EA1020- Climatech A/C Expansion Valve

Genuine Climatech A/C expansion valve part number EA1020.

The EA1020 is a widely used externally equalized thermostatic expansion valve (TXV) in heavy-duty truck HVAC systems, especially on Caterpillar, Cummins, Freightliner, Peterbilt, Kenworth, and other OEMs. It’s designed for 1½-ton refrigeration capacity and is commonly used in cab-over-engine and conventional truck air conditioning units MPParts+1.

Key Specifications
Type: Externally equalized TXV

Refrigerant: R12 or R134a

Inlet: #6 male O-ring, hose side

Outlet: #8 male O-ring, evaporator side

Equalizer tube length: 13"

Tonnage rating: 1½ ton

O-ring nuts: ¼" female inlet, ¼" female outlet MPParts+1

Common Applications
Caterpillar 14, 16G, 225, 627, 955, 963, 977, 983B, 988B, D6–D11 series

Cummins, Freightliner, Peterbilt, Kenworth, Mack, John Deere, Volvo, Western Star

Various John Deere/Peterbilt/Volvo/Western Star models with internally equalized valves