0 ratings
genuine image
4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for Brake/Turn/Tail Lights Trouble Shooter
4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for Brake/Turn/Tail Lights Trouble Shooter
4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for Brake/Turn/Tail Lights Trouble Shooter
4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for Brake/Turn/Tail Lights Trouble Shooter
4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for Brake/Turn/Tail Lights Trouble Shooter
4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for Brake/Turn/Tail Lights Trouble Shooter
4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for Brake/Turn/Tail Lights Trouble Shooter
Efficiently detect trailer wiring faults and ensure safe operation with our high-quality trailer tester connector!
4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for Brake/Turn/Tail Lights Trouble Shooter
Item #: 241499097

4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for

Item #: 241499097

INR 1118

Price Details

Price

INR 1118

M.R.P. INR 1118

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review

100+ bought

In stock
us Imported from USA store

QTY:

Order now and get it around Wednesday, August 26
Our Top Logistics Partners
  • fedex
  • dhl
Efficiently detect trailer wiring faults and ensure safe operation with our high-quality trailer tester connector!
Show More
Please enter vehicle details

U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified


paypal payment
discover payment
visa payment
diners club payment
mastercard payment
american express payment
rupay payment
Ships from Ubuy, Sold by: GAOLAOSY
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

Product Details

GAOLAOSY Shop 4 Pin Trailer Tester Connector, with LED Indicators (1PC) | 4-Way Straight Trailer Light Tester, Universal Car Wiring Testing Accessories for Brake/Turn/Tail Lights Trouble Shooter online at a best price in India. B0FG2FR9GT
  • 【High-Quality Materials】The trailer light tester is constructed with high-toughness ABS housing and premium copper contacts, combining impact resistance with excellent conductivity and weather resistance, and is robust, rust-proof, and corrosion-resistant, ensuring long-term stable operation.
  • 【Practical Function】The 4-pin trailer plug tester accurately detects the circuit status of the right turn signal, left turn signal, directional lights, and brake lights, quickly locating wiring faults to ensure the normal operation of the trailer lighting system, eliminates driving safety hazards from the source, serving as a practical tool for trailer circuit maintenance.
  • 【Compact Size】The 4-way trailer circuit tester measures 1.97×1.38×0.39 inches. Its compact design takes up small space and is easily storable in a glove box or tool bag. At the same time, the equipped hanging ring can be attached to a keychain or work belt for convenient access anytime, meeting mobile detection needs.
  • 【Easy to Use】The trailer wiring tester supports plug-and-play operation. Simply insert the connector into the corresponding port, and activate the vehicle's turn signals, headlights, and brake lights in sequence, green lights indicate circuit power. Additionally, the TAIL, LT (left turn), and RT (right turn) indicator lights are clearly marked, allowing quick fault diagnosis without professional skills to enhance detection efficiency.
  • 【Wide Application】The trailer connector tester is compatible with 6-24V DC voltage, suitable for various towed vehicles like trucks, boats, RVs, and campers. It meets the circuit detection needs of different owners in diverse scenarios, offering strong practicality and wide adaptability.
Minimum Operating Voltage6 volts_of_direct_current
Compatible DevicesTrucks, Boats, RVs, Campers with 4-pin trailer plug and 6-24V DC voltage
Style NameCompact
ColorBlack
Item Weight10 g
Item Dimensions1.97 x 1.38 x 0.39 inches (5 x 3.5 x 1 cm)
Brand NameGAOLAOSY
ModelTrailer Tester Connector
Unit Count1 Count
ManufacturerGAOLAOSY
Included ComponentsTrailer Tester Connector
Part NumberGAOLAOSY-GLA-139
BrandGAOLAOSY
StyleCompact
Item dimensions L x W x H1.97 x 1.38 x 0.39 inches (5 x 3.5 x 1 cm)

What's in the box

Trailer Tester Connector

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a 4 Pin Trailer Tester Connector used for?

    Answer: A 4 Pin Trailer Tester Connector is designed to diagnose electrical issues within your trailer's lighting system. It helps you test the functionality of crucial components, including brake lights, turn signals, and tail lights. By identifying problems before they escalate, you can ensure safe towing and compliance with road regulations. This tool is particularly useful for RV and trailer owners who frequently check their lighting systems to avoid any potential hazards on the road.
  • Question: How does the LED indicator work on the trailer light tester?

    Answer: The LED indicators on the trailer light tester provide a clear visual representation of the connection's functionality. Each LED corresponds to a specific circuit, including brake lights, left turn, right turn, and tail lights. When the system is working properly, the respective LEDs will illuminate, allowing you to quickly identify any faulty areas that may require attention. This makes troubleshooting efficient, which is especially beneficial in preparing for towing.
  • Question: Can I use the 4-Way Straight Trailer Light Tester with different types of trailers?

