Type code
- In conclusion, the spark plug valve cover gasket, despite its seemingly minor status, is a vital element in maintaining your vehicle's health and performance. It's a small part with a significant responsibility, ensuring that your engine runs smoothly, efficiently, and without unnecessary interruptions. Remember, prevention is always better than cure, so keep an eye on this often-overlooked component for a well-functioning and reliable vehicle.
Plug tube gasket
- 3. Sealant Application Apply a sealant to the gasket surface to enhance the sealing performance. Use a silicone-compatible sealant that is recommended by the gasket manufacturer.
Prepare the shaft and prevent damage
J: Additional code is added here as an identifier when two or more seals have exactly the same type codes and dimensional numbers.
Notes
* JIS: Japanese Industrial Standard
✓: Compatible
✗: Incompatible
―: Not applicable

OIL SEALS
What Are Oil Seals?
Today, traditional oil seals have to compete with a new variant oil seal, which is used in most modern engines.
However, the new variant also comes with less good properties. Namely less flexibility and less resistance during assembly. Most damages therefore occur during the installation of PTFE oil seals.
What Are Oil Seals?
Oil seals increasingly had to meet higher requirements, which is why PTFE was developed in 1980. This variant can better withstand higher engine speeds, higher oil temperatures, longer oil intervals and modern lubricants. In addition, the oil seal contains a wider contact surface, which ensures less wear.
NBR
INTEGRATED OIL SEALS
Leather is probably the oldest of the lip materials still in common use, but the move towards mass production methods has seen a massive increase in the development of synthetic rubbers which lend themselves to accurate and repeatable injection and compression moulding. Nitrile (NBR) is still by far the most common elastomer for “normal” use, whilst Viton® (FKM/FPM) is rapidly replacing Polyacrylate (ACM) and Silicone (VMQ) for high-temperature applications. Viton® also has high resistance to abrasion and chemical attack making it a preferred elastomer. Recent developments in the use of PTFE for Rotary shaft seals has caused widespread interest particularly for high-speed shaft rotation or poor lubrication applications.

oil seal 12 22 5.