20 Best R134a Retrofit [2025]

Are you looking for the best r134a retrofit? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling r134a retrofit.

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1 InterDynamics Certified A/C Pro Car Air Conditioner Adapter Kit, Complete AC Conversion Adapter Kit... InterDynamics Certified A/C Pro Car Air Conditioner Adapter Kit, Complete AC Conversion Adapter...
2 R12 to R134 A High/Low AC Fitting Port Retrofit Conversion Adapter, Quick Coupler Valve A/C 90°... R12 to R134 A High/Low AC Fitting Port Retrofit Conversion Adapter, Quick Coupler Valve A/C 90°...
3 Aupoko R12 R22 to R134A Conversion Adapter Kit, R12 to R134A Retrofit Valve Fitting Kit for A/C Pro... Aupoko R12 R22 to R134A Conversion Adapter Kit, R12 to R134A Retrofit Valve Fitting Kit for A/C...
4 Wadoy R12 to R134A Conversion Kit, R12 to R134A Adapter, R12 to R134A Retrofit Kit, High/Low AC... Wadoy R12 to R134A Conversion Kit, R12 to R134A Adapter, R12 to R134A Retrofit Kit, High/Low AC...
5 R12 R22 R502 Screw to R134A Fast Quick Conversion Adapter Switch, Adapter Valve 1/4' to 8v1 Thread,... R12 R22 R502 Screw to R134A Fast Quick Conversion Adapter Switch, Adapter Valve 1/4" to 8v1...
6 Wadoy R12 to R134a Conversion Kit, R12 to R134a Adapter,R12 to R134a Retrofit Kit, 1/4' to 7/16'-20... Wadoy R12 to R134a Conversion Kit, R12 to R134a Adapter,R12 to R134a Retrofit Kit, 1/4" to...
7 R12 to R134A AC Retrofit Fitting Adapter Kit, R12 R22 to R134A High/Low Fitting Port Retrofit... R12 to R134A AC Retrofit Fitting Adapter Kit, R12 R22 to R134A High/Low Fitting Port Retrofit...
8 Aupoko A/C Retrofit Valve Kit, Retrofit Valve with Dust Cap Convert, BPV31 Bullet Piercing Tap Valve... Aupoko A/C Retrofit Valve Kit, Retrofit Valve with Dust Cap Convert, BPV31 Bullet Piercing Tap...
9 Mudder 4 Pieces VA-LH11 A/C Pro R-12 to R-134a Retrofit Parts Kit Retrofit Conversion Adapter... Mudder 4 Pieces VA-LH11 A/C Pro R-12 to R-134a Retrofit Parts Kit Retrofit Conversion Adapter...
10 Wadoy R12 to R134a Conversion Kit, R12 to R134a Retrofit Kit for A/C Pro Refrigerant, R12 to R134a... Wadoy R12 to R134a Conversion Kit, R12 to R134a Retrofit Kit for A/C Pro Refrigerant, R12 to...
11 R-12 to R-134a Retrofit Valve 7/16 Low Side Port Adapter with Blue Dust AC Cap Universal for Air... R-12 to R-134a Retrofit Valve 7/16 Low Side Port Adapter with Blue Dust AC Cap Universal for Air...
12 Wadoy R12 to R134a Retrofit Kit for A/C Pro Refrigerant, R12 to R134a Conversion Kit, R12 to R134a... Wadoy R12 to R134a Retrofit Kit for A/C Pro Refrigerant, R12 to R134a Conversion Kit, R12 to...
13 Wadoy R12 to R134a Retrofit Kit, Air Conditioner Conversion Adapter,High/Low AC Fitting Port Wadoy R12 to R134a Retrofit Kit, Air Conditioner Conversion Adapter,High/Low AC Fitting Port
14 Mudder Bpv31 Piercing Valve 134a Kit R134a Refrigerant Charge Hose with Gauge, Hose Refrigerant Can... Mudder Bpv31 Piercing Valve 134a Kit R134a Refrigerant Charge Hose with Gauge, Hose Refrigerant...
15 Micro Traders R-12 to R-134a High Low Side Retrofit Conversion Adapter 1/4 SEA Valves Caps Fitting... Micro Traders R-12 to R-134a High Low Side Retrofit Conversion Adapter 1/4 SEA Valves Caps...
16 Bullet Piercing Valve Kit with Dust Cap Converts R12 to R134A Fit 7/16 Inch Low Side Port BPV-31... Bullet Piercing Valve Kit with Dust Cap Converts R12 to R134A Fit 7/16 Inch Low Side Port BPV-31...
17 Aupoko A/C Retrofit Valve with Dust Cap, R12 R22 to R134A Fast Quick Conversion, 1/4' to 8v1 Thread,... Aupoko A/C Retrofit Valve with Dust Cap, R12 R22 to R134A Fast Quick Conversion, 1/4" to 8v1...
