DRAG SPECIALTIES Derby Torx Bolt Kit - Big Twin MK675

Custom engine builds demand hardware that matches your precision and vision—stock bolts simply won't cut it. DRAG SPECIALTIES Derby Torx Bolt Kits give you OEM-quality, Made-in-the-USA fasteners in complete motor sets, eliminating the guesswork and multiple supplier headaches. Whether you're rebuilding a Big Twin or Sportster, these comprehensive kits ensure every critical fastening point—from primary covers to rocker boxes—is spec'd correctly and ready to secure.

• Socket-head Torx bolts
• MPN: 2401-0768
• Made in U.S.A.
• Big Twin 07+ coverage
• Includes: primary, cam, cam sensor, derby, rocker box, transmission top, transmission side, lifter block, clutch covers
• Big Twin 87–94 coverage
• Includes: cam, primary, point, clutch, inspection, chain covers, lifter base, inner primary, motor mounts, timing plug, header mount screws
• XL 04+ coverage
• Includes: primary, cam, derby, lifter block, points cover, rocker box, engine case
• XL 86–03 coverage
• Includes: cam, primary, generator, sprocket, rocker box, motor mount, lifter base, point/magneto cover
• Bolt-on installation
• Complete motor sets