ARP M11 X 1.25 (M13 Wr) SS 12pt Nut Kit – Set Of 10

Authorised EU Dealer ARP
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SKU: 401-8401
Ships in 4–6 weeks

90.83 Incl. VAT

  • M11 x 1.25, M13 wrench, ARP Stainless, 12pt, Nut Kit
  • Socket Size: 13mm 12pt
  • Piece Count
  • 10-Pack:
  • 401-8401
  • 76.86
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Ships in 4–6 weeks
Have a Question? Ask a Specialist

(+31) 85 303 7168 Start Live Chat

Ships to all EU Countries
Authorised Dealer

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About the brand

ARP

ARP, short for Automotive Racing Products, was founded in 1968 in Ventura, California, USA. The company manufactures high-performance fasteners — bolts, studs, nuts, and hardware — specifically engineered for high-stress engine and drivetrain applications in racing and high-performance road use.

ARP fasteners are made from proprietary alloys including ARP2000 and L19 steel, as well as stainless and chrome-moly materials, each offering specific combinations of tensile strength, fatigue resistance, and ease of installation. Their head stud kits are among the most recognised products in the brand's range, widely used in turbocharged and high-boost engine builds where OEM head bolts are not adequate.

Beyond cylinder head hardware, ARP supplies main cap studs, rod bolts, flywheel bolts, cam gear bolts, and accessory fasteners for engines from nearly every major manufacturer. In motorsport, ARP is considered the standard for fastener reliability in built engines.

See all ARP products →
Not sure this fits your car?

Talk to a real motorsport specialist.

EU-based, motorsport-experienced. We'll walk through your application before you buy.

Description

  • M11 x 1.25, M13 wrench, ARP Stainless, 12pt, Nut Kit
  • Socket Size: 13mm 12pt
  • Piece Count
  • 10-Pack:
  • 401-8401
  • 76.86

Additional information

Part Number

401-8401

Socket Size

13mm

Thread

M11 x 1.25

Head Type

12 Point

Manufacturer

ARP

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About the brand

ARP

ARP, short for Automotive Racing Products, was founded in 1968 in Ventura, California, USA. The company manufactures high-performance fasteners — bolts, studs, nuts, and hardware — specifically engineered for high-stress engine and drivetrain applications in racing and high-performance road use.

ARP fasteners are made from proprietary alloys including ARP2000 and L19 steel, as well as stainless and chrome-moly materials, each offering specific combinations of tensile strength, fatigue resistance, and ease of installation. Their head stud kits are among the most recognised products in the brand's range, widely used in turbocharged and high-boost engine builds where OEM head bolts are not adequate.

Beyond cylinder head hardware, ARP supplies main cap studs, rod bolts, flywheel bolts, cam gear bolts, and accessory fasteners for engines from nearly every major manufacturer. In motorsport, ARP is considered the standard for fastener reliability in built engines.

See all ARP products →
Not sure this fits your car?

Talk to a real motorsport specialist.

EU-based, motorsport-experienced. We'll walk through your application before you buy.