188-8726 137.40 mm Long Thermal Bypass Valve
Cat® Bypass Valve (Thermal)
Description
The thermal bypass valve regulates fluid temperature by diverting return line flow to the cooler, or by bypassing it directly into the tank.
Features
- Integral pressure relief: 206.8 kPa (30 psi)
- Opening temperature: 49° C (120° F)
- Port type: SAE O-ring boss
- Port thread size: 1-5/16-12 (inlet, cooler, tank)
- Opening pressure: 26 psi
- Valve size: 1 inch
- Mounts with M10 fasteners
Applications
Used on hydraulic oil coolers. Refer to your Operation and Maintenance Manual or contact MECHSC for more information.
Specifications
| Length | 137.4 mm (5.4 in) |
|---|---|
| Width | 66.5 mm (2.62 in) |
| Height | 89.4 mm (3.52 in) |
Compatible Equipment
- Motor Graders: 14
- Wheel Loaders: 966M, 972M, 980M, 982M
- Off-Highway Trucks: 740, 730, 725, 735
Additional information
| Machine Model | |
|---|---|
| Equipment Type | |
| Part Source | Genuine OEM |








