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RIVA Yamaha 1.8L Crankcase Main Stud Kit

<-- Order Now - Ships Late September

Our ultra high-strength Crankcase Main Stud Kit is essential equipment when upgrading internal components on your high-boost Yamaha engine. Precision-machined from premium grade 8740 alloy and heat treated to exacting tolerances, these studs dramatically increase reliability & ease of maintenance.

For use with Yamaha 1.8L Engines

Key Features:
  • Superior material & heat treat process provide 10X better fatigue strength than OEM bolts.
  • Studs provide improved alignment of crankshaft for increased reliability and ease of maintenance.
  • More accurate & consistent torque loading provides a more uniform clamping force on crankshaft.
Pricing: $214.95
Free Shipping (Continental USA Only)


  • RY10840-CMSK-1LB
  • RY10840-CMSK-1LB
  • RIVA Racing
  • New

Shipping Information

  • Item Requires Shipping
  • 2.0 lbs.
  • W5.0000” x H3.0000” x L5.0000”
  • Free Shipping (Continental USA Only)