Description
Genuine Caterpillar OEM 1R-0751 Advanced Efficiency spin-on fuel filter — the secondary fuel filter Cat specifies for the 3114, 3116, 3126/B/E, C7, and C9 family of mid-bore diesels and the C6.6 industrial. 2-micron absolute filtration on cellulose media, 7/8″-14 UN thread, 7.15 in tall by 3.37 in OD. Replaces Fleetguard FF5324, Baldwin BF7632, Donaldson P551315, and WIX 33626.
Specifications
| Manufacturer | Caterpillar (Genuine OEM) |
|---|---|
| Part Number | 1R-0751 |
| Part Type | Spin-On Secondary Fuel Filter |
| Engine Compatibility | Cat 3114, 3116, 3126/B/E, C6.6, C7, C9 |
| Micron Rating | 2 µm absolute (Advanced Efficiency) |
| Media | Cellulose |
| Thread | 7/8″-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-0751, 1R0759
- Fleetguard: FF5324, FF5321
- Donaldson: P551315
- Baldwin: BF7632, BF7634
- WIX: 33626
- Hastings: FF1076
- Luber-finer: LFF4783
- NAPA: 3626
Applications
This fuel filter fits the following engines:
- Cat 3114 / 3116 / 3126 (mechanical, 1993–1998)
- Cat 3126B / 3126E (HEUI, 1998–2003)
- Cat C7 7.2L on-highway (2004–2009)
- Cat C9 / C-9 9.3L on-highway (2003–2009)
- Cat C6.6 industrial
- Cat 3046 industrial
Representative equipment using these engines:
- On-highway: Freightliner Business Class M2, Sterling, IC Bus, Blue Bird
- Wheel loaders: 910 / 924 / 928 / 938 / 950 / 962 (G/H/K series)
- Excavators: 311–325B / M318 wheeled
- Motor graders: 120H through 160K
Confirm your engine S/N range before ordering. C7/C9 ACERT and Twin Turbo C15 models use a different filter family.









