Best Automotive Drain Cocks

Looking for the best automotive drain cocks to keep your vehicle’s cooling system in top shape? We’ve curated a list of 10 top picks from trusted brands like Dorman and Milton, ensuring you find the perfect fit for a worry-free drive.

Keeping your vehicle’s cooling system in top shape is key to a smooth ride. A reliable drain cock stops leaks and keeps your engine running cool. We’ve picked the best automotive drain cocks to make your choice easy.

From trusted brands like Dorman and Milton to genuine OEM parts, we’ve got you covered. Find the perfect fit for your car and enjoy a worry-free drive. Let’s dive in and keep your vehicle running like new!

List of Top 10 Automotive Drain Cocks

Title	Best For	Price
Dorman 61106 Drain Cock-Brass-1/4 in. NPT	This Dorman 61106 Drain Cock is perfect for anyone needing a reliable radiator drain petcock. It’s a direct replacement that fits like the original part and is built to last.	View on Amazon (paid link)
Milton S-614-2 1/8″ Compressor Tank Drain Cock – Pack of 2	This Milton S-614-2 1/8″ Compressor Tank Drain Cock is perfect for anyone fixing a leaky or broken drain cock on their compressor tank. It’s easy to install and made in the USA, making it ideal for DIYers, mechanics, or professionals who need a reliable replacement part.	View on Amazon (paid link)
Dorman 61109 Radiator Drain Cocks	This Dorman 61109 Radiator Drain Cock is perfect for anyone needing a reliable replacement part. It’s easy to install and built to last, making it ideal for car owners who want quality and durability.	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)
APDTY 72247 Radiator Drain Cock	This radiator drain cock is perfect for car and truck owners who need a clean, exact fit part. It is also great for repair shops that want a simple, brand new replacement.	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)
Dorman 61110 Radiator Drain Cocks	This Dorman 61110 Radiator Drain Cock is perfect for anyone needing a reliable replacement for their vehicle’s radiator drain. It’s easy to install and built to last, making it ideal for DIY enthusiasts and car owners who want a hassle-free fix.	View on Amazon (paid link)
GM Genuine Parts 95018599 Radiator Drain Cock	This radiator drain cock is perfect for car owners who want reliable, high-quality parts. It’s designed for Chevrolet, Buick, GMC, or Cadillac vehicles, making it a great fit for GM drivers.	View on Amazon (paid link)
APDTY 72244 Radiator Drain Cock	This APDTY 72244 Radiator Drain Cock 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)
Mazda Cock Drain Wl2115203	This Mazda Cock Drain Plug is perfect for car owners who need a reliable replacement part. It’s easy to install and fits perfectly in your Mazda’s cooling system.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 Automotive Drain Cocks handpicked for quality, durability, and ease of use. Each product is expert-reviewed and backed by customer feedback to ensure reliable performance. Whether you need a direct replacement or a long-lasting upgrade, this guide has you covered. Find the perfect fit for your vehicle and keep your cooling system leak-free and running smoothly.

1. Dorman 61106 Drain Cock-Brass-1/4 in. NPT

Upgrade your vehicle with this top quality brass drain cock. It fits well and works like the original part. You can trust it to last for a long time.

It is easy to use on your car radiator. You get great quality from a trusted brand.

Always check the fit before you buy. This part keeps your car safe and dry. Get yours today to fix your vehicle fast.

Pros	Cons
Fits perfectly, direct replacement for your original drain petcock. Built to last with durable brass construction. Quality assured with virtual testing for reliable performance. Trusted brand with 100 years of automotive expertise.	Fit check may still be needed Not universal for all cars Brass may cost more

Perfect For:

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

Ready to Purchase?

View Price on Amazon (paid link)

2. Milton S-614-2 1/8″ Compressor Tank Drain Cock – Pack of 2

Keep your air tank dry and rust-free with ease. These durable drain valves replace worn or broken parts fast. Protect your valuable air compressor for the long haul.

