WIX 51666 cross reference
U.S. government catalog cross-reference
The U.S. Defense Logistics Agency catalogs these part numbers under one National Stock Number, NSN 2940-00-445-0100 (filter element, fluid), meaning the government buys them as the same item of supply:
| Brand | Part number | How the government lists it |
|---|---|---|
| WIX | 51666 | primary number |
| Baldwin | PT461 | also listed as |
Baldwin's 2024 catalog also lists this cross.
Source: DLA PUB LOG Master Cross-Reference Data, October 2026 edition. Page last updated October 24, 2026.
A shared NSN means the U.S. government buys these numbers as the same item of supply. Always verify fit for your truck before ordering.
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