18 VOSAREA R12 to R134A Adapter Conversion Kit, R134A Retrofit Kit 1/4 Inch High Side Low Side AC... VOSAREA R12 to R134A Adapter Conversion Kit, R134A Retrofit Kit 1/4 Inch High Side Low Side AC...
19 FJC 2538 Air Conditioning Retrofit Kit FJC 2538 Air Conditioning Retrofit Kit
20 ERGAOBOY 4Pcs 90° R12 to R134A High/Low AC Fitting Port Retrofit Conversion Fits for Conditioner... ERGAOBOY 4Pcs 90° R12 to R134A High/Low AC Fitting Port Retrofit Conversion Fits for Conditioner...
Bestseller No. 1
InterDynamics Certified A/C Pro Car Air Conditioner Adapter Kit, Complete AC Conversion Adapter Kit...
  • Complete automotive air conditioning conversion adapter kit with 4 adapters
  • Includes one low-side 7/16 inch port, one high-side 3/8 inch port, one high-side for 2-Piece GM port, one high-side 7/16 inch port
  • Fits all cars all years
  • For conversion of R12 to R134a
  • Includes retrofit label
Bestseller No. 2
R12 to R134 A High/Low AC Fitting Port Retrofit Conversion Adapter, Quick Coupler Valve A/C 90°...
  • ♥ WIDE COMPATIBILITY - Charging port adapter R12 R22 Port to accept R134a Quick Disconnect. These Low/High side retrofits/adapters/fittings will...
  • ♥ PREMIUM QUALITY - With solid copper material, resistant to corrosion & good extensibility.
  • ♥ EASY INSTALLATION: The low AC fitting conversion adapter with time-saving and effort-saving while installing, lightweight, shortcut.
  • ♥ DIMENSION - Low Side, 1/4"SAE (7/16''- 20) x 13 mm, blue. High Side, 1/4" SAE (7/16’’- 20) x 16 mm, red.
  • ♥ WARRANTY - This can tap comes complete with a lifetime warranty. If the dispensing valve fails, simply contact us for a replacement or full...
Bestseller No. 3
Aupoko R12 R22 to R134A Conversion Adapter Kit, R12 to R134A Retrofit Valve Fitting Kit for A/C Pro...
  • WIDE COMPATIBLITY - Completely used to replace R12 with R134A charging port adapter, perfect air conditioning conversion adapter kit.
  • PREMIUM QUALITY - Made of stainless steel and plastic, solid construction for high heat resistance, durability and safety.
  • EASY INSTALLATION - Connected to the thread for use with the valve, there is a gas valve inside, fitted with a plastic protective cover, easy and fast...
  • NOTE - These Low/High side retrofits/adapters/fittings will convert your old 1/4" SAE R12 R22 charging port and make it accept the R134a quick...
  • 1 YEAR WARRANTY - Order R12 R22 Port to accept R134a quick disconnect from Aupoko, we offer 12 months warranty, true worry-free shopping experience....
Bestseller No. 4
Wadoy R12 to R134A Conversion Kit, R12 to R134A Adapter, R12 to R134A Retrofit Kit, High/Low AC...
  • R12 to R134A Conversion Kit: Quick coupler, charging port adapter. Our Low and High side fittings will convert your old 1/4" SAE or 7/16’’- 20UNF...
  • Easy to install, save time and effort, can be supported used with valve by screw connection. Lightweight and shortcut.
  • Made of high quality brass alloy material to last under extreme conditions and for high heat resistance durability and safety.
  • The high side is 1/4" SAE(7/16"-20)x16mm; The low side is 1/4"SAE(7/16"-20)x13mm
  • Can be matched used with a valve by connecting with screw thread There are gas valves inside, equipped with a plastic protective cap.
Bestseller No. 5
R12 R22 R502 Screw to R134A Fast Quick Conversion Adapter Switch, Adapter Valve 1/4" to 8v1 Thread,...
  • 【WIDE COMPATIBILITY】 Retrofit valve adapter for automotive air conditioning refrigerant systems converting from R12, R22, R502 to R-134A.
