Best Radiator Drain Screws With Washers

Looking for the best radiator drain screws with washers for a secure, leak-free fit?
You’ll get a simple list of top-quality options that make maintaining your vehicle easier and more reliable.

Keeping your car’s cooling system in top shape is key to a smooth ride. A reliable radiator drain screw with a washer is a small part that makes a big difference. It stops leaks, ensures a tight seal, and keeps your engine cool.

No more messy leaks or overheating worries. These screws are easy to install and built to last. They fit perfectly and work hard to keep your car running smoothly.

Finding the right part can feel tricky, but we’ve got you covered. Our guide highlights the best radiator drain screws with washers on the market. Get ready to discover the perfect fit for your vehicle and drive with confidence.

List of Top 10 Radiator Drain Screws With Washers

Title	Best For	Price
ECSiNG 2pcs Car Radiator Drain Plug Screw Bolt 5000185 05098834AA Compatible with Mercedes-Benz 124 1984-1993 190 1982-1993	This radiator drain plug is perfect for car owners who want an easy and reliable fix. It fits many Mercedes-Benz models and helps stop leaks to keep your engine safe. With two pieces included, you get a main part plus a spare for quick maintenance.	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, making it ideal for DIY repairs.	View on Amazon (paid link)
1 Set 4 Pcs Vent Screw Plug Coolant Expansion Tank Bleeder Screw Radiator Drain Screw with O-Ring Washer for Radiator Air Overflow System	This 4-piece vent screw plug set is perfect for car owners who want to upgrade their radiator system. It’s easy to install and built to last, making it ideal for anyone looking for reliable car maintenance.	View on Amazon (paid link)
URO Parts 17111437360 Radiator Adjusting Screw w/Drain Plug, For compatible models with AUTOMATIC transmission	This URO Parts Radiator Adjusting Screw is perfect for BMW owners with automatic transmission models from 1999 to 2006. It’s easy to install and built to last, ensuring leak-free performance for your car’s cooling system.	View on Amazon (paid link)
Radiator Coolant Expansion Tank Bleeder Screw, Radiator Drain Plug, 17111712788 Coolant Air Bleeder Screw with Rubber O-Ring, Car Accessories Radiator Screws Compatible with X1 X3 X5	This product is perfect for drivers who want safe, smooth engine performance. It’s great for anyone who needs a strong, easy‑fit screw to keep their coolant system sealed and stable.	View on Amazon (paid link)
Briny River 2X Car Radiator Drain Screw Seals 1H0121687A Compatible with Audi A1 A3 TT Q2 Q3	This product is perfect for Audi owners who want to prevent water tank leaks. It’s easy to install and works great for Audi A1, A3, TT, Q2, and Q3 models.	View on Amazon (paid link)
INFINAUTO Car Engine Shield Cover Bolt 90105-TBA-A00 Cover Bolt Pin Screws for Honda Accord CRV Civic (Pack of 4) Stylish Design	This product is perfect for Honda and Acura owners who need a reliable and stylish replacement for their engine cover bolts. It’s ideal for DIY repairs and upgrades.	View on Amazon (paid link)
BRRNOO Radiator Bleeder Kit, Radiator Drain Petcock 17111712788 Coolant Overflow Expansion Tank Bleed Screw Washer Coolant Bleeder Kit Replacement for E46 E92 E90 E36 E39	This is perfect for BMW owners who need a fast, easy fix for a bad bleeder valve. It is also great for anyone who wants a strong brass replacement that fits E46, E92, E90, E36, and E39 models.	View on Amazon (paid link)
Radiator Bleeder Kit, Radiator Drain Petcock Coolant Bleeder Kit Coolant Overflow Expansion Tank Bleed Screw Washer 17111712788 Replacement for E46 E92 E90 E36 E39	This Radiator Bleeder Kit is perfect for car owners who want a reliable and easy fix for their cooling system. It’s ideal for E46, E92, E90, E36, and E39 models, offering a durable and direct replacement that saves time and effort.	View on Amazon (paid link)
Dorman 61145: Radiator Drain Cock Screw-In Type With Washer	The Dorman 61145 Radiator Drain Cock Screw-In Type With Washer is perfect for vehicle owners and repair technicians who want a reliable and cost-effective solution for their radiator needs.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 Radiator Drain Screws With Washers, handpicked for quality, durability, and value. Each product is expert-reviewed and backed by customer feedback, ensuring you find the perfect fit for your vehicle. Dive in to find the best solution for a leak-free, efficient cooling system.

