If you've worked on Ford 40 series or TS tractors with dual power transmissions, you know how important the little sealing parts can be. This O-ring might look simple, but it's one of those critical pieces that keeps hydraulic fluid where it belongs and prevents contamination from getting into your dual power system. When these start to leak, you'll notice it quickly—and so will your hydraulic fluid bill. What You're Getting Precise fit designed specifically for Ford 40 series and TS dual power systems High-quality rubber compound that handles hydraulic pressure and temperature swings Direct replacement that seals properly without modifications or adapters Sold in convenient 5-pack—handy since these tractors use multiple rings Built for Dual Power Work This O-ring is engineered for the Ford 40 series tractors (like your 5640, 6640, 7740, 7840, 8240, and 8340) and TS series models (TS80, TS90, TS100, TS110, TS115) equipped with dual power transmissions. These are serious work tractors that handle everything from field cultivation to heavy loader work, and their dual power systems need reliable sealing to shift smoothly under load. Made to Last Farm hydraulics put O-rings through the wringer with pressure spikes, temperature changes, and constant cycling. This ring is built with materials that resist the breakdown that kills cheaper seals, keeping your dual power system sealed and shifting properly season after season. Installation Notes Clean the O-ring groove thoroughly before installation—any dirt or debris will cause premature failure. A light coating of clean hydraulic fluid helps the ring slide into place without nicking or twisting. Keep spares on hand since dual power repairs often reveal other seals that need attention while you've got everything apart.
When you're heading out to the field and your tractor's Dual Power transmission starts acting up—slipping, not shifting right, or leaking hydraulic fluid—you need more than just a quick fix. This complete repair kit has everything you need to get your Ford New Holland 40 series back to running like it should, with all the seals, gaskets, and O-rings to rebuild the Dual Power system properly. What You're Getting Complete seal package including all gaskets, O-rings, and sealing components for thorough transmission service High-quality materials that handle the pressure and temperature changes your transmission puts them through Works with both early and late type Dual Power transmissions so you don't have to guess about compatibility Designed to original specifications—fits right the first time without modifications Saves you from hunting down individual parts and gives you everything in one convenient kit Built for Real Farm Work Your Ford New Holland 40 series tractor—whether it's a 5640 utility model or a big 8340 row-crop machine—depends on that Dual Power system for smooth on-the-go shifting. When you're pulling a planter through tough ground or running a loader all day, being able to shift between high and low ranges without stopping keeps you productive and the work moving. Made to Last These sealing components are built to handle the 240-260 PSI operating pressure that makes the Dual Power system work. The materials resist oil breakdown and temperature extremes, so they'll keep sealing properly through long seasons of hard use. Installation Notes This is a transmission-apart job that's best left to someone who knows their way around a Dual Power system. Make sure to clean all the mating surfaces thoroughly and use fresh transmission fluid when you put it back together. Proper bleeding of the hydraulic system after installation is critical for smooth operation.
