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

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 12V high-intensity UV light

🧪Universal fluorescent dyes for oil & coolant

🛠️R134a & R12 compatible with essential accessories

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€ 157.37

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In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔍 Illuminate leaks like a pro — don’t let hidden problems slow you down!

COMPLETE PRO KIT - Comes with dye remover, safety glasses, and service labels—everything a technician needs on the go.
RUGGED PORTABILITY - Durable molded carry case keeps your tools organized and ready for any job, anywhere.
UNIVERSAL DYE SYSTEM - Includes oil and coolant fluorescent dyes for versatile diagnostics across multiple vehicle systems.
LEGACY MODERN COMPATIBILITY - Works seamlessly with R134a and R12 refrigerants, covering both new and older vehicles.
PINPOINT PRECISION LEAK DETECTION - 50-watt UV light reveals hidden leaks in seconds, even in the toughest spots.

The Mastercool 53351 Professional UV Leak Detection Kit features a powerful 50W 12V UV light and universal fluorescent dyes to quickly identify leaks in A/C, coolant, oil, ATF, and fuel systems. Compatible with both R134a and R12 refrigerants, this all-in-one kit includes essential accessories like dye remover, safety glasses, and service labels, all housed in a rugged carry case designed for professional technicians and mobile use.

Specifications

ASIN	B000IHJXHG
Best Sellers Rank	#74,670 in Automotive ( See Top 100 in Automotive ) #29 in Air Conditioning Leak Detection Tools
Brand	Mastercool
Customer Reviews	4.5 4.5 out of 5 stars (435)
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

Reviews

E**R

2.10.2014

C**B

8.10.2024

D**.

3.08.2025

T**G

16.01.2014

P**5

3.01.2026

T**S

16.11.2024

M**E

8.06.2017

M**R

8.09.2021

R**Y

23.04.2021

A**R

25.03.2018

D**N

5.04.2023

T**.

7.07.2021

C**9

6.09.2017

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