This genuine Yanmar 12910042121 thrust plate is an essential internal engine component designed for 3TNV88 and 4TNV88 series diesel engines. It ensures proper crankshaft end play and reduces wear, critical for engine longevity and performance. This OEM part is also compatible with various Case IH Farmall B series, New Holland Boomer series, and Massey Ferguson 3700 series tractors that utilize these Yanmar engines, ensuring reliable fit and function.