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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 1/2-13 x 1.250 12pt SS bolts (5/pkg) Quick View
ARP

ARP 1/2-13 x 1.250 12pt SS bolts (5/pkg)

$32.26
ARP656-1250
ARP Bolts Engine Components Hardware Kits - Other Under 100
ARP 1/2-13 x 1.250 12pt SS bolts (5/pkg)
ARP 3/8-16 x 5.000 12pt Black Oxide Bolts Quick View
ARP

ARP 3/8-16 x 5.000 12pt Black Oxide Bolts

$25.32
ARP642-5000
ARP Bolts Engine Components Main Stud & Bolt Kits Under 100
ARP 3/8-16 x 5.000 12pt Black Oxide Bolts
ARP 12pt Head / 1/2in -13 Thread / 1in UH Length Kit- Black Oxide Quick View
ARP

ARP 12pt Head / 1/2in -13 Thread / 1in UH Length Kit- Black Oxide

$18.18
ARP627-1000
ARP Bolts Engine Components Head Stud & Bolt Kits Under 100
ARP 12pt Head / 1/2in -13 Thread / 1in UH Length Kit- Black Oxide
ARP Ford 351C w/Edelbrock RPM Air Gap 12pt Intake Manifold Bolt Kit Quick View
ARP

ARP Ford 351C w/Edelbrock RPM Air Gap 12pt Intake Manifold Bolt Kit

$65.57
ARP454-2106
ARP Engine Components Hardware Kits - Other Under 100
ARP Ford 351C w/Edelbrock RPM Air Gap 12pt Intake Manifold Bolt Kit
ARP M10 X 1.0 SS 12pt Stainless Steel Nut Kit Quick View
ARP

ARP M10 X 1.0 SS 12pt Stainless Steel Nut Kit

$61.10
ARP401-8351
ARP Engine Components Hardware Kits - Other Under 100
ARP M10 X 1.0 SS 12pt Stainless Steel Nut Kit
ARP Ford 351/400M Wave Lock Rod Bolt Kit - 2pcs Quick View
ARP

ARP Ford 351/400M Wave Lock Rod Bolt Kit - 2pcs

$12.21
ARP154-6421
ARP Engine Components Rod Bolt Kits Under 100
ARP Ford 351/400M Wave Lock Rod Bolt Kit - 2pcs
Quick View
ARP

ARP M12 1.50 x 80mm UHL Hex Bolt

$4.34
ARPHM14AU80-5
ARP Engine Components Hardware - Singles Under 100
ARP M12 1.50 x 80mm UHL Hex Bolt
Quick View
ARP

ARP 1/4-20 12pt Nut Kit

$1.64
ARP301-8300
ARP Engine Components Hardware Kits - Other Under 100
ARP 1/4-20 12pt Nut Kit
Quick View
ARP

ARP BMW B48 4 cyl undercut ARP2000 12pt Head Stud Kit

$263.52
ARP201-4704
ARP Engine Components Head Stud & Bolt Kits
ARP BMW B48 4 cyl undercut ARP2000 12pt Head Stud Kit
Quick View
ARP

ARP BMW M48 U/C CA625+ 12pt Head Stud Kit

$588.31
ARP401-4704
ARP Engine Components Head Stud & Bolt Kits
ARP BMW M48 U/C CA625+ 12pt Head Stud Kit
Quick View
ARP

ARP 5/16-18 12pt Nut Kit

$1.69
ARP301-8303
ARP Engine Components Hardware Kits - Other Under 100
ARP 5/16-18 12pt Nut Kit
ARP 5/16-18 x 3.250 12pt Stainless Steel SAE Bolt Kit Quick View
ARP

ARP 5/16-18 x 3.250 12pt Stainless Steel SAE Bolt Kit

$25.04
ARP612-3250
ARP Bolts Engine Components Head Stud & Bolt Kits Under 100
ARP 5/16-18 x 3.250 12pt Stainless Steel SAE Bolt Kit
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