Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Water Pump and Components
2025 Chevrolet Trailblazer ACTIV, 4WDSECTION Water Pump and Components
WARNING: This page is about a different variant/trim than selected.
| Callout | Component Name |
|---|---|
| 1 | Thermostat Bypass Pipe |
| 2 | Water Outlet Gasket |
| 3 | Water Outlet |
| 4 | Engine Coolant Temperature Sensor Seal |
| 5 | Engine Coolant Temperature Sensor |
| 6 | Engine Coolant Temperature Sensor Retainer |
| 7 | Water Outlet Bolt [3x] |
| 8 | Thermostat Bypass Hose Clamp |
| 9 | Thermostat Bypass Pipe Bolt |
| 10 | Thermostat Bypass Pipe Bolt |
| 11 | Water Pump Rear Housing |
| 12 | Thermostat Bypass Hose Clamp |
| 13 | Engine Oil Cooler |
| 14 | Engine Oil Cooler Bolt [4x] |
| 15 | Engine Oil Cooler Gasket [2x] |
| 16 | Engine Coolant Thermostat |
| 17 | Water Pump Housing Bolt [3x] |
| 18 | Engine Coolant Thermostat Housing Bolt [3x] |
| 19 | Engine Coolant Thermostat Gasket |
| 20 | Water Pump Housing Bolt |
| 21 | Water Pump Bolt [5x] |
| 22 | Water Pump Pulley Bolt [3x] |
| 23 | Water Pump Pulley |
| 24 | Water Pump |
| 25 | Water Pump Gasket |
| 26 | Water Pump Housing Gasket [3x] |
| 27 | Water Pump Housing Gasket |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.