Description
Genuine Caterpillar OEM 1R-0750 Advanced Efficiency spin-on fuel filter — the secondary fuel filter Cat fits to most heavy-bore on-highway and industrial diesels including 3406E, C10, C11, C12, C13, C15, C16, and C18. 2-micron absolute cellulose media, 1″-14 UN thread (the heavier-port companion to the 7/8″ 1R-0751). Replaces Fleetguard FF5320, Baldwin BF7633, Donaldson P551313, and WIX 33528.
Specifications
| Manufacturer | Caterpillar (Genuine OEM) |
|---|---|
| Part Number | 1R-0750 |
| Part Type | Spin-On Secondary Fuel Filter |
| Engine Compatibility | Cat 3208, 3306, 3406, C10, C11, C12, C13, C15, C16, C18 |
| Micron Rating | 2 µm absolute (Advanced Efficiency) |
| Media | Cellulose |
| Thread | 1″-14 UN |
| Length | 7.15 in (181.5 mm) |
| Outer Diameter | 3.37 in (85.7 mm) |
Cross References
This filter replaces or is equivalent to the following part numbers:
- Caterpillar: 1R-0750
- Fleetguard: FF5320
- Donaldson: P551313
- Baldwin: BF7633
- WIX: 33528
- Hastings: FF1079
- Luber-finer: LFF3347
- NAPA: 3528
- Sakura: FC5507
Applications
This fuel filter fits the following engines:
- Cat 3208 8.0L (1975–1999)
- Cat 3306 / 3306B (mechanical, 1980–2000)
- Cat 3406 / 3406B / 3406C / 3406E (1973–1999)
- Cat C10 / C11 / C12 (1999–2007)
- Cat C13 / C13 ACERT (2003–2010)
- Cat C15 / C15 ACERT / C15 Twin Turbo (1999–2010)
- Cat C16 (1999–2003)
- Cat C18 industrial / marine (2008–present)
Representative vehicles using these engines:
- Peterbilt 379 / 389 / 357 / 359 (Cat-powered)
- Kenworth W900 / T800 / T600 (Cat-powered)
- Freightliner Classic XL / FLD / Coronado (Cat-powered)
- International / Sterling / Western Star with Cat C13/C15
Frequently paired with the Cat 175-2949 fuel/water separator as the primary stage on C13/C15 trucks.
Confirm your engine S/N range before ordering. Some Cat C7/C9 and 3116/3126 engines use the 7/8″-thread 1R-0751 instead.









