The latest ARP News
ARP is now the official Head Bolt of NADM

December 8, 2011, Ventura, CA – ARP is proud to announce that it has signed a multi-year official product sponsorship agreement with DIESEL Motorsports (National Association of Diesel Motorsports), and will be the official Head Bolt of this sanctioning organization.
"We are excited about our continued partnership with the DIESEL Motorsports race and pulling series," stated Chris Rasche, "In addition to being a premiere sanctioning series for competitive Diesel racing and pulling; it is an ideal proving ground for our diesel engine technology." Rasche added, "the diesel market is huge for us and by leveraging the exposure of the series and the fact that many are multi–use vehicles. We feel we can reach not only the diesel competitor but also the towing and fuel economy diesel market. By being an official product of DIESEL Motorsports we hope to create awareness about our exciting technology and the big benefits for diesels."
ARP is now the official Head Stud of NHRDA

Since ARP head studs are the de facto standard for today's diesel engines, it only makes sense for ARP to be the official head stud of the National Hot Rod Diesel Association. NHRDA competitors are continually pushing the limits of power and torque that diesel engines can generate and they use ARP to keep the heads on.
ARP Ultra-Torque™
Fastener Assembly Lubricant
Today's critical diesel fasteners - head studs and bolts, main studs and bolts, and driveline - have been designed stronger than ever before to handle the extreme loads. As a results, installation pre-loads - the amount the fastener is stretched during installation - are very high.
There are a lot of opinions out there about which fastener assembly lube to use and what the torque value should be. First, let's be clear: ARP provides torque specs for our fasteners based on using ARP Ultra-Torque. If you're not using our specs and our lube, you have no real idea what pre-load you're getting. We've done the testing where we can measure the torque applied and the resulting pre-loads. We've tested with our lube and the others people use...and we've got the results to back it up. (It's not like we're trying to sell more lube - we send you some free in every kit! We just want you're installation to be right.)
The slides below will show why you should use ARP Ultra-Torque:
Fastener Assembly Lube Basics:
ARP Ultra-Torque Detail Paper
New ARP diesel Kits
204-4706 - VW/Audi 1.6L & 1.9LTDI Head Stud Kit
Pro Series ARP2000 head stud kit for 1982-2002 VW/Audi 1.6L and 1.9L Turbo and Non-Turbo diesel applications. The applications covered by this listing include the following engine codes: 1.6L (CR, JK, JP, JR, ME, RA, SB, 1V, SV, CY) and 1.9L (AGP, AGR, AHF, ALH, AQM, ASV, AAZ, AEY, AFN, AHU, ALE, AVG, AHH, AKW, AEF, AGD, ASX, ASY, AYQ, 1Y, 1Z) engine codes.
The kit includes a set of ten ARP2000 head studs, ten parallel ground washers, ten 8740 chrome moly steel 12 pt nuts and a 1/2 oz. pack of ARP Ultra-Torque fastener assembly lubricant. All Pro Series ARP2000 studs are centerless ground, heat treated prior to thread rolling and machining, and are nominally rated at 220,000 psi. These fasteners deliver a 45% increase in tensile strength over the OEM Torque To Yield (TTY) head bolts.
For a full listing off all ARP's diesel kits, click here.
Email updates
ARP is constantly researching and developing new kits and products. Our most recent major product announcement was for ARP Ultra-Torque, our new fastener assembly lubricant.
If you would like to be notified about our new products, trade shows, and everything else ARP, you can sign up for any or all of our various forms of communications.
Here's are the links to a few of our recent updates:
Twitter Updates
We also use Twitter to publish brief updates and more timely information. You can see our most recent tweets below. You can follow us by clicking the the button below that box.

ARP Diesel Blog
ARP posts diesel stories of interest relating our diesel kits and the people and racers who use them. You can read these stories on our diesel blog. If you have an interesting story, send us an email and we'll post it here.
ARP Racer Results
We post results for racers who use ARP and all the major series. You can check the results of your favorite series on our racer results blog. If you have an update for your local track or series and you're running ARP, then send us an email.