E4992 2.0L ZETEC Engine Piston Rings , High Performance Oil Piston Ring

What is a piston ring

A piston ring is a split ring that fits into a groove on the outer diameter of a piston in a reciprocating engine such as aninternal combustion engine or steam engine.

Most automotive pistons have three rings: The top two while also controlling oil are primarily for compression sealing (compression rings); the lower ring is for controlling the supply of oil to the liner which lubricates the piston skirt and the compression rings (oil control rings). At least two piston rings are found on most piston and cylinder combination. Typical compression ring designs will have an essentially rectangular cross section or a keystone (right angled trapezoidal) cross section. The periphery will then have either a barrel profile (top compression rings) or a taper napier form (second compression rings or scraper rings). There are some taper faced top rings and on some old engines simple plain faced rings were used.

Piston Rings critical quality

The piston might be a fairly loose fit in the cylinder. If it were a tight fit, it would expand as it got hot and might stick tight in the cylinder. If a piston sticks (seizes) it could cause serious damage to the engine. On the other hand, if there is too much clearance between the piston and cylinder walls, much of the pressure from the burning gasoline vapour will leak past the piston (a condition known as blow-by) and into the crankcase, and the push on the piston from combustion will be much less effective in delivering power.

Product Description

Maojia Industry’s premium piston rings are manufactured from the highest quality materials and superior steel, covering the most popular applications in the global aftermarket. Maojia Industry’s piston rings are designed to meet OE standard with the perfectly match for each application.

Maojia Industry’s piston rings advantages

1. Years of OEM experience in China and overseas.

2. High quality material and superior steel.

3. Specification perfectly match different engine.

4. Experienced engineers and technical team.

5. Advanced manufacturing equipment, R&D software and test machine.

6. 100% tested for size and performance before shipment.