6V-5066 O-ring for CAT engine spare part

6V-5066 O-ring for CAT engine spare part Featured Image
  • 6V-5066 O-ring for CAT engine spare part
  • 6V-5066 O-ring for CAT engine spare part

Short Description:

EPDM O-ring for Caterpillar 3508/3512/3516/3608 engine cooling system, inner diameter 85.09 mm, cross-section 5.33 mm, static seal for coolant and air circuit, prevents coolant and air leakage.

Product Detail

Product Tags

description

This O-ring is made of EPDM ethylene propylene diene monomer, good resistance to glycol coolant, hot water steam and ozone. It is designed for cooling circuit and aftercooler sealing. It fills groove clearance by elastic compression, with stable aging and extrusion resistance. Swelling, cracking, nicks and elasticity loss will lead to coolant leakage and air ingress, causing engine overheat and power loss, even cylinder liner damage.

Part No.:6V-5066
Type: O-ring seal
Material: EPDM, Shore A70
Inner Diameter:85.09 mm
Cross-section Diameter:5.33 mm
Color: Black
Sealing Type: Static sealing, limited low-pressure dynamic sealing for cooling and air line
Compatible Medium: Glycol coolant, hot water, air, steam
Not for: Diesel fuel, mineral hydraulic oil, ester lubricant
Working Condition: Medium temperature and low pressure for engine cooling and aftercooler
Matching System: Engine cooling circuit, aftercooler assembly

Application Scenarios

Fits Caterpillar 3508, 3512, 3516, 3520, 3608, 3612, 3616 large diesel engines, for overhaul of aftercooler, thermostat housing, cooling flange and radiator connection.

FAQ 

Q：Can this EPDM seal be used for hydraulic oil or diesel?
A：No. EPDM is incompatible with mineral oil and will swell rapidly.

Q：Can whitened O-ring soaked in coolant be reused?
A：Not recommended. Whitening means aging and elasticity loss, easy to leak under pressure.

Q：What happens if ordinary grease is used to lubricate EPDM ring?
A：Mineral oil attacks EPDM and causes swelling and leakage.

Q：Will new O-ring stop leakage if flange has tiny pinholes after polishing?
A：No. Pinholes form permanent leakage path, repair or replace the flange.

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