This is a Brand New Premium Quality Major Engine Overhaul Kit. It is for rebuilding the original Cummins QSC 8.3 Piston # 2106 /3446 Diesel Engine. Please check Engine CPL Number. Cummins CPL #’s: 2092, 2230, 2231, 2232, 2233, 2234, 2235, 2236, 2237, 2241, 2299, 2688, 2689, 2690, 2691, 2692, 2693, 2694, 2964, 8088, 8153, 8203, 8578. Dynapac: ASHPALT PAVER: F30CE. Wirtgen: COLD PLANER: W120F. Wirtgen: COLD PLANER: W130F. Case IH: TRACTOR: MX240. Case IH: TRACTOR: MX255. Case IH: TRACTOR: MX270. New Holland: TRACTOR: TG255. New Holland: TRACTOR: TJ275. Included in this kit. 6 x Piston Ring Liner Cylinder Kit. 1 x Main Bearing Set. 1 x Connecting Rod Bearing Set. 1 x Front Crankshaft Seal. 1 x Rear Crankshaft Seal. 6 x Connecting Rod Bushing. 7 x Camshaft Bushing. 1 x Top Gasket Set. 1 x Bottom Gasket Set. Diesel – Turbo Charged. Bore: 4.484 / 114mm. Stroke: 5.31 / 135mm. Piston Marked: 2106, 3446. TractorPartsDirect carries a full line of tractor parts and accessories. When it comes to selecting a supplier for engine kits, it is crucial not to settle for anything but the best. At TractorPartsDirect, we pride ourselves on offering engine kits that are unmatched in quality. We collaborate with reputable suppliers, many of whom also cater to original equipment manufacturers. Our cylinder components are meticulously manufactured to meet OEM specifications, ensuring that they effectively rejuvenate worn-out engines. Our products are capable of maintaining high performance standards for many years to come. Our commitment to excellence is reflected in our heavy-duty permanent mold pistons. These pistons are cast with ni-resist inserts that are bonded into the top or both the top and second ring grooves, ensuring optimal durability and performance. Our engine kit suppliers employ metallurgical expertise and incorporate high nickel content iron inserts into our pistons, effectively extending their lifespan by minimizing groove wear. The careful adherence to close tolerance ring groove specifications eliminates the risk of blow-by, guaranteeing optimal power output. Our liner packing is molded using cutting-edge compounds like Viton, which retains its pliability and resilience. Additionally, our piston rings, gasket and bearings are crafted from superior materials, ensuring trouble-free installation and reliable performance. At TractorPartsDirect, we take pride in offering engine products that embody the cutting-edge advancements in manufacturing technology. Our engine kit suppliers are dedicated to perpetually enhancing their processes, driving the development of innovative CAD/CAM designs and implementing state-of-the-art CNC manufacturing techniques. As a result, we deliver a range of superior, high-quality products to our customers. OHCUQSC8.3P2106/3446-L(L9.212/OD5.152)-M.