One-stop auto parts supplier

459-2597 Secondary Steering Oil Pressure Switch for Caterpillar | 4592597
The 459-2597 secondary steering oil pressure switch is designed for selected Caterpillar articulated trucks and wheel loaders. It features a 3-pin DT connector and a 124 psi activation pressure. Contact RJT PARTS for aftermarket replacement options, pricing, and bulk orders.
459-2597 Secondary Steering Oil Pressure Switch for Caterpillar
The 459-2597 secondary steering oil pressure switch is designed for selected Caterpillar heavy equipment. It monitors pressure in the secondary steering circuit and changes its electrical contact state when the pressure reaches its activation point.
This pressure switch features a carbon steel body, a 3-pin DT connector, and a pigtail connection. It uses a normally open and normally closed contact arrangement to support the required switching function.
For equipment owners, repair shops, and parts distributors, choosing the correct pressure switch helps maintain the intended operation of the steering system. Always check the original part number and machine configuration before ordering.
Product Specifications
| Item | Details |
|---|---|
| Part Number | 459-2597 |
| Product Name | Secondary Steering Oil Pressure Switch |
| Brand Application | Caterpillar |
| Switch Type | Oil Pressure Switch |
| Activation Pressure | 855 kPa (124 psi) |
| Contact Position | NO / NC, SPDT |
| Connector Type | 3-Pin DT |
| Connection | Pigtail Connector |
| Thread Size | 3/4-16 |
| Material | Carbon Steel |
| Operating Voltage | 5–28 V |
| Media | Oil, fuel, and air |
Key Features
- Pressure-responsive switching: Changes contact state when the pressure reaches the specified activation point.
- Designed for steering systems: Supports pressure monitoring in compatible secondary steering circuits.
- 3-pin DT connector: Provides an electrical connection for compatible equipment wiring.
- Robust construction: The carbon steel body suits demanding heavy equipment environments.
- Clear part number identification: The 459-2597 reference helps buyers identify the required replacement part.
Applications
The 459-2597 pressure switch is listed for selected Caterpillar articulated trucks and wheel loaders.
Published compatible models include:
- Articulated trucks: 725C, 725C2, 730C, 730C2, 740, 740 GC, and 745
- Ejector trucks: selected 730C and 730C2 configurations
- Wheel loaders: 924H, 924HZ, 928H, 928HZ, and 930H
Compatibility can vary with machine configuration and serial number. Please confirm the original part number and application before purchasing.
Why Choose RJT PARTS?
RJT PARTS supplies aftermarket replacement parts for agricultural machinery, construction equipment, and industrial engines. We support B2B buyers who need to source parts by OE reference number and equipment application.
Whether you are a parts distributor, repair workshop, or machinery parts wholesaler, our team can help you check product details and request a quotation.
Contact RJT PARTS with the part number, required quantity, and destination country for pricing and availability.
Related Products
If you need more electrical components for Caterpillar equipment, visit our Caterpillar Sensors and Switches category to explore other replacement sensors and switches.
For the manufacturer’s product description and additional compatibility checks, refer to the official Cat Parts Store listing for 459-2597.
Please verify the part number against your machine’s parts manual before ordering.





