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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

ARP 7/16-20 X 4.375 1/2 12pt black oxide bolts

$30.97
ARP746-4375
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 4.375 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 4.250 1/2 12pt black oxide bolts

$30.65
ARP746-4250
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 4.250 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 4.000 1/2 12pt black oxide bolts

$30.09
ARP746-4000
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 4.000 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 3.875 1/2 12pt black oxide bolts

$29.86
ARP746-3875
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 3.875 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 3.750 1/2 12pt black oxide bolts

$29.53
ARP746-3750
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 3.750 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 3.625 1/2 12pt black oxide bolts

$29.30
ARP746-3625
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 3.625 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 3.500 1/2 12pt black oxide bolts

$28.97
ARP746-3500
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 3.500 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 3.375 1/2 12pt black oxide bolts

$27.85
ARP746-3375
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 3.375 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 3.250 1/2 12pt black oxide bolts

$26.74
ARP746-3250
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 3.250 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 3.125 1/2 12pt black oxide bolts

$26.49
ARP746-3125
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 3.125 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 3.000 1/2 12pt black oxide bolts

$26.17
ARP746-3000
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 3.000 1/2 12pt black oxide bolts
Quick View
ARP

ARP 7/16-20 X 2.875 1/2 12pt black oxide bolts

$25.53
ARP746-2875
ARP Bolts Engine Components Rod Bolt Kits Uncategorized Under 100
ARP 7/16-20 X 2.875 1/2 12pt black oxide bolts
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