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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 14mm ID-2in OD Washer Quick View
ARP

ARP 14mm ID-2in OD Washer

$9.50
ARPAZW200
ARP Engine Components Hardware - Singles Under 100
ARP 14mm ID-2in OD Washer
ARP 1/2 x 6.5in Long Broached Individual Stud Quick View
ARP

ARP 1/2 x 6.5in Long Broached Individual Stud

$9.24
ARPAR6.500-1LB
ARP Engine Components Hardware - Singles Under 100
ARP 1/2 x 6.5in Long Broached Individual Stud
ARP 1/2in x 5.5.310 ARP2000 Stud Quick View
ARP

ARP 1/2in x 5.5.310 ARP2000 Stud

$15.47
ARPAR5.310-2GB
ARP Engine Components Hardware - Singles Under 100
ARP 1/2in x 5.5.310 ARP2000 Stud
ARP 7/16-20 12pt Nut 9/16 Wrench Quick View
ARP

ARP 7/16-20 12pt Nut 9/16 Wrench

$2.05
ARPAPN12-2
ARP Engine Components Hardware - Singles Under 100
ARP 7/16-20 12pt Nut 9/16 Wrench
ARP 3/8inch x 2.310inch OAL Stud Quick View
ARP

ARP 3/8inch x 2.310inch OAL Stud

$4.00
ARPAJ2.310-1LB
ARP Engine Components Hardware - Singles Under 100
ARP 3/8inch x 2.310inch OAL Stud
ARP 5/16in ID x 0.675in OD No Chamfer Washer (One Washer) Quick View
ARP

ARP 5/16in ID x 0.675in OD No Chamfer Washer (One Washer)

$0.90
ARPAGW675N
ARP Engine Components Hardware - Singles Under 100
ARP 5/16in ID x 0.675in OD No Chamfer Washer (One Washer)
ARP M8 x 1.25 Stud w/ Broach Nose Quick View
ARP

ARP M8 x 1.25 Stud w/ Broach Nose

$4.02
ARPAF1.750-12GB
ARP Engine Components Hardware - Singles Under 100
ARP M8 x 1.25 Stud w/ Broach Nose
ARP M12 x 1.75 Thread Cleaning Tap Quick View
ARP

ARP M12 x 1.75 Thread Cleaning Tap

$74.22
ARP912-0016
ARP Automotive Tools Tools Under 100
ARP M12 x 1.75 Thread Cleaning Tap
ARP 7/16-14 2.180in UHL Chrome Moly Black Oxide 12 Point 1/2in Wrenching Head Quick View
ARP

ARP 7/16-14 2.180in UHL Chrome Moly Black Oxide 12 Point 1/2in Wrenching Head

$2.02
ARP5AP2.180-5
ARP Engine Components Hardware - Singles Under 100
ARP 7/16-14 2.180in UHL Chrome Moly Black Oxide 12 Point 1/2in Wrenching Head
ARP Replacement 3/8 x 1.500 UHL 12pt ARP 2000 Material Rod Bolt Quick View
ARP

ARP Replacement 3/8 x 1.500 UHL 12pt ARP 2000 Material Rod Bolt

$8.54
ARP4AJ1.500-2SU
ARP Engine Components Hardware - Singles Under 100
ARP Replacement 3/8 x 1.500 UHL 12pt ARP 2000 Material Rod Bolt
ARP SB Chevy 6.2L LT1 SS 12PT Header Stud Kit Quick View
ARP

ARP SB Chevy 6.2L LT1 SS 12PT Header Stud Kit

$117.04
ARP434-1401
ARP Engine Components Hardware Kits - Other
ARP SB Chevy 6.2L LT1 SS 12PT Header Stud Kit
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ARP Chevy SBC/GenIII LS 3/8in Flange SS 12pt Header Bolt Kit Quick View
ARP

ARP Chevy SBC/GenIII LS 3/8in Flange SS 12pt Header Bolt Kit

$57.15
ARP434-1202
ARP Engine Components Hardware Kits - Other Under 100
ARP Chevy SBC/GenIII LS 3/8in Flange SS 12pt Header Bolt Kit
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