KPMI, exhaust valve guide. Cast iron. +.001"

Cast iron offers maximum durability and wear resistance which is perfect for long distance touring applications. It is the standard since the invention of the piston engine. Note: Standard non-oversize dimensions (for reference only) are 0.5620" O.D. (14.27mm); 0.2750" I.D. (6.99mm); 2.02" OAL (51.31mm).

Fits: > 05-17 (NU) Twin Cam A/B; 04-20 XL Sportster; 08-12 (NU) XR1200; 03-10 (NU) Buell XB