Need a factory A/C Expansion Valve - The 1947 - Present Chevrolet & GMC Truck Message Board Network

61hawk · 04-17-2021, 11:40 AM

I'm putting my factory A/C back together and have a new expansion valve (ACDelco 15-5428) which would work if it would fit into the factory air housing. The inlet and outlet on the original expansion valve are 5/8", the replacement has an outlet of 3/4" but came with a 5/8" adapter. If I use the adapter, the expansion valve will not fit into the housing because it sticks up too tall. I've got an e-mail into OldAire and LMC to see if they have expansion valves that don't require an adapter. Has anyone else run into this and what did you do? Thanks.

Thought I found a solution, NAPA TEM 207307... but it's identical but only $17 vs. $52.

Nevermind... both will work. I zip tied the tube that runs along side it so it wouldn't move keeping everything raised up. Took the zip tie off and everything tucks into place. So if you need a new expansion valve, save some money and buy the NAPA one.

Joemomma1 · 04-23-2021, 01:46 PM

Good info. Dealing with getting my stuff rebuilt now. Thanks.

**The Rocknrod** · 04-23-2021, 05:31 PM

Hmm, looks like the one on my Old Air system.

Joemomma1 · 05-08-2021, 11:44 PM

Thanks again for the tip. Fits great.

04-17-2021, 11:40 AM	#1
61hawk Registered User Join Date: Mar 2008 Location: Lexington, SC Posts: 324	Need a factory A/C Expansion Valve I'm putting my factory A/C back together and have a new expansion valve (ACDelco 15-5428) which would work if it would fit into the factory air housing. The inlet and outlet on the original expansion valve are 5/8", the replacement has an outlet of 3/4" but came with a 5/8" adapter. If I use the adapter, the expansion valve will not fit into the housing because it sticks up too tall. I've got an e-mail into OldAire and LMC to see if they have expansion valves that don't require an adapter. Has anyone else run into this and what did you do? Thanks. Thought I found a solution, NAPA TEM 207307... but it's identical but only $17 vs. $52. Nevermind... both will work. I zip tied the tube that runs along side it so it wouldn't move keeping everything raised up. Took the zip tie off and everything tucks into place. So if you need a new expansion valve, save some money and buy the NAPA one. Last edited by 61hawk; 04-17-2021 at 12:44 PM.

04-23-2021, 01:46 PM	#2
Joemomma1 Registered User Join Date: Mar 2009 Location: CA Posts: 814	Re: Need a factory A/C Expansion Valve Good info. Dealing with getting my stuff rebuilt now. Thanks.

04-23-2021, 05:31 PM	#3
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Need a factory A/C Expansion Valve Hmm, looks like the one on my Old Air system. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

05-08-2021, 11:44 PM	#4
Joemomma1 Registered User Join Date: Mar 2009 Location: CA Posts: 814	Re: Need a factory A/C Expansion Valve Thanks again for the tip. Fits great. Attached Images

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