HOT START PLUNGER KIT ALL BALLS 46-2003 YAMAHA 03-13 WR YZ 250 450 F

The All Balls Hot Start Plunger Kit (46-2003) is a direct replacement assembly for the hot start circuit on select Yamaha four-stroke off-road models. Designed for precise fit in Keihin FCR/FCR-MX carburettors, it provides the key components required to restore proper hot start function and address hard-starting or seized plunger issues.

Features

• Direct OEM replacement as a fraction of the cost.


• CNC machined for precise fitment and shape.


• Meets or exceeds OEM standards.


• Contains all the components needed for rebuilding choke plunger.


• ALLBALLS products are a high quality replacement part and carries our guarantee of your satisfaction.

Specifications

• Manufacturer: All Balls Racing


• Manufacturer Part Number: 46-2003


• Alternative/Stock Reference: Part No. 18-7257.AB


• Kit contents (may vary by model): plunger, O-rings, seals/gaskets, spring, screws, retaining nut, boots and cable guide where required


• Elastomer material: NBR (nitrile) for O-rings and rubber gaskets, compatible with ethanol-blended fuels

Cross-Reference OEM Part Numbers

• Yamaha 5TA-14371-00-00 (Plunger, Starter)


• Yamaha 5TA-14335-00-00 (Spring, Plunger)


• Yamaha 5TA-14155-00-00 (Seal)


• Yamaha 5TA-14374-00-00 (Nut/Retainer)


• Yamaha 5TA-14997-00-00 (Seal)

Vehicle Fitments

• Yamaha WR250F: 2003–2014


• Yamaha WR450F: 2003–2011


• Yamaha YZ250F: 2003–2013


• Yamaha YZ450F: 2003–2009