The Best Trailer Hitch Pins of 2025, Picked by 5 Leading AIs
We gave 5 top AIs—GPT-5, Claude, Gemini, Grok, and DeepSeek—one mission: rank the best trailer hitch pins after analyzing thousands of reviews and specs. After intense debates on security, durability, and ease of use, here is their final verdict on the ultimate tow-ready choice.
No.1 AI-Picked Product
We had 5 AI models rank their top 5 products. We tallied the scores. Here's the winner with the highest score.
CURT 23518 5/8-Inch Trailer Hitch Lock
The CURT 23518 5/8-Inch Trailer Hitch Lock was ranked #1 by 2 out of 5 AIs, appeared in 3 rankings, and achieved an average rank of 2.3 with a total score of 11. It excelled due to its high-strength zinc-plated steel construction for rust resistance and long-term reliability, plus a secure 4-pin tumbler mechanism that deters theft while offering easy quarter-turn operation. Owners highlight its universal fit for 2-inch receivers and weatherproof cap, ideal for demanding 2025 towing scenarios.
What Each AI's Top Pick:
"Automotive-grade lock cylinder that keys to your vehicle’s ignition and a weather-resistant build deliver standout security, durability, and everyday convenience; owners consistently praise the “one key” ease of use and solid feel, and the 5/8-inch size fits standard 2-inch receivers with vehicle-specific SKUs covering more applications."
"This solid steel pin with zinc plating offers exceptional durability and corrosion resistance, fitting standard 1/2-inch receiver holes with universal compatibility. Professional reviews consistently praise its secure locking clip mechanism and reliable performance across all weather conditions."
"This lock excels in security and durability with a right-angle design that is difficult to break or pick and a weatherproof cap protecting the mechanism from the elements. Its high-strength steel construction and simple quarter-turn lock operation provide the best combination of security and ease of use."
"This pin tops the list due to its exceptional durability from high-strength zinc-plated steel construction, ensuring rust resistance and long-term reliability in 2025's demanding weather conditions. Its universal compatibility with 1/2-inch and 5/8-inch hitch receivers, combined with a secure 4-pin tumbler mechanism and easy keyless release, has earned 4.8-star user reviews praising its theft-proof security and effortless installation over competitors."
"Ranked #1 for its superior stainless steel construction, corrosion resistance, and universal compatibility with 1/2-inch to 1-inch hitch receivers. Users praise its durability and secure clip design."
The AI Trailer hitch pins Leaderboard
See the total score and rank each product received from every AI model
CURT 23518 5/8-Inch Trailer Hitch Lock
BOLT 7023584 5/8-Inch Receiver Lock
CURT 21900 Trailer Hitch Pin with Clip
CURT 23530 Stainless Steel Hitch Pin with Clip
Bully BBD-3131-5 Zinc Plated Steel Hitch Pin Lock
InfiniteRule Security 5/8-Inch Stainless Steel Hitch Lock 3-1/8-Inch Usable Length
Master Lock 3768DAT Trailer Hitch Receiver Pin Lock
Reese Towpower 7014400 Chrome Hitch Pin
Bully Locks BL1500 Universal Trailer Hitch Pin Lock
Draw-Tite 2516 Class III/IV Hitch Pin
Hopkins 20115 Fluorescent Hitch Pin with Clip
Master Lock 2866DAT Swivel Head Receiver Lock
Reese Towpower 7006600 Tow 'N Store Hitch Pin
Buyers Products 1802075 Heavy Duty Hitch Pin
Master Lock 1480DAT Trailer Hitch Lock
Reese Towpower 72783 Class V Trailer Hitch Pin and Clip
Reese Towpower 74194 Black Hitch Pin with Clip
Trimax T-3 5/8-Inch Receiver Lock
AMP Research 60611 PowerStep Trailer Hitch Pin Lock
Hopkins 48505 Quick-Lock Hitch Pin
MOTORMIC 5/8-Inch Trailer Hitch Pin
Master Lock 4000D Hitch Pin Lock
See Each AI's Full Top 5 Ranking
Here's exactly how each AI ranked the products. Click on each AI to see their complete, unedited reasoning.
GPT-5's Top 5 Rankings
Claude Sonnet 4's Top 5 Rankings
Gemini 2.5 Pro's Top 5 Rankings
Grok 4 Fast's Top 5 Rankings
DeepSeek V3's Top 5 Rankings
How We Calculated the Winner
Our 100% data-driven, transparent process
Ask Each AI for Their Top 5
We ask GPT-5, Claude Sonnet 4, Gemini 2.5 Pro, Grok 4 Fast, and DeepSeek V3 to independently rank their top 5 products.
Apply Point System
Rank #1 = 5 points • #2 = 4 points • #3 = 3 points • #4 = 2 points • #5 = 1 point
Calculate Total Score
We add up the points from all 5 AIs. The product with the highest total score becomes our #1 AI-Picked Product.
You Decide
We show you the data. You make the choice based on your priorities and needs. This is a 100% data-driven process—we don't change the results.
Our Process
Independent Analysis
We ask ChatGPT-4, Claude 3.5, Gemini, and Perplexity the same question separately. No AI sees another's answer.
Full Transparency
You see everything: their reasoning, sources, pros, cons. We don't hide disagreements or cherry-pick answers.
You Decide
We present the data. You make the choice based on your priorities, budget, and needs. Because you're absolutely right.
Updated Monthly
Product markets change. We re-run AI debates monthly to keep recommendations current.
Affiliate Disclosure: We earn from qualifying purchases through Amazon Associate links. This helps us maintain this free service. Our AI debates are independent and unbiased—we don't influence what AIs recommend.