Automotive Racing Products, Inc.

The World Leader in racing fastener technology since 1968

If you're installing our diesel kit, make sure you're using ARP Ultra-Torque™ fastener assembly lubricant

Find the latest on new diesel parts, ARP racer results and a whole lot more...

ARP has dealers all over the world. Please call to make sure they have what you're looking for.

Have a tech question? Looking for a special part or kit? Our support desk can point you in the right direction.

ARP makes more than just diesel fasteners. View, download or request our full catalog today.

ARP has additional Web sites for specific markets in addition to our main site.

Download or
Request a Catalog

Web site - always the most current parts. You can view the entire catalog or download the latest version as a PDF.

Printed Catalog - We'll mail you our most recent catalog free of charge.


We Take Quality Seriously

ARP ISO 9001 and AS9100 Certifications

ARP achieved ISO 9001 and AS9100 registration in 2009. These registrations represent ARP's unwavering dedication to producing quality fasteners, continually improving our quality management system and delivering total customer satisfaction.

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Send us your diesel photos

Have a great diesel ride that uses ARP? Email us your photo along with any interesting information. Click here


Do you have suggestions on how we can improve?

As part of our continuous improvement processes, we are always looking for feedback. This might be a suggestion for a new kit or something that we should add to our Web site.

Click here to let us know.

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

NHRDA Official Product

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:

Email Newsletter icon, E-mail Newsletter icon, Email List icon, E-mail List icon Sign up for Email 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.

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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.

Technical Support

Questions about which kit to use, torque values or your specific installation.

Hours
M-F 7:30a-4:30p PST
800-826-3045 or
805-339-2200

You can call us or use our online form to submit your question.


Latest ARP News

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FAQs - Frequently Asked Questions

We've answered several of the most common questions we get. Check here before you call or submit a questions online and you may save yourself some time.

Answers to FAQs