--- product_id: 3605817 title: "Mastercool 53351 Professional UV Leak Detection Kit – 12V High-Intensity Light – Detects A/C, Coolant, Fuel, Oil, ATF Leaks – Includes Universal Dyes, Glasses, R134a & R12 Compatible" brand: "mastercool" price: "€ 145.51" currency: EUR in_stock: true category: "Mastercool" url: https://www.desertcart.pt/products/3605817-mastercool-53351-professional-uv-leak-detection-kit-12v-high-intensity store_origin: PT region: Portugal --- # 50W high-intensity UV light Universal fluorescent dye for 10+ applications R134a & R12 system compatibility Mastercool 53351 Professional UV Leak Detection Kit – 12V High-Intensity Light – Detects A/C, Coolant, Fuel, Oil, ATF Leaks – Includes Universal Dyes, Glasses, R134a & R12 Compatible **Brand:** mastercool **Price:** € 145.51 **Availability:** ✅ In Stock ## Summary > 🔍 Illuminate leaks like a pro — don’t let hidden drips cost you! ## Quick Answers - **What is this?** Mastercool 53351 Professional UV Leak Detection Kit – 12V High-Intensity Light – Detects A/C, Coolant, Fuel, Oil, ATF Leaks – Includes Universal Dyes, Glasses, R134a & R12 Compatible by mastercool - **How much does it cost?** € 145.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/3605817-mastercool-53351-professional-uv-leak-detection-kit-12v-high-intensity) ## Best For - mastercool enthusiasts ## Why This Product - Trusted mastercool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Compatibility:** Works effortlessly with both modern R134a and legacy R12 refrigerant systems for all your service needs. - • **Safety & Efficiency Built-In:** UV-enhancing glasses and dye remover included to protect you and streamline your leak detection workflow. - • **Pinpoint Precision Leak Detection:** 50-watt UV light reveals hidden leaks in A/C, coolant, fuel, oil, and ATF systems with laser focus. - • **Universal Dye for Maximum Coverage:** Includes oil and coolant fluorescent dyes, ensuring versatile diagnostics across multiple vehicle systems. - • **Pro-Grade Portability & Organization:** Rugged molded carry case keeps your kit organized and ready for on-the-go diagnostics anywhere. ## Overview The Mastercool 53351 Professional UV Leak Detection Kit is a comprehensive, portable solution designed for automotive and HVAC technicians. Featuring a powerful 50W 12V UV light, universal fluorescent dyes for oil and coolant, and compatibility with both R134a and R12 refrigerants, this kit enables fast, accurate detection of leaks in multiple fluid systems. Packaged in a durable carry case with essential accessories like dye remover and safety glasses, it delivers professional-grade performance backed by U.S.-based support. ## Description Mastercool 53351 Professional UV Leak Detection Kit The Mastercool 53351 kit provides a complete UV leak detection solution for automotive and HVAC technicians. Designed to locate leaks in A/C, coolant, fuel, oil, and ATF systems with precision and ease. Kit Contents: - High-Intensity Mini UV Light (12V / 50W) - 1 oz Universal Fluorescent Dye Cartridge (10 Applications) - Refillable Oil/Dye Injector Hose Assembly - R134a Coupler and R12 Adapter - 1 oz Engine Coolant Dye - 4 oz Dye Remover - UV-Enhancing Safety Glasses - 25 Service Information Labels - Durable Molded Carrying Case Key Benefits: ✔️ Detects refrigerant, coolant, oil, fuel, and ATF leaks ✔️ Compact and powerful 50W-equivalent UV light for accurate leak detection ✔️ Refillable dye injector compatible with R134a and R12 systems ✔️ Includes universal oil dye and dedicated coolant dye ✔️ Packaged in a rugged case for easy transport and field use Important Use Notes: - Always wear safety glasses and gloves when injecting dye - Purge air from the injector hose prior to first use - Do not operate the UV light without proper eye protection - Avoid touching the UV light lens during use – surface becomes hot Built for professionals who demand accuracy, portability, and performance — backed by Mastercool’s U.S.-based support team. ## Features - ✔️ All-In-One Leak Detection Kit – Quickly identify refrigerant, coolant, oil, ATF, and fuel leaks across automotive and HVAC systems with a complete, ready-to-use kit. - ✔️ High-Intensity 12V UV Light – 50-watt inspection light delivers bright, focused UV illumination for pinpoint leak detection even in hard-to-see areas. - ✔️ Universal Dye Coverage – Includes 1 oz cartridge of fluorescent dye for oil-based systems (10 applications) and 1 oz engine coolant dye for cooling system diagnostics. - ✔️ Industry-Compatible Design – Comes with R134a hose and coupler, plus an R12 adapter for legacy system support. Works with most passenger vehicles and service equipment. - ✔️ Includes Essential Accessories – Features 4 oz dye remover, 25 service labels for recordkeeping, and UV-enhancing safety glasses for technician protection. - ✔️ Rugged Carry Case for Portability – Durable molded case keeps tools organized and ready for mobile technicians or shop use. - ✔️ Mastercool Reliability & Support – Built for professional-grade performance with U.S.-based customer service from our US headquarters. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000IHJXHG | | Best Sellers Rank | #95,604 in Automotive ( See Top 100 in Automotive ) #40 in Air Conditioning Leak Detection Tools | | Brand | Mastercool | | Customer Reviews | 4.5 4.5 out of 5 stars (438) | | Date First Available | March 1, 2008 | | Is Discontinued By Manufacturer | No | | Item Weight | 2.2 pounds | | Item model number | 53351-B | | Manufacturer | Mastercool | | Manufacturer Part Number | 53351-B | | Model | Professional UV Leak Detector Kit | | Product Dimensions | 9.75 x 6.75 x 3.25 inches | ## Images ![Mastercool 53351 Professional UV Leak Detection Kit – 12V High-Intensity Light – Detects A/C, Coolant, Fuel, Oil, ATF Leaks – Includes Universal Dyes, Glasses, R134a & R12 Compatible - Image 1](https://m.media-amazon.com/images/I/81jGvjvV13L.jpg) ## Questions & Answers **Q: How long should i keep the engine running for UV dye to show up? And do i have to rev it or just idle it?** A: Since I used the fluorescent dye to detect leaks from the power-steering system I had to drive my car around for approx 15 mins to actually see where it was leaking from. At idle I couldn't see any leaks. After the drive the leak was pretty obvious and the UV light picked it up right away. **Q: are glasses included?** A: Yes. They are an amber/yellow color **Q: does it come with dye for a/c** A: Yes it comes with a/c dye **Q: Can the kit be used to identify transmission leaks?** A: transmission leak should b readily identifiable by the red tint already in the fluid to b sure either water blast or at least hose off under hood all oils and then get on fairly clean surface to see if red oil shows up keep in mind u could have more than one leak and some people will put trans fluid in power steering complicating matters ## Frequently Bought Together - Mastercool 53351 Professional UV Leak Detection Kit – 12V High-Intensity Light – Detects A/C, Coolant, Fuel, Oil, ATF Leaks – Includes Universal Dyes, Glasses, R134a & R12 Compatible - Tracer Products TP34000601 UV Fluorescent Leak Detection Dye - Set of 6 - UV Fluid Leak Detection Dye, 8 Oz --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/3605817-mastercool-53351-professional-uv-leak-detection-kit-12v-high-intensity](https://www.desertcart.pt/products/3605817-mastercool-53351-professional-uv-leak-detection-kit-12v-high-intensity) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-23*