R12 to R134a AC Conversion Adapter Kit – High & Low Side
R12 to R134a AC Conversion Adapter Kit – High & Low Side
R12 to R134a AC Fitting Conversion Adapter Kit
Upgrade your vehicle's air conditioning system with ease using this R12 to R134a AC Fitting Conversion Adapter Kit. Designed for DIY mechanics and professionals alike, this kit allows you to convert older R12 or R22 refrigerant charging ports to accept modern R134a quick-disconnect fittings — no special tools required. Made in Mainland China.
Why Choose This Conversion Kit?
- Safe & Durable Construction: Built from high-quality stainless steel and PP (polypropylene) with excellent heat resistance, ensuring long-lasting performance under demanding engine bay conditions.
- Easy Quick-Disconnect Design: The high/low-side retrofit adapters convert your existing 1/4" SAE or 7/16"-20UNF R12/R22 charging ports to accept R134a quick-disconnect hoses swiftly and securely.
- Removable American Valve (Spool): Features a removable valve spool for effortless connection and disconnection, making AC servicing faster and more convenient.
- Service Port Cover Included: Each adapter comes with a protective service port cap to keep the port clean and free from contaminants when not in use.
- Wide Compatibility: Fully compatible with vehicles originally equipped with R12 or R22 AC systems, allowing a complete retrofit to R134a refrigerant charging ports.
Product Specifications
| Model | Straight Adapter with Spool and Service Port Cover |
| Material | Stainless Steel & PP |
| Low Side | 1/4 (7/16" – 20) × 13 mm (Blue) |
| High Side | 1/4 (7/16" – 20) × 16 mm (Red) |
| Power | Non-powered |
| Item Weight | 65 g |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 1 × Blue low-side quick connector
- 1 × Red high-side quick connector
- 1 × 13 mm blue protective cap
- 1 × 16 mm red protective cap
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Learn more: FuelEconomy.gov on vehicle maintenance
Frequently Asked Questions
Q: What vehicles is this R12 to R134a conversion adapter kit compatible with?
A: This AC conversion adapter kit is compatible with any vehicle originally equipped with an R12 or R22 refrigerant system that uses a 1/4" SAE or 7/16"-20UNF charging port. It converts both the high-side and low-side ports to accept standard R134a quick-disconnect fittings, making it suitable for a wide range of older cars, trucks, and SUVs.
Q: Do I need any special tools to install this AC fitting adapter kit?
A: No special tools are required. The adapters thread directly onto your existing R12/R22 service ports. The removable spool (American valve) design allows for quick and straightforward installation and disconnection by hand or with basic hand tools.
Q: Are the service port caps included, and why are they important?
A: Yes, both a 13 mm blue cap (low side) and a 16 mm red cap (high side) are included in the kit. These protective caps shield the converted AC ports from dust, moisture, and debris when the system is not being serviced, helping to maintain a clean and reliable connection point.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.