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obd lock

Skip it42/100

a small market ($98K/yr) — obd lock doesn't clear our bar today.

Market/yr

$98K

Growth (1y)

+181.7%

Products

16

Brands

11

was 12 a year ago

Sellers

15

Price range

$18.21–$89.72

Returns

5.0%

Rating

4.3★

42/100

Skip it

Scored 42/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
5
×0.30
Growth
75
×0.30
Competition
29
×0.20
Quality gap
60
×0.10
Returns
60
×0.10

Demand

Weekly Amazon search volume, last 97 weeks — +181.7% year over year.
6K3KSpike '25Black Friday '25Spike '26Sep '24Dec '24Apr '25Aug '25Nov '25Mar '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: Feb, May · busiest ÷ quietest = 2.4×

Competition

37%wmLzhen
  • wmLzhen37%
  • VTT22%
  • bbfly14%
  • BMKCT6%
  • LIXOOMER4%
  • MITOB4%
  • Other (5 brands)13%

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack. 11 brands and 15 sellers compete here.

Brands

11 falling

was 12 a year ago

Sellers

15

Top 5 brand share

83%

#ProductBrandPriceRatingReviewsClick shareTrend
1
OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Red)OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Red)
wmLzhen$46.044.4★11628%rising
2
VTT OBD-Lock ODB Port Locking Tool (Non-GM Model) Version 2VTT OBD-Lock ODB Port Locking Tool (Non-GM Model) Version 2
VTT$87.984.4★17518%falling
3
OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Black)OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Black)
wmLzhen$45.954.4★1169%rising
4
bbfly-K01 OBD2 Lock OBD Port Lock Anti-Theft Device Car Anti-Theft OBDII Locking Devicebbfly-K01 OBD2 Lock OBD Port Lock Anti-Theft Device Car Anti-Theft OBDII Locking Device
bbfly$50.483.7★2939%falling
5
OBD Lock OBD2 Port Locking Tool Metal OBD Port Protector for Cars SUV Trucks OBD-II Anti Theft Protector Antitheft Accessories (RED)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★476%rising
6
OBD Lock bbfly-K02 ODB Port Locking Tool Car OBD2 Protector Device (K02)OBD Lock bbfly-K02 ODB Port Locking Tool Car OBD2 Protector Device (K02)
bbfly$60.044.3★885%falling
7
LIXOOMER OBD Port Lock - Protect Your Car from Theft. for Non-GM Models Only (Not Compatible with GM Chevrolet Buick Cadillac). Version 2.0LIXOOMER 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★164%rising
8
VTT OBD-Lock ODB Port Locking Tool (GM Models ONLY) Version 2VTT OBD-Lock ODB Port Locking Tool (GM Models ONLY) Version 2
VTT$89.724.4★1054%falling
9
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)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$22.824.7★84%rising
10
OBD2 Port Immobilizer Tool for Car SUV Truck OBD2 Port ProtectorOBD2 Port Immobilizer Tool for Car SUV Truck OBD2 Port Protector
TuLeYiLe$33.344.3★153%rising
11
MITOB Metal OBD2 Port Lock OBDii Connector Anti-Theft OBDii Port Lock M03MITOB Metal OBD2 Port Lock OBDii Connector Anti-Theft OBDii Port Lock M03
MITOB$37.685.0★12%rising
12
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 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★122%rising
13
JUTA OBD2 Lock PRO Aluminum Alloy Material OBDII Socket Locking Device Vehicle OBD Port ProtectionJUTA OBD2 Lock PRO Aluminum Alloy Material OBDII Socket Locking Device Vehicle OBD Port Protection
JUTA$24.054.1★492%falling
14
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 OBD2 Lock Anti TheftAluminum OBD 2 Port Lock Car Diagnostic Port Protector OBD Guard Compatible with Vehicles Manufactured in 1996 and Later (Red)
Lesiyou$18.215.0★122%rising
15
MITOB Metal OBD2 Port Lock OBDii Connector Anti-Theft OBDii Port Lock with 2 KeysMITOB Metal OBD2 Port Lock OBDii Connector Anti-Theft OBDii Port Lock with 2 Keys
MITOB$38.113.7★152%falling

Product shelf

All 16 tracked products in this niche.

OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Red)

OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Red)

wmLzhen

$46.044.4★116 reviews

VTT OBD-Lock ODB Port Locking Tool (Non-GM Model) Version 2

VTT OBD-Lock ODB Port Locking Tool (Non-GM Model) Version 2

VTT

$87.984.4★175 reviews

OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Black)

OBD2 Port Anti-Theft Lockout Tool OBD Port Protector for Cars/SUV/Trucksobd2 Lock Anti Theft Protector (Black)

wmLzhen

$45.954.4★116 reviews

bbfly-K01 OBD2 Lock OBD Port Lock Anti-Theft Device Car Anti-Theft OBDII Locking Device

bbfly-K01 OBD2 Lock OBD Port Lock Anti-Theft Device Car Anti-Theft OBDII Locking Device

bbfly

$50.483.7★293 reviews

OBD Lock OBD2 Port Locking Tool Metal OBD Port Protector for Cars SUV Trucks OBD-II Anti Theft Protector Antitheft Accessories (RED)

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 reviews

OBD Lock bbfly-K02 ODB Port Locking Tool Car OBD2 Protector Device (K02)

OBD Lock bbfly-K02 ODB Port Locking Tool Car OBD2 Protector Device (K02)

bbfly

$60.044.3★88 reviews

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 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★16 reviews

VTT OBD-Lock ODB Port Locking Tool (GM Models ONLY) Version 2

VTT OBD-Lock ODB Port Locking Tool (GM Models ONLY) Version 2

VTT

$89.724.4★105 reviews

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Assembly/Installation18%

“Easy to install”

Size-Overall16%

“Fits Perfectly”

Quality-Overall11%

“Build quality is great”

Advertised Vs Actual Product7%

“Works as advertised”

Ease Of Use6%

“Easy to use”

Value For Money5%

“not expensive”

Strength5%

“This is very well built”

Design-Overall3%

“Seems like it will do the job as designed”

Material Quality3%

“The material seems well made”

Drop/Impact Protection3%

“Good protection”

What buyers complain about

Value For Money14%

“On the cheaper side”

Size-Overall11%

“Fitment has too much wiggle room”

Compatibility-Overall9%

“Didn't fit on my car”

Ease Of Use7%

“A bit tricky to use”

Assembly/Installation7%

“I CANNOT get installed”

Functionality-Overall6%

“Doesn't work”

Strength6%

“Realized its so flimsy”

Material Quality4%

“For one, this item is simply cheap plastic and can be easily pried off the port. I tried this on my own vehicle”

Quality-Overall3%

“Garbage”

Socket/Port/Plug2%

“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

  • Compatibility-Overall32%
  • Size-Overall29%
  • Functionality-Overall4%
  • Assembly/Installation4%
  • Value For Money4%
  • Advertised Vs Actual Product4%
  • Defective Material/Parts4%
  • Locking Mechanism3%
  • Mechanism Issues3%
  • Connectivity-Overall2%

Data scraped July 8, 2026 · Marketplace baseline: 4.4★ avg rating · $22.71 median price · 2.2% median returns across 13,969 tracked niches.