KPMI Cylinder Head Nuts - Yamaha YFZ450R / Honda TRX450ER
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
✓ Fits
Yamaha: 2009-2020 YFZ450R
Honda: 2006-2009 and 2012-2014 TRX450ER Electric Start (Honda skipped the 2010-2011 model years)
✓ Features
- High performance replacement cylinder head nuts from Kibblewhite Precision Machining (KPMI)
- Precision machined for consistent, accurate torque on your head studs
- The right companion hardware for KPMI's premium 8740 chromoly head studs, which use 180,000 psi yield strength heat treated material with rolled threads for maximum fatigue life
- Cheap insurance on any top end job, fresh nuts torque true
✓ What's Included
- Cylinder head nut set (KPMI 41010-4)
Doing the YFZ450R top end? Pair with our Hot Cams cam kits and the FMF Factory 4.1 RCT system.
Ships fast from DuneGoonShop!
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
