Do the existing schrader valves need to be removed or will the valve in these fittings push down to open the old valves simultaneously?

The schrader valves needn't to be removed, and the valve in these fittings push down to open the old valves simultaneously.

The high side fitting is too big for my old port?

Same here. The 2 fittings are the same size and both fit the low pressure port. This kit does not work.

Can anyone tell me if the low side port fits a .375 inch threaded r12 port?

The high side fits perfectly but the low side is too big! Why is this not fitting? What is the resolution?

Does the valve push down the existing valve in the port when it’s screwed on? Or when r134a goes in?

R12 to R134A retro fit fittings connect to the thread for use with the valve, there is a removable schrader valves., fitted with a plastic protective cover cap

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Aupoko R12 to R134A AC Retrofit Fitting Adapter Kit for AC Refrigerant

Product ID: 153532540

Details

Brand
Aupoko
Color
Blue Red
Connector Type
Cap
Item Weight
60 g
Manufacturer
Aupoko
Material
Metal Plastic

🔧Universal 1/4" SAE & 7/16"-20 UNF threads

⏱️Tool-free, quick install with Schrader valves

⚙️Durable metal & heat-resistant plastic build

64.97 DT

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Description

❄️ Upgrade Your Ride’s AC Game with Effortless Precision!

BUILT TO LAST - Premium metal and reinforced plastic ensure durability and stable performance under pressure.
PRECISION FIT - Standardized high/low side dimensions guarantee secure, leak-proof connections every time.
NO TOOLS NO HASSLE - Quick, tool-free installation with built-in removable Schrader valves and protective caps.
SEAMLESS COMPATIBILITY - Effortlessly retrofit R12/R22 ports to R134a standard fittings for broad AC system coverage.
ALL IN ONE RETROFIT KIT - Complete set with high/low couplers and protective caps—ready to upgrade your AC system instantly.

The Aupoko R12 to R134A AC Retrofit Fitting Adapter Kit is a professional-grade solution designed to convert legacy R12/R22 automotive AC charging ports to modern R134a standards. Featuring universal 1/4" SAE and 7/16"-20 UNF threaded compatibility, durable metal and heat-resistant plastic construction, and a tool-free installation process with built-in Schrader valves, this 4-piece kit ensures a secure, leak-proof retrofit for enhanced AC system performance and longevity.

Specifications

ASIN	B07SZKY6R1
Best Sellers Rank	#37,685 in Automotive ( See Top 100 in Automotive ) #147 in Air Conditioning Line Repair Tools
Brand Name	Aupoko
Color	Blue, Red
Connector Type	Cap
Customer Reviews	4.0 4.0 out of 5 stars (806)
Item Highlight	R12 R22 to R134A High/Low Fitting Port Retrofit 1/4" to 7/16"-20 UNF Conversion Adapter, for AC Air Conditioner Refrigerant
Item Weight	60 g
Manufacturer	Aupoko
Manufacturer Part Number	R12 to R134a Fitting Retrofit
Material Type	Metal, Plastic
Model Number	Retrofit High/Low Fitting
Number of Pieces	4
Set Name	R12 to R134A Conversion Adapter Set (4 Pcs)
Size	R12 to R134A Conversion Adapter (2 Pcs)
Thread Size	7/16 to 20UNF
Thread Type	UNF
UPC	606034661257
Unit Count	1 Count

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TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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64.97 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews