Best Radiator Drain Cocks

Looking for the best radiator drain cocks? We’ve compiled a list of the top 10 options to help you find the perfect fit for your vehicle’s cooling system.
Our selection offers a range of durable and reliable choices, making maintenance easy and ensuring your engine stays cool.

Maintaining your car’s cooling system is key to its performance. A reliable radiator drain cock ensures smooth coolant changes, keeping your engine cool. We’ve gathered the best options to help you choose the perfect fit.

From durable brass designs to universal styles, these drain cocks are built to last. Each product is tested for quality, ensuring they work just like the original parts.

Discover the top picks that fit popular models and make maintenance a breeze. Let’s dive in and find the perfect radiator drain cock for your vehicle!

List of Top 10 Radiator Drain Cocks

Title	Best For	Price
Dorman 61106 Drain Cock-Brass-1/4 In. NPT Compatible with Select Models	This Dorman 61106 Drain Cock is perfect for anyone needing a reliable radiator drain petcock. It’s a direct replacement that fits select models and is built to last.	View on Amazon (paid link)
Rexka 5pcs M14-20 Radiator Drain Plug Cock Petcock for Toyota Honda Suzuki Mazda Mitsubishi GM Isuzu Subaru	This Rexka 5pcs M14-20 Radiator Drain Plug is perfect for car owners who need a reliable replacement for their Toyota, Honda, Suzuki, Mazda, Mitsubishi, GM, Isuzu, or Subaru. It’s easy to install and fits many popular models.	View on Amazon (paid link)
RADREPLA Upgrade Universal Style Thread Male Brass Petcock Drain Plug 1/4″ NPT Radiator Drain Cocks Drain Plug	This RADREPLA Upgrade Universal Style Thread Male Brass Petcock Drain Plug is perfect for car owners who want a reliable and durable solution for their radiator drain needs. It’s ideal for GM models and fits many other vehicles too.	View on Amazon (paid link)
Dorman 61109 Radiator Drain Cocks Compatible with Select Models	This Dorman 61109 Radiator Drain Cock is perfect for car owners who want a reliable replacement part. It’s easy to install and built to last, making it ideal for anyone looking to keep their vehicle running smoothly.	View on Amazon (paid link)
Dorman 61110 Radiator Drain Cocks Compatible with Select Models	This Dorman 61110 Radiator Drain Cock is perfect for car owners who want a reliable replacement part. It’s easy to install and built to last, making it ideal for anyone looking to keep their vehicle running smoothly.	View on Amazon (paid link)
APDTY 160962 Radiator Drain Cock Screw-In Type With Washer	This APDTY 160962 Radiator Drain Cock Screw-In Type With Washer is perfect for car owners who need a reliable replacement part. It’s easy to install and fits specific vehicles listed in the compatibility chart.	View on Amazon (paid link)
Omix-Ada \| 17120.01 \| Radiator Drain Cock, 1/4 Inch \| OE Reference: 3166547 \| Fits 1983-2006 Jeep CJ/Wrangler YJ/TJ	This radiator drain cock is perfect for Jeep owners who want to keep their 1983-2006 CJ, YJ, or TJ running smoothly. It’s a simple, reliable replacement part for anyone looking to maintain their Jeep’s cooling system.	View on Amazon (paid link)
GM Genuine Parts 95018599 Radiator Drain Cock	This GM Genuine Parts Radiator Drain Cock is perfect for car owners who want reliable, high-quality parts. It’s designed specifically for Chevrolet, Buick, GMC, or Cadillac vehicles, ensuring a perfect fit and long-lasting performance.	View on Amazon (paid link)
Vntebozd Radiator Petcock Drain Plug Compatible with Ford 1999-2007 Duty7.3L/6.0LPowerstrokeRadiator Petcock Drain Plug (FOAZ-8115-A)	This Vntebozd Radiator Petcock Drain Plug is perfect for Ford owners with 1999-2007 Duty 7.3L/6.0L Powerstroke engines. It’s easy to install, durable, and compatible with your vehicle.	View on Amazon (paid link)
Dorman 43177 Radiator Drain Cock	The Dorman 43177 Radiator Drain Cock is perfect for car owners who want a reliable and easy way to drain their radiator. It’s ideal for DIY repairs and keeping your vehicle running smoothly.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 Radiator Drain Cocks handpicked for reliability and performance. Each product is expert-reviewed and backed by customer feedback, ensuring you get the best value for your needs. Whether you prioritize durability, ease of installation, or affordability, this guide has you covered—find the perfect fit for your vehicle today!