1. ECSiNG 2pcs Car Radiator Drain Plug Screw Bolt 5000185 05098834AA Compatible with Mercedes-Benz 124 1984-1993 190 1982-1993

Keep your engine cool. This drain plug fits perfectly.

Stop messy leaks now. The screw bolt seals tight.

Fix your car fast. These durable parts last long. Get two pieces today.

Pros	Cons
Fits your car with a tight match. Stops bad leaks to keep your engine safe. Built tough to stand up to high heat. Comes with two so you have a spare. Easy to swap in for a fast fix.	Plastic may crack easily. Fit is not always tight. Soft head strips fast.

Perfect For:

This radiator drain plug is perfect for car owners who want an easy and reliable fix. It fits many Mercedes-Benz models and helps stop leaks to keep your engine safe. With two pieces included, you get a main part plus a spare for quick maintenance.

Ready to Purchase?

View Price on Amazon (paid link)

Best Screw-In Radiator Drain Valves

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

This radiator drain cock is strong. It fits screw-in holes perfectly.

The part includes a washer that stops all leaks. It matches your vehicle for an exact fit.

Installation is fast. The plug fits well. It stays secure.

Pros	Cons
Easy screw-in fit for fast use Strong build for long life Works with many vehicle models Replaces worn parts with ease Keeps your radiator safe	Fits only certain vehicles; check compatibility carefully Installation needs tools; not always quick or easy May require extra care to avoid leaks or damage

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, making it ideal for DIY repairs.

Ready to Purchase?

View Price on Amazon (paid link)

3. 1 Set 4 Pcs Vent Screw Plug Coolant Expansion Tank Bleeder Screw Radiator Drain Screw with O-Ring Washer for Radiator Air Overflow System

This radiator screw set is made to last. It has a strong build and good surface treatment. You get a reliable part for your car.

It is easy to install and saves you time. The wear-resistant plastic makes it a smart choice.

Check the OEM number for perfect fit. We offer quick support if you have questions. Get a hassle-free replacement today.

Pros	Cons
Strong O-rings stop all leaks fast. The tough plastic lasts a long time. Use a small tool to turn them. Get four parts for a low price. They fit well and work like new.	No tools included for installation. Limited compatibility—check OEM number first. Plastic parts may not last long-term.

Perfect For:

This 4-piece vent screw plug set is perfect for car owners who want to upgrade their radiator system. It’s easy to install and built to last, making it ideal for anyone looking for reliable car maintenance.

Ready to Purchase?

View Price on Amazon (paid link)

4. URO Parts 17111437360 Radiator Adjusting Screw w/Drain Plug, For compatible models with AUTOMATIC transmission

The URO Parts Radiator Adjusting Screw is perfect for BMW owners. It fits 1999-2006 models with automatic transmission.

Easy to install, no leaks, and strong material. It works reliably in all cooling conditions.

Quality checked at every step, it comes with a 24-month warranty. Peace of mind for your BMW’s cooling system.

Pros	Cons
BMW E46, E83, and Z4 M54 with AUTOMATIC transmission Easy bolt-on install with factory drain plug size Made from strong, corrosion-resistant material Seals reliably at all cooling system temperatures Backed by 24 Month / Unlimited Mileage Warranty	Only works on automatic models Not for manual cars Requires exact fit to avoid issues

Perfect For:

This URO Parts Radiator Adjusting Screw is perfect for BMW owners with automatic transmission models from 1999 to 2006. It’s easy to install and built to last, ensuring leak-free performance for your car’s cooling system.

