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?

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.

are glasses included?

Yes. They are an amber/yellow color

Can the kit be used to identify transmission leaks?

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

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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

Product ID: 3605817

🔦50W high-intensity UV light

🧪Universal fluorescent dye for 10+ uses

🛠️R134a & R12 system compatibility

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Description

🔍 Illuminate leaks before they become disasters!

PRO GRADE PORTABILITY - Rugged molded carry case keeps your kit organized and ready for on-the-go leak detection anywhere.
SEAMLESS COMPATIBILITY - Works effortlessly with both modern R134a and legacy R12 refrigerant systems—no technician left behind.
SAFETY MEETS EFFICIENCY - UV-enhancing glasses and dye remover included to protect you while delivering flawless results.
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 MULTI SYSTEM USE - Includes oil and coolant fluorescent dyes, covering 10+ applications for versatile diagnostics.

The Mastercool 53351 Professional UV Leak Detection Kit is a comprehensive, portable solution designed for automotive and HVAC professionals. Featuring a powerful 50W 12V UV light, universal fluorescent dyes for oil and coolant systems, and compatibility with both R134a and R12 refrigerants, this kit enables precise detection of leaks in multiple fluid systems. Packaged in a durable carry case with essential accessories like safety glasses and dye remover, it ensures efficient, safe, and reliable leak diagnostics backed by Mastercool’s trusted U.S.-based support.

Specifications

ASIN	B000IHJXHG
Best Sellers Rank	#308,669 in Automotive ( See Top 100 in Automotive ) #78 in Air Conditioning Leak Detection Tools
Brand	Mastercool
Customer Reviews	4.5 4.5 out of 5 stars (441)
Date First Available	March 1, 2008
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

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

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

2 weeks ago

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B/.323

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered 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 Panama.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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