1. Dorman 61106 Drain Cock-Brass-1/4 In. NPT Compatible with Select Models

The Dorman 61106 Drain Cock is a direct replacement for your vehicle’s radiator drain. It’s made of durable brass with a 1/4-inch NPT thread, ensuring a perfect fit and long-lasting performance. This part is compatible with select models, so check your vehicle for a confirmed fit.

Dorman has over 100 years of experience crafting top-tier automotive parts. This drain cock is quality assured, tested to ensure it works just like the original equipment.

Pros	Cons
Perfect fit, direct replacement for your vehicle’s radiator drain. Built to last with quality materials for long-lasting performance. Trusted brand with 100 years of automotive expertise. Verified compatibility ensures a hassle-free installation.	Limited compatibility – Only works with select models. Small size – 1/4 inch NPT may not fit all needs. No installation tools – Requires extra parts for setup.

Perfect For:

This Dorman 61106 Drain Cock is perfect for anyone needing a reliable radiator drain petcock. It’s a direct replacement that fits select models and is built to last.

Ready to Purchase?

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2. 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 models from Toyota, Honda, and more. The thread size is M14-20, and it’s 39.5mm long.

This drain plug works with Honda, Acura, Chevy, and Dodge vehicles. It also fits Chrysler, Eagle, and Geo models. Check your car’s size before buying.

It’s compatible with Lexus, Mazda, Mitsubishi, and Plymouth cars. Also fits Ram, Scion, Suzuki, and Subaru models. Always confirm the size for your car.

Pros	Cons
Fits many cars, making it a versatile choice. Precise thread size ensures a perfect fit every time. Durable build for long-lasting performance and reliability. Easy to install, saving you time and effort.	Not a universal fit for all models. Check sizes before buying to avoid returns. No warranty or guarantee mentioned.

Perfect For:

This Rexka 5pcs M14-20 Radiator Drain Plug is perfect for car owners who need a reliable replacement for their Toyota, Honda, Suzuki, Mazda, Mitsubishi, GM, Isuzu, or Subaru. It’s easy to install and fits many popular models.

Ready to Purchase?

View Price on Amazon (paid link)

3. RADREPLA Upgrade Universal Style Thread Male Brass Petcock Drain Plug 1/4″ NPT Radiator Drain Cocks Drain Plug

The RADREPLA Upgrade Universal Style Thread Male Brass Petcock Drain Plug is a durable and reliable solution for your radiator needs. Made from high-quality brass, it ensures longevity and superior performance.

This 1/4″ NPT drain plug fits most GM model cars and light trucks. It may also fit other makes like Ford and Dodge. Easy to install, built to last, and exceptional quality.

Pros	Cons
Brass material ensures durability and longevity. Universal fit for most GM, Ford, and Dodge vehicles. Easy installation with 1/4″ NPT thread design. Crafted with high-grade materials for exceptional performance.	Not a universal fit for all vehicles, check compatibility first. Long ear design may not suit Ford or Dodge models. No installation tools or instructions included.

Perfect For:

This RADREPLA Upgrade Universal Style Thread Male Brass Petcock Drain Plug is perfect for car owners who want a reliable and durable solution for their radiator drain needs. It’s ideal for GM models and fits many other vehicles too.

Ready to Purchase?

View Price on Amazon (paid link)

4. Dorman 61109 Radiator Drain Cocks Compatible with Select Models

The Dorman 61109 Radiator Drain Cocks is a direct replacement for select models. It matches the fit and function of the original part. Made with quality materials, it ensures long-lasting use.

This part comes from Dorman Products, a trusted name with over 100 years of experience. It has passed virtual testing to ensure it works perfectly. Always check the fit for your vehicle using the garage tool.

Pros	Cons
Direct replacement for your vehicle’s original radiator drain petcock. Durable materials ensure a long-lasting service life. Quality assured with virtual testing for perfect fit and function. Trusted brand with over 100 years of automotive expertise.	Not universal – only fits select models, so check compatibility first. No installation tools – you’ll need to buy or find your own. Basic design – it’s a simple replacement, no extra features.

