The 3TN66-UJ 3TN66L 3TN66E Overhaul Rebuild Kit is an aftermarket engine overhaul kit specifically designed for Yanmar engines found in excavators, skid steer loaders, and tractors. Made in China, this unit is compatible with Yanmar engines and includes all necessary parts for a complete engine rebuild. This kit is ideal for businesses and industrial equipment owners looking to repair or upgrade their diesel engine with high-quality replacement parts.