Looking for the best radiator drain assemblies to keep your vehicle’s cooling system in top shape? Discover our top 10 picks tailored to fit popular models, offering easy installation, durable materials, and hassle-free maintenance.
Keeping your vehicle’s cooling system in top shape is key to its performance and longevity. Whether you’re a car owner or a truck driver, the right radiator drain assembly can make all the difference. From easy installation to durable materials, these parts ensure your cooling system works flawlessly.
Discover the best radiator drain assemblies tailored to fit popular models like Toyota, GM, Nissan, and more. Find the perfect match for your vehicle and enjoy hassle-free maintenance every time.
List of Top 10 Radiator Drain Assemblies
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Rexka 5pcs M14-20 Radiator Drain Plug Cock Petcock for Toyota Honda Suzuki Mazda Mitsubishi GM Isuzu Subaru |
This Rexka Radiator Drain Plug is perfect for car owners who need a reliable replacement part. It fits many popular car models, making it a great choice for DIY repairs. |
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GM Genuine Parts 22887095 Radiator Drain Plug |
This radiator drain plug is perfect for drivers who want true GM quality. It’s made for anyone who values parts tested by GM engineers and built to fit their Chevrolet, Buick, GMC, or Cadillac with confidence. |
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Dorman 61109 Radiator Drain Cocks Compatible with Select Models |
This part is perfect for drivers who want a reliable radiator drain cock that fits like the original. It’s ideal for anyone who values durable construction and quality assurance backed by over a century of expertise. |
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9996049 JD007 (1500mm) For Volvo MACK Renault Trucks Radiator Coolant Drain Hose For 2004-2019 Volvo Trucks&2008-2019 Mack Trucks Silica Gel |
This radiator coolant drain hose is perfect for truck owners and mechanics who need a reliable replacement for their Volvo or Mack trucks. It’s easy to install and built to last, making it ideal for keeping your cooling system in top shape. |
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4Pcs Radiator Drain Plug Petcock 21440-50Y00 2144050Y00 61137 Compatible with Nissan Altima Frontier GT-R Maxima Murano Pathfinder Quest Sentra Versa Xterra Leaf & Infiniti EX35 FX35 M35 Q70 QX50 QX70 |
This 4-piece radiator drain plug set is perfect for car owners who need a reliable replacement part. It’s ideal for Nissan and Infiniti models, fitting many popular vehicles like the Altima, Maxima, and QX50. |
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Radiator Drain Plug Assembly 25327-R9000 for Hyundai IX25 2019 2020 Coolant Drain Plug Radiator Petcock Valve Cooling System Drain Bolt Replacement Antifreeze Drain Plug |
This part is perfect for Hyundai IX25 owners who want a secure, easy-to-install radiator drain plug for smooth coolant changes and system flushing. It’s made for anyone who values a precise fit and hassle-free maintenance. |
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GM Genuine Parts 95018599 Radiator Drain Cock |
This radiator drain cock is perfect for anyone who owns a Chevrolet, Buick, GMC, or Cadillac. It’s designed by GM engineers to fit your vehicle perfectly. |
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GM Genuine Parts 15781370 Radiator Drain Petcock |
This GM Genuine Parts Radiator Drain Petcock is perfect for GM vehicle owners who want a reliable replacement part. It’s made to fit your GM car perfectly and lasts long, just like the original part. |
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KAX Radiator Assembly for 2004-2006 X3, 2006 X3 3.0L, Automotive Radiators CU2771, with Coolant Drain Plug |
This KAX Radiator Assembly is perfect for owners of 2004-2006 X3 models, especially the 2006 X3 3.0L. It’s ideal for those seeking a durable, leakproof, and safe replacement radiator with easy installation and reliable performance. |
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DGZZI Cooler Drain Plug Assembly 1 Inch Drain Plug Replacement Easy Installation Suitable for Models 5235/5236/5239/5248/5254/5255/5256/5265/5269 |
This cooler drain plug assembly is perfect for anyone with a compatible model who needs a quick, easy fix for a leaky radiator. It’s simple to install and saves you money by avoiding a full radiator replacement. |
Detailed Reviews
Discover the Best Radiator Drain Assemblies with our expert guide. Each product is chosen for its quality, fit, and value. Simple, clear reviews make it easy to find the perfect match for your vehicle.
1. Rexka 5pcs M14-20 Radiator Drain Plug Cock Petcock for Toyota Honda Suzuki Mazda Mitsubishi GM Isuzu Subaru

