All Balls Accelerator Pump Rebuild Kit – YFZ450 / YZ450F / WR450F / RM-Z250 / KX250F (2003-2011)
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
✓ Fits:
- 2003-2011 Yamaha YFZ450
- 2003-2011 Yamaha YZ450F
- 2003-2011 Yamaha WR450F
✓ Features:
- Fixes throttle hesitation and bogging during acceleration
- Includes all necessary o-rings, diaphragm, spring, and screws
- Premium quality components for long-lasting reliability
- Direct OEM-style fit for quick and easy installation
- Accelerator pump diaphragm
- Mounting screws
- YFZ450: 2004–2009
✓ What's Included:
- Complete rebuild kit as specified
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
