Description
Universal A/C expansion valve — 1/2″ × 3/8″, 20″ equalizer
A versatile, externally-equalized thermal expansion valve (TXV) that meters refrigerant into the evaporator for strong, steady cooling. With 1/2″ × 3/8″ connections, a capillary sensing tube, and a 20″ external equalizer, this universal-fit valve cross-references a wide range of OEM expansion valves across many makes.
Universal fit — confirm before ordering. Match your connection sizes (1/2″ × 3/8″), valve style (capillary, externally equalized), and the system’s tonnage/superheat range against your original valve. Not sure? Call 480-507-2229 and we’ll help you match it.
The valve that controls your cooling
The expansion valve is the metering device between the high-pressure liquid line and the evaporator. It drops the refrigerant’s pressure and controls exactly how much enters the evaporator — the key to efficient, consistent cold air.
A capillary sensing tube reads the temperature of the refrigerant leaving the evaporator, and the external equalizer references evaporator pressure — together they let the valve fine-tune flow so the evaporator stays fully fed without flooding. A worn or clogged TXV shows up as weak cooling, frosting, or air that can’t hold temperature.
Know exactly what you’re ordering
The details that decide whether this valve matches your system:
One valve, many applications
Universal fit
A single versatile valve that cross-references dozens of OEM expansion valves — fewer part numbers to stock and source.
Precise metering
Controls exactly how much refrigerant enters the evaporator for strong, steady cooling instead of weak or fluctuating air.
External equalizer
The 20″ equalizer line references evaporator pressure for accurate superheat control under changing load.
Capillary sensing
A responsive capillary sensing tube keeps the valve reacting quickly to temperature changes at the evaporator outlet.
Wide interchange
Cross-references UAC, ACDelco, Four Seasons, NAPA, Omega, Visteon and more — see the table below.
Restores cold air
Replacing a failed or clogged TXV is one of the most common fixes for an A/C system that won’t cool properly.
Interchange & cross-reference numbers
This universal valve replaces an extensive range of OEM and aftermarket expansion valves. Match your old valve against the numbers below.
| Brand | Part number(s) |
|---|---|
| UAC | EX 6059C |
| ACDelco | 15230 · 155227 · 155281 · 155362 · 155364 · 155385 · 155482 · 155495 · 155771 · 155797 |
| Four Seasons | 38610 · 38611 |
| NAPA | 207303 · 207365 · 207399 · TEM207303 · TEM207365 · TEM207399 |
| Omega | 3110908 · 3110908AM · 3110970 · 3110970AM |
| Compressor Works | 758610 · 758611 · 758844 |
| Frigette | 208116 · 208203 · 208224 |
| Visteon | 400020 · 400021 · 400038 |
| Mazda | 000067033670 · 000067B38B6B |
| Chrysler | 4796896 |
| Eaton | 826059 |
| Parker | 031134137 |
| Red Dot | 71R8100 |
| Global Parts Distributors | 3411806 |
| AFI | 4297 |
| Hodyon | 164165A |
| Panafrio | 021332 |
| Ready-Aire / Proliance | 4620 |
| Advance Auto Parts | T38611 |
| O’Reilly Auto Parts | 38611 |
Technical specs
Replace it right
A clean install keeps the new valve accurate and the system efficient.
Confirm the match
Check connection sizes, valve style, and superheat/tonnage against your original valve before you start.
Recover refrigerant
Safely recover the system charge before opening any lines.
Fit the valve
Install the valve with fresh O-rings; route and clamp the sensing bulb correctly and insulate it.
Evacuate & recharge
Replace the drier, pull a deep vacuum, then recharge to spec.
Expansion valve FAQ
What does an A/C expansion valve do?
Is this truly universal — will it fit my vehicle?
What is the external equalizer line for?
How do I know my expansion valve is bad?
Should I replace the receiver-drier too?
Shop universal expansion valves
Browse universal-fit expansion valves and set your quantities in one place.
| Image | Product Name | SKU | Price | In Stock | Quantity | Add To Cart |
|---|---|---|---|---|---|---|
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Expansion Valve Universal Fit Oring 3/8 X 1/2 12" Capillary | 208-187 | $22.67 | In stock | ||
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Universal Fit Expansion Block Valve For Trucks, Motor Homes 3/8 X 5/8 x 1/2 x 1/2 Tons 2 | 208-135 | $34.00 | In stock | ||
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Universal Fit Expansion Block Valve For Trucks, Motor Homes & Jeep 1/2 X 5/8 3/8 X 1/2 Tons 2 | 208-212 | $34.87 | In stock | ||
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Expansion Valve Externally Equalized 3/8 X 1/2 MIO 12" Capillary | 208-143 | $49.07 | In stock | ||
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POA Update Kit for GM & Ford Applications w/ 134A, to Convert to Cycling Switch System | 208-8024 | $128.18 | In stock | ||
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Universal Fit Expansion Block Valve for Trucks, Motor Homes & Chrysler 5/8 X 5/8 3/8 X 1/2 Tons 1.5 | 208-231 | $32.40 | In stock | ||
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Universal Fit Expansion Block Valve For Trucks, Motor Homes 5/8 x 3/8 x 5/8 x 1/2 | 208-432 | $39.63 | In stock | ||
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HD Expansion Valve 3/8 x 1/2in Cap Length: 15" Equalizer Length: 12" Equalizer Fitting: 1/4" FF | 208-7004 | $41.90 | In stock |
Match your expansion valve before you buy
Connection size, valve style, and superheat all have to match. Send us your old valve’s numbers or call and we’ll confirm the right fit.
Add to cart ↑ Confirm my fitmentAll manufacturer names and part numbers are trademarks of their respective owners and are listed for identification and cross-reference purposes only; their use does not imply affiliation or endorsement. This is an aftermarket universal-fit expansion valve. Confirm connection sizes, valve style, and system suitability against your application before ordering.
