| SKU | TY001199 |
| MOQ | 1 |
| KG/Piece | 2.36 KG |
| Returns | 30 days returns. Buyer pays for return shipping. If you use an Acctes shipping label, it will be deducted from your refund amount. See details |
| Tool Category | AC Leak Detection Tool Bearing Tool Set AC Charging Tool Kit |
| Application | Pipeline Sectional Test Bearing Installation & Removal For R1234yf System |
Our Automotive AC Leak Detection Test Plug Kit is a professional solution for accurate air conditioning system密封性 (sealing) testing, designed to help technicians quickly locate leaks in AC pipelines, compressors, condensers, and evaporators without full system disassembly.
Aligned with 2025 automotive repair regulations that mandate strict AC system sealing requirements, this kit combines durable plastic and high-strength aluminum caps to suit both low-pressure preliminary checks and high-pressure certification testing. The tapered cone design delivers reliable sealing without damaging original system O-rings, ensuring accurate pressure test results every time.
Ideal for professional automotive repair shops, HVAC technicians, and DIY mechanics, this tool saves time and effort by enabling sectional pipeline testing, so you can pinpoint leak locations quickly and reduce diagnostic time.
✓ Dual material design: Plastic caps for low-pressure preliminary testing, aluminum caps for high-pressure certification testing up to 400 PSI
✓ Precision tapered cone sealing creates an airtight fit without damaging original O-rings or pipeline threads
✓ Sectional testing capability lets you isolate individual AC system components to locate leaks quickly without full disassembly
✓ Available in multiple kit sizes to fit passenger cars, trucks, commercial vehicles, and even modern electric vehicles
✓ Aluminum caps are corrosion-resistant and reusable for over 500 testing cycles, delivering long-term value
✓ Compatible with all common refrigerants including R134a and the newer R1234yf environmentally friendly refrigerant
✓ Meets SAE J2788 industry standards for automotive AC system leak testing
✓ Standard NPT thread sizes (common 1/4" and 1/8") fit most OEM AC system service ports
✓ Compact, organized storage case keeps all test plugs organized and easy to transport to job sites
Passenger cars & sedans
SUVs & light trucks
Heavy-duty commercial trucks
Electric & hybrid vehicles
Construction equipment & excavators
AC compressor service ports
Condenser inlet & outlet connections
Evaporator core connections
Aluminum and rubber AC pipelines
Accumulators & expansion valves
Select appropriately sized test plugs that match the AC pipeline service port thread size (most common 1/4" and 1/8" NPT)
Install the tapered test plugs at the open ends of the AC system section you want to test, hand-tighten to create a secure seal
Connect a dry nitrogen pressure source to the test section and pressurize the system to the recommended test pressure (maximum 400 PSI for aluminum plugs)
Monitor pressure readings over the recommended test dwell time to check for pressure drop indicating a leak
If a leak is detected, use a leak detector or soapy water to pinpoint the exact location for repair
After testing is complete, release pressure, remove test plugs, and reassemble the AC system. Clean and store test plugs properly for future use.
Basic Plastic Set: For entry-level low-pressure troubleshooting
26-Piece Aluminum Set: For general passenger car AC service
59-Piece Truck Set: For heavy-duty commercial vehicle applications
78-Piece Mixed European/Asian Set: For multi-brand repair shops
81-Piece European/American Set: For regional vehicle specialization
103-Piece Full European/Asian/Japanese/German Set: For full-service repair shops
114-Piece Full Vehicle Universal Set: Includes new energy vehicle connectors
123-Piece Complete Full-Vehicle Kit: Covers all domestic and import vehicle models
💡 Pro Tip: After each use, clean the tapered sealing surface of your aluminum plugs and apply a light coat of refrigerant oil to prevent oxidation and extend service life. Always use dry nitrogen for pressure testing to avoid moisture contamination and ice blockage in the AC system.
Payment
We accept a variety of safe and convenient payment methods to meet your different transaction needs, including Alipay, Visa, MasterCard, Telegraph Transfer (T/T), Western Union, and other mainstream payment channels. We also support customized payment solutions according to your actual needs. If you have special payment requirements (such as other payment methods not listed), please feel free to consult our customer service window, and we will provide you with the most suitable payment plan.
