VALVE GUIDE EXHAUST BRONZE STD, KIBBLEWHITE 40-40120, KAWASAKI KX250F 07-12

This standard valve guide is made from C674 manganese bronze and is designed for intake and exhaust applications on Kawasaki KX250F models. It is recommended for intake use on 2004–2006 models and for exhaust use on all 2004–2016 models. Engineered for ease of machining, this guide is suitable for builders using manual or electric tools, offering a cost-effective alternative while maintaining precise tolerances.

Features

• Made from C674 manganese bronze

• Designed for intake (2004–2006) and exhaust (2004–2016) applications

• Standard guide diameter: 0.3765″

• Easier to ream and hone compared to C630 bronze

• Maintains precise KPMI® manufacturing tolerances

Specifications

• A: 0.440″ (11.18 mm)

• B: 0.465″ (11.81 mm)

• C: 0.650″ (16.51 mm)

• D: 0.760″ (19.30 mm)

• E: 0.410″ (10.41 mm)

• F: 0.1760″ (4.47 mm)

• G: 0.3765″ (9.56 mm)

Cross-Reference OEM Part Numbers

• Kibblewhite #40-40120

Vehicle Fitments

• Kawasaki KX250F 2004–2006 (Intake only)

• Kawasaki KX250F 2004–2016 (Exhaust only)