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Four Seasons 38604 TXV Externally Equalized A/C Expansion Valve

(Mercedes-Benz 450SL 1973-80, 380SL 1981-85, 280SE 1977-80, 300SD 1978-80, 450SLC 1973-80, 450SEL 1973-80, 300TD 1979-81, 280 1975-76 + 13 more models)

Part of: Four Seasons TXV Externally Equalized A/C Expansion Valve

Other options in this family: Four Seasons 38762 Four Seasons 39216 Four Seasons 39132 Four Seasons 38805 Four Seasons 39273

Manufacturer

Picture for manufacturer Four Seasons

Part Number

38604
6 reviews
Sale Price

$20.97

2 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Four Seasons 38604 is a thermostatic expansion valve (TXV) designed for automotive air conditioning systems. This externally equalized expansion valve features brass construction with double-soldered joints to ensure long-lasting integrity and reliable operation. Engineered to meet or exceed OEM specifications, this valve regulates refrigerant flow to maintain optimal cabin comfort.

Key Features:

  • TXV externally equalized design for precise refrigerant control
  • Brass/copper construction with double-soldered connections for durability
  • Compatible with R134A refrigerant systems
  • Superheat rating of 9.9 for optimal performance
  • Includes O-rings, gaskets, and seals for complete installation
  • Calibrated specifically for optimum driver and passenger comfort
  • Engineered and tested to provide years of trouble-free operation

Four Seasons is the largest aftermarket mobile climate control parts supplier in the industry, backed by over 50 years of experience. Each expansion valve undergoes rigorous testing, validation, and inspection by a team of engineers with decades of automotive air conditioning expertise. The precision-calibrated valve ensures proper refrigerant metering for consistent cooling performance.

Cross-Reference Part Numbers: 11138604, 1158350072, 123032, 182130, 208130, 758604, 938604, A77356, AC3402C, CWK758604

Products specifications

Fits

Mercedes-Benz 450SL 1973-80, 380SL 1981-85, 280SE 1977-80, 300SD 1978-80, 450SLC 1973-80, 450SEL 1973-80, 300TD 1979-81, 280 1975-76, 280C 1975-76, 380SLC 1981, 280S 1975-76, 450SE 1973-76; BMW 528i 1979-81, 530i 1975-78, 320i 1977-83 + 6 more models

Capillary Tube Length

8"

Equal Tube Length

10-1/2"

Equalizer Fitting

7/16" x 20

Equalizer Fitting Note

Female Flare

Fitting Type

Flare

Inlet Fit Note

Flare

Inlet Thread

5/8 - 18

Outlet Fit Note

Flare

Outlet Thread

3/4 - 16

Superheat

9.9

Ton

2

Inlet Fit

#6

Outlet Fit

#8

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great experience

Processed and shipped fast. I was a little upset with them shipping my Eibach springs in the Eibach box, and not repackaging it. Everyone could see the box, and knew what was in it. But this will not stop me from ordering again.

Found what I needed at an unbeatable price, easy purchase! No issues

The correct product that I ordered, and easy to find through there web site.thanks

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