Genuine Koil Wool (Boji Wool) for Jack GS3

Product description:

This part, known as the spark plug tube seal , is a small ring of heat- and oil-resistant rubber that fits inside the cylinder head cover (valve cap) at the spark plug holes. Its primary function in the JAC GS3 is to prevent engine oil from leaking from inside the cylinder head to the outside around the spark plugs or ignition coils. This seal ensures that the spark plug heads and coils do not become contaminated with oil, thus maintaining ignition efficiency and electrical wiring insulation.

Benefits and features:

• Prevents oil leakage: Provides a tight seal that prevents engine oil from entering the spark plug pipes or accumulating around the coils.
• Ignition system protection: Prevents spark plug heads from becoming contaminated with oil, thus maintaining spark strength and ignition efficiency and preventing short circuits.
• High heat resistance: Designed with a special rubber that withstands very high temperatures inside the valve cover without hardening or cracking.
• Supporting engine efficiency: Keeping spark plugs and coils clean ensures complete fuel combustion and stable engine operation.

Specifications:

• Item Name: Spark Plug Tube Seal / Spark Plug Tube Seal.
• Vehicle model: JAC GS3.
• Side: It is fixed inside the cylinder head cover (valve cover).
• Condition: New.
• Type: Original.

If you notice oil accumulating around the top of the spark plugs or on the ends of the coils when you unscrew them, or smell burning oil coming from the engine area, this indicates damage or hardening of the coil seals and the need for replacement, and it is often recommended to change them as part of a complete kit.

⚠️ Important Notice: Please make sure the part matches your vehicle's chassis number before purchasing the product or after ordering.