Rear Crankshaft Seal Pair for David Brown 900, 1200, 700, 800, 90, and 94 Series Tractors

Description

When you start seeing oil spots under your David Brown’s engine or notice that familiar drip near the back of the motor, chances are it’s time to replace those rear crankshaft seals. These little seals work hard to keep your engine oil where it belongs, and when they fail, you’re not just losing oil—you could be looking at bearing damage down the road. This pair of replacement seals gets your trusty David Brown sealed up tight and ready for the long haul.

What You’re Getting

• Set of 2 rear crankshaft seals designed specifically for David Brown engines
• Built to handle the constant temperature changes from summer heat to winter cold, plus the vibration and dust that’s part of farm life
• Quality materials that maintain proper seal pressure even as they wear in over time
• Direct replacement design that fits just like the originals

Built for Real Farm Work

These seals fit a wide range of David Brown tractors from the smaller 770 and 780 models perfect for farmyard work, up through the powerful 1390 and 1490 tractors used for heavy tillage and large-scale operations. Whether you’re running a 990 for hay operations, using a 1200 for cultivation work, or depending on a bigger model for serious field work, these engines need proper sealing to keep performing season after season.

Made to Last

Farm engines face challenges that regular automotive seals just can’t handle—constant vibration from field work, thermal cycling from varying loads, and exposure to dust, moisture, and chemicals. These seals use materials specifically chosen for agricultural conditions, staying flexible in cold weather while resisting breakdown from hot engine oil exposure.

Good to Know

Installing rear crankshaft seals typically requires some engine disassembly, so plan for several hours of work and consider having a service manual handy. Clean the seal surfaces thoroughly before installation to prevent leaks, and check that the crankshaft surface isn’t scored or damaged. If you’re doing the work yourself, take your time—a properly installed seal will keep your David Brown running leak-free for years to come.