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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 5/16-24 X 0.560 Hex Black Oxide Bolts

$10.47
ARP751-0625
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 5/16-24 X 0.560 Hex Black Oxide Bolts
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ARP

ARP 1/4-28 X 0.875 Hex Black Oxide Bolts

$9.84
ARP750-0875
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 1/4-28 X 0.875 Hex Black Oxide Bolts
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ARP

ARP 1/4-28 X 0.625 Hex Black Oxide Bolts

$9.45
ARP750-0625
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 1/4-28 X 0.625 Hex Black Oxide Bolts
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ARP

ARP 1/4-28 X 0.625 12pt Black Oxide Bolts

$9.84
ARP740-0625
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 1/4-28 X 0.625 12pt Black Oxide Bolts
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ARP

ARP 1/4-20 X 4.125 Hex Black Oxide Bolts

$15.71
ARP650-4125
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 1/4-20 X 4.125 Hex Black Oxide Bolts
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ARP

ARP 5/16-18 X 4.750 12pt SS Bolts

$29.99
ARP612-4875
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 5/16-18 X 4.750 12pt SS Bolts
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ARP

ARP 5/16-18 X 4.625 12pt SS Bolts

$29.40
ARP612-4625
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 5/16-18 X 4.625 12pt SS Bolts
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ARP

ARP 5/16-18 X 4.375 12pt SS Bolts

$28.80
ARP612-4375
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 5/16-18 X 4.375 12pt SS Bolts
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ARP

ARP 1/4-20 X 0.875 12pt SS 5PK Hardware Kit

$13.24
ARP611-0875
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 1/4-20 X 0.875 12pt SS 5PK Hardware Kit
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ARP

ARP 2004+ LS3/LS4 SBC Head Stud Thread Repair Kit

$1,092.47
ARP434-4348
ARP Automotive Tools Tools
ARP 2004+ LS3/LS4 SBC Head Stud Thread Repair Kit
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ARP

ARP 18-20 Ford Coyote 5.0L V8 CA625+ Head Stud Kit

$1,266.90
ARP256-4305
ARP Engine Components Head Stud & Bolt Kits
ARP 18-20 Ford Coyote 5.0L V8 CA625+ Head Stud Kit
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ARP

ARP Ford 3.5L V6 Ecoboost/Cyclone Main Stud Kit

$347.45
ARP253-5802
ARP Engine Components Main Stud & Bolt Kits
ARP Ford 3.5L V6 Ecoboost/Cyclone Main Stud Kit
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