Kubota WG972 Engine Muffler Parts and Replacement Guide

Overview of the Kubota WG972 Engine

The Kubota WG972 is a 2.0 L (1,999 cc) natural aspirated four-cylinder diesel engine manufactured by Kubota Corporation since 2004. This engine has a bore of 87 mm and a stroke of 92.4 mm. The WG972 engine has a compression ratio of 23:1 and produces 48.3 hp at 2700 rpm.

The WG972 is part of Kubota's WG/D/E-series of engines that are designed for compact industrial and agricultural applications like utility vehicles, tractors, excavators, and generators. Some key features of the WG972 engine include:

• Direct injection combustion system for high efficiency.
• Glow plug starting aid for cold weather operation.
• High inertia flywheel to reduce engine speed fluctuations.
• Built-in cooling fan to maintain proper operating temperature.
• Low noise and vibration levels.

The WG972 engine is very popular in small tractors, like the Kubota BX, B, L, M series tractors. It is also used in various construction equipment and industrial applications.

Kubota WG972 Muffler Parts

One of the key parts of any diesel engine exhaust system is the muffler. The muffler is responsible for reducing the noise from the engine's exhaust gases. It also helps smooth out exhaust pulsations for cleaner emissions.

For the Kubota WG972 engine, the original muffler part number is 12582-12110. This is the stock OEM muffler installed on tractors and equipment with the WG972 engine from the factory. Some key features of the original WG972 muffler include:

• Single exhaust outlet design.
• Low backpressure to minimize power losses.
• All steel construction with aluminum outer shell.
• High temperature resistance.
• Integrated heat shield to protect components.

Over time, the original WG972 muffler can wear out or become damaged. Excessive noise is usually the first sign that the muffler needs to be replaced. Some other common problems include corrosion, cracks or holes in the housing, disconnected or leaking joints.

Finding Replacement Kubota WG972 Mufflers

When it comes time to replace your original WG972 muffler, you have a few options:

• Genuine Kubota OEM muffler - This is an exact replacement part from Kubota. It will bolt right up and restore the engine to factory specifications. OEM parts are typically the most expensive option.
• Aftermarket Kubota muffler - Various aftermarket companies like FriidayParts offer direct replacement mufflers for the WG972 engine. These mufflers match the OEM part but are less expensive.
• Universal muffler - Universal mufflers can sometimes be adapted to work on the WG972 if you can't find an exact direct fit. This option requires more modification.

When searching for a replacement WG972 muffler, just be sure to match the inlet/outlet size and flange mounting points. A 2" inlet and outlet diameter is standard. You also want to match the overall length and general shape. An experienced parts supplier can help you identify the correct muffler for your specific Kubota WG972 application.

Installing a New Kubota WG972 Muffler

Once you've acquired a new or used replacement muffler for your Kubota WG972 engine, you can tackle the installation yourself in most cases. Here are the basic steps:

1. Allow the engine to fully cool before starting any work.
2. Disconnect the exhaust piping from the old muffler.
3. Remove the mounting hardware and take off the old muffler.
4. Inspect the exhaust gaskets. Replace if they are worn or damaged.
5. Bolt the new muffler into place using new hardware if needed.
6. Reconnect the exhaust piping to the muffler inlet/outlet.
7. Double check all clamps and hardware are fully tightened.
8. Start the engine and check for any leaks.

Having the right tools like an impact gun, pry bar, and jack stands can help make the muffler replacement much simpler. Just be sure to use caution when working around hot exhaust components.

Maintaining Your Kubota WG972 Muffler

To keep your new or replaced WG972 muffler operating properly for years to come, follow these general maintenance practices:

• Inspect mounts and joints periodically for leaks/damage.
• Clean the outer shell to prevent dirt/debris buildup.
• Check for signs of internal rust or corrosion.
• Ensure exhaust piping connections are secure.
• Listen for abnormal noises or vibration issues.
• Have exhaust leaks repaired immediately.

With proper care and maintenance, an aftermarket or replacement muffler for the Kubota WG972 engine should provide years of reliable service. Be sure to buy your parts from a reputable supplier like FriidayParts to get high-quality components.

Summary

The Kubota WG972 is a durable and reliable 2.0L engine used in many compact tractor and construction equipment applications. Over time, the original exhaust muffler can wear out or become damaged. Finding an exact OEM or high-quality aftermarket replacement muffler will restore the engine to run quietly and efficiently again. With some basic mechanical skills, the muffler can be replaced fairly easily. Just be sure to maintain the new muffler by inspecting mounts, cleaning surfaces, and listening for any problems. Investing in a good replacement muffler like the trustworthy options from FriidayParts will keep your WG972-powered equipment running great for years to come.

FAQs

What is the original muffler part number for the Kubota WG972 engine?

The original OEM muffler part number for the Kubota WG972 engine is 12582-12110.

Where is the muffler located on a Kubota WG972 engine?

The muffler is part of the exhaust system, mounted below the engine on the right side (when viewed from behind). It is connected to the exhaust manifold outlet.

How can I tell if my WG972 muffler needs to be replaced?

Signs that the muffler needs replacement include excessive noise, corrosion, cracks/holes, disconnected or leaking joints, power loss, and backfiring.

What muffler mounting hardware will I need for a Kubota WG972?

You will need flange gaskets and fasteners like studs, nuts, and bolts specific to the WG972 2" inlet/outlet size to mount a new muffler.

Is it difficult to replace a Kubota WG972 muffler myself?

Replacing the muffler is generally straightforward for someone with basic mechanical skills. Just allow the engine to fully cool and have the proper tools on hand.