When you're working on a front axle drive shaft and that little circlip goes flying across the shop floor, you know the importance of having this small but critical part on hand. This M40 internal circlip sits inside the drive shaft assembly and keeps everything positioned properly—without it, your front-wheel drive isn't going anywhere, and you'll be looking at expensive component damage. Key Features Precision-sized M40 diameter ensures proper fit in the shaft groove Heat-treated steel construction resists fatigue from constant expansion and compression cycles Spring-tempered design maintains consistent grip pressure on the shaft Direct replacement part that restores factory specifications Built for Real Farm Work This circlip is designed for the demanding front axle systems found on utility and row-crop tractors from 85 to 270 horsepower. Whether you're pulling implements through tough soil conditions or handling loader work that puts stress on the front drive system, this circlip handles the loads that come with serious farming. Made to Last Front axle components work hard, cycling through thousands of rotations under varying loads and temperatures. This circlip is manufactured from quality steel with the right balance of hardness and flexibility to maintain its grip without becoming brittle or losing tension over time. Good to Know This circlip is part of a complete drive shaft service kit. If you're rebuilding the whole assembly, consider ordering the full kit to have all the seals, bearings, and hardware you'll need. A circlip removal tool makes installation much easier and prevents the frustration of trying to compress it by hand in tight quarters.