eBay Auto Parts case study$84K months in the hardest niche on eBay
Auto parts is a fitment nightmare most agencies refuse to touch. We built the compatibility tables, the returns workflow and the supplier depth — then scaled it. Results vary.
$84K
Monthly revenue
19%
Profit margin
2,400+
Active listings
2.1%
Return rate
01 — The challenge
Auto parts has the highest demand on eBay and the highest operational bar: fitment compatibility, brutal return rates when parts don't match, and buyers who message at midnight. Most stores fail here on ops, not demand.
02 — Our strategy
Treat fitment as the product. Every listing ships with complete compatibility tables (eBay Parts Compatibility), every SKU is cross-checked against distributor catalogues, and a dedicated parts team handles pre-sale fitment questions before they become returns.
03 — Execution
- 2,400+ listings with full eBay Parts Compatibility tables
- Pre-sale fitment desk — wrong-part returns cut to 2.1%
- 8 US parts distributors integrated with live stock feeds
- Promoted Listings Advanced on high-ticket SKUs with proven ROAS
Revenue ramp
Month by month ($K)
Store dashboard figures · results vary
From the dashboard
Real numbers, real shop
Store identities are protected under NDA — names and logos are covered.

“Auto parts is a fitment nightmare and I wanted no part of it. Their team handles compatibility tables, returns, the lot.”
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