Hydraulic/Transmission Filter 126-2081 for Caterpillar Excavators & Wheel Loaders

Description

This 126-2081 hydraulic filter is a cartridge-style hydraulic/transmission filter element with an O-ring seal, engineered as a direct replacement for the Caterpillar 126-2081. It’s one of the most widely used hydraulic filters across CAT’s B-series and C-series excavator, wheel loader, and wheeled excavator lineup, designed to keep hydraulic and transmission systems clean and protect components from wear caused by contamination.

Product Overview

The 126-2081 hydraulic filter uses pleated filter media in a cartridge format with an O-ring seal, designed as an integrated component of the hydraulic system. It’s built to keep contaminants from wearing down the tight tolerances within high-pressure hydraulic systems — acting as a first line of defense against pump, valve, and cylinder wear. Each unit is dimensionally verified against OEM measurements and tested for filtration performance before shipment — not just matched by part number.

Fits the Following Caterpillar Models

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

Key Features

• Cartridge-style design with O-ring seal, designed as an integrated hydraulic system component
• Advanced-efficiency filtration, providing consistent protection against high-pressure system contamination
• 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’s B-series and C-series excavators, wheeled excavators, and forest products equipment

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.

Why Source This Hydraulic Filter from IXIN Filter

We manufacture this 126-2081 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 spin-on filter or a cartridge element? This is a cartridge-style element with an O-ring seal, designed to install into a reusable filter housing rather than screw on and off directly like a spin-on filter.

What’s the difference between this and the 093-7521 hydraulic filter? The 093-7521 is a smaller spin-on hydraulic/transmission filter for standard-efficiency applications, while the 126-2081 is a larger cartridge-style element used across a different range of CAT B-series and C-series excavators. Confirm your specific machine model and OEM part number before ordering, as the two are not interchangeable.

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.

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Ready to order or request a sample? Contact IXIN Filter for pricing, MOQ, and lead time on the 126-2081 hydraulic filter.