Where to buy
 | eBay | CAT Caterpillar 326-1643 Spin On Fuel Filter / Water Separator OEM Nos Surplus | $25.00 | View → |
 | NAPA | NAPA Gold Fuel Filter - Industrial | $66.22 | View → |
| Amazon | Fuel Water Separator 326-1643 3261643 for Caterpillar C11 C13 C15 C18 C27 C32 C7 C9 3412C 3516B | see price | View → |
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Supersessions & cross-references
24| Relation | Part | Manufacturer | Description | Where to buy |
|---|---|---|---|---|
| Catalog cross-reference | BF1397-SP | BALDWIN | buy | |
| Catalog cross-reference | 3607 | NAPA | FridayParts $32.00 | |
| Catalog cross-reference | 4238524 | CATERPILLAR | KuduParts $28.00 FridayParts $29.99 | |
| Catalog cross-reference | 86607 | CARQUEST | buy | |
| Catalog cross-reference | 57886301 | buy | ||
| Catalog cross-reference | 625821001 | buy | ||
| Catalog cross-reference | 33607 | buy | ||
| Catalog cross-reference | 101833 | buy | ||
| Catalog cross-reference | 86787 | buy | ||
| Catalog cross-reference | FS20007 | FridayParts $71.47 | ||
| Catalog cross-reference | FF1249SP | buy | ||
| Catalog cross-reference | 5WXV9 | buy | ||
| Catalog cross-reference | P551110 | DONALDSON | KuduParts $22.00 | |
| Catalog cross-reference | SN55438 | Fuel filter | buy | |
| Catalog cross-reference | 2129580 | buy | ||
| Catalog cross-reference | 265838143 | buy | ||
| Aftermarket cross-reference | 1R0770 | eBay $38.77 NAPA $57.83 KuduParts $22.00 FridayParts $24.00 SinoCMP $65.00 | ||
| Aftermarket cross-reference | 3261644 | Amazon eBay $10.00 NAPA $57.83 KuduParts $22.00 FridayParts $24.00 | ||
| Aftermarket cross-reference | 506853 | KuduParts $22.00 | ||
| Aftermarket cross-reference | CA1R-0770 | KuduParts $22.00 | ||
| Aftermarket cross-reference | CA3261643 | KuduParts $22.00 | ||
| Aftermarket cross-reference | CA3261644 | KuduParts $22.00 | ||
| Aftermarket cross-reference | 1R-0771 | radial seal filter | KuduParts $100.00 FridayParts $105.00 | |
| Aftermarket cross-reference | 2pcs | FridayParts $7.59 SinoCMP $27.00 KuduParts $38.00 |
Catalog cross-references come from manufacturer filter catalogs (Donaldson, WiX, Baldwin) and include OEM numbers that share the same catalog filter. Supersessions and aftermarket rows come from marketplace and supplier listings and are leads, not confirmed interchanges. Verify the exact part for your serial number before ordering.