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BDZMC 4 Pin Car Plug Tester, 4 Way Flat Trailer Circuit Tester with LED Indicators, Straight Car Light Wiring Testers, Trailer Tester Connector for Turn Signal Tail Lights Trouble Shooter
✅ In stock
F
Grade
Analysis Confidence
73%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 21, 2026 5:14 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 🏷️The retail sticker price has been slashed by 96% — a steep markdown from the official listing.
- 📉Better-priced windows have occurred before, though not frequently — today's price is reasonably competitive.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
4.83/20
Deal Strength
0/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
BDZMC-US
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓【4-Way Trailer Tester】:This 4-pin car plug tester is used to quickly track whether your trailer is wired correctly, to test whether the trailer's taillight, the right light, left light, turn signal, and brake light are working properly, and troubleshoot and ensure your driving safety.
✓【Plug & Play】:This 4-pin trailer plug tester plug and play. Just insert the 4-way trailer plug tester into the connector, then operate the trailer's taillight and turn signal, turn on the light observe the LED light, and show the green light when there is electricity, indicating that it is working normally.
✓【Sturdy Construction】:The 4-pin trailer connector is made of ABS plastic material, which is strong and sturdy, has corrosion resistance and impact resistance, and is not easy to rust, ensuring long-term use. With TAIL, LT, and RT lights, easy to read and see which lines have problems.
✓【Portable Design】:This trailer-led indicator tester is small enough that you can put it in your pocket, toolbox, glove box, or anywhere else. And also equipped with a hanging hole and can be hung on a key chain for easy carrying and storage.
✓【Wide Application】:This 4-way car circuit tester is suitable for most vehicles, such as trucks, trailers, boats, campervans, and other vehicles, and can be used to test the operation of various lights. DC: 6-24V.
⚙️ Specifications
Brand
BDZMC
Color
black
Min. Operating Voltage
6 volts_of_direct_current
Manufacturer
BDZMC
Item Weight
0.459 ounces
Package Dimensions
3.9 x 2.7 x 0.5 inches
Item model number
4-Pin Car Plug Circuit Tester
Manufacturer Part Number
BDZMC-BC-172
ASIN
B0FG7K3TWG
Customer Reviews
4.2 4.2 out of 5 stars (91) var dpAcrHasRegisteredArcLinkClickAction; P.when('A', 'ready').execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( 'acrLink-click-metrics', 'click', { "allowLinkDefault": true }, function (event) { if (window.ue) { ue.count("acrLinkClickCount", (ue.count("acrLinkClickCount") || 0) + 1); } } ); } }); P.when('A', 'cf').execute(function(A) { A.declarative('acrStarsLink-click-metrics', 'click', { "allowLinkDefault" : true }, function(event){ if(window.ue) { ue.count("acrStarsLinkWithPopoverClickCount", (ue.count("acrStarsLinkWithPopoverClickCount") || 0) + 1); } }); }); 4.2 out of 5 stars
Best Sellers Rank
#1,043,236 in Automotive (See Top 100 in Automotive) #767 in Trailer Connectors