  • 【PREMIUM QUALITY】 The R12 R22 R502 to R134A fast quick conversion is made of high quality brass alloy material to last under extreme conditions...
  • 【EASY INSTALLATION】 Easy to be installed, save time and effort, can be supported used with valve by screw connection.
  • 【GOOD PERFORMANCE】 With 15-80 Centigrade temperature resistance, and high Working pressure, rustproof, long lifetime.
  • 【1 YEAR WARRANTY】 Order R12 R22 R502 to R134A retrofit valve from Aupoko, we offer 1 YEAR WARRANTY, true worry-free shopping experience. If this...
Bestseller No. 6
Wadoy R12 to R134a Conversion Kit, R12 to R134a Adapter,R12 to R134a Retrofit Kit, 1/4" to 7/16"-20...
  • 【Great Adapter】: R12 to R134a conversion adapter kit, quick coupler.Complete automotive air conditioning conversion adapter kit with 4 adapters
  • 【Thread】: Low Side, 1/4’’(7/16’’- 20) x 13 mm (Blue). High Side, 1/4’’(7/16’’- 20) x 16 mm (Red).
  • 【Easy To Install】: Save time and effort, can be supported used with valve by screw connection.for conversion of R12 to R134a.
  • 【Premium Quality】: Made of high quality aluminum alloy material to last under extreme conditions and for high heat resistance durability and...
SaleBestseller No. 7
R12 to R134A AC Retrofit Fitting Adapter Kit, R12 R22 to R134A High/Low Fitting Port Retrofit...
  • 【WIDE COMPATIBLITY】 - The AC fitting port adapter retrofit r12 to r134a is completely used to replace R12 R22 with R134A charging port 1/4" SAE or...
  • 【PREMIUM QUALITY】 - R12 to R134A retrofit fast conversion adapter kit are made of high quality metal and plastic, solid construction for high heat...
  • 【EASY INSTALLATION】 - R12 to R134A retro fit fittings connect to the thread for use with the valve, there is a removable schrader valves., fitted...
  • 【DIMENSION】 - These Low/High side retrofits/adapters/fittings will convert your old 1/4’’ SAE or 7/16"-20 UNF R12 R22 charging port and make...
  • 【1 YEAR WARRANTY】 - Order R12 R22 Port to R134a quick disconnect valve adapter from Aupoko, we offer 12 months warranty, true worry-free shopping...
Bestseller No. 8
Aupoko A/C Retrofit Valve Kit, Retrofit Valve with Dust Cap Convert, BPV31 Bullet Piercing Tap Valve...
  • ❄ WIDE COMPATIBILITY --- Universal retrofit valve with blue dust cap with 7/16’’ low side port, automotive air conditioning refrigerant systems...
  • ❄ PREMIUM QUALITY --- R12 R22 R502 screw to R134A fast quick conversion adapter is made of high quality brass alloy and plastic material, bullet...
  • ❄ EASY TO OPERATON --- Bullet piercing tap valve is easy to install, cleaning off the copper pipe with a wire brush or abrasive cloth, then attach...
  • ❄ Package Included --- R12 to R134A retrofit conversion adapter with dust cap, BPV31 bullet piercing tap valve, a hex key, 2 adapters.
  • ❄ 1 YEAR WARRANTY --- Order R12 to R134A retrofit conversion fitting kit from Aupoko, we offer 1 YEAR WARRANTY, true worry-free shopping experience....
Bestseller No. 9
Mudder 4 Pieces VA-LH11 A/C Pro R-12 to R-134a Retrofit Parts Kit Retrofit Conversion Adapter...
  • Package includes: you will receive 1 piece low-side 7/16 inch port, 1 piece high-side 3/8 inch port, 2 pieces adapters convert R12 to R134a for 2...
  • Application: these low/ high side retrofits converts 1/4 inch SAE R12 R22 charging port and make it accept the R134a quick disconnect hose, fits most...
  • Function: converts from R-12 to R-134a air conditioning system, this valve can be screwed on top of a closed AC system that just needs a little...
  • Easy to install: connected to the thread for use with the valve, 1 gas valve inside, fitted with a plastic protective cover