The Rexka 5pcs M14-20 Radiator Drain Plug is a must-have for car owners. It fits many popular car models.
This drain plug has a thread size of M14-20. It works with Toyota, Honda, and Subaru. It also fits Mazda, Mitsubishi, and Isuzu.
The overall length is 39.5mm. Always check your car’s size before buying. This ensures a perfect fit every time.
| Pros | Cons |
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Perfect For:
This Rexka Radiator Drain Plug is perfect for car owners who need a reliable replacement part. It fits many popular car models, making it a great choice for DIY repairs.
Ready to Purchase?
2. GM Genuine Parts 22887095 Radiator Drain Plug

The GM Genuine Parts 22887095 Radiator Drain Plug is built to fit right and last long. It’s made to meet strict GM standards for quality and performance.
It’s tested by GM engineers. It works with Chevrolet, Buick, GMC, and Cadillac. It uses updated materials and designs.
| Pros | Cons |
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Perfect For:
This radiator drain plug is perfect for drivers who want true GM quality. It’s made for anyone who values parts tested by GM engineers and built to fit their Chevrolet, Buick, GMC, or Cadillac with confidence.
Ready to Purchase?
3. Dorman 61109 Radiator Drain Cocks Compatible with Select Models

The Dorman 61109 Radiator Drain Cocks is built as a direct replacement part. It matches the fit and function of the original equipment perfectly.
Made with durable materials, this part is designed for a long service life. Backed by over a century of experience, Dorman ensures trusted quality.
It is quality assured. It has passed virtual testing. Always check the Confirmed Fit bar before buying.
| Pros | Cons |
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Perfect For:
This part is perfect for drivers who want a reliable radiator drain cock that fits like the original. It’s ideal for anyone who values durable construction and quality assurance backed by over a century of expertise.
Ready to Purchase?
4. 9996049 JD007 (1500mm) For Volvo MACK Renault Trucks Radiator Coolant Drain Hose For 2004-2019 Volvo Trucks&2008-2019 Mack Trucks Silica Gel

Keep your truck’s cooling system in top shape with this radiator coolant drain hose. It’s designed for Volvo and Mack trucks, ensuring a perfect fit.
Made from durable silica gel, this hose can withstand high temperatures and provides flexibility for easy installation. Its 1.5-meter length offers ample reach for various setups.
Two hoses are included, with part numbers 9996049 and JD007. They enable proper drainage and maintenance of your truck’s cooling system.
| Pros | Cons |
|---|---|
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Perfect For:
This radiator coolant drain hose is perfect for truck owners and mechanics who need a reliable replacement for their Volvo or Mack trucks. It’s easy to install and built to last, making it ideal for keeping your cooling system in top shape.
Ready to Purchase?
5. 4Pcs Radiator Drain Plug Petcock 21440-50Y00 2144050Y00 61137 Compatible with Nissan Altima Frontier GT-R Maxima Murano Pathfinder Quest Sentra Versa Xterra Leaf & Infiniti EX35 FX35 M35 Q70 QX50 QX70

Keep your car’s cooling system in top shape with this 4-piece radiator drain plug set. It’s a direct-fit replacement for many Nissan and Infiniti models. Easy to install, it ensures your radiator functions properly.
This drain plug is also known by many names, including radiator drain petcock and coolant drain plug. It fits perfectly into 10 mm x 1.25 radiator drain ports, making it a reliable choice for your vehicle.
Compatible with a wide range of cars, from Nissan Altima to Infiniti QX70, this drain plug set is a must-have for any car owner. Replace your old or damaged plug with this high-quality alternative.
| Pros | Cons |
|---|---|
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Perfect For:
This 4-piece radiator drain plug set is perfect for car owners who need a reliable replacement part. It’s ideal for Nissan and Infiniti models, fitting many popular vehicles like the Altima, Maxima, and QX50.
Ready to Purchase?
6. Radiator Drain Plug Assembly 25327-R9000 for Hyundai IX25 2019 2020 Coolant Drain Plug Radiator Petcock Valve Cooling System Drain Bolt Replacement Antifreeze Drain Plug

The Radiator Drain Plug Assembly is a direct OEM replacement for your Hyundai IX25. It fits 2019–2020 models and works with the cooling system.
This part helps drain coolant during maintenance. It has a secure fit and easy installation. Check your vehicle model and part number before buying.
| Pros | Cons |
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Perfect For:
This part is perfect for Hyundai IX25 owners who want a secure, easy-to-install radiator drain plug for smooth coolant changes and system flushing. It’s made for anyone who values a precise fit and hassle-free maintenance.
Ready to Purchase?
7. GM Genuine Parts 95018599 Radiator Drain Cock