Before completing the payment, please carefully check and confirm the accuracy of the payment amount, your account information, and the receiving address. Any errors in the above information may lead to payment failure, payment delay, or delivery errors. We will not be responsible for any losses caused by incorrect information provided by the buyer.
If you encounter any problems during the payment process (such as payment failure, payment stuck, etc.), please contact our customer service in a timely manner. We will respond to you within 24 hours and help you solve the problem to ensure the smooth progress of your payment.
Shipping
All orders will be processed and shipped within 3-5 business days after we receive your full payment (excluding weekends, public holidays, and force majeure events such as natural disasters and logistics outages). Before shipment, our professional quality inspection team will conduct a comprehensive inspection of the goods to ensure that the product quality meets the standard and there is no damage or missing parts.
We only ship goods to the confirmed order address. Please make sure that your order address is consistent with your actual shipping address. If you need to modify the shipping address, please contact our customer service in a timely manner before the order is shipped. Once the goods are dispatched, we will not be able to change the shipping address, and any losses caused thereby shall be borne by the buyer.
For international shipments, the delivery time is affected by factors such as customs clearance speed, local logistics efficiency, and regional policy restrictions. Therefore, we cannot guarantee the exact delivery time. We will provide you with a logistics tracking number immediately after the goods are shipped, so you can check the real-time logistics status at any time.
Any customs duties, import taxes, or other additional fees incurred during the international transportation of goods shall be borne by the buyer. We will provide all necessary documents (such as commercial invoices) required for customs clearance to assist you in completing the customs clearance process smoothly. If you need help with customs clearance-related issues, please contact our customer service.
During the transportation process, if the goods are damaged, lost, or have missing parts due to logistics reasons, please take photos and keep the relevant logistics documents in a timely manner, and contact our customer service immediately. We will verify the situation and provide you with solutions such as return, replacement, or refund according to the actual situation.
Please pay attention to the logistics tracking information. If you find any abnormalities (such as delayed delivery, wrong delivery address, etc.), please contact us in time, and we will coordinate with the logistics company to solve the problem as soon as possible.
Terms Of Sale
If you have any questions about the product, payment, shipping, or other related matters, please contact our customer service in a timely manner. We will respond to you within 24 hours and provide professional solutions to ensure that your problems are properly resolved.
If you do not receive the goods within the expected time, or if you are not satisfied with the received goods (such as product damage, inconsistent specifications, etc.), please do not open a dispute or leave neutral/negative feedback without communication. Contact us first, and we will actively coordinate and solve the problem for you to your satisfaction.
If you receive defective goods (a rare occurrence), please provide clear photos that can show the problem, and we will provide you with a full refund or free replacement according to the actual situation. No additional fees will be charged to you during the process.
Returned & Refund
Your satisfaction is our top priority. All goods are strictly inspected and tested before shipment to ensure that they meet the quality standards.
If you are not satisfied with the goods received, or if the product does not match the description, please contact us first to confirm the return address and logistics method before returning the goods. Do not return the goods without authorization, otherwise, we will not be able to process your return and refund normally.
All returned goods must be in their original condition (without damage, missing parts, or signs of use), and you need to provide the logistics tracking number and a detailed description of the return reason.
The shipping cost for returning the goods shall be borne by the buyer. If the return is caused by our own reasons (such as wrong product, quality problems), we will bear the return shipping cost and provide you with a full refund or free replacement.
If the goods are damaged, lost, or have missing parts due to the buyer’s improper use, storage, or transportation, the buyer shall be responsible for the corresponding losses, and we will not provide a full refund or replacement service.
Feedback
Customer satisfaction is the foundation of our development. Your feedback is very important to us. Whether it is praise, suggestions, or complaints, please feel free to contact us. We will carefully listen to your opinions and continuously optimize our products and services.
If you are satisfied with our products and services, we would appreciate it if you could leave positive feedback. If you have any dissatisfaction, please contact us before leaving neutral or negative feedback—we will do our best to solve the problem and give you a satisfactory reply.
