Fleetguard AF4789 cross reference
Baldwin replacement for AF4789
Baldwin lists PA3944 as the replacement for AF4789.
Source: Baldwin Manufacturers' Cross-Reference, Form 560-24 (2024).
Part numbers Fleetguard AF4789 replaces
Fleetguard lists AF4789 as the replacement for these manufacturer part numbers:
| Manufacturer | Their part number |
|---|---|
| EUCLID FDH (EUC) | 1004320 |
| NELSON (NELSN) | 121351 |
| WIX (WIX) | 46899 |
| WIX (WIX) | 46901 |
| WIX (WIX) | 546899 |
| WIX (WIX) | 546901 |
| PACCAR (PACAR) | 625081 |
| PACIFIC CAR & (PCF) | 6250-B1 |
| NAPA (NAPA) | 6899 |
| NAPA (NAPA) | 6901 |
| PACCAR (PACAR) | 842408 |
| NELSON (NELSN) | 84261B |
| NELSON (NELSN) | 84261N |
| WIX (WIX) | 89000095632 |
| CARQUEST (CARQ) | FF5052 88899 (Fleetguard now lists FS1251 for this part) |
| CARQUEST (CARQ) | FF5052 88901 (Fleetguard now lists FS1251 for this part) |
| WIX (WIX) | 89-95632/546901 |
| BIG A (BIGA) | 94901 |
| AIR REFINER (A-R) | ARM-12-1351 |
| GUARDIAN (GRDIN) | G12-1351 |
| HEAVY DUTY AIR (HDA) | HDA-1351 |
| CHAMP (CHAMP) | LAF-1351 |
| LUBERFINER (LBRF) | LAF-1351 |
| DONALDSON (DON) | P12-1351 |
| BALDWIN (BALD) | PA3944 |
| FRAM (FRAM) | PA-5025 |
| KOMATSU (KMTS) | PB7001 |
Source: Fleetguard Cross Reference by Part Number, doc LT19457D (2012). Fleetguard's published direction is manufacturer part → Fleetguard replacement.
Currentness: these crosses come from Fleetguard's 2012 list and have not been revalidated as current. Baldwin's 2024 list gives the same replacement for AF4789 and 8 of the 27 part numbers above. That shows a shared Baldwin replacement only. It does not verify that those numbers interchange with AF4789 today.
Upgrade chains run one way: equipment spec'd with a newer filter number should not step back to the older one. Go by what the truck was spec'd with.
Always verify against the current OEM catalog before ordering. Cross references are a starting point, not a guarantee of fit.
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