Perfect For:

This Dorman 61109 Radiator Drain Cock is perfect for car owners who want a reliable replacement part. It’s easy to install and built to last, making it ideal for anyone looking to keep their vehicle running smoothly.

Ready to Purchase?

View Price on Amazon (paid link)

5. Dorman 61110 Radiator Drain Cocks Compatible with Select Models

The Dorman 61110 Radiator Drain Cocks is a direct replacement for select models. It matches the original part in fit and function. This ensures a hassle-free installation.

Made with quality materials, it’s built to last long. Dorman’s 100+ years of experience guarantees reliable performance.

Before buying, check the fit using the garage tool. Look for the Confirmed Fit bar and verify any fitment notes. This ensures the part works perfectly for your vehicle.

Pros	Cons
Direct replacement for your vehicle’s original radiator drain petcock. Durable construction ensures a long service life. Quality assured with virtual testing for proper fit. Trusted brand with over 100 years of automotive expertise.	Not universal – only fits select models, check compatibility first. No installation tools – you’ll need to buy or find your own. Basic design – lacks extra features found in premium options.

Perfect For:

This Dorman 61110 Radiator Drain Cock is perfect for car owners who want a reliable replacement part. It’s easy to install and built to last, making it ideal for anyone looking to keep their vehicle running smoothly.

Ready to Purchase?

View Price on Amazon (paid link)

6. APDTY 160962 Radiator Drain Cock Screw-In Type With Washer

The APDTY 160962 Radiator Drain Cock Screw-In Type With Washer is a brand-new part. It comes with a washer for easy installation. This part is reliable and durable.

It is designed to fit specific vehicles. Check the compatibility chart to ensure it matches your car. This will guarantee a perfect fit every time.

This part replaces multiple OEM numbers. It is a direct replacement for 0005000185, 05140661AA, 17112247346, and 7L1Z8115A. Get a quality part at an affordable price.

Pros	Cons
Brand new and ready to use for your vehicle. Exact fit with compatibility chart for easy installation. Replaces multiple parts, saving time and money. Includes washer for a secure, leak-free seal.	No tools included for installation. Limited compatibility—check chart carefully before buying. Washer may need extra replacement over time.

Perfect For:

This APDTY 160962 Radiator Drain Cock Screw-In Type With Washer is perfect for car owners who need a reliable replacement part. It’s easy to install and fits specific vehicles listed in the compatibility chart.

Ready to Purchase?

View Price on Amazon (paid link)

7. Omix-Ada | 17120.01 | Radiator Drain Cock, 1/4 Inch | OE Reference: 3166547 | Fits 1983-2006 Jeep CJ/Wrangler YJ/TJ

The Omix-Ada Radiator Drain Cock is a must-have auto part for Jeep owners. It fits 1983-2006 Jeep CJ/Wrangler YJ/TJ models. This 1/4 inch drain cock replaces the OE reference 3166547.

This product is easy to install and use. Its compact size (5.6 cm L x 12.4 cm W x 20.9 cm H) makes it convenient to store. The package includes one drain cock, ready for immediate use.

Made in Taiwan, Province of China, this high-quality part ensures reliable performance. It’s a smart choice for maintaining your Jeep’s cooling system.

Pros	Cons
Fits Jeep CJ/Wrangler YJ/TJ models from 1983-2006. Durable radiator drain cock for reliable cooling system maintenance. Compact packaging, easy to store and handle. Quality auto part made in Taiwan, trusted craftsmanship.	Not for newer Jeep models (post-2006). Single-use item, no bulk packaging. Made in Taiwan, not OEM quality.

Perfect For:

This radiator drain cock is perfect for Jeep owners who want to keep their 1983-2006 CJ, YJ, or TJ running smoothly. It’s a simple, reliable replacement part for anyone looking to maintain their Jeep’s cooling system.

Ready to Purchase?

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8. GM Genuine Parts 95018599 Radiator Drain Cock

The GM Genuine Parts 95018599 Radiator Drain Cock is a reliable and high-quality component for your vehicle. It is designed and engineered by GM to meet strict standards.

This part may have previously appeared as ACDelco GM Original Equipment (OE). GM regularly updates designs to include new materials and technologies.

