Description
Overview:
This Genuine Perkins Oil Pressure Switch (OEM No. T421762) is designed for the Perkins 403D-15 (GK51916U) diesel engine. It uses a robust metal body with a threaded male port and a sealed electrical connector to monitor engine oil pressure. When pressure drops below a safe level, it triggers the warning light or gauge to help prevent costly engine damage. Built to OEM standards, it offers a precise fit and reliable operation in plant, agricultural, and generator applications powered by the Perkins 403D-15. The durable construction resists heat, vibration, and oil exposure, making it a dependable service part for routine maintenance or fault rectification. Supplied as a direct replacement, it supports correct engine management and helps protect bearings, camshaft, and other lubricated components.
Key Features:
- Genuine Perkins part for OEM quality, fit, and performance
- OEM No. T421762 for straightforward identification and ordering
- Monitors oil pressure and signals low-pressure warnings to protect the engine
- Durable metal housing and sealed connector for reliability in harsh environments
- Designed for the Perkins 403D-15 engine for correct calibration and switching
- Easy installation into the engine oil gallery via the threaded port
- Resistant to vibration, heat, and oil for long service life
- Supports preventative maintenance and helps avoid breakdowns
Typical Applications:
Used on Perkins-powered compact plant, small tractors, generators, compressors, lighting towers, pumps, and OEM machinery using the 403D-15 engine. Ideal for routine servicing, diagnostic replacement when oil warning lights behave erratically, and restoration of correct oil pressure monitoring after engine rebuilds or oil system work.
Also known as:
Oil pressure sender, oil pressure sender unit (OPSU), oil warning switch, lubrication pressure switch, low oil warning sender, engine oil pressure switch unit, pressure sender.
Fits Models:
403D-15 (GK51916U)
Alternate Part Numbers:
T421762
Product Specifications
| L&S Part No. | T421762 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Perkins |
| OEM No. | T421762 |
| Machine Type | Engines |
| Fits Brands | Perkins |
| Key Features | - Genuine Perkins part ensures OEM quality and fit - Designed for Perkins 403D-15 engine - Monitors oil pressure, triggers low-pressure warnings - Durable metal housing resists heat and vibration - Easy installation via threaded male port |
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