Back UP ring / 85 x 70.50 x 25 mm / Yanmar EF453T / Cub Cadet EX450 / 198133-43360 / 5-18-108-10

Seal ring (sealer 5-21-123-04 , 198133-4330) of the three-point linkage hydraulic lift piston with an internal diameter of 70.50 mm , an external diameter of 85 mm and a height of 25 mm for Yanmar tractors of the Yanmar EF453T series, Cub Cadet series, Cub Cadet EX450 series and others.

A retaining ring is a rigid ring, usually made of plastic, that protects O-ring seals against damage caused by the high pressure and temperature inside the hydraulic system during operation. Back-up-ring is a ring whose main task is to prevent the O-ring from being pressed into the gap between the sealed surfaces and protects the sealant against shape changes that may occur when high pressure and temperature are applied to the seal. If the pressure acts on the O-ring from two directions, we use a resistance ring on both sides of the O-Ring seal.

Dimensions :

• outer diameter: 85 mm.
• inner diameter: 70.50 mm.
• height: 25 mm,
• original part numbers: 198133-43360,
• part numbers: 5-18-108-10.

Tractor models :

Yanmar :

• Yanmar EF453T.

Cub Cadet :

• Cub Cadet EX450.

Magazine :
M01:A41:S01