  • Durable material: both of the kit are made of corrosion-resistant metal that won' t wear out or rust over time, and anti-leaking design that will be...
Bestseller No. 10
Wadoy R12 to R134a Conversion Kit, R12 to R134a Retrofit Kit for A/C Pro Refrigerant, R12 to R134a...
  • Package include:One low side port and one high side port. Please confirm the size of the product before buying
  • Perfect air conditioning conversion adapter kit. Completely used to replace R12 with R134a
  • Easy to operate and install, made it easy to convert an r-12 system over to r134a. A good helper for your car
Bestseller No. 11
R-12 to R-134a Retrofit Valve 7/16 Low Side Port Adapter with Blue Dust AC Cap Universal for Air...
  • [PREMIUM QUALITY] This r12 to r134a conversion made of Aluminum alloy + rubber seal, 100% tested before shipping.
  • [FITMENT] Professional grade retrofit valve adaptor for automotive air conditioning systems converting from R-12, R-22 to R-134A Quick Disconnect...
  • [SIZE] R-12 to R-134a Retrofit Valve Low Side Connection: 1/4" SAE (7/16''- 20) x 13 mm.
  • [FUNCTION] Completed with a 13mm low side port, Valve core and Blue Dust Cap.
  • [PACKAGE INCLUDE] 1Pc x R12/R22 to R-134a Retrofit Low side adapter, 1Pc x AC Cap.
Bestseller No. 12
Wadoy R12 to R134a Retrofit Kit for A/C Pro Refrigerant, R12 to R134a Conversion Kit, R12 to R134a...
  • Package include:One low side port and one high side port. Please confirm the size of the product before buying
  • Perfect air conditioning conversion adapter kit. Completely used to replace R12 with R134a
  • Easy to operate and install, made it easy to convert an r-12 system over to r134a. A good helper for your car
  • Fits all vehicles 1976 – 1995
Bestseller No. 13
Wadoy R12 to R134a Retrofit Kit, Air Conditioner Conversion Adapter,High/Low AC Fitting Port
  • 【Great Adapter】: R12 to R134a conversion adapter kit, quick coupler.Complete automotive air conditioning conversion adapter kit with 4 adapters
  • 【Thread】: one low-side 7/16 inch port, one high-side 3/8 inch port, one high-side for 2-Piece GM port, one high-side 7/16 inch port.
  • 【Premium Quality】: Made of high quality aluminum alloy material to last under extreme conditions and for high heat resistance durability and...
  • 【Easy To Install】: Save time and effort, can be supported used with valve by screw connection.for conversion of R12 to R134a.
  • 【Compatible With】:Fits all vehicles 1976 – 1995
Bestseller No. 14
Mudder Bpv31 Piercing Valve 134a Kit R134a Refrigerant Charge Hose with Gauge, Hose Refrigerant Can...
  • Package content: 3 packs BPV-31 piercing tap valve kits (each kit contains 1 piercing valve, 1 hex key and 2 adapters), including R134a U-charge hose...
  • Easy to install: our BPV-31 piercing tap valve kits come in compact design that only requires a 2-inch clearance area for installation and use, and...
  • R134a Charging hose: 19 inch hose with R-134a can to R-12/R-22 service port connection, 1/2 inch end fits R12, 22, 502 fittings; And the gauge has...
  • Replace model of BPV-31 piercing tap valve: AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31; Compatible with 1/4 inch, 5/16 inch, 3/8 inch...
  • Universal retrofit valve: the retrofit valve converts from R-12 to R-134a air conditioning system and suit for 7/16 inch low side port; Suit for...
Bestseller No. 15
Micro Traders R-12 to R-134a High Low Side Retrofit Conversion Adapter 1/4 SEA Valves Caps Fitting...
  • [Application]: These Low/High side adapters will convert your old 1/4 SAE or 7/16” R12 charging port and make it accept the R134a quick disconnect...
