Introductions: Welcome to our site! We are glad to give you a recommendation of this Go Kart Torque Converter Kit 1" 10T 40/41/420. This kit is made of high quality iron and aluminum, which is sturdy and durable. It fits all engines with 1 inch straight crankshaft and its suitable for Go Karts 30 series. With its high quality and fine workmanship, we believe that it won't let you down. So don't hesitate, just have a try! Features: 1. Made of high quality iron and aluminum, sturdy and durable 2. Fit all engines with 1 inch straight crankshaft 3. Suitable for Go Karts 30 series 4. High quality and fine workmanship 5. Easy to use Specifications: 1. Material: Iron & Aluminum 2. Package Dimensions: (13.78 x 13.78 x 7.48)" / (35 x 35 x 19)cm (L x W x H) 3. Weight: 11.24 lbs / 5.1 kg 4. Fits: All engines with a 1 inch straight crankshaft 5. 1 Sprocket Includes: 1 x 10 Tooth Sprocket for #40/41 Chain 6. Fitment: Go Karts 30 Series Package Includes: 1 x Go Kart Torque Converter Kit Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.