Simply turn the handle to clear out excess water. Then seal it shut to hold strong pressure.

Made with solid USA quality since 1943. Trust Milton for dependable workshop accessories. Get your two-pack today and keep working smooth.

Pros	Cons
Easy drain for quick water release. Fits 1/8″ NPT compressor tanks. USA-made for trusted quality. 2-pack gives extra value. Simple replacement for worn drain cocks.	Not universal: May not fit all compressor tank models. Small size: Easy to lose or misplace during maintenance. Manual operation: Requires frequent hands-on draining, no automation.

Perfect For:

This Milton S-614-2 1/8″ Compressor Tank Drain Cock is perfect for anyone fixing a leaky or broken drain cock on their compressor tank. It’s easy to install and made in the USA, making it ideal for DIYers, mechanics, or professionals who need a reliable replacement part.

Ready to Purchase?

View Price on Amazon (paid link)

3. Dorman 61109 Radiator Drain Cocks

The Dorman 61109 Radiator Drain Cocks is a direct replacement for your vehicle’s original part. It fits and works just like the factory equipment.

Made with quality materials, this part is built to last. Dorman’s 100+ years of experience ensures a reliable product.

Easy to install, tested for quality, and fits many vehicles. Check the Confirmed Fit bar to ensure it’s right for your car.

Pros	Cons
Perfect fit that works just like the original part. Made with strong materials that last a long time. Built by a trusted brand with years of skill. Tested well to make sure it works for you. Easy fit tool helps you find your right car.	Plastic parts can crack or break fast. The fit may be loose and cause leaks. Threads might strip if turned too hard.

Perfect For:

This Dorman 61109 Radiator Drain Cock is perfect for anyone needing a reliable replacement part. It’s easy to install and built to last, making it ideal for car owners who want quality and durability.

Ready to Purchase?

View Price on Amazon (paid link)

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

Stop a coolant leak fast. This radiator drain cock is a brand new part. It comes with a fresh washer for a tight seal.

Check your car model on the fitment chart. Get the exact match for a smooth repair.

It replaces part number 0005000185 and 05140661AA. It also replaces 17112247346 and 7L1Z8115A.

Pros	Cons
Perfect seal with the included washer. Easy to install with simple screw-in design. Stops leaks fast to keep cars safe. Brand new part for a fresh start. Fits well to make the job quick.	No tools included for installation. Washer may wear out over time. Compatibility check required before purchase.

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)

5. APDTY 72247 Radiator Drain Cock

Keep your vehicle cooling system in top shape with a brand new radiator drain cock. This simple part stops leaks and keeps your engine running smooth.

It features fine threads for a tight seal. The exact size makes swapping out the old plug fast and easy. It replaces many common OEM parts to save you time and money.

Always check the compatibility chart to ensure a perfect fit for your ride. Order yours today and enjoy a worry-free drive.

Pros	Cons
Brand new part for clean, fresh use. Exact fit with key thread sizes. Fine thread helps a tight, secure seal. Fits many vehicles with chart check. Direct replacement for several part numbers.	No included tools for installation. Limited compatibility with older vehicles. Small size may be easily lost during repairs.

Perfect For:

This radiator drain cock is perfect for car and truck owners who need a clean, exact fit part. It is also great for repair shops that want a simple, brand new replacement.

Ready to Purchase?

View Price on Amazon (paid link)

6. 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. The thread size is M14-20, and the overall length is 39.5mm.

This product works with Honda, Toyota, Mazda, and more. It’s a reliable replacement for your old drain plug. Always check the size before buying.

The Rexka drain plug is easy to install. It’s a great choice for car repairs. Get your 5-piece set today and keep your car running smoothly.

Pros	Cons
Fits many popular car brands easily. Strong M14-20 thread size for secure fit. Made to last with durable materials. Simple to install and replace quickly. Compact size fits tight spaces well.	Not a universal fit, check size before buying. Limited to specific models, may not work for yours. 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)

7. Dorman 61110 Radiator Drain Cocks

The Dorman 61110 Radiator Drain Cocks is a direct replacement for your vehicle’s original part. It matches the fit and function of the factory-installed component.