Ready to Purchase?

View Price on Amazon (paid link)

5. Radiator Coolant Expansion Tank Bleeder Screw, Radiator Drain Plug, 17111712788 Coolant Air Bleeder Screw with Rubber O-Ring, Car Accessories Radiator Screws Compatible with X1 X3 X5

Radiator Coolant Expansion Tank Bleeder Screw, Radiator Drain Plug, 17111712788 Coolant Air Bleeder Screw with Rubber O-Ring, Car Accessories Radiator Screws Compatible with X1 X3 X5

The bleeder screw keeps your engine safe. It helps control pressure and heat in the coolant tank. The strong rubber O‑ring locks in place to stop leaks.

The copper build lasts a long time. It fits many X‑series and other models.

Pros	Cons
Strong metal stops rust and lasts long. Tight rubber ring stops all air leaks. Stops engine heat to keep you safe. Fast and easy to twist right in. Fits your car with a perfect seal.	Limited fit for some car models Needs careful check of the OEM number Small part can be easy to lose

Perfect For:

This product is perfect for drivers who want safe, smooth engine performance. It’s great for anyone who needs a strong, easy‑fit screw to keep their coolant system sealed and stable.

Ready to Purchase?

View Price on Amazon (paid link)

6. Briny River 2X Car Radiator Drain Screw Seals 1H0121687A Compatible with Audi A1 A3 TT Q2 Q3

Briny River 2X Car Radiator Drain Screw Seals fit Audi A1, A3, TT, Q2, and Q3. They match OEM 1H0121687 and 1H0121687A. The rubber seal helps stop leaks.

Each seal has a 35 mm outer diameter, 28 mm inner diameter, and is 3.5 mm thick. It is easy to install and built for oil resistance and long life.

Pros	Cons
Fits many Audi models with ease. Durable rubber fights oil and age. Helps stop leaks fast and clean. Simple press fit saves time. OEM match supports a solid seal.	Fit may be too narrow for some models. Rubber can still wear over time. Small part may be easy to lose.

Perfect For:

This product is perfect for Audi owners who want to prevent water tank leaks. It’s easy to install and works great for Audi A1, A3, TT, Q2, and Q3 models.

Ready to Purchase?

View Price on Amazon (paid link)

7. INFINAUTO Car Engine Shield Cover Bolt 90105-TBA-A00 Cover Bolt Pin Screws for Honda Accord CRV Civic (Pack of 4) Stylish Design

This pack of four INFINAUTO engine cover bolts keeps your car parts safe and secure. They fit Honda and Acura models with ease.

They hold the lower engine cover in place. They stop the cover from moving. They keep your drive smooth.

Each bolt is made of strong galvanized steel for long use. Installation is simple and fast. You get four bolts ready to go.

Pros	Cons
Fits Honda Civic, CRV, Accord, Acura ILX, RLX, TLX. Secures engine oil pan drain plug access cover firmly. Durable galvanized steel, resists rust and deformation. Easy installation, no special tools needed.	Only 4 pieces; may not fit all needs. Fit is limited to select Honda/Acura models. Plain parts; no extra style or features.

Perfect For:

This product is perfect for Honda and Acura owners who need a reliable and stylish replacement for their engine cover bolts. It’s ideal for DIY repairs and upgrades.

Ready to Purchase?

View Price on Amazon (paid link)

8. BRRNOO Radiator Bleeder Kit, Radiator Drain Petcock 17111712788 Coolant Overflow Expansion Tank Bleed Screw Washer Coolant Bleeder Kit Replacement for E46 E92 E90 E36 E39

BRRNOO Radiator Bleeder Kit, Radiator Drain Petcock 17111712788 Coolant Overflow Expansion Tank Bleed Screw Washer Coolant Bleeder Kit Replacement for E46 E92 E90 E36 E39

The BRRNOO Radiator Bleeder Kit is a must-have for car owners. It’s made from solid brass, ensuring durability and longevity. This kit is designed to handle harsh conditions with ease.

