Description

When your old tractor starts burning oil or you notice blue smoke coming from the exhaust, worn valve guides are often the culprit. These precision-machined guides keep your intake and exhaust valves aligned and sealed properly, which means better compression, cleaner burning, and more reliable power when you need it most.

What You’re Getting

Precision-machined guides that maintain proper valve alignment for optimal sealing
Cast iron construction that handles the heat and stress of diesel engine operation
Direct replacement design – no modifications needed for installation
TISCO quality that meets or exceeds original specifications
Single guide fits both intake and exhaust applications in your AD3-152 engine

Built for Real Farm Work

This valve guide is designed for the reliable Perkins AD3-152 three-cylinder diesel engine found in many Ford tractors and other agricultural equipment. The AD3-152 has been a workhorse engine for decades, powering everything from utility tractors to compact farm equipment. Whether you’re running a loader, cultivating fields, or handling daily farm chores, this engine’s known for its durability and fuel efficiency.

Made to Last

These guides are built to handle the constant heat cycling and valve impacts that come with diesel engine operation. The cast iron construction provides excellent wear resistance and thermal stability, so they’ll maintain proper clearances season after season. Each guide is precision-machined to ensure smooth valve operation and proper oil control.

Installation Notes

Your AD3-152 uses 6 guides total – 3 intake and 3 exhaust. Professional installation is recommended since the guides need to be pressed in with proper alignment and the correct interference fit. Have your machine shop check valve stem clearances after installation to ensure everything’s within spec. A good time to replace guides is during a cylinder head rebuild when you’re already doing valves and seats.