Features: *High-quality oil pump and worm gear: Designed specifically for the for Ryobi 40V cordless chainsaw model for RY40503 this oil pump and worm gear guarantee optimum performance and durability. *Efficient lubrication system: The oil pump ensures proper lubrication of the chainsaw s components allowing for smoother operation and extended lifespan. *Perfect fit and compatibility: Made to fit seamlessly with the for Ryobi for RY40503 chainsaw this oil pump and worm gear combo includes the necessary part numbers 537485001 and 309516002 for easy replacement. *Reliable and long-lasting: Crafted with premium materials this oil pump and worm gear set is built to withstand heavy use and deliver consistent performance over time. *Easy installation: With its precise design and compatibility installing this oil pump and worm gear is a hassle-free process allowing you to quickly get your chainsaw back in action. Specifications: *Product Name: Oil Pump & Gear *Material: No *Size: 14 *Color: No *Fitment: For Ryobi for RY40503 14 40V Cordless Chainsaw *Number of Pieces: 2 (537485001 & 309516002) Package Content: 1*Oil Pump & Gear Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.