How We Source Fitment Data
Accurate wiper blade data matters — wrong sizes mean return trips to the store and streaky windshields. Here is how we ensure our data is right.
Our Sources
- 1 Manufacturer owner's manuals — the primary source for OEM-specified blade sizes and arm types. We reference the official manual for each year, make, and model.
- 2 Dealer parts databases — cross-referenced with dealer catalogs to verify part numbers, sizes, and connector types match across sources.
- 3 Verified community reports — owner-submitted corrections that we validate against at least one official source before publishing.
Accuracy Commitment
Every entry in our database is verified against at least one official source before it goes live. We follow a strict process:
- 1. Initial entry — sourced from the manufacturer owner's manual or dealer catalog.
- 2. Cross-verification — compared against a second independent source (different dealer, parts database, or verified owner report).
- 3. Publication — only after passing both checks does the data appear on the site.
- 4. Ongoing review — community reports trigger re-verification against official sources.
Corrections Log
When we find or receive a correction, we fix the data and log it here for full transparency.
| Date | Vehicle | What Changed | Source |
|---|---|---|---|
| 2025-03-15 | 2023 Toyota RAV4 | Updated driver wiper size from 26" to 26" and confirmed PTB arm type | Toyota owner's manual verification |
| 2025-02-28 | 2022 Honda Civic | Added rear wiper size (12") — previously listed as N/A | Honda parts catalog cross-reference |
| 2025-02-10 | 2021 Ford F-150 | Corrected arm type from PTB to J-Hook for base trim | Community report + dealer confirmation |
Report an Error
Found incorrect data? We want to know. Every report is reviewed and verified before corrections are made. Here is what helps us investigate fastest:
- - Your vehicle's exact year, make, model, and trim
- - What data you believe is incorrect (size, arm type, or both)
- - Where you found the correct information (owner's manual page, dealer, etc.)
Update Frequency
We refresh our database on a regular schedule to keep data current:
- New model years — added within 30 days of manufacturer data availability, typically in late summer for the following model year.
- Community corrections — reviewed and published within 7 business days of receipt.
- Full database audit — conducted quarterly to catch any discrepancies that may have been introduced.
- Mid-year refreshes — checked when manufacturers release mid-cycle updates that may affect wiper specifications.
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