Brake Master Cylinder for Massey Ferguson 300 Series Tractors – Carlisle Version

Description

If your brake pedal’s feeling spongy or you’re noticing fluid spots under your tractor, it’s time to get serious about your master cylinder. When your brakes start feeling spongy or you notice green fluid dripping from the master cylinder, it’s time for a replacement. This Carlisle-manufactured master cylinder brings back that firm pedal feel and reliable stopping power you need when hauling heavy loads or working on steep ground.

What You’re Getting

• Direct factory replacement that bolts right into your 300 series—no modifications needed
• Carlisle quality construction that’s been trusted on farms for decades
• Proper bore size maintains that factory-spec brake pressure and pedal feel
• Built for the right fluid type—this one works with standard brake fluid systems
• Works with repair kit 65040 when rebuild time comes around

Built for Real Farm Work

Your Massey Ferguson 300 series tractor handles serious work – from pulling loaded grain wagons to operating on steep hillsides with a round baler in tow. These tractors were built when farming meant heavy loads and long days, and reliable brakes aren’t optional. Whether you’re running a 342 with a loader, putting a 375 behind a disc, or using a 398 for heavy tillage work, you need brakes that respond the instant you need them.

Made to Last

Farm tractors put brake systems through the wringer—constant temperature changes, vibration, and heavy use. This Carlisle master cylinder uses precision-machined bores and quality seals that hold up to the punishment. This isn’t just another aftermarket part – it’s manufactured to meet the same specifications as your original Massey Ferguson master cylinder. The precision-machined cylinder bore ensures smooth piston movement and consistent brake pressure.

Installation Notes

Before you start, bench bleed the new master cylinder to get all the air out of the internal passages. Clean all your brake line connections thoroughly—any dirt that gets in there will cause problems down the road. After installation, bleed your entire brake system starting with the wheel farthest from the master cylinder. If your tractor’s been sitting for a while, it’s smart to check your brake hoses and wheel cylinders while you’re at it.