Expansion Valves, Pressure Switches, and Controls

TXVs, orifice tubes, trinary/binary pressure switches, freeze switches, and thermostats. These small parts cause an outsized share of "no cold air" calls — a stuck TXV or a failed pressure switch mimics much bigger failures.
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  • Omega Expansion Valve Block 31-31430

    Omega Expansion Valve Block 31-31430

    Omega Expansion Valve Block 31-31430
    $24.99
  • Omega Expansion Valve Block 31-31435

    Omega Expansion Valve Block 31-31435

    Omega Expansion Valve Block 31-31435
    $25.99
  • Omega Expansion Valve Block 31-31337

    Omega Expansion Valve Block 31-31337

    Omega Expansion Valve Block 31-31337
    $30.99
  • Omega Expansion Valve 3/8 x 1/2MIO with 1/4in For EQ Line 12in 31-10700-AM

    Omega Expansion Valve 3/8 x 1/2MIO with 1/4in For EQ Line 12in 31-10700-AM

    Omega Expansion Valve 3/8 x 1/2MIO with 1/4in For EQ Line 12in 31-10700-AM
    $22.99
  • Omega Expansion Valve Block 31-31423

    Omega Expansion Valve Block 31-31423

    Omega Expansion Valve Block 31-31423
    $24.99
  • Omega Expansion Valve Block 31-31355

    Omega Expansion Valve Block 31-31355

    Omega Expansion Valve Block 31-31355
    $30.99
  • Omega Expansion Valve Block 31-31291

    Omega Expansion Valve Block 31-31291

    Omega Expansion Valve Block 31-31291
    $28.99
  • Omega Expansion Valve Block Kenworth 2007 T330 T660 T800 W900 31-31214

    Omega Expansion Valve Block Kenworth 2007 T330 T660 T800 W900 31-31214

    Omega Expansion Valve Block Kenworth 2007 T330 T660 T800 W900 31-31214
    $34.99
  • Omega Expansion Valve Block 31-31425

    Omega Expansion Valve Block 31-31425

    Omega Expansion Valve Block 31-31425
    $24.99
  • Omega Expansion Valve Block (rear) 31-31426

    Omega Expansion Valve Block (rear) 31-31426

    Omega Expansion Valve Block (rear) 31-31426
    $25.99
  • Omega Expansion Valve Gm Lumina Transport Apv 92-93 Aux 31-10716-AM

    Omega Expansion Valve Gm Lumina Transport Apv 92-93 Aux 31-10716-AM

    Omega Expansion Valve Gm Lumina Transport Apv 92-93 Aux 31-10716-AM
    $19.99
  • Omega Expansion Valve Block 31-31259

    Omega Expansion Valve Block 31-31259

    Omega Expansion Valve Block 31-31259
    $21.99
  • Omega Expansion Valve Cadillac Dts Buick Lucerne 06-10 31-31096

    Omega Expansion Valve Cadillac Dts Buick Lucerne 06-10 31-31096

    Omega Expansion Valve Cadillac Dts Buick Lucerne 06-10 31-31096
    $28.99
  • Omega Expansion Valve Block 31-31422

    Omega Expansion Valve Block 31-31422

    Omega Expansion Valve Block 31-31422
    $25.99
  • Omega Expansion Valve Block 31-31365

    Omega Expansion Valve Block 31-31365

    Omega Expansion Valve Block 31-31365
    $28.99
  • Omega Expansion Valve Block 31-31449

    Omega Expansion Valve Block 31-31449

    Omega Expansion Valve Block 31-31449
    $31.99
  • Omega Expansion Valve Block (rear) 31-31308

    Omega Expansion Valve Block (rear) 31-31308

    Omega Expansion Valve Block (rear) 31-31308
    $22.99
  • Omega Expansion Valve Block 31-31417

    Omega Expansion Valve Block 31-31417

    Omega Expansion Valve Block 31-31417
    $25.99
  • Omega Expansion Valve Block 31-31418

    Omega Expansion Valve Block 31-31418

    Omega Expansion Valve Block 31-31418
    $24.99
  • Omega Expansion Valve Ford E Series 94-02 Aux Yg-333 31-10718-AM

    Omega Expansion Valve Ford E Series 94-02 Aux Yg-333 31-10718-AM

    Omega Expansion Valve Ford E Series 94-02 Aux Yg-333 31-10718-AM
    $18.99
  • Omega Expansion Valve Block 31-31299

    Omega Expansion Valve Block 31-31299

    Omega Expansion Valve Block 31-31299
    $21.99
  • Omega Expansion Valve Block 31-31402

    Omega Expansion Valve Block 31-31402

    Omega Expansion Valve Block 31-31402
    $24.99
  • Omega Expansion Valve Ext Mirage Galant 89-92 MR168189 31-10004

    Omega Expansion Valve Ext Mirage Galant 89-92 MR168189 31-10004

    Omega Expansion Valve Ext Mirage Galant 89-92 MR168189 31-10004
    $19.99
  • Omega Expansion Valve Block 31-31403

    Omega Expansion Valve Block 31-31403

    Omega Expansion Valve Block 31-31403
    $24.99