  • [Material]: Made of high quality metal and plastic, solid construction can be used for a long time.
  • [Type]: This adapters connection size is 1/4SAE x 8mm conversion connector.
  • [Package List]: R12 to R134A A/C retrofit conversion adapter kit contains 1 Pc Low Side Quick Coupler, 1 Pc High Side Quick Coupler, 1 Pc 14mm Blue...
  • [Easy to Use]: Time-saving and labor-saving installation, lightweight,shortcut, as a good choice for car accessory replacement.
Bestseller No. 16
Bullet Piercing Valve Kit with Dust Cap Converts R12 to R134A Fit 7/16 Inch Low Side Port BPV-31...
  • Package includes: you will receive 1 pack BPV-31 kit (including 1 piercing valve, 1 hex key, 1 adapter) and 1 pack universal retrofit valve with a...
  • BPV-31: replace part No.: AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31; compatible with: compatible with 1/4 inch, 5/16 inch, 3/8 inch outside...
  • Universal retrofit valve: the retrofit valve converts from R-12 to R-134a air conditioning system and suit for 7/16 inch low side port; Suit for...
  • Easy to use: BPV-31: just screw it on then it's okay; BPV-31 piercing tap valve: you only need hex key wrench (included) to install this part; Its...
  • Durable material: both of the kit are made of corrosion-resistant metal that won't wear out or rust over time, and anti-leaking design that will be...
Bestseller No. 17
Aupoko A/C Retrofit Valve with Dust Cap, R12 R22 to R134A Fast Quick Conversion, 1/4" to 8v1 Thread,...
  • ✈ WIDE COMPATIBILITY --- R12 R22 R502 screw to R134A fast quick conversion adapter switch for automotive air conditioning refrigerant systems...
  • ✈ PREMIUM QUALITY --- The A/C retrofit valve with blue dust cap convert is made of high quality brass alloy and plastic material to last under...
  • ✈ EASY INSTALLATION --- Easy to be installed, save time and effort, can be supported used with valve by screw connection.
  • ✈ SIZE DETAIL--- Max. internal thread type is 1/4" SAE female thread. Min.internal thread Type: 8v1 Female Thread. Outer thread: Low pressure 13mm...
  • ✈ 1 YEAR WARRANTY --- Order R12 to R134A retrofit conversion fitting from Aupoko, we offer 1 YEAR WARRANTY, true worry-free shopping experience....
Bestseller No. 18
VOSAREA R12 to R134A Adapter Conversion Kit, R134A Retrofit Kit 1/4 Inch High Side Low Side AC...
  • - These low/ high side retrofits/ adapters/ fittings are designed to replace your old 3/ 16 or 1/ 4 R12 A/ charging port and make it accept the R134a...
  • - With removable gas valves and plastic A/ system cap. Effortless installation save you.
  • - Can be matched used with connecting with screw thread. Fit for you car A/ system.
  • - Iron ac adapter with copper plating finish to ensure long term durable use and enhance appearance.
Bestseller No. 19
FJC 2538 Air Conditioning Retrofit Kit
  • Includes 8 ounce Ester cool Oil
  • Retrofit Decal
  • High and Low Side R134a Service Port Adapters
  • High and Low Side R134a Service Port Caps
Bestseller No. 20
ERGAOBOY 4Pcs 90° R12 to R134A High/Low AC Fitting Port Retrofit Conversion Fits for Conditioner...
  • Size: 1/4" SAE (7/16"-20) x 16 mm,High Side (Red).1/4" SAE (7/16"-20) x 13 mm,low side (blue).
  • Excellent Quality: Solid brass construction for maximum strength and durability.
  • Great Airtightness: The adapter can ensure that the joint will not leak during use.
  • Wild applications: The adapter is suitable for the most air conditioners on the market.
  • Quick Installation: Easy to install and connect, can quickly applied to the AC system

