Description

When you notice oil drips under your tractor or catch the smell of burning oil on hot engine parts, it’s usually that rear crankshaft seal telling you it’s time for retirement. A leaking rear main seal doesn’t just waste expensive engine oil—it can contaminate your clutch disc, make the area around your transmission messy, and eventually lead to bigger problems if ignored.

What You’re Getting

Precision-molded seal with the exact 3.63″ x 4.38″ x 0.7″ dimensions for a perfect fit
Oil-resistant material that handles the heat and pressure cycles of diesel engines
Direct replacement that installs in the same housing as your original seal
Quality construction designed to last through years of field work

Built for Real Farm Work

This seal fits a wide range of Case IH tractors from the smaller B-series utility models up to the 44-series row-crop machines. Whether you’re running a B275 around the farmyard, pushing snow with a 414, or pulling a disc with a 444, these tractors all share similar engine designs that rely on this critical seal to keep oil where it belongs.

Made to Last

Engine seals take a beating from constant heat, pressure changes, and the vibration that comes with agricultural work. This replacement uses quality materials that maintain their flexibility and sealing properties even after thousands of hours of operation. It’s built to handle everything from cold morning starts to long days in dusty fields.

Good to Know

Replacing the rear main seal requires splitting the tractor between the engine and transmission—it’s a job best tackled when you’re already doing clutch work or other major repairs. Clean everything thoroughly during installation, and check your flywheel surface for scoring while you’re in there. A little extra time spent on prep work now saves you from having to tear it all apart again later.