Description
If you’ve ever popped the rear access panel on your Massey Ferguson and found dirt or water in the transmission oil, you know how important a good oil filler cap really is. This back end oil filler cap seals up your tractor’s transmission and rear axle oil reservoir, keeping the expensive hydraulic fluid clean and where it belongs—inside your tractor, not leaking onto the shop floor.
What You’re Getting
- Solid sealing that keeps dirt, moisture, and debris out of your valuable transmission oil
- Heavy-duty construction that handles the constant vibration and temperature changes farm work dishes out
- Easy-grip design makes it simple to remove when you’re checking oil levels or doing maintenance
- Direct replacement that threads right onto your existing filler neck without any modifications
Built for Real Farm Work
These 4200, 4300, and 5300 series Massey Fergusons are serious workhorses—whether you’re running a loader, pulling a planter, or handling hay. The transmission and hydraulic systems in these tractors are sophisticated and expensive, which means they need clean oil to keep running reliably. This cap does the simple but critical job of keeping contamination out while giving you easy access when it’s time for routine maintenance.
Made to Last
Transmission oil isn’t cheap, and neither is fixing a transmission that’s been damaged by contaminated oil. This cap is built with quality materials that resist the chemical effects of hydraulic fluid while maintaining a proper seal through years of temperature swings and vibration. The robust construction prevents the cracking and thread damage that lets contaminants sneak in.
Good to Know
Installation is as simple as it gets—just unscrew the old cap and thread on the new one. Make sure it seats properly against the sealing surface, and tighten it snug but don’t overdo it or you’ll strip the threads. The “back end” designation refers to the transmission and rear axle oil reservoir, typically located on the rear section of your tractor.






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