obd lock
Skip itA small market ($98K/yr) — this niche doesn't clear our bar today.
Review moat
Incredible72.38avg incumbent reviews — the moat a new listing must climb
Avg price
Incredible$43.45avg listing price — sweet spot $15–$100
Price range
Incredible$18.21–$89.72cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Growth
Good+27.2%90-day search growth — must beat 0% to launch
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Conversion
Bad2.0%search→purchase rate — share of searches ending in a sale
Returns
Bad5.0%return rate — above 5% kills the launch gate
Market size
Bad$98K$98K/yr · 113K searches
Competition
Bad71%top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, obd lock is a $98K/yr Amazon United States market (113K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Feb–May. Verdict: Skip it — 46/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
obd lock market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $87K–$109K
- units × avg price
- Conversion rate
- 2.0%
- Avg BSR
- #419
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 4.0%
- Avg brand age
- 29 months
- Avg seller age
- 190 days
Competition & brand share
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.Brands
11 falling
Sellers
15
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
71%
Top 20: 100%
Open market
13%
- wmLzhen37%
- VTT22%
- bbfly14%
- BMKCT6%
- LIXOOMER4%
- MITOB4%
- Open — no brand owns it (5 brands, 13%)
Demand & seasonality
Weekly Amazon search volume, last 97 weeks — +27.2% search growth over the last 90 days.Peak months: Feb, May · busiest ÷ quietest = 2.4×
Top obd lock search terms
- obd port lock29K/yr
- obd2 lock21K/yr
- obd lock23K/yr
- obd2 port lock anti theft12K/yr
- obd2 port lock8K/yr
- obd lock anti theft protector8K/yr
- obd2 lock anti theft7K/yr
- obd port lock anti theft protector5K/yr
Top obd lock products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Red)
wmLzhen$46.044.4★116 rev
VTT OBD-Lock ODB Port Locking Tool (Non-GM Model) Version 2
VTT$87.984.4★175 rev
OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Black)
wmLzhen$45.954.4★116 rev
bbfly-K01 OBD2 Lock OBD Port Lock Anti-Theft Device Car Anti-Theft OBDII Locking Device
bbfly$50.483.7★293 rev
OBD Lock OBD2 Port Locking Tool Metal OBD Port Protector for Cars SUV Trucks OBD-II Anti Theft Protector Antitheft Accessories (RED)
BMKCT$36.384.2★47 rev
Newest
by launch date
Anti-Theft OBD2(ONLY) Lock Universal OBD 2 Port Blocker with Security Key Car Theft Prevention Device for OBDII(Fits Most Vehicles Aluminum Alloy & POM)
Xykzra$22.828 rev
LIXOOMER OBD Port Lock - Protect Your Car from Theft. for Non-GM Models Only (Not Compatible with GM Chevrolet Buick Cadillac). Version 2.0
LIXOOMER$48.7216 rev
Lesiyou OBD II Port Lock Aluminum Anti Theft OBD2 Lock Car Diagnostic Port Protector OBD2 Locking Device Compatible with Vehicles Manufactured in 1996 and Later (Red)
Lesiyou$29.5212 rev
OBD2 Port Immobilizer Tool for Car SUV Truck OBD2 Port Protector
TuLeYiLe$33.3415 rev
Lesiyou OBD2 Lock Anti TheftAluminum OBD 2 Port Lock Car Diagnostic Port Protector OBD Guard Compatible with Vehicles Manufactured in 1996 and Later (Red)
Lesiyou$18.2112 rev
Trending
90-day click momentumAnti-Theft OBD2(ONLY) Lock Universal OBD 2 Port Blocker with Security Key Car Theft Prevention Device for OBDII(Fits Most Vehicles Aluminum Alloy & POM)
Xykzra$22.824.7★
OBD2 Port Immobilizer Tool for Car SUV Truck OBD2 Port Protector
TuLeYiLe$33.344.3★
LIXOOMER OBD Port Lock - Protect Your Car from Theft. for Non-GM Models Only (Not Compatible with GM Chevrolet Buick Cadillac). Version 2.0
LIXOOMER$48.724.0★
Lesiyou OBD II Port Lock Aluminum Anti Theft OBD2 Lock Car Diagnostic Port Protector OBD2 Locking Device Compatible with Vehicles Manufactured in 1996 and Later (Red)
Lesiyou$29.523.9★
OBD Lock OBD2 Port Locking Tool Metal OBD Port Protector for Cars SUV Trucks OBD-II Anti Theft Protector Antitheft Accessories (RED)
BMKCT$36.384.2★
What buyers say about obd lock
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to install”
“Fits Perfectly”
“Build quality is great”
“Works as advertised”
“Easy to use”
“not expensive”
“This is very well built”
“Seems like it will do the job as designed”
“The material seems well made”
“Good protection”
What buyers complain about
“On the cheaper side”
“Fitment has too much wiggle room”
“Didn't fit on my car”
“A bit tricky to use”
“I CANNOT get installed”
“Doesn't work”
“Realized its so flimsy”
“For one, this item is simply cheap plastic and can be easily pried off the port. I tried this on my own vehicle”
“Garbage”
“When I saw that it was useless as I had used obd2 extensions on the back of the plug which rendered it useless”
Top return reasons
Common questions
- Is obd lock profitable to sell on Amazon United States?
- The niche generates $98K/yr across 16 tracked products. 2 of 8 products launched in the last 360 days are still selling. 90-day search growth is +27.2%. Flapen's verdict: Skip it (46/100).
- How competitive is the obd lock niche?
- 11 brands and 15 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in obd lock?
- Top complaints mined from reviews: Value For Money, Size-Overall, Compatibility-Overall. The return rate is 5.0% — above our launch gate.
- When does demand for obd lock peak?
- Demand peaks in Feb–May; the busiest month runs 2.4× the quietest.
- What does it cost to enter the obd lock niche?
- Listings span $18.21–$89.72; the average listing price is $43.45 (sweet spot $15–$100). The average incumbent carries 72 reviews — the moat a new listing must climb.