Description
When your old Ford N tractor starts losing oil pressure or showing signs of erratic lubrication, the culprit might be a worn relief valve plunger in your oil pump. This small but critical component regulates oil pressure throughout your engine, protecting bearings and keeping everything properly lubricated. If it’s stuck open or worn out, you’ll get low pressure and poor circulation—problems that can quickly turn into expensive engine damage.
What You’re Getting
- Precision-machined plunger maintains proper oil pressure regulation
- Direct replacement that fits right into your existing oil pump assembly
- Quality TISCO construction built to handle the demands of farm work
- Restores proper oil circulation to protect engine bearings and components
Built for Real Farm Work
This plunger fits Ford 9N, 2N, and 8N tractors from 1939 to 1952—those legendary utility tractors that helped countless farmers get through the tough years and built Ford’s reputation for reliability. These machines were designed to handle everything from cultivating and plowing to belt work and general farm chores, and they needed dependable lubrication systems to keep running day after day.
Made to Last
The relief valve plunger takes constant pressure cycling as your engine runs, opening and closing to maintain proper oil pressure. This replacement is built from quality materials that resist wear and maintain proper spring tension, ensuring consistent pressure regulation even under the heat and stress of hard farm work.
Good to Know
Replacing this plunger requires removing and disassembling the oil pump, so it’s typically done as part of a complete oil pump rebuild or engine overhaul. While you’ve got the pump apart, it’s smart to inspect the pump gears, housing, and relief valve spring for wear. A fresh oil change and filter after installation ensures clean oil flows through your newly restored pump system.
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