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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 5/16-24 X 4.000 Black Hex Water Pump Pulley w/ 2.750in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 4.000 Black Hex Water Pump Pulley w/ 2.750in Fan Spacer Stud Kit

$25.00
ARP100-3213
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 4.000 Black Hex Water Pump Pulley w/ 2.750in Fan Spacer Stud Kit
ARP 5/16-24 X 3.750 Black Hex Water Pump Pulley w/ 2.500in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 3.750 Black Hex Water Pump Pulley w/ 2.500in Fan Spacer Stud Kit

$24.73
ARP100-3212
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 3.750 Black Hex Water Pump Pulley w/ 2.500in Fan Spacer Stud Kit
ARP 5/16-24 X 3.500 Black Hex Water Pump Pulley w/ 2.250in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 3.500 Black Hex Water Pump Pulley w/ 2.250in Fan Spacer Stud Kit

$23.64
ARP100-3211
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 3.500 Black Hex Water Pump Pulley w/ 2.250in Fan Spacer Stud Kit
ARP 5/16-24 X 3.250 Black Hex Water Pump Pulley w/ 2.000in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 3.250 Black Hex Water Pump Pulley w/ 2.000in Fan Spacer Stud Kit

$22.96
ARP100-3210
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 3.250 Black Hex Water Pump Pulley w/ 2.000in Fan Spacer Stud Kit
ARP 5/16-24 X 3.000 Black Hex Water Pump Pulley w/ 1.750in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 3.000 Black Hex Water Pump Pulley w/ 1.750in Fan Spacer Stud Kit

$22.29
ARP100-3209
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 3.000 Black Hex Water Pump Pulley w/ 1.750in Fan Spacer Stud Kit
ARP 5/16-24 X 2.750 Black Hex Water Pump Pulley w/ 1.500in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 2.750 Black Hex Water Pump Pulley w/ 1.500in Fan Spacer Stud Kit

$21.60
ARP100-3208
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 2.750 Black Hex Water Pump Pulley w/ 1.500in Fan Spacer Stud Kit
ARP 5/16-24 X 2.500 Black Hex Water Pump Pulley w/ 1.250in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 2.500 Black Hex Water Pump Pulley w/ 1.250in Fan Spacer Stud Kit

$20.92
ARP100-3207
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 2.500 Black Hex Water Pump Pulley w/ 1.250in Fan Spacer Stud Kit
ARP 5/16-24 X 2.250 Black Hex Water Pump Pulley w/ 1.000in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 2.250 Black Hex Water Pump Pulley w/ 1.000in Fan Spacer Stud Kit

$20.24
ARP100-3206
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 2.250 Black Hex Water Pump Pulley w/ 1.000in Fan Spacer Stud Kit
ARP 5/16-24 X 2.000 Black Hex Water Pump Pulley w/ .750in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 2.000 Black Hex Water Pump Pulley w/ .750in Fan Spacer Stud Kit

$19.57
ARP100-3205
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 2.000 Black Hex Water Pump Pulley w/ .750in Fan Spacer Stud Kit
ARP 5/16-24 X 1.750 Black Hex Water Pump Pulley w/ .500in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 1.750 Black Hex Water Pump Pulley w/ .500in Fan Spacer Stud Kit

$18.88
ARP100-3204
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 1.750 Black Hex Water Pump Pulley w/ .500in Fan Spacer Stud Kit
ARP 5/16-24 X 1.500 Black Hex Water Pump Pulley w/ .250in Fan Spacer Stud Kit Quick View
ARP

ARP 5/16-24 X 1.500 Black Hex Water Pump Pulley w/ .250in Fan Spacer Stud Kit

$18.21
ARP100-3203
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 1.500 Black Hex Water Pump Pulley w/ .250in Fan Spacer Stud Kit
ARP 5/16-24 X 1.450 Starter Nose Black Hex Water Pump Pulley Stud Kit Quick View
ARP

ARP 5/16-24 X 1.450 Starter Nose Black Hex Water Pump Pulley Stud Kit

$19.22
ARP100-3202
ARP Engine Components Hardware - Singles Hardware Kits - Other Under 100
ARP 5/16-24 X 1.450 Starter Nose Black Hex Water Pump Pulley Stud Kit
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