It meets OEM specifications, replacing part 17111712788 perfectly. The direct substitution makes repairs simple and efficient.

This kit is ideal for E46, E92, E90, E36, and E39 models. It offers a reliable solution for coolant system maintenance. Save time and effort with this easy-to-install kit.

Pros	Cons
Solid brass for long, tough use. OEM fit for easy matching. Direct replacement saves time and effort. Quick install with simple steps. Fits many BMW models well.	Fit may need extra check. Brass can still wear over time. Install is simple, but leaks can happen.

Perfect For:

This is perfect for BMW owners who need a fast, easy fix for a bad bleeder valve. It is also great for anyone who wants a strong brass replacement that fits E46, E92, E90, E36, and E39 models.

Ready to Purchase?

View Price on Amazon (paid link)

9. Radiator Bleeder Kit, Radiator Drain Petcock Coolant Bleeder Kit Coolant Overflow Expansion Tank Bleed Screw Washer 17111712788 Replacement for E46 E92 E90 E36 E39

Radiator Bleeder Kit, Radiator Drain Petcock Coolant Bleeder Kit Coolant Overflow Expansion Tank Bleed Screw Washer 17111712788 Replacement for E46 E92 E90 E36 E39

Keep your engine cool with the Radiator Bleeder Kit. It is made from solid brass for long-lasting strength. This kit fits perfectly with your car’s needs.

Installation is quick and easy. It replaces old parts without hassle. The kit matches original factory specs for a perfect fit.

This kit works with E46, E92, E90, E36, and E39 models. It’s the right choice for a smooth ride.

Pros	Cons
Brass build ensures durability and long-lasting performance. OEM specs guarantee perfect fit for your vehicle. Easy installation saves time and effort. Direct replacement restores optimal vehicle performance.	May not fit vehicles outside listed models Requires basic tools for installation Limited to specific OEM replacement number

Perfect For:

This Radiator Bleeder Kit is perfect for car owners who want a reliable and easy fix for their cooling system. It’s ideal for E46, E92, E90, E36, and E39 models, offering a durable and direct replacement that saves time and effort.

Ready to Purchase?

View Price on Amazon (paid link)

10. Dorman 61145: Radiator Drain Cock Screw-In Type With Washer

Dorman 61145 is a screw-in type radiator drain cock with a washer. It’s designed to replace old or damaged parts easily. This product ensures a tight seal to prevent leaks.

Our team focuses on customer value in every product. We aim to save time and money for vehicle owners. Our engineers and designers work hard to make repairs simpler.

This drain cock is reliable and durable. It’s a smart choice for your vehicle’s cooling system. Trust Dorman for quality solutions.

Pros	Cons
Stops leaks with a tight seal every time. It fits like the original part for your car. The strong washer prevents any messy drips. Fast and easy to install by yourself. Built with tough plastic that will last long.	No universal fit, may not work for all radiators. Requires tools for installation, not plug-and-play. Washer included, but extra parts may still be needed.

Perfect For:

The Dorman 61145 Radiator Drain Cock Screw-In Type With Washer is perfect for vehicle owners and repair technicians who want a reliable and cost-effective solution for their radiator needs.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Keep your car cool and leak-free. A good radiator drain screw with a washer is key.

Buying the right one is easy with this guide. We’ll help you find the perfect fit for your car.

Here’s what to look for:

Compatibility: Make sure the screw fits your car’s make and model. Check the OEM number for a perfect match.
Material: Choose screws made from strong materials like brass or galvanized steel. They last longer and handle heat well.
Seal Quality: Look for a tight seal with a washer or O-ring. This stops leaks and keeps your engine safe.
Ease of Installation: Pick screws that are easy to install. Save time and avoid frustration.
Durability: Go for wear-resistant parts. They handle tough conditions and last longer.
Warranty: A warranty gives peace of mind. It shows the product is reliable.
Price: Compare prices to find the best value. Quality doesn’t always mean expensive.

With these tips, you’ll find the best radiator drain screw with washer for your car. Drive with confidence and keep your engine cool.