A-VTK3029D-AI Valve Train Kit (Std)One New Aftermarket Replacement Valve Train Kit Fits John Deere 3029D 3029T Engine This standard size valve train kit is designed for the Fits John Deere 3029D and 3029T 2. 9L 3 cylinder diesel engine. The kit supplies the core cylinder head valve train components needed during a top end engine rebuild or valve job, restoring proper compression, combustion efficiency, and engine performance to Fits John Deere tractors equipped with this engine family.