It is specifically validated for Chevrolet, Buick, GMC, or Cadillac vehicles. Trust this part for lasting performance and peace of mind.

Pros	Cons
GM Genuine Parts ensure perfect fit for your vehicle. Engineered by GM for top performance and reliability. Regular updates mean latest materials and technology. Backed by General Motors for peace of mind.	Limited to GM vehicles, not universal. Higher cost than aftermarket options. No DIY-friendly features, requires tools.

Perfect For:

This GM Genuine Parts Radiator Drain Cock is perfect for car owners who want reliable, high-quality parts. It’s designed specifically for Chevrolet, Buick, GMC, or Cadillac vehicles, ensuring a perfect fit and long-lasting performance.

Ready to Purchase?

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9. Vntebozd Radiator Petcock Drain Plug Compatible with Ford 1999-2007 Duty7.3L/6.0LPowerstrokeRadiator Petcock Drain Plug (FOAZ-8115-A)

The Vntebozd Radiator Petcock Drain Plug is a perfect fit for Ford trucks from 1999 to 2007 with 7.3L or 6.0L Powerstroke engines. It’s designed to replace the original part FOAZ-8115-A.

This drain plug is built to last with quality materials. The plastic clip resists wear and tear, ensuring reliable performance. Its durable construction means it’ll serve you for a long time.

Installation is quick and easy. No special tools or expert skills are needed. Even beginner car owners can replace it effortlessly, saving time and effort.

Pros	Cons
Fits Ford 1999-2007 Duty 7.3L/6.0L Powerstroke perfectly. Durable materials ensure a long-lasting performance. Easy installation for any car owner, no special tools needed. Resists wear and tear with a sturdy plastic clip.	Plastic clip may not be as durable as metal alternatives. Limited compatibility with only Ford 1999-2007 models. No extra tools included, requires separate purchase if needed.

Perfect For:

This Vntebozd Radiator Petcock Drain Plug is perfect for Ford owners with 1999-2007 Duty 7.3L/6.0L Powerstroke engines. It’s easy to install, durable, and compatible with your vehicle.

Ready to Purchase?

View Price on Amazon (paid link)

10. Dorman 43177 Radiator Drain Cock

The Dorman 43177 Radiator Drain Cock is a reliable automotive part. It helps drain coolant from your car’s radiator. This part is easy to install.

It is made by Dorman Products, a trusted brand. The part weighs only 0.044 pounds, making it lightweight.

This radiator drain cock is a must-have for car maintenance. It ensures smooth coolant changes. Keep your car running cool with this handy part.

Pros	Cons
Easy to install, saving you time and effort. Durable design ensures long-lasting performance. Perfect fit for your vehicle’s radiator system. Affordable solution for smooth coolant drainage.	No warranty offered, leaving buyers without coverage. Limited size details, making fitment uncertain for some vehicles. Lightweight design may raise durability concerns under heavy use.

Perfect For:

The Dorman 43177 Radiator Drain Cock is perfect for car owners who want a reliable and easy way to drain their radiator. It’s ideal for DIY repairs and keeping your vehicle running smoothly.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Keeping your car’s cooling system in top shape is easy with the right radiator drain cock. A reliable part ensures smooth coolant changes, helping your engine stay cool. We’ve gathered the best options to make your choice simple.

Buying a radiator drain cock is a smart move for car owners. It keeps your vehicle running smoothly and prevents overheating. Here’s what to consider when choosing the perfect one:

Compatibility:
Check your car’s make and model to ensure the drain cock fits. Look for specific thread sizes or universal styles that match your radiator.
Material:
Choose durable materials like brass for long-lasting performance. Avoid cheap options that may wear out quickly.
Ease of Installation:
Look for easy-to-install parts, especially if you’re a beginner. Screw-in types with washers are often the simplest.
Brand Reputation:
Trust brands with a proven track record, like Dorman or GM Genuine Parts. They offer quality-tested products.
Price and Value:
Compare prices to find the best deal. A slightly higher cost for a reliable part is worth it in the long run.
Customer Reviews:
Read reviews to see how others rate the product. Look for positive feedback on durability and fit.

With these tips, you’ll find the perfect radiator drain cock for your car. Enjoy hassle-free maintenance and a cooler engine!