--- product_id: 158244869 title: "40 Series Go Kart Torque Converter Kit,COMPLETE-Bolt On Back Plate,40 Driver and Driven Pulleys,Belt,Cover,Hardware,Fits 8-18hp Motors 1\" Shaft,TC40-100 10t-12t Sprockets-Replaces 203015,203015A" brand: "bullet lines" price: "$374.71" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/158244869-40-series-go-kart-torque-converter-kit-complete-bolt-on store_origin: US region: United States of America --- # No jackshaft needed Complete bolt-on kit Fits 8-18HP go kart engines 40 Series Go Kart Torque Converter Kit,COMPLETE-Bolt On Back Plate,40 Driver and Driven Pulleys,Belt,Cover,Hardware,Fits 8-18hp Motors 1" Shaft,TC40-100 10t-12t Sprockets-Replaces 203015,203015A **Brand:** bullet lines **Price:** $374.71 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your ride with the ultimate bolt-on torque boost! ## Quick Answers - **What is this?** 40 Series Go Kart Torque Converter Kit,COMPLETE-Bolt On Back Plate,40 Driver and Driven Pulleys,Belt,Cover,Hardware,Fits 8-18hp Motors 1" Shaft,TC40-100 10t-12t Sprockets-Replaces 203015,203015A by bullet lines - **How much does it cost?** $374.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/158244869-40-series-go-kart-torque-converter-kit-complete-bolt-on) ## Best For - bullet lines enthusiasts ## Why This Product - Trusted bullet lines brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Inclusive Kit:** Includes driver & driven pulleys, belt, cover, sprockets, and hardware—everything you need to upgrade in one box. - • **Precision Performance:** Replace OEM parts 203015, 203015A, and equivalents with a heavy-duty, reliable torque converter designed for peak efficiency. - • **Customizable Belt Alignment:** Driver pulley can be reversed or spaced for perfect belt tension—tailor your setup for maximum speed and control. - • **Universal Power Compatibility:** Optimized for 8-18HP motors with 1" straight crankshaft and 1/4" keyway—one kit fits most go karts. - • **Effortless Bolt-On Installation:** Skip the hassle—integrated back plate with jackshaft means no extra parts or complex setup. ## Overview The Bullet Lines 40 Series Go Kart Torque Converter Kit is a heavy-duty, complete bolt-on solution designed for 8-18HP engines with a 1" shaft. Featuring an integrated jackshaft back plate, it eliminates the need for additional parts, streamlining installation. This kit includes all essential components—driver and driven pulleys, belt, cover, sprockets, and hardware—replacing multiple OEM part numbers for a seamless upgrade that enhances go kart performance and reliability. ## Description NO JACKSHAFT REQUIRED - Its Built into our easy to mount back plate. Bullet Lines Complete 40 Series Go Kart Torque Converter Kit. This is a complete kit that includes back plate, 40 Driver pulley, 40 Driven pulley, Cover, 40 Series Belt, 10T and 12T Sprockets, and all mounting hardware. This kit can handle 8HP - 18HP Motors with a 1' Straight Crank Shaft w/ 1/4" Keyway. This heavy duty kit is as simple as bolt on and go.Replaces OEM Part Numbers - 203015, 203015A Comet: 209133A, 209133, 209139A, 209139, 209151A, 209151 Manco: 2432 Review: Great value... exactly what i needed - Great value if you dont do.your research dont leave negative feedback due to a lack Review: It works - It has a new look. I like it ## Features - 40 Series Torque Converter Kit - Easy to install bolt on go kart torque converter kit that fits nearly all 8HP - 18HP engines. - NO JACKSHAFT REQUIRED - Includes Bullet Lines' bolt on 40 series back plate with an integrated jackshaft. - COMPLETE KIT - This is a complete 40 series torque converter kit that includes: Easy Bolt On Back Plate, 40 Series 1" Driver Pulley, 40 Series 5/8" Driven Pulley, Belt, Cover, and all installation Hardware - FITS GO KARTS - 8HP - 18HP Motors with a 1" Straight Crankshaft, and 1/4" Keyway. Replaces OEM Part Numbers 203015, 203015A; COMET - 209133A, 209133, 209139A, 209139, 209151A, 209151: MANCO - 2432 - INSTALL - Bolt-on 40 series back plate with integrated jackshaft will save you time and money. DRIVER PULLEY CAN BE INSTALLED BACKWARDS TO LINE UP BELT, but the proper way to install is to fabricate your own spacer. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07XKF2ZKH | | Brand | Bullet Lines | | Customer Reviews | 3.9 3.9 out of 5 stars (28) | | Date First Available | September 6, 2019 | | Item Weight | 27.1 pounds | | Item model number | TC40-100 | | Manufacturer | Bullet Lines | | Manufacturer Part Number | TC40-1-10t-12t | | Package Dimensions | 17.01 x 12.52 x 10.94 inches | ## Images ![40 Series Go Kart Torque Converter Kit,COMPLETE-Bolt On Back Plate,40 Driver and Driven Pulleys,Belt,Cover,Hardware,Fits 8-18hp Motors 1" Shaft,TC40-100 10t-12t Sprockets-Replaces 203015,203015A - Image 1](https://m.media-amazon.com/images/I/81GxmgWl8fL.jpg) ![40 Series Go Kart Torque Converter Kit,COMPLETE-Bolt On Back Plate,40 Driver and Driven Pulleys,Belt,Cover,Hardware,Fits 8-18hp Motors 1" Shaft,TC40-100 10t-12t Sprockets-Replaces 203015,203015A - Image 2](https://m.media-amazon.com/images/I/81n2kyFVkUL.jpg) ![40 Series Go Kart Torque Converter Kit,COMPLETE-Bolt On Back Plate,40 Driver and Driven Pulleys,Belt,Cover,Hardware,Fits 8-18hp Motors 1" Shaft,TC40-100 10t-12t Sprockets-Replaces 203015,203015A - Image 3](https://m.media-amazon.com/images/I/71GCJzsdH8L.jpg) ![40 Series Go Kart Torque Converter Kit,COMPLETE-Bolt On Back Plate,40 Driver and Driven Pulleys,Belt,Cover,Hardware,Fits 8-18hp Motors 1" Shaft,TC40-100 10t-12t Sprockets-Replaces 203015,203015A - Image 4](https://m.media-amazon.com/images/I/81kbLdrbzRL.jpg) ![40 Series Go Kart Torque Converter Kit,COMPLETE-Bolt On Back Plate,40 Driver and Driven Pulleys,Belt,Cover,Hardware,Fits 8-18hp Motors 1" Shaft,TC40-100 10t-12t Sprockets-Replaces 203015,203015A - Image 5](https://m.media-amazon.com/images/I/81Rc87OzJIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great value... exactly what i needed *by R***K on September 28, 2019* Great value if you dont do.your research dont leave negative feedback due to a lack ### ⭐⭐⭐⭐⭐ It works *by W***. on November 13, 2019* It has a new look. I like it ### ⭐⭐⭐⭐ some engineering required, not a straight bolt on. *by R***Y on December 18, 2019* No directions included. I had to reverse the Driven pulley to make it line up, which works but again, no directions. I have yet to put the rest of my project together and it will be some time. All required were there to install and shipping was timely. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/158244869-40-series-go-kart-torque-converter-kit-complete-bolt-on](https://www.desertcart.us/products/158244869-40-series-go-kart-torque-converter-kit-complete-bolt-on) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-11-05*