1: Perfect Fitment: Chain roller tensioner is replacement for Polaris RZR 170 20092013, perfect matching, have a long service time. 2: Replace OEM Part Number: The OEM number of heavy duty chain roller tensioner is 0452954 and 0451686, according to original standard. 3: High Quality Material: Chain tensioner is made of high quality ABS and metal material, not easy to deform, rustproof, sturdy and durable. 4: Professional Design: Professional manufacturing, exquisite workmanship, can prevent the chain from derailing and excessive wear of the sprocket. 5: Easy Installation: Easy to install, protects swing arm and helps guide chain correctly, direct replacement for the old or broken one, convenient for using. This is a 1 or 4" NPT 45tyre inflator valve connector. It is a solid steel chuck, precision machined for leak-free performance. It features a built-in shutoff valve and 45 degree head for easier connection. Ball foot tire chuck is ideal for tire inflation of various tires. It's really a practical and useful product. Features: 1. Solid steel construction, high strength, high performance and high reliability. 2. Built-in shutoff valve, 45 degree head, for easier connection. 3. Ball foot tire chuck is ideal for tire inflation of various tires. 4. 1 or 4-inch NPT female threads. 5. Easy fit to valve for easy installation. Specifications: Material: Steel Color: Silver Size: 3.3 x 2cm or 1.3" x 0.79" Diameter: 1.8cm or 0.71" Type: 1 or 4" NPT Head Degree: 45 Package Weight: 33g Package Included: 1 x Tire Inflator Compressor Valve Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 3018. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1 x Chain Tensioner1 x Spring Please double check the part number of your item, matching information is for reference only. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.