Engine Coolant Thermostat Housing Plug O-Ring - GM (55555984)
Genuine OEM GM Parts & Accessories - 55555984
Engine Coolant Thermostat Housing Plug O-Ring - GM (55555984)
Genuine OEM GM Parts & Accessories - 55555984
- GM
- 55555984
Details
- Brand:
- SKU:
55555984
- Other Names:
Thermostat Housing Seal
- Description: GM Genuine Parts Engine Coolant Thermostat Housing Plug O-Ring (Part Number: 55555984) is an OEM replacement O-ring seal for the thermostat housing plug to help maintain coolant sealing and prevent leaks.World Parts Direct is a U.S. distributor offering excellent OEM pricing, compatibility guarantees, and expert technical help for cooling-system repairs.
- Function: Seals thermostat housing plug to prevent coolant leakage
- Application: OEM replacement seal for specified thermostat housing assemblies
- Benefit: Restores factory sealing and helps maintain proper engine cooling system integrity
- Also known as: Thermostat Housing Seal
- Heating & Cooling
- Caps (Coolant & Oil Caps)
- 13
- Condition: New
- Notes: Included with thermostat housing.
Key Product Benefits
- Includes 10 units per order
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
- 55555984
Details
- Brand:
- SKU:
55555984
- Other Names:
Thermostat Housing Seal
- Description: GM Genuine Parts Engine Coolant Thermostat Housing Plug O-Ring (Part Number: 55555984) is an OEM replacement O-ring seal for the thermostat housing plug to help maintain coolant sealing and prevent leaks.World Parts Direct is a U.S. distributor offering excellent OEM pricing, compatibility guarantees, and expert technical help for cooling-system repairs.
- Function: Seals thermostat housing plug to prevent coolant leakage
- Application: OEM replacement seal for specified thermostat housing assemblies
- Benefit: Restores factory sealing and helps maintain proper engine cooling system integrity
- Also known as: Thermostat Housing Seal
- Heating & Cooling
- Caps (Coolant & Oil Caps)
- 13
- Condition: New
- Notes: Included with thermostat housing.
Also Purchased
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 Engine Coolant Thermostat Housing Plug O-Ring for your 2009-2011 Chevrolet Aveo5 vehicle. GM Parts & Accessories Limited Warranty.
