Description

When you’re deep into engine work on your Deutz tractor, the small parts matter just as much as the big ones. If you’ve got the head off and valves apart, those little valve cotters – sometimes called keepers – are what lock everything together properly. These split-taper locks secure the valve spring retainers to the valve stems, and without them working right, your valves won’t seal and your engine won’t run.

What You’re Getting

Precision-machined split taper design that locks securely onto valve stems
Proper hardness and spring tension to stay in place under engine vibration
Exact dimensions match original Deutz specifications for reliable fit
Sold individually so you can replace just what you need during valve service

Built for Real Farm Work

These cotters fit a wide range of Deutz tractors from the compact Agrocompact utility models up through the full-size 06 and 07 series field tractors. Whether you’re running a DX4.30 around the farmyard, working with an Agroprima 6.16 on hay ground, or putting long hours on a 6807 in row crops, these are the same cotters that keep your valves properly positioned.

Made to Last

Engine valve cotters take a beating from constant spring pressure, heat cycles, and vibration. These replacements are made from quality steel with the right hardness to grip the valve stem grooves securely without cracking or losing tension over time.

Good to Know

Always replace valve cotters as a complete set when doing valve work – mixing old and new parts can cause uneven valve operation. Use a proper valve spring compressor when installing to avoid launching these small parts across the shop. Pro tip: a dab of assembly grease helps hold them in place while you release the spring compressor.