Having trouble finding a great r134a retrofit?

This problem is well understood by us because we have gone through the entire r134a retrofit research process ourselves, which is why we have put together a comprehensive list of the best r134a retrofits available in the market today.

After hours of searching and using all the models on the market, we have found the best r134a retrofit for 2023. See our ranking below!

How Do You Buy The Best R134a Retrofit?

Do you get stressed out thinking about shopping for a great r134a retrofit? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching r134a retrofit, which is why we have assembled a comprehensive list of the greatest r134a retrofit available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for r134a retrofit that you consider buying. Your questions might include the following:

  • Is it worth buying an r134a retrofit?
  • What benefits are there with buying an r134a retrofit?
  • What factors deserve consideration when shopping for an effective r134a retrofit?
  • Why is it crucial to invest in any r134a retrofit, much less the best one?
  • Which r134a retrofit are good in the current market?
  • Where can you find information like this about r134a retrofit?

We’re convinced that you likely have far more questions than just these regarding r134a retrofit, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for r134a retrofit, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible r134a retrofit. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an r134a retrofit buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available r134a retrofit currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of r134a retrofit has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an r134a retrofit?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your r134a retrofit.
  5. Customer Ratings: Number ratings grade r134a retrofit objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their r134a retrofit.
  7. Product Quality: You don’t always get what you pay for with an r134a retrofit, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an r134a retrofit is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining r134a retrofit information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding r134a retrofit is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

Related Post:

FAQ:

Q: How to retrofit R12 to R134?

A: OEM R-12 to R-134a Retrofit Bulletins. … Basic “Generic” Retrofit Procedure that Works on Most Vehicles. … ADDITIONAL R-134A RETROFIT TIPS. … ALTERNATIVE REFRIGERANTS and DROP-IN REPLACEMENTS FOR R-12. … BOOTLEG R-12. … DO NOT MIX DIFFERENT TYPES OF REFRIGERANTS. … More Air Conditioning Articles: Offsite R-12 Retrofit Resources:

Q: How to replace R12 with R134A?

A: Discharge the R12 and recover the R12 for recycling. Flush evaporator and condenser with AC flush kit to remove mineral oil Flush AC high pressure and suction lines to remove mineral oil Empty oil from compressor Add specified Ester or PAG oil in the proper viscosity to the compressor,condenser and evaporator.

Q: Can I replace R12 with R134A?

A: The best replacement for R12 is considered to be R-134a. The chemical name of R134a is tetrafluoroethane and it chemical formula is CF 3CH 2F. It is a hydrofluorocarbon (HFC) and has zero ozone depletion causing potential and very low greenhouse effect.

Q: How to use are 134a recharge hose adapter?

A: R-134a Recharge Hose Adapter allows the safe use of older, piercing style, A/C recharge hoses with R-134a cans that are fitted with self-sealing valves. Simply screw on the adapter to the can and then screw the hose onto the adapter and you’re ready to start the regular recharge instructions found on your can of R-134a.