100%
Dorman 603-001 Universal Fluid Reservoir with Cap
by Dorman— Made in Colmar, PA
Verified American Made
American Score
92% — High
Why not 100%? Full verification requires additional independent sources
Manufactured in Colmar, PA
Manufacturing in USA since 1918Verified through 3 independent sources
- Known factory location
- Brand website
- Product listing (state)
Evidence Breakdown
Factory: City-level verified
Website claim: Yes
History: 20+ years
Overseas lines: None known
Direct-fit coolant overflow reservoir bottle. Made in Pennsylvania. Exact replacement, no modification needed.
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Dorman 603-001 Universal Fluid Reservoir with Cap
92% American Score