Keep a dependable eye on engine oil pressure with this Dorman sensor: the Dorman - HD Solutions Engine Oil Pressure Sensor 904-5050, engineered to help accurately monitor oil pressure when the original sensor has failed. It fits many vehicles, among them the 2005-2018 Blue Bird All American RE, 2012-2018 Freightliner 108SD 6.7L / 7.7L / 8.3L / 8.9L and 2012-2025 Freightliner 114SD. See the "Vehicles it fits" section for the full list with engine codes.
- Direct replacement: Dorman designed this engine oil pressure sensor to install and work like the original sensor on the listed applications.
- Ideal solution: Built to help accurately monitor oil pressure when an original sensor has failed from heat or internal component damage.
- Durable construction: Designed and produced to strict specifications for dependable performance.
- Trustworthy quality: Backed by a team of product experts in the United States and more than a century of automotive experience.
Specifications: brass finish, rectangular female connector, wire harness not included. The package contains one engine oil pressure sensor. Country of origin: China.
Signs this part may need replacing: an oil pressure gauge that reads erratically or drops to zero, an oil pressure warning light that flickers or stays on, or oil seeping at the sensor. Low readings can also come from genuinely low oil pressure, so confirm the actual pressure before replacing the sensor.
Interchange: 577.90501 · 1001-1004
4921517 · 57790501 · 10011004
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
577.90501, 4921517, 1001-1004
Frequently Asked Questions
What does the Dorman 904-5050 oil pressure sensor do?
It monitors engine oil pressure. It is designed to replace an original sensor that has failed from heat or internal component damage.
Does this sensor fit the 2012-2025 Freightliner 114SD?
Yes. It is listed for the 2012-2025 Freightliner 114SD and the 2012-2018 Freightliner 108SD 6.7L / 7.7L / 8.3L / 8.9L. Check the "Vehicles it fits" section to confirm your engine code.
Is a wiring harness included?
No. The package contains the engine oil pressure sensor only. It has a rectangular female connector for the vehicle's harness.
What are signs an oil pressure sensor may need replacing?
Signs include an erratic or zero gauge reading, a flickering or constant oil pressure warning light, or oil seeping at the sensor. Confirm the actual oil pressure first.
Where is this sensor made?
The country of origin is China. The sensor is backed by Dorman's U.S.-based team of product experts.
