Fuel Filter 1R-0751 for Caterpillar 3116, 3126, 3306, and C7 Engines
1R-0751 fuel filter for Caterpillar 3116, 3126, 3306, and C7 engines. OEM cross-reference verified. Bulk and OEM orders welcome from IXIN Filter.
Description
This 1R-0751 fuel filter is a high-efficiency secondary spin-on fuel filter engineered as a direct replacement for the Caterpillar 1R-0751, one of the most widely used fuel filters across CAT’s mid-range diesel engine lineup. It’s designed to protect fuel injectors and fuel system components from fine particulate contamination in demanding on- and off-highway diesel applications.
Product Overview
The 1R-0751 fuel filter uses advanced-efficiency cellulose filter media rated for fine particulate filtration, commonly cited around the 2 micron range. As a secondary fuel filter, it’s built to capture the smallest, most damaging contaminant particles before they reach the fuel injection system. Each unit is manufactured with a standard 7/8-14 UNF spin-on thread to match OEM housing specifications, and dimensionally verified and tested for filtration performance before shipment — not just matched by part number.
Fits the Following Caterpillar Engines & Equipment
| Category | Engines / Models |
|---|---|
| Core Engines | Caterpillar 3116, 3126, 3126B, 3126E, 3306, C7, C9, C-9, C6.6, 3114, 3046 |
| Medium-Duty Trucks | Ford F650, F750, T-Series; GMC/Chevrolet Kodiak, Topkick (with CAT 3126/C7 engine options) |
| Construction & Compaction | CAT paving compactors (CB-634, CP-533, CS-531, CS-533, CS-563, CS-573, CS-583 series) |
| Wheel Loaders / Scrapers | CAT 910-962 series wheel loaders, 613C wheel tractor-scraper |
| Motor Graders | CAT 120H, 120K, 135H, 140K, 160K |
Always confirm your engine’s serial number range against the OEM cross-reference before ordering, as fuel system filtration specifications can vary across production years within the same engine family.
OEM Cross-Reference Numbers
| Brand | Number |
|---|---|
| Caterpillar | 1R-0751, 1R0751 |
| Baldwin | BF7634, BF7632 |
| Donaldson | P551314, P551315 |
| Fleetguard | FF5321, FF5324, FF5309 |
| WIX | 33626 |
| NAPA | 3626 |
Key Features
- Fine particulate filtration, commonly cited in the 2 micron range for advanced filtration efficiency
- Standard 7/8-14 UNF spin-on thread to match OEM housing specifications
- Dimensionally verified against OEM specifications, not just cross-reference number matching
- Consistent batch quality control, with raw material and pre-shipment testing on every production run
- Broad application coverage, spanning CAT construction equipment, wheel loaders, motor graders, and medium-duty trucks using the 3126/C7 engine family
Specifications (Publicly Referenced Dimensions)
Dimensions below are compiled from publicly available cross-reference filter databases, including Fuel Filter Cross Reference, and are provided as a reference guide. Please verify against your engine’s actual filter housing or OEM documentation before bulk ordering — production-year variations within the same engine family can affect exact fitment.
| Spec | Detail |
|---|---|
| Height | 181.5 mm |
| Outer Diameter | 85.7 mm |
| Thread | 7/8-14 UNF-2B |
| Filter Type | Secondary spin-on fuel filter |
| Filter Media | Advanced-efficiency cellulose, approx. 2 micron rating |
| Application | CAT 3116/3126/3306/C7 engine family, construction and compaction equipment, medium-duty trucks |
| Packaging Options | Standard retail box, bulk carton, or private-label packaging available |
Why Source This Fuel Filter from IXIN Filter
We manufacture this 1R-0751 fuel filter in our own production facility, with quality control checkpoints from raw material inspection through final pre-shipment testing. If you’re sourcing for a distribution business or fleet, we can provide:
- Sample units for independent testing before a bulk order
- Documentation on OEM cross-reference verification
- Flexible MOQ and private-label packaging options
- Consistent batch-to-batch quality for repeat orders
Frequently Asked Questions
What engines use the 1R-0751 fuel filter? It’s used across Caterpillar’s 3116, 3126, 3126B, 3126E, 3306, C7, C9, and C6.6 engine family, including applications in construction equipment, wheel loaders, motor graders, and medium-duty trucks such as the Ford F650/F750 and GMC Kodiak/Topkick with CAT engine options.
Is this a primary or secondary fuel filter? The 1R-0751 is a secondary fuel filter, designed to capture the finer particulate contamination that a primary filter may not remove.
Will this fit all the engines and models listed? It fits the engine family and equipment listed above, but fuel system configurations can vary by production year and serial number range. We recommend confirming your engine’s specific configuration before ordering, especially for bulk purchases.
Do you offer samples before a bulk order? Yes. We recommend requesting a sample for independent testing before committing to a bulk order, especially for first-time buyers.
Ready to order or request a sample? Contact IXIN Filter for pricing, MOQ, and lead time on the 1R-0751 fuel filter.