    Answer: Yes, the 4-Way Straight Trailer Light Tester is designed for universal compatibility, making it suitable for various trailer types including utility, boat, and RV trailers. As long as the trailer has a standard 4-pin connector, this tester will work effectively. This versatility makes it an essential accessory for fleet operators, DIY enthusiasts, or anyone who frequently connects and disconnects different trailers.
  • Question: Is the trailer light tester weatherproof?

    Answer: While the 4 Pin Trailer Tester Connector is designed for outdoor use, it is not fully weatherproof. It’s important to store it in a dry place when not in use to prolong its lifespan. If you regularly test in inclement weather, consider using additional protective measures like a weather-resistant bag. Maintaining your tester ensures accuracy and functionality, especially in rainy or snowy conditions.
  • Question: What should I do if the lights don’t work when using the tester?

    Answer: If the lights don’t illuminate while using the 4-Way Trailer Light Tester, first check the vehicle's electrical system to ensure it's functioning properly. Verify that the trailer is properly connected to the towing vehicle and that there are no loose wires. Additionally, inspect the bulbs and connectors on the trailer for any damages or corrosion. This systematic approach helps pinpoint the issue quickly and reduces the risk of driving with faulty lighting.
  • Question: Can this tool help in troubleshooting issues beyond the lights?

    Answer: Yes, the 4 Pin Trailer Tester can indirectly assist in troubleshooting other electrical issues by ensuring proper connectivity. If the tester indicates a problem, it could point to further issues within the trailer’s wiring harness or connection points. For instance, persistent failures might originate from a short circuit or faulty ground. In these cases, the tester becomes a diagnostic tool for electrical integrity, guiding you to more comprehensive repairs.
  • Question: Is professional installation required for this trailer light tester?

    Answer: No, professional installation is not required to use the 4 Pin Trailer Tester Connector. It’s designed for user-friendly operation, allowing anyone to use it effectively without specialized skills. Simply plug the tester into your trailer's connector, activate the vehicle's lights, and observe the LED indicators. This practicality makes it ideal for both professionals and DIY users who seek to conduct their own vehicle maintenance.
  • Question: How durable is the trailer light tester?

    Answer: The 4-Way Straight Trailer Light Tester is constructed to withstand regular use in varied environments. Its rugged design is suited for both casual users and frequent testers, making it a reliable piece of equipment in your towing toolkit. However, it's advisable to handle it carefully and avoid exposing it to extreme conditions. Proper maintenance will enhance its longevity and effectiveness.
  • Question: Are there any tips for using the trailer light tester effectively?

    Answer: To ensure effective use of the 4 Pin Trailer Tester Connector, start by confirming the trailer's wiring and connections are clean and secure. Test the system in an outdoor area with sufficient lighting during daylight hours for clear visibility of the LED indicators. Always check one function at a time to easily pinpoint any issues. Following these tips can maximize the tester's efficiency and help maintain your trailer's electrical system.
  • Question: Where can I buy the 4 Pin Trailer Tester Connector in India?

    Answer: You can purchase the 4 Pin Trailer Tester Connector from Ubuy, a reliable online marketplace. They offer a wide selection of automotive tools and accessories, making it convenient to find the trailer light tester you need. Ubuy provides detailed product descriptions and order tracking, ensuring a smooth purchasing experience suited for all your automotive needs.

GAOLAOSY Wiring Editorial Review

No editorial reviews found

Customer Reviews & Ratings

11 customers ratings
  • 5 Star
    87%
  • 4 Star
    0%
  • 3 Star
    13%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 1561 reviews
Read reviews
PC
Paritosh
Verified buyer

“Quality, fit, and variety are all good. Very good quality, perfect fit, with a good variety in 70s Bellbottom jeans. Keep them coming.”

20-Jul-26 · via Trustpilot
AV
Aggarwal
Verified buyer

“Everything was well maintained and smooth . We can trust UBUY .”

23 July 2026 · via Trustpilot
JM
Jeeju
Verified buyer

“Product is nice. Well packaged and delivered promptly”

23 July 2026 · via Trustpilot
NG
neeraj
Verified buyer

“Product was delivered before time. At each steps remider given time to time ,product is also good and fruitful”

3 July 2026 · via Trustpilot
SP
siva
Verified buyer

“I received the product properly packed and without any damage. If you can provide a video showing how to assemble the parts, it would be a great help. Thanks & Regards, Siva Prakash.”

16-Jul-26 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.