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What size is the oil pan drain plug on a Duramax?


When it comes to maintaining your Duramax diesel engine, knowing the correct specifications for routine maintenance tasks is crucial. One common question among Duramax owners is about the size of the oil pan drain plug. In this article, we’ll provide a detailed answer and some tips to make your oil change process smoother.


The Standard Size of the Oil Pan Drain Plug


The oil pan drain plug on most Duramax diesel engines is typically a 14mm hex head bolt. However, it’s important to note that the thread size is usually M14 x 1.5. This means the bolt has a 14mm diameter with a thread pitch of 1.5mm. Always double-check your vehicle’s manual or consult a trusted mechanic to confirm the specifications for your specific model year.


Why Knowing the Correct Size Matters


Using the wrong size tool or replacement part can lead to stripped threads, oil leaks, or even damage to the oil pan. Here’s why it’s important to get it right:



  • Prevents Damage: Using the correct size ensures you don’t strip the bolt or the oil pan threads.

  • Ensures a Proper Seal: The right size plug and washer create a tight seal, preventing oil leaks.

  • Saves Time and Money: Avoid unnecessary repairs caused by improper tools or parts.


Tips for Changing the Oil on a Duramax


Changing the oil on a Duramax diesel engine can be straightforward if you follow these tips:



  • Use the Right Tools: A 14mm wrench or socket is typically required for the drain plug. Ensure you have a torque wrench to tighten the plug to the manufacturer’s specifications, usually around 18-20 ft-lbs.

  • Replace the Washer: Always replace the crush washer or gasket on the drain plug to ensure a proper seal.

  • Warm Up the Engine: Run the engine for a few minutes before draining the oil. Warm oil flows more easily, making the process quicker.

  • Dispose of Oil Properly: Collect the used oil in a pan and take it to a recycling center. Never dispose of oil improperly.


When to Seek Professional Help


If you’re unsure about the process or encounter any issues, it’s always a good idea to consult a professional mechanic. At Kevin’s Autos, we specialize in oil changes and routine maintenance for all types of vehicles, including Duramax diesel engines. Our experienced team can ensure your vehicle is serviced correctly and efficiently.


For more tips and expert advice, visit our blog at kevinsautos.com or contact us directly for assistance with your vehicle maintenance needs.


Frequently Asked Questions

What size socket is the oil drain plug on a 2005 Duramax?


Sixteen mm socket
HelloCustomerTo remove the oil drain plug you will need to use a Sixteen mm socket.



What size wrench do I need to remove the oil drain plug?


What size wrench to use for an oil drain plug depends on the size of the oil drain plug itself, which is a long bolt head. There is no universal oil plug size, but they do come in just a few several standard sizes, such as ¼ inch (. 6 centimeters), 3/8 inch (. 9 centimeters), ½ inch (1.3 centimeters), etc.



What size socket do I need to remove an oil pan plug?


3/8-inch
Place a 3/8-inch (0.9 centimeters) socket in the socket wrench, fit it over the drain plug's nut and turn it counterclockwise. The oil drain plug should open easily, draining the used oil from the engine. Make sure to place a bucket and some newspaper under the car's engine to catch all the draining oil.



What size is a Duramax oil drain plug?


Product specifications

Product Dimensions6 x 6 x 4 inches
Item Weight‎2.08 ounces
ASIN‎B01LOFPPH2
Item model number‎114052001
Customer Reviews4.7 out of 5 stars 138Reviews



How many quarts of oil does the 6.6 Duramax hold?


The 6.6 liter Duramax oil capacity is 10 quarts — a massive amount of oil. While oil capacity is one thing to consider when dealing with your engine oil, there's much more to think about, like other Duramax fluid capacities, oil factors and unique performance needs.



How much oil does a 6.6 Duramax hold?


10 quarts
The 6.6 liter Duramax oil capacity is 10 quarts — a massive amount of oil. While oil capacity is one thing to consider when dealing with your engine oil, there's much more to think about, like other Duramax fluid capacities, oil factors and unique performance needs.



What size wrench for Silverado oil drain plug?


15mm
The Oil pan drain bolt is a 15mm wrench size.



What size socket is a GM drain plug?


If you mean the wrench size, 15mm. Tighten to 225 inch lbs. Yep, 15 MM.



What size is a plug socket?


Spark plug sockets are used to lighten and loosen spark plugs, helping you change them without damaging the plug or any wiring. Spark plug sockets come in various sizes, ranging from 9/16 inches to 7/8 inches. The most common spark plug socket sizes are 5/8 inches and 13/16 inches.



What size is the oil drain plug bolt?


What size wrench to use for an oil drain plug depends on the size of the oil drain plug itself, which is a long bolt head. There is no universal oil plug size, but they do come in just a few several standard sizes, such as ¼ inch (. 6 centimeters), 3/8 inch (. 9 centimeters), ½ inch (1.3 centimeters), etc.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.