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FJC 4923 UV Dye - 1 oz., Factory

4.6 4.6 out of 5 stars 283 ratings

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Color Factory
Brand FJC
Item Weight 1.47 ounces
Compatible Material Leather

About this item

  • Package Dimensions: 7.62 H x 1.016 L x 2.54 W (centimetres)
  • Can be detected using any UV or blue light
  • Package Weight: 0.091 kilograms
  • Country of Origin : United States
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Additional Details

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$9.49
Get it as soon as Monday, Apr 1
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Sold by OverStockDirect and ships from Amazon Fulfillment.
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$19.99
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Sold by Realhunlee Direct and ships from Amazon Fulfillment.
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$7.70
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FJC 4923 UV Dye - 1 oz., Factory
FJC 4923 UV Dye - 1 oz., Factory
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Price-44% $9.49
List:$16.95
$22.00-7% $14.02
List:$15.14
$30.88
Delivery
Get it as soon as Monday, Apr 1
Get it Apr 1 - 4
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Customer Ratings
Sold By
OverStockDirect
REKHAOIL®
Amazon.com
Amazon.com
form
Liquid
Oil
size
1 Ounce
1 oz bottle
1 Ounce
8 oz
number of items
1
1
1

From the manufacturer

We work hard every day to ensure FJC is a trustworthy and responsible brand.

We strive to develop and build quality products and use our knowledge and business relationships to inspire and implement solutions in the automotive air conditioning industry.

FJC offers refrigerant gases and accessories, refrigerant oils, fluorescent leak detection dyes, o-rings and gaskets, and an ever-expanding array of automotive service tools and accessories.

Product Description

Leak detection UV dye for use in motor oil, transmissions, fuel and power steering fluid.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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FJC 4923 UV Dye - 1 oz., Factory


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What's in the box

  • Manufactuered Brand Product
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    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    283 global ratings

    Customers say

    Customers like the performance and quality of the dye. They mention that it works well, glows bright under UV light, and is a great product. Opinions are mixed on leakage.

    AI-generated from the text of customer reviews

    22 customers mention22 positive0 negative

    Customers are satisfied with the performance of the dye. They mention that it works well, is bright under UV light, and is a great product.

    "Worked great and found my oil leak. Nearly $35 cheaper than a like item at a local auto parts store." Read more

    "Used this to find a power steering leak, works great." Read more

    "Works great" Read more

    "...Works very well. I am curious how long it takes to work its way out of the engine's system...." Read more

    12 customers mention12 positive0 negative

    Customers are satisfied with the quality of the dye. They mention that it glows bright green and helps them locate long elusive leaks. The dye is highly visible and works perfectly.

    "...The dye fluoresces very brightly under UV light. I used it to confirm the location of my oil leak before I took things apart...." Read more

    "Actually the dye under the U.V. light is much brighter than I expected. Works very well...." Read more

    "...It glowed bright green and helped me locate the long elusive (very large) leak on my Subaru, which was billowing great clouds of burnt motor oil..." Read more

    "Dye worked perfect...used it for power steering leak..found leak from at the power steering gearbox" Read more

    3 customers mention3 positive0 negative

    Customers find the dye easy to use and doesn't take much.

    "Doesn't take much...." Read more

    "Easy to use..." Read more

    "Ease to use..." Read more

    14 customers mention8 positive6 negative

    Customers are mixed about the leakage of the product. Some mention that it helped locate the oil leak, and is easy to see where leaking is coming from with a UV light. However, others say that the leak did not show up under black light.

    "...half the bottle and ran the engine for 15 minutes: while I saw no signs of leaks, I checked the oil on the dipstick and drove it...." Read more

    "Have a medium leak in 2002 Tacoma. Purchased a bottle of this and put entire bottle (1oz) in crankcase. Leak did not show up under black light...." Read more

    "Worked great and found my oil leak. Nearly $35 cheaper than a like item at a local auto parts store." Read more

    "My rotary compressor was leaking oil and could not locate it. Used the dye and found it right away." Read more

    Works Great
    5 Stars
    Works Great
    I don’t have anything to compare it to, but it worked great for me. I poured to entire bottle (1 oz) into my snowblower which holds 1.5 quarts and used the cheapest black light Amazon had available. Let it run for a minute or so and voila. You can easily see the cracked block. Guessing I didn’t need the whole bottle, but ……..
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    Top reviews from the United States

    Reviewed in the United States on August 3, 2023
    Customer image
    CS
    5.0 out of 5 stars Works Great
    Reviewed in the United States on August 3, 2023
    I don’t have anything to compare it to, but it worked great for me. I poured to entire bottle (1 oz) into my snowblower which holds 1.5 quarts and used the cheapest black light Amazon had available. Let it run for a minute or so and voila. You can easily see the cracked block. Guessing I didn’t need the whole bottle, but ……..
    Images in this review
    Customer image
    Customer image
    Reviewed in the United States on February 26, 2024
    Reviewed in the United States on March 12, 2024
    Reviewed in the United States on September 2, 2020
    3 people found this helpful
    Report
    Reviewed in the United States on July 11, 2023
    Reviewed in the United States on June 6, 2023
    Reviewed in the United States on January 13, 2024
    Reviewed in the United States on June 25, 2023

    Top reviews from other countries

    jaymemaurice
    5.0 out of 5 stars Worked well to find leak on leaky vehicle.
    Reviewed in Canada on May 20, 2021
    morgan easy
    5.0 out of 5 stars PLEASE READ THIS ON HOW TO USE
    Reviewed in Canada on October 4, 2020
    2 people found this helpful
    Report
    Adam Lorenz
    5.0 out of 5 stars I feel I added too much to my power-steering fluid and wasted a little
    Reviewed in Canada on June 27, 2016
    Customer image
    Adam Lorenz
    5.0 out of 5 stars I feel I added too much to my power-steering fluid and wasted a little
    Reviewed in Canada on June 27, 2016
    This fluorescent dye is really strong. I feel I added too much to my power-steering fluid and wasted a little. I found my leak easily with the aid of a 21 LED flashlight for $8 I bought on Amazon. I tried looking for these at Canadian tire but they do not have this in Canada. We must pay a mechanic to do it without this cool money saving stuff. boo
    Images in this review
    Customer image
    Customer image
    FreddEM
    5.0 out of 5 stars Great stuff!
    Reviewed in Canada on December 4, 2019