The GM Genuine Parts 95018599 Radiator Drain Cock is a reliable part for your vehicle. It’s made to fit perfectly in your car.
GM Engineers design these parts for Chevrolet, Buick, GMC, or Cadillac. They use new materials and technologies to make them better. Each part is tested to meet high standards.
These parts may have been called ACDelco GM Original Equipment before. They are backed by General Motors, so you can trust them. Regular updates keep them up-to-date and efficient.
| Pros | Cons |
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Perfect For:
This radiator drain cock is perfect for anyone who owns a Chevrolet, Buick, GMC, or Cadillac. It’s designed by GM engineers to fit your vehicle perfectly.
Ready to Purchase?
8. GM Genuine Parts 15781370 Radiator Drain Petcock

The GM Genuine Parts 15781370 Radiator Drain Petcock is built to keep your GM vehicle running right. It’s a GM-recommended replacement part designed to match your car’s original factory component.
It offers quality. It delivers reliability. It ensures durability.
Made to GM OE specification, this part guarantees proper fit, form, and function. With trusted engineering and a country of origin: Brazil, it’s a smart choice for lasting performance.
| Pros | Cons |
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Perfect For:
This GM Genuine Parts Radiator Drain Petcock is perfect for GM vehicle owners who want a reliable replacement part. It’s made to fit your GM car perfectly and lasts long, just like the original part.
Ready to Purchase?
9. KAX Radiator Assembly for 2004-2006 X3, 2006 X3 3.0L, Automotive Radiators CU2771, with Coolant Drain Plug

The KAX Radiator Assembly is built to fit your 2004-2006 BMW X3 and the 2006 X3 3.0L. It matches OEM numbers like CU2771 and more, making it a reliable replacement.
Made with a high-grade aluminum core and plastic water tank, this radiator is strong and leakproof. It resists corrosion and delivers excellent thermal conductivity for long-lasting performance.
Safe delivery. One-year warranty. Fast customer support.
| Pros | Cons |
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Perfect For:
This KAX Radiator Assembly is perfect for owners of 2004-2006 X3 models, especially the 2006 X3 3.0L. It’s ideal for those seeking a durable, leakproof, and safe replacement radiator with easy installation and reliable performance.
Ready to Purchase?
10. DGZZI Cooler Drain Plug Assembly 1 Inch Drain Plug Replacement Easy Installation Suitable for Models 5235/5236/5239/5248/5254/5255/5256/5265/5269

The DGZZI Cooler Drain Plug Assembly is a 1-inch replacement for damaged radiator plugs. It’s easy to install and saves you from buying a new radiator.
Made from premium materials, it ensures a leak-free seal. Its precise fit works perfectly with compatible models. No special tools are needed for installation.
This drain plug fits many models, including 5235, 5255, and 5854. The package includes one cooler drain plug assembly. Quick fix for your cooling system.
| Pros | Cons |
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Perfect For:
This cooler drain plug assembly is perfect for anyone with a compatible model who needs a quick, easy fix for a leaky radiator. It’s simple to install and saves you money by avoiding a full radiator replacement.
Ready to Purchase?
Buying Guide
Keeping your vehicle’s cooling system in top shape is key to its performance and longevity. The right radiator drain assembly ensures hassle-free maintenance and a perfect fit for your car or truck.
Here’s what to consider when buying the best radiator drain assembly:
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Compatibility: Always check your vehicle’s make and model before buying. Ensure the part fits popular brands like Toyota, GM, Nissan, or specific models like Hyundai IX25.
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Material Quality: Look for durable materials like silica gel, aluminum, or premium metals. These ensure longevity and leak-free performance.
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Thread Size: Verify the thread size (e.g., M14-20 or 10 mm x 1.25) matches your radiator’s drain port for a secure fit.
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Ease of Installation: Choose parts with simple installation processes. Some require no special tools, saving time and effort.
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OEM Standards: Opt for OEM replacements or genuine parts like GM Genuine Parts for reliable performance and perfect fit.
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Warranty and Support: Look for products with warranties or customer support for added peace of mind.
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Price and Value: Compare prices to find the best value without compromising on quality.
Discover the perfect radiator drain assembly for your vehicle and enjoy hassle-free maintenance every time.