When you’re staring at compression loss, coolant mixing with oil, or white smoke billowing from the exhaust, there’s a good chance your upper gaskets have given up the fight. The Case A504BD turbocharged diesel doesn’t mess around—it’s a hardworking 6-cylinder that powers through tough conditions, but all that heat and pressure takes its toll on seals and gaskets over time.
What You’re Getting
- Complete upper gasket set with everything you need for the top end rebuild
- Quality TISCO construction that stands up to turbo heat and diesel combustion pressures
- Precision-cut gaskets that seal properly the first time without leaks
- Direct fit for A504BD engines with serial numbers 2539000 and up
Built for Real Farm Work
The A504BD engine was built for Case’s bigger row-crop and utility tractors that handle serious fieldwork—plowing, disking, and pulling heavy implements through tough soil conditions. These are the machines that run long days during planting and harvest, and the upper gasket set needs to handle that kind of sustained operation.
Made to Last
TISCO knows what it takes to seal a turbocharged diesel engine. The gaskets in this set are designed to handle the extra heat that turbocharging creates while maintaining a tight seal against combustion pressures and coolant flow. Quality materials and precise manufacturing mean you’re not doing this job twice.
Good to Know
This is a top-end rebuild job that requires pulling the head, so plan on having the machine down for a while. It’s also a good time to check valve clearances and inspect the head for cracks or warping. Make sure you have fresh coolant and oil ready for when you fire it back up.