This part is built to last with quality materials. Dorman’s 100+ years of experience ensures reliable performance. Verify 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.	No tools included – you’ll need your own for installation. Not universal – may not fit all vehicle models. Basic design – lacks extra features or upgrades.

Perfect For:

This Dorman 61110 Radiator Drain Cock is perfect for anyone needing a reliable replacement for their vehicle’s radiator drain. It’s easy to install and built to last, making it ideal for DIY enthusiasts and car owners who want a hassle-free fix.

Ready to Purchase?

View Price on Amazon (paid link)

8. GM Genuine Parts 95018599 Radiator Drain Cock

Keep your engine cooling system running smooth and leak-free. This radiator drain cock is a real GM part made for your car. It offers a perfect fit and top quality you can trust.

General Motors engineers design these parts to last long. Upgrade your ride with the best original equipment today.

Pros	Cons
Perfect fit for your car. Stops leaks fast and easy. Strong parts that last long. Quick to fix by hand. Genuine parts you can trust.	Limited to GM vehicles, not universal. No DIY-friendly features, requires tools. Higher cost than aftermarket options.

Perfect For:

This radiator drain cock is perfect for car owners who want reliable, high-quality parts. It’s designed for Chevrolet, Buick, GMC, or Cadillac vehicles, making it a great fit for GM drivers.

Ready to Purchase?

View Price on Amazon (paid link)

9. APDTY 72244 Radiator Drain Cock

Fix your coolant leak fast with this brand new radiator drain cock. It fits your car like a glove. Swap your old part in minutes.

It replaces four top part numbers with ease. Get the exact fit you need today!

Pros	Cons
Brand new part for a fresh fit. Exact match helps with proper fit. Small size suits tight spaces well. Direct replacement for listed part numbers. Simple install for fast service.	No tools included for installation. Limited compatibility—check chart carefully. Small size may be easy to misplace.

Perfect For:

This APDTY 72244 Radiator Drain Cock 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)

10. Mazda Cock Drain Wl2115203

Mazda Cock Drain Wl2115203 is a genuine OEM drain plug for the cooling system. It is a direct replacement part made for Mazda.

It fits the right spot. It is part #6 on the diagram. You need 1 part.

Pros	Cons
Genuine OEM part ensures perfect fit and quality Direct replacement for easy installation Made by trusted Mazda brand Essential for cooling system maintenance Durable radiator component for long-lasting use	Limited to specific Mazda models, not a universal fit. Single-use part, requires replacement if damaged or lost. No installation tools included, extra purchase may be needed.

Perfect For:

This Mazda Cock Drain Plug is perfect for car owners who need a reliable replacement part. It’s easy to install and fits perfectly in your Mazda’s cooling system.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Keeping your car cool is key to a smooth ride. A reliable drain cock stops leaks and keeps your engine running well. We’ve picked the best automotive drain cocks to make your choice easy.

Buying the right drain cock is simple with our guide. We’ll help you find the perfect fit for your car. Let’s dive in and keep your vehicle running like new!

Factors to Consider When Buying:

Compatibility:
Check your car’s make and model before buying. Use the fitment chart to ensure it matches your vehicle.
Material:
Choose durable materials like brass or steel. They last longer and handle heat and pressure well.
Thread Size:
Match the thread size to your car’s needs. Wrong threads can cause leaks or damage.
Brand Reputation:
Trust known brands like Dorman, Milton, or GM. They offer quality and reliability.
Ease of Installation:
Look for parts that are easy to install. Save time and avoid frustration with user-friendly designs.
Price and Value:
Compare prices to find the best deal. Balance cost with quality for long-term savings.
Warranty:
Check for warranties or guarantees. They show the brand’s confidence in their product.

Enjoy a worry-free drive with the right drain cock. Pick one that fits your car and budget today!