Description

When you spot oil leaking from the front of your tractor’s engine, it’s usually this timing cover seal that’s given up the ghost. A failing seal doesn’t just make a mess—it can starve critical engine components of oil and lead to expensive damage if you don’t catch it in time. This replacement seal keeps oil where it belongs and gets your David Brown back to reliable service.

What You’re Getting

Precise 52.5mm x 73mm x 9.5mm dimensions for exact OEM fit
Double-lip design creates superior seal compared to single-lip seals
Spring-loaded lip maintains proper contact pressure as engine vibration occurs
Heat and oil resistant compound withstands temperature cycles from winter starts to hard summer work

Built for Real Farm Work

This seal works across the entire David Brown line from the compact 770 utility tractors up through the powerful 1694 row-crop machines. Whether you’re running a 3-cylinder 770 for orchard work or a 6-cylinder 1690 for heavy tillage, David Brown used this same seal size throughout their 700-1400 series tractors. It’s one of the most common service items for these reliable workhorses.

Made to Last

The rubber compound in this seal is formulated specifically for crankshaft applications where constant rotation and oil exposure would destroy generic seals. The spring-loaded lip adjusts automatically as normal wear occurs, maintaining a proper seal even as your engine accumulates hours. Quality construction means this seal typically outlasts several oil changes when properly installed.

Installation Notes

Take your time when replacing this seal—rushing the job often leads to leaks later. Clean the timing cover housing thoroughly and inspect the crankshaft surface for any grooves or rough spots that could damage the new seal. Install it square and to the correct depth, then coat the sealing lip with a thin film of oil before starting the engine to prevent dry-run damage.