Accumulator 1866189 for Caterpillar Equipment

Accumulator 1866189 is a refrigerant storage tank for the air-conditioning and HVAC systems of heavy equipment manufactured by Caterpillar. It is used in the HVAC system to store refrigerant and is supplied as an accumulator assembly consisting of a carbon steel accumulator, clamp, and seal.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The accumulator is used on the following Caterpillar equipment models. The listed applications include integrated toolcarriers, wheel-type loaders, and excavators with HVAC systems.

• Integrated Toolcarrier:
  • IT28G
  • IT62G
  • IT62G II
  • IT62H
• Wheel-Type Loader:
  • 924G
  • 924GZ
  • 928G
  • 930G
  • 950G
  • 950G II
  • 950H
  • 962G
  • 962G II
  • 962H
  • 966G
  • 966G II
  • 966H
  • 972G
  • 972G II
• Excavator:
  • 317B L
  • 317B LN
  • 318B
  • 318B N
  • 322B L
  • 325B L
  • 325C FM
  • 325D FM LL
  • 330B L
  • 330C FM
  • 330D FM
  • 345B
  • 345B II
  • 345B II MH

Fitment should be checked against the equipment model and the part number installed in the HVAC system. The models above are the applications specified for accumulator 1866189 in the available product data.

Cross-reference numbers

• 186-6189
• 1866189

Part number 186-6189 is the hyphenated form of SKU 1866189 and identifies the same accumulator assembly.

Specifications

Both accumulator fittings use an O-ring connection with an internal 1-1/16-16-2B UNF thread. The assembly includes the clamp and seal specified for this part. A separate dryer is not required according to the available product specifications.