Oil Pressure Switch 35999307M91 for Massey Ferguson 20D 25 30E 40E 396 398
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Oil Pressure Switch for Massey Ferguson
This oil pressure switch for Massey Ferguson, referencing OEM cross-reference 35999307M91, monitors engine oil pressure to trigger a warning light, letting you know when lubrication drops to a dangerous level.
Overview
This oil pressure switch 35999307M91 is an electrical sensor that sends a signal to the dashboard light when engine oil pressure falls below a safe level. It is built to fit a range of Massey Ferguson tractors, providing a direct and reliable replacement for a worn or failed unit. This oil pressure switch helps protect your engine from costly damage by giving you an early warning of a pressure problem.
Built For Performance
- Precision-threaded housing for a vibration-proof seal
- Contact points made for high-cycle reliability
- Heat-resistant construction for continuous engine bay exposure
- Calibrated actuation pressure for accurate warning
- Drop-in replacement for OEM part number 35999307M91
Fits These Machines
- for Massey Ferguson 20D
- for Massey Ferguson 25
- for Massey Ferguson 30E
- for Massey Ferguson 40E
- for Massey Ferguson 396
- for Massey Ferguson 398
On-The-Job Use
- Used in agricultural tractors for field work
- Installed on loader and backhoe operations
- Applied in estate and small farm maintenance
- Utilized in power take-off (PTO) driven implements
Specs At A Glance
| Part Number(s) | 35999307M91 |
| Type | Oil Pressure Switch |
| Function | Monitors oil pressure |
Good To Know
Q: What are signs this oil pressure switch needs replacing? A: An oil pressure warning light that flickers or stays on when the engine is properly lubricated indicates a faulty switch. You may also notice an unlit warning light during the ignition self-test.
Q: Should I replace the switch if my oil pressure reads low? A: First verify the actual oil pressure with a manual gauge. If oil pressure is genuinely low, replace the switch only after fixing the root cause, such as low oil level or a worn pump.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.