If you have ever tried to find a specific wiring harness for a 2015-era truck, you know the pain. Is it the “AD” revision? The “AB”? Does it support fog lights? The forums are full of conflicting info, and the dealer wants $800.
The Search Nightmare
I needed an engine harness for a 2015 Ram 1500 (3.6L V6). I searched eBay and got 5,000 results. Most were for the Hemi V8 (which looks similar but won’t plug in). I was drowning in part numbers.
How AI Solved It in 30 Seconds
Instead of guessing, I fed my VIN into an AI tool and asked it to cross-reference the Mopar database. Here is what it spit out:
- Exact Part: 68156788AB (or updated AC/AD versions)
- Compatible Donors: 2014-2016 Ram 1500 (MUST be 2WD)
- The “Gotcha”: The AI warned me to avoid 4WD harnesses because they have extra transfer case connectors that will throw error codes on my 2WD truck.
Armed with the exact part number, I went back to eBay. I filtered by “Used” and found the exact harness for $250.
The Lesson: Stop searching by name (“Ram wiring harness”). Use AI to find the Part Number first, then search for that. It turns a 3-hour hunt into a 5-minute purchase.
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