- In addition, the A5RTC spark plug is easy to install and replace, making it a convenient option for both professional mechanics and DIY enthusiasts. Its compatibility with a wide range of engines also makes it a versatile choice for various applications.
Material Code ISO 1629
Range of Wilmink Engine Parts

spark plug 794 055a. A properly functioning spark plug ensures that the air-fuel mixture is burned efficiently, maximizing the power output of the engine. This leads to better fuel economy and lower emissions, contributing to a cleaner and more environmentally friendly driving experience.
Full synthetic oil is ideal for vehicles that demand peak level performance and high levels of lubrication. Full synthetic oil provides higher viscosity levels, resistance to oxidation and thermal breakdown, and helps fight against oil sludge. Plus, it helps improve fuel efficiency and can even increase a vehicle’s horsepower by reducing engine drag.
The material of the sealing lip is chosen according to the liquid to be sealed and the rotational speed. For larger shafts, an NBR sealing lip can cope with surface speeds of up to 10-12 m/s, while an FKM lip is suitable for speeds of up to 35-38 m/s.
Proper techniques and diligence during oil seal installation will result in what seems like an unremarkable situation – a component holding its lubrication. When something you’ve installed works effectively and quietly, you know you’ve done it right.
This is almost similar to that of ‘A’ type seal. But this has the metal case placed outside. When the housing is rough, temperature is high and working conditions are severe, this type is preferred
② Spring code
The basic principle of sealing is straightforward – the flexible lip is held against the rotating part (usually the shaft) whilst the casing (or O.D.) is pressed into the housing or bore and holds the seal in place. The sealing lip needs some form of lubrication to avoid overheating and is usually energized by means of a garter spring.
Use a piece of wood to scrape off all traces of the old gasket from the head and cover. If total removal proves difficult, use a broad screwdriver blade, but take care not to scratch the seating.

In addition to their performance benefits, Mico spark plugs are also easy to install and maintain. With their user-friendly design, you can quickly replace your old spark plugs with Mico spark plugs without any hassle. Regular maintenance of your spark plugs, including cleaning and replacing them when necessary, will help ensure the continued efficiency of your vehicle's engine.