MD125940 MITSUBISHI Spark Plug Tube Seal

Review MITSUBISHI Genuine Spark Plug Tube Seal

Mitsubishi MD125940 Spark Plug Tube Seal

The Mitsubishi MD125940 Spark Plug Tube Seal is a crucial component in the engine combustion system of select Mitsubishi vehicles. Designed to provide an effective seal between the spark plug tube and the cylinder head, this part plays a vital role in maintaining compression and preventing the loss of engine gases.

Constructed from high-quality materials, this spark plug tube seal offers enhanced durability and resistance to wear and tear. Its unique design ensures a snug fit into the spark plug tube, creating a tight seal that prevents the intrusion of harmful external elements like oil and coolant into the combustion chamber.

This OEM (Original Equipment Manufacturer) part is specifically engineered for vehicles equipped with the MD125940 spark plug tube. By utilizing the exact same specifications and dimensions as the original equipment, the Mitsubishi MD125940 Spark Plug Tube Seal guarantees a perfect fit and optimal performance.

Installing this part is a straightforward process, typically involving the removal of the old seal and the replacement with the new one. It is essential to ensure that the new seal is properly seated to achieve a secure and effective seal.

In summary, the Mitsubishi MD125940 Spark Plug Tube Seal is an essential component for maintaining the overall performance and efficiency of your Mitsubishi engine. By providing a reliable seal between the spark plug tube and the cylinder head, this part helps to ensure that your engine runs smoothly and efficiently, reducing the risk of costly repairs and prolonging the life of your vehicle.

Buying a Mitsubishi MD125940 spark plug tube seal can be an essential part of maintaining the proper functioning of your vehicle's ignition system. Here are some pros and cons to consider before making a purchase.

1. Improved Engine Performance: A leaking spark plug tube seal can cause a loss of compression and result in misfires. Replacing the seal can help improve your engine's performance and fuel efficiency.

2. Prevents Engine Damage: A leaking seal can allow coolant or oil into the combustion chamber, leading to engine damage. Replacing the seal can help prevent costly repairs down the road.

3. Easy and Affordable Fix: Replacing a spark plug tube seal is generally a straightforward repair that can be done at home or at a relatively low cost at a repair shop.

1. Potential for Ongoing Leaks: If the root cause of the leak is not addressed, such as a worn-out gasket or cracked cylinder head, the new seal may not prevent future leaks.

2. Requires Disassembly: To replace the spark plug tube seal, you will need to remove the intake manifold or cylinder head, which can be a time-consuming and complex process.

3. Risk of Damaging Other Components: During the removal and installation of the seal, there is a risk of damaging other components, such as the intake valves or spark plugs.

Replacing a faulty Mitsubishi MD125940 spark plug tube seal can help improve engine performance, prevent engine damage, and is generally an affordable and straightforward repair. However, it is essential to ensure that the root cause of the leak is addressed to prevent future issues. If you are not comfortable performing the repair yourself, it is recommended to take your vehicle to a professional mechanic.

If you are experiencing symptoms of a leaking spark plug tube seal, such as misfires or engine performance issues, it is recommended to replace the seal as soon as possible to prevent further damage to your engine. It is also a good idea to have your mechanic inspect the condition of other related components, such as the gasket and cylinder head, to ensure that they are in good working order.

Details:

Electrical parts are not returnable. Shipping carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging. Genuine Mitsubishi spark plug tube seal MD125940: parts: to 05/92.

specifications ignitioncomp:

• brand: Mitsubishi
• mpn: Md125940
• part type: Spark Seal Plug Tube
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• year: 1989 1990 1991 1992

payments ignitioncomp:

• credit card: mastercard
• other
• wallet: paypal

offer ignitioncomp:

• availability: in stock
• started: may 11, 2026
• options: ship-to-home
• prices: $12.84–$36.00
• item condition:
  • New other (see details)
  • Neu
  • New
  • Brand New
• in stock #: 5
• sold #: 8

shipping ignitioncomp:

• class: standard
• carrier: fedex
• service: fedex ground / fedex home delivery
• type: fixed
• transit: 5-11 days

general ignitioncomp:

• category: Auto Parts > Car Truck Accessories > Ignition Systems Components

returns ignitioncomp:

• time: 30 days
• paid by: seller
• policy: returns accepted

seller ignitioncomp:

• # reviews: 1360
• city: elkton, maryland
• rating: 99.7%