Hydraulic Oil Filter 093-7521 for Caterpillar Excavators & Wheel Loaders
093-7521 hydraulic filter for Caterpillar excavators and wheel loaders. OEM cross-reference verified. Bulk and OEM orders from IXIN Filter.
Description
This 093-7521 hydraulic filter is a standard-efficiency spin-on hydraulic/transmission filter engineered as a direct replacement for the Caterpillar 093-7521, one of the most widely used hydraulic filters across CAT’s excavator, wheel loader, and mobile hydraulic power unit lineup. It’s designed to maintain system cleanliness and protect pumps, valves, and cylinders from contamination in normal and light-duty hydraulic applications.
Product Overview
The 093-7521 hydraulic filter uses pleated filter media designed to capture particulate contamination from hydraulic and transmission fluid, helping protect precision hydraulic components from abrasive wear. As a standard-efficiency filter, it’s built for normal and light-duty hydraulic applications — for higher-contamination environments or more demanding duty cycles, an advanced-efficiency hydraulic filter may be a better fit. Each unit is manufactured with a standard 1-1/8-16 UN spin-on thread to match OEM housing specifications and dimensionally verified before shipment — not just matched by part number.
Fits the Following Caterpillar Models & Engines
| Category | Models |
|---|---|
| Excavators | CAT E312C, E312D, E320C, 320B, 320BL, 320BLN, 320BS, 320C, 320D, 320D2, 320DL, 320DLN, 311B |
| Larger Excavators | CAT 345C, 349D, 352 |
| Wheel-Type Excavators / Loaders | CAT E70, E120, E140, E180, E200B, E240, E300, E450, EL180, EL240 |
| Mobile Hydraulic Power Units | CAT 323D L, 323D LN, 324D LN, 325C, 325D, 329D L, 329E, 330C, 330D, 330D L, 336D L, 336E, 345C L, 349D L, 349E |
| Track Feller Bunchers | CAT 1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590 |
| Engines | Caterpillar 3054, 3054T, 3046, 3066, 3116, 3126, 3126B, 3176C, C-9, C4.4 |
Always confirm your machine’s serial number range against the OEM cross-reference before ordering, as hydraulic filtration specifications can vary across production years within the same model.
OEM Cross-Reference Numbers
| Brand | Number |
|---|---|
| Caterpillar | 093-7521, 0937521, 093-7520, 0937520 |
| Baldwin | BT305 |
| Donaldson | P551348 |
| Fleetguard | HF35018 |
| WIX | 51621, 551621 |
| Kubota | 52200-15320, HH520-15320 |
| Fram | P8480 |
| Napa | 1621 |
| Luberfiner | LFH8217 |
| Mahindra | 15645153410 |
Key Features
- Standard-efficiency filtration designed for normal and light-duty hydraulic and transmission applications
- Standard 1-1/8-16 UN 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 excavators, wheel loaders, mobile hydraulic power units, and track feller bunchers
Specifications (Publicly Referenced Dimensions)
Dimensions below are compiled from publicly available cross-reference filter databases, including Fuel Filter Cross Reference, and were consistent across multiple independent sources. Please verify against your machine’s actual filter housing or OEM documentation before bulk ordering.
| Spec | Detail |
|---|---|
| Height | 181 mm |
| Outer Diameter | 94 mm |
| Thread | 1-1/8-16 UN |
| Filter Type | Spin-on hydraulic/transmission filter |
| Filter Media | Pleated filter media, standard efficiency |
| Application | Excavators, wheel loaders, mobile hydraulic power units |
| Packaging Options | Standard retail box, bulk carton, or private-label packaging available |
Why Source This Hydraulic Filter from IXIN Filter
We manufacture this 093-7521 hydraulic 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
Is this a hydraulic filter or a transmission filter? The 093-7521 is used across both hydraulic and transmission systems on applicable CAT equipment — it’s designed as a general-purpose spin-on filter for normal and light-duty applications in either system.
What’s the difference between this and an advanced-efficiency hydraulic filter? Standard-efficiency filters like the 093-7521 are suited for normal and light-duty applications. For equipment operating in high-contamination environments or under more demanding duty cycles, an advanced-efficiency hydraulic filter typically offers finer filtration and longer service intervals.
Will this fit all the models listed? It fits the equipment listed above, but hydraulic system configurations can vary by production year and serial number range. We recommend confirming your machine’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 093-7521 hydraulic filter.
