Thermostat Bypass Hose - GM (12589978)
Genuine OEM GM Parts & Accessories - 12589978
Thermostat Bypass Hose - GM (12589978)
Genuine OEM GM Parts & Accessories - 12589978
- GM
- 12589978
Details
- Brand:
- SKU:
12589978
- Other Names:
Engine Coolant Bypass Hose
- Description: GM Genuine Parts Thermostat Bypass Hose (Part Number: 12589978)World Parts Direct — a U.S. company — provides OEM cooling hoses with competitive pricing, compatibility guarantee, and expert technical help.
- Function: Bypass hose for engine coolant routing around the thermostat to support proper coolant flow and temperature regulation.
- Quality: OEM replacement engineered to meet GM cooling system requirements for fit and durability.
- Use: Replace worn or cracked hoses to prevent coolant leaks and preserve engine temperature control.
- Also known as: Engine Coolant Bypass Hose
- Condition: New
- MSRP: $32.04
- You Save: $11.22 (35% off)
- Sale Price: $20.82
Also Purchased
Fast Delivery
Most in-stock items ship within 1–3 business days. Special orders may take longer.
OEM Parts. Wholesale Prices.
Genuine OEM parts with a nationwide warranty. Lowest pricing guaranteed.
Shop With Confidence
Secure checkout, verified fitment, and dealer-backed support from real parts experts.
- GM
- 12589978
Details
- Brand:
- SKU:
12589978
- Other Names:
Engine Coolant Bypass Hose
- Description: GM Genuine Parts Thermostat Bypass Hose (Part Number: 12589978)World Parts Direct — a U.S. company — provides OEM cooling hoses with competitive pricing, compatibility guarantee, and expert technical help.
- Function: Bypass hose for engine coolant routing around the thermostat to support proper coolant flow and temperature regulation.
- Quality: OEM replacement engineered to meet GM cooling system requirements for fit and durability.
- Use: Replace worn or cracked hoses to prevent coolant leaks and preserve engine temperature control.
- Also known as: Engine Coolant Bypass Hose
- Condition: New
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
WorldPartsDirect.com
Thanks for shopping with World Parts Direct, home of the low-price and right-part-guarantee! Everything we carry is genuine, OEM and ships straight from a licensed dealership. All of our products are backed by a nationwide warranty and can be returned within 30 days if you no longer need it. What's the catch? There isn't one! Nobody beats our prices and nobody offers higher quality parts than we do, and if we cannot get the part you need, nobody can! We offer hundreds of thousands of unique items, including discontinued parts. Your satisfaction is our top priority and we hope you'll give us the opportunity to earn your business today.
GM

Built with GM’s engineering expertise, ACDelco and OEM GM parts are factory original equipment replacement parts for your Chevy, Buick, Cadillac, GMC, Saturn, Pontiac, Oldsmobile or Hummer. Every ACDelco and OEM GM part is rigidly held to federal safety and quality standards and is guaranteed by GM Replacement Parts Limited Warranty. You can trust GM Genuine Parts when ordering this Thermostat Bypass Hose for your 2006-2011 vehicle. GM Parts & Accessories Limited Warranty.
