I feel ripped off.
"I got the vallair clutch master kit only to find out it didn't fit my original bracket. I had to shell out another $125 to make it fit. So I'm out $500 for a freakn clutch master cylinder."
Cummins
Shop All
Expert Pick
SKU #: NMU70HYD-01
MPN #: NMU70HYD-01
VALAIR NV4500/NV5600 Heavy Duty Clutch Hydraulics 94-02 Dodge 5.9L Cummins
Description
The hydraulic assemblies designed for the 1998-02 trucks will come with an adjustable arm, allowing for pedal/engagement adjustment, where as the kits for the 1994-97 trucks will have a fixed rod. You can use the adjustable rod (98-02) on a 94-97 valve, but it requires the removal of the neutral safety switch, which is obviously a safety concern.
IMPORTANT NOTES:
If you have an early 1998 12 valve, you will need the kit for a 1998-2002 due to the newer cab style.
1994-1997 version commes with a fixed, non-adjustable rod
1998-2002 version has an adjustable rod
Both year ranges are a twist lock style at the clutch master cylinder. From the factory, the 1994-1997 models are a twist lock where the 1998-2002 are a two bolt design from the factory. If your 1998-2002 still has a two bolt design, you will need to source an adapter separately.
Enter your zip and we'll see if installation is available.
- Request quotes from local installers at checkout
- Compare options and choose the best fit for your install
About WrenchConnected
WrenchConnected is an independent installation marketplace operating in partnership with Diesel Power Products.
How it works
After checkout, we route your vehicle info and part SKU to verified installation shops near you. Local installers review the job and submit competitive bids; you pick the shop you want based on price, reviews, and availability. Your name and email stay private until you select an installer.
Pricing
You pay for the bid from your preferred shop. The full amount is shown before you confirm — installers cannot add charges without your written consent. Payments are processed securely by Stripe.
Your privacy
During bidding, shops see only your service ZIP code, vehicle year/make/model, and the part SKU — not your name, email, or address. Only the shop you select receives your contact details after payment. We never sell your personal information.
More detail at wrenchconnected.com.
About Valair Clutch
SHOP VALAIR CLUTCHES AND CLUTCH PARTS AT DPP!
When we at Diesel Power Products started shopping around for a diesel clutch manufacturer to showcase, we had a lot of choices. It soon became clear that one company offered the combination of quality, durability, customer service, price and integrity that we were looking for. Valair Clutch has not failed to live up to our expectations.
Valair started as Vallance Remanufacturing in Mineral Wells, Texas, about 60 miles West of Fort Worth, in the early 1990s. The company concentrated on rebuilding clutch assemblies for heavy trucks and agriculture. The location allowed Valair to keep cost low and supply the Dallas/Fort Worth area as well as the local areas with quality replacement parts.
In 2004, Valair addressed an interest in the performance clutch market for high horsepower diesel trucks. Research and development started to source the parts for these applications. Valair was already building clutches for most OTR trucks capable of holding up to 2250 ft. lbs torque and was adapting these principles from these OTR clutches into a smaller package for ¾ and 1 ton trucks.
After two years of R&D, Valair's ˜Performance Series Clutches were marketed to the diesel truck enthusiast who wanted a quality high performance clutch at a reasonable price. All of these clutches are assembled in Mineral Wells, Texas from the highest quality parts available and are now being sold all over the World.
Whether you are looking for a stock replacement, towing clutch, or a high performance clutch for sled pulling or drag racing, they have just the clutch for you.
Blog
June 12, 2026
The diesel particulate filter (DPF) on your Cummins engine traps soot before it leaves the tailpipe. Over...
Read MoreCummins DPF Cleaning: Signs, Methods & Tips
June 12, 2026
P2509 flags when your Cummins ECM isn't seeing stable voltage coming from the battery and charging system....
Read MoreP2509 Cummins Code: Causes, Symptoms & Fixes
June 10, 2026
It starts small. Maybe the truck is a little slower to spool than usual. Maybe it sounds...
Read MoreHow to Find a Boost Leak Without Special Tools
June 05, 2026
Your exhaust system moves spent gases out of the engine and away from the cab. The muffler...
Read MoreResonator vs Muffler: Key Differences Explained
Overall rating: 3.9166667 / 5 from 12 reviews.
AI Generated Review Summary
Summary topics
Review topics: ["buy","clutch"].
Review highlights
Reviews
Works
"Works as they should. Only downside is there are no instructions"
Mater cylinder
"Didn’t come with spacer to tighten up the master into thebracket on firewall, I’d like one of those. Honestly"
Worst slave cylinder ever
"I would never tell anyone to buy this product. I bought this product due to i bought a Valair Clutch. Everyone said they were great for towing. Had problems from the start. The bd slave comes with everything new. Diesel power products did more than valair. Diesel power products was great to deal with valair was the worst to deal with. I will never buy anything from them again. But i will always order from these guys. Bought a bd hydraulic kit truck has never shifted this good."
Lasted two weeks.
"It was in the truck for two weeks before all four locking tabs sheared off and the master cylinder fell through the fire wall and into the engine bay while driving. The factory hydraulics have a lighter pedal too."
Super satisfied
"Awesome product. It eliminates the painstaking task of bleeding the system, and this brilliant factor makes it worth every cent. The line is shorter than the OEM component, but the slave and master cylinders swivel, thus making installation easier and allowing for a more direct route along the firewall and down to the transmission."
Yes, i would buy again.
"I received the product quicker than expected. It came primed with fluid and was ready to go. The whole thing is assembled from the seller. It fit as described, and works well. My truck is a 12 valve 1998 one ton and the fuel is turned up a little, so I don't have any upgrades that would cause it bleed-by that quickly. I put an aftermarket master/slave cylinder about 5000 miles ago, and it started bleeding off about 3 months after I bought it, and I decided I need to buy a product that will not fail after 3 months. I don't put that many miles on my truck a year, mostly short drives around the farm, and town. In other words, I mash the clutch quite a bit. At first, I was hesitant because of the price was higher than something from the other places, but this combination was ready to go, and it does not leak by like every other one I have bought. I shopped around online and found this set-up as the better value. Who knows, I may need to upgrade to a stronger clutch/pressure plate someday soon, I think this will help with that too."
i would buy this product again
"received my order on time product was perfect and installation was easy very satisfied with purchase only the best for my 2nd gen"
It works as good as promised
"Exactly as advertised."
great product
"fixed problem occurring from stock part."
Q&A
- Do these come pre filled/bled
- Yes, these units will come pre-filled/bled and ready for install.
- Can i use a 98-02 kit to my '97 truck due to the adjustable master rod option with bypassing the neutral safety switch or the master cylinder, even if it is switch in style and not bolt on the bracket , is longer than the stock one and the 94-97 hd one so won't let me to set it?
- It requires some work, too much to type out. Shoot us a call. -Sands
- Can i use a 98-02 kit to my '97 truck due to the adjustable master rod option with bypassing the neutral safety switch or the master cylinder, even if it is switch in style and not bolt on the bracket , is longer than the stock one and the 94-97 hd one so won't let me to set it?
- It requires some work, too much to type out. Shoot us a call. -Sands
- How much psi do the cylinder push outm
- That information is currently not available from the manufacture. - AW