10 Best Automotive Replacement Engine Main Bolts & Studs

List Updated February 2020

Bestselling Automotive Replacement Engine Main Bolts & Studs in 2020


ARP 1545604 Four-Bolt Main Stud Kit

ARP 1545604 Four-Bolt Main Stud Kit
BESTSELLER NO. 1 in 2020
  • Includes a hardened washer and high-strength hex nut
  • Features a wide area flanged head
  • Offers a tensile-strength rating of 190,000 psi
  • Features a precision centerless-ground
  • Thread-rolled to Mil-S-8879 specs

ARP 124-5401 Main Stud Kit

ARP 124-5401 Main Stud Kit
BESTSELLER NO. 2 in 2020
  • ARP

Subaru Block Main Case Bolts Seals EJ205 EJ257 Turbo OEM Impreza Sti Wrx & EJ253

Subaru Block Main Case Bolts Seals EJ205 EJ257 Turbo OEM Impreza Sti Wrx & EJ253
BESTSELLER NO. 3 in 2020
  • SUBARU Block Bolts WASHERS AND Main Bolts Washers
  • 1995-2014 Outback and Legacy and Baja Turbo and Non turbo
  • 1993-2014 Impreza & WRX & STI Turbo and Non turbo
  • 1998-2013 Forester Turbo and Non Turbo
  • EJ205 EJ207 EJ255 EJ257 EJ25D 2.0 2.5 DOHC

ARP 134-5002 SBC MAIN BOLT KIT - FITS

ARP 134-5002 SBC MAIN BOLT KIT - FITS
BESTSELLER NO. 4 in 2020

ARP 651-5000 Black Oxide 5/16-18" RH Thread 5.000" UHL 6-Point Bolt with 3/8" Socket and Washer, (Set of 5)

ARP 651-5000 Black Oxide 5/16-18
BESTSELLER NO. 5 in 2020
  • Fasteners Hex Bolts

Milodon 83001 Engine Bolt Kit for Small Block Chevy

Milodon 83001 Engine Bolt Kit for Small Block Chevy
BESTSELLER NO. 6 in 2020
  • Have serrated washer faces to resist loosening
  • Grade 8 bolts
  • Include a heavy duty washer and locking washer

Subaru Block Main Bolts Case Kit EJ205 EJ257 Turbo OEM Impreza Sti Wrx & EJ253 +

Subaru Block Main Bolts Case Kit EJ205 EJ257 Turbo OEM Impreza Sti Wrx & EJ253 +
BESTSELLER NO. 7 in 2020
  • Genuine Oem Subaru Sealed items
  • Case half bolts 800610010 x2 (A61001 in picture)(10x106x30)
  • Case half bolts 800210990 x8 (A21099 in picture)(10x158x30)
  • Case half bolts 808208960 x6 (A70862 in picture)(8x65x20)
  • Case half bolt 800706500 x1 (A7065 in picture)(6x26x20)Case half bolt 800708630 x1 (A70863 in picture)(8x85x20)

ARP 230-7003 2307003 Oil Pump Stud Kit

ARP  230-7003  2307003 Oil Pump Stud Kit
BESTSELLER NO. 8 in 2020

ARP (154-5607) Main Stud Kit

ARP (154-5607) Main Stud Kit
BESTSELLER NO. 9 in 2020
  • FORD IRON EAGLE 351 MAIN STUD KIT

ARP 234-4317 2344317 Stud Kit

ARP  234-4317  2344317 Stud Kit
BESTSELLER NO. 10 in 2020
  • Socket Size(s) 3/8 12pt, 9/16 12pt, 1/8 Allen, 3/16 Allen

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