Prox Steel Exhaust Valve conversion kitRef : PRO00516A / 1004723

PROX Steel Exhaust Valve Conversion Kit — manufacturer reference 28.SES2424-1. Specifically designed for 450 Yamaha engines, this kit allows for the replacement or conversion of the exhaust valve components of YZF/WRF to restore the cylinder head after wear or service. Ideal for workshops and riders who maintain their engine after hours on the track or extensive off-road riding.

The part is made of steel, a material suitable for the thermal and mechanical stresses encountered at the exhaust. This kit is aimed at motocross enthusiasts and quad riders seeking a reliable replacement of valve components without compromising engine assembly.

• Brand: PROX
• Reference: 28.SES2424-1
• Usage: replacement / conversion of exhaust valve for Yamaha 450 engines
• Universe: Quad, Motocross
• Compatibility (examples): YAMAHA YFZ 450 R SPECIAL EDITION 2WD (2021), GAS GAS EC 450 F (2015), YAMAHA YFZ 450 R 2WD (2021)

Installation tips: installation recommended by a qualified mechanic. Check valve clearance and timing after replacement to ensure safe and durable engine operation. Practical spare part for reconditioning the engine head before a competition season or after intensive use.