OVER 10,000 OPTIONS: Carburetor kits fit both OLD and NEW models of lawn mowers, petrol cutters, trimmers, motorcycles, ATVs, cars, and agricultural machinery of most types. Check our STORE to find everything in one place. COMPATIBLE: This carb rebuild kit is intended for: RX-1 ER LE Mountain 2003-2005 KIT INCLUDES: all necessary gaskets, O-Rings float valve and jets. THIS is NOT an OEM PART: Quality Aftermarket Carburetor Kit MAXIMUM ENGINE LIFE: Our dependable, reliable carburetors and carburetor kits will help keep your engines and power equipment running at their best for years to come. This means you save time and money on repairs and get outstanding performance from your equipment with minimal downtime and productivity loss.