warm comfy place to hangout!!!
Love the gear
Don’t get no better than FSD
Shipped and arrived at my house in 2 weeks
Love your products. 🤘🏻
Loving this shirt
Love it!💯👍
Sticky sticker sticks well
good
Buy a lot for you guys for my customers and my own personal diesels truck
Loving this shirt
Fits amazingly
Awesome products
Customer Reviews
Overall rating: 4.8 / 5 from 1499 reviews.
Good quality sticker and even better packaging. Came in a nice firm envelope to protect the sticker
Literally both hoodies all the time!!! Nice and heavy! Great for cold weather days!! Thanks guys!!
Enjoyed being involved in the giveaways. And seeing the content. Above all the trucks they are putting out are epic
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Everything was absolutely perfect. No issues delivered in a timely manner. The packaging was great. I highly recommend FSD for all your diesel truck parts. Kevin is a standup gentleman and will do everything he can to go above and beyond to satisfy each and everyone of his customers. Thanks Kevin and everyone @FSD.
Hoping I win something I’ve wanted a Cummins my whole life and I love dodge trucks please give me a win for being a member fro a long time now
it's a great hat
Just recently bought it hopefully will make it to and fp event
I'm totally pleased with my purchase and all the up grades that I've done to accommodate the FSD Heat Exchanger. Everything is working good and if i could i would add another one and also add a coolant bypass.
Awesome
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome giveaways hope to win one day
Love the products
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome products
Great company to support and has great quality products!
Fits great
….
“BMT#3” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Amazing
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
love it
Love the shirt, so comfortable
Fast shipping definitely buy again
Great
Love all the content!
Everything went sweet by order. I got it back and a reasonable amount of time. Love the product. Good quality shirt, one of my favorites. I enjoy your videos and your vehicles.Keep up to good work and all the customizing.More custom the better
Amazing product!!! Great addition to my engine bay
Excellent
I love it. It fits amazing in our 2020 Dodge and our 2024 GMC.
Nothing but Quality on my daily’s keys and it’s not uncomfortable in pocket
Love it
My Lil 10mm buddy found him a nice warm comfy place to hangout!!!
Love the gear
Don’t get no better than FSD
Shipped and arrived at my house in 2 weeks
Love your products. 🤘🏻
Loving this shirt
Love it!💯👍
Sticky sticker sticks well
good
Buy a lot for you guys for my customers and my own personal diesels truck
Loving this shirt
Fits amazingly
Awesome products
