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ARP

They say that to be successful you must identify a need and satisfy it. Back the early 1970s, racing enthusiast Gary Holzapfel saw that many of his friends’ broken engines were caused by fastener failure.

At the time, there were no commercially available studs and bolts up to the challenge. So Holzapfel called upon his many years of fastener-making experience for a leading aerospace subcontractor and founded ARP (Automotive Racing Products).

In the ensuing years, the firm has grown from what was literally a backyard garage workshop into a highly diversified manufacturer with seven operational entities in Southern California with a combined area in excess of 200,000 square feet. These include forging, heat-treating, machining, quality control finishing and packaging/warehousing facilities in Santa Paula and Ventura, California.

Today, ARP’s product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline and throughout the suspension and frame. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.

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ARP Audi 5-Cylinder 96 & Earlier Main Stud Kit AJ-USA, Inc Quick View
ARP

ARP Audi 5-Cylinder 96 & Earlier Main Stud Kit

$145.80
ARP204-5409
ARP Engine Components Main Stud & Bolt Kits
ARP Audi 5-Cylinder 96 & Earlier Main Stud Kit
ARP VW/Audi 2.0L (FSI) 4cyl Main Stud Kit Quick View
ARP

ARP VW/Audi 2.0L (FSI) 4cyl Main Stud Kit

$149.69
ARP204-5408
ARP Audi A4 Engine Components Main Stud & Bolt Kits
ARP VW/Audi 2.0L (FSI) 4cyl Main Stud KitThis Part Fits: Year Make Model Submodel 2005-2008 Audi A4 Base 2007-2009 Audi A4 Cabriolet 2005-2008 Audi...
ARP Porsche 2.0L/2.7L Crankcase Thru Bolt Kit Quick View
ARP

ARP Porsche 2.0L/2.7L Crankcase Thru Bolt Kit

$1,220.88
ARP204-5407
ARP Bolts Engine Components Main Stud & Bolt Kits Porsche 911 Porsche 911 Uncategorized
ARP Porsche 2.0L/2.7L Crankcase Thru Bolt KitThis Part Fits: Year Make Model Submodel 1965-1968 Porsche 911 Base 1969 Porsche 911 E 1968 Porsche 911...
ARP Porsche 3.6L/3.8L Crankcase Thru Bolt Kit Quick View
ARP

ARP Porsche 3.6L/3.8L Crankcase Thru Bolt Kit

$1,344.21
ARP204-5406
ARP Bolts Engine Components Main Stud & Bolt Kits Porsche 911 Porsche 911 Uncategorized
ARP Porsche 3.6L/3.8L Crankcase Thru Bolt KitThis Part Fits: Year Make Model Submodel 1995-1997 Porsche 911 Carrera 1990-1994 Porsche 911 Carrera 2 1989-1997 Porsche...
ARP Porsche 3.0L/3.3L Crankcase Thru Bolt Kit Quick View
ARP

ARP Porsche 3.0L/3.3L Crankcase Thru Bolt Kit

$1,246.56
ARP204-5405
ARP Bolts Engine Components Main Stud & Bolt Kits Uncategorized
ARP Porsche 3.0L/3.3L Crankcase Thru Bolt KitThis Part Fits: Year Make Model Submodel 1978-1979 Porsche 930 Turbo
ARP Audi 5cyl Main Stud Kit Quick View
ARP

ARP Audi 5cyl Main Stud Kit

$149.73
ARP204-5404
ARP Engine Components Main Stud & Bolt Kits
ARP Audi 5cyl Main Stud KitThis Part Fits: Year Make Model Submodel 1989-1991 Audi 100 Base 1989 Audi 100 E 1989-1991 Audi 100 Quattro...
ARP VW/Audi VR6 Main Stud Kit Quick View
ARP

ARP VW/Audi VR6 Main Stud Kit

$167.01
ARP204-5403
ARP Engine Components Main Stud & Bolt Kits
ARP VW/Audi VR6 Main Stud KitThis Part Fits: Year Make Model Submodel 1999 Volkswagen Golf GTI 1995-1998,2002-2005 Volkswagen Golf GTI VR6
ARP VW Water Cooled Main Stud Kit Quick View
ARP

ARP VW Water Cooled Main Stud Kit

$155.47
ARP204-5402
ARP Engine Components Main Stud & Bolt Kits
ARP VW Water Cooled Main Stud Kit
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ARP Porsche 996 Main Bolt Kit Quick View
ARP

ARP Porsche 996 Main Bolt Kit

$143.69
ARP204-5001
ARP Engine Components Main Stud & Bolt Kits Porsche 911 Porsche 911
ARP Porsche 996 Main Bolt KitThis Part Fits: Year Make Model Submodel 1999-2001 Porsche 911 Carrera
ARP Audi RS3/TT-RS 2.5T ARP2000 Head Stud Kit AJ-USA, Inc Quick View
ARP

ARP Audi RS3/TT-RS 2.5T ARP2000 Head Stud Kit

$301.73
ARP204-4708
ARP Engine Components Head Stud & Bolt Kits Head Stud & Bolt Kits
ARP Audi RS3/TT-RS 2.5T ARP2000 Head Stud Kit
ARP Porsche 996 3.4/3.6 Head Stud Kit Quick View
ARP

ARP Porsche 996 3.4/3.6 Head Stud Kit

$643.86
ARP204-4707
ARP Engine Components Head Stud & Bolt Kits Head Stud & Bolt Kits Porsche 911 Porsche 911
ARP Porsche 996 3.4/3.6 Head Stud KitThis Part Fits: Year Make Model Submodel 1999-2001 Porsche 911 Carrera
ARP VW Audi 1.9L Turbo Diesel Head Stud Kit ARP VW Audi 1.9L Turbo Diesel Head Stud Kit Quick View
ARP

ARP VW Audi 1.9L Turbo Diesel Head Stud Kit

$226.99
ARP204-4706
ARP Engine Components Head Stud & Bolt Kits Head Stud & Bolt Kits
ARP VW Audi 1.9L Turbo Diesel Head Stud KitThis Part Fits: Year Make Model Submodel 1982-1983 Volkswagen Rabbit Pickup Base
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