Best Hydraulic Oil for Log Splitters: A Practical Guide
Choosing the right hydraulic oil filter for a log splitter helps maintain hydraulic pressure, extend pump life, and reduce downtime. The five options below target popular models from MTD, Troy-Bilt, Bobcat, and similar brands, offering reliable cross-reference parts and robust filtration. The summary table below provides a quick view of each product’s compatibility and standout benefits at a glance.
| Brand | Product | Compatible With | Key Benefit |
|---|---|---|---|
| Chamixx | 723P0405 Filter | MTD/Troy-Bilt LS27 family; Bobcat 700-721; 522LS; 831LS; and more | Very broad model compatibility |
| Koreyoshi | 10 Micron Hydraulic Filter | MTD Cub Cadet 723-0405 family; Bobcat 6515541; Exmark 103-2146; and more | Higher filtration for cleaner oil |
| Automost | 723P0405 Filter | MTD/Troy-Bilt LS27/LS27CC/LS33CC/LS25; Bobcat 700-731; and more | OE-number cross references as replacements |
| Goduog | 723P0405 Filter | MTD/Troy-Bilt LS27/LS27CC; Bobcat 700-721; CaseIH and others | Wide cross-brand compatibility |
| GXFCY | 723P0405 Filter | MTD/Troy-Bilt LS27/LS27CC/LS33CC/GS21T; Bobcat 700-721; Gravely; John Deere 1200 hydro rake | Cross-brand support for many models |
Chamixx 723P0405 Filter for Log Splitters

The Chamixx hydraulic oil filter is designed as a direct replacement for multiple OE numbers, including 723-0405 and 723P0405. Its broader cross-reference list covers brands such as MTD Cub Cadet, Ariens, Stens, Bobcat, CaseIH, Caterpillar, Clark Equipment, Exmark, Gravely, Jacobsen, John Deere, Kubota, Scag, and Toro. This makes it a versatile option for owners who operate mixed fleets or plan to stock a single filter for several machines. The part is positioned as a heavy-duty filtration solution suitable for log splitters and compatible loaders.
Applied to log splitters within the LS27 family and beyond, this filter aims to maintain clean hydraulic oil, helping protect pumps and valves from contaminant buildup. The breadth of compatibility minimizes the need to carry multiple part numbers. For buyers seeking a straightforward replacement that aligns with common OE references, Chamixx delivers a broad alignment with many popular models and brands.
Koreyoshi 10 Micron Hydraulic Filter

The Koreyoshi hydraulic oil filter is designed for higher filtration precision with a 10-micron rating. It is described as compatible with a wide range of OE numbers including MTD Cub Cadet 723-0405 and 723P0405, as well as Bobcat 6515541 and other major brands. The filter is specified for 20 GPM high-flow systems and up to 200 PSI maximum pressure, with a 1″-12 UNF thread that fits many log splitters and hydraulic pumps. This combination makes it a strong option for owners who prioritize cleaner oil and longer component life in high-demand applications.
Users can leverage the 10-micron filtration to reduce particulate carryover entering critical hydraulic components, which may contribute to less wear over time. The Koreyoshi unit is marketed as a heavy-duty option suitable for most log splitters and compatible loaders, balancing filtration quality with broad compatibility. If your system benefits from finer filtration and you operate at higher flow rates, this filter may be an appropriate pick.
Automost 723P0405 Filter

The Automost filter is presented as a versatile cross-reference replacement, listing OE numbers such as 723-0405, 723P0405, WD-900-8041, and 120-818. It targets a broad set of compatible brands and models, including MTD/Troy-Bilt LS27, LS27CC, LS33CC, LS25, LS27T, LS25CC, GS27T, LS33T, GS21T, 522LS, and 831LS, plus Bobcat skid-steer loaders (700-731, 732, and related models). The description emphasizes cross-brand compatibility to simplify stock and maintenance planning for multi-model fleets, especially on jobsites with mixed equipment.
Automost highlights its ability to act as a direct OE replacement, which can streamline procurement for shops that rely on a single part across several units. The result is a practical option for managers seeking reliable performance with broad applicability across log splitters and compact loaders.
Goduog 723P0405 Filter

Goduog’s 723P0405 hydraulic oil filter is framed as a widely compatible option, with references to 723P0405 and 723-0405 alongside 120-818 and 6515541 in its listing. The product highlights a broad application scope that includes MTD and Troy-Bilt LS27/LS27CC/GS21T/522LS and Bobcat 700-721, among others. The accompanying details also mention compatibility with CaseIH, Caterpillar, Gravely, Jacobsen, John Deere, Kubota, Scag, Toro, and Exmark. This level of cross-brand support is designed to help buyers who operate multiple brands and want a single part number family to cover most needs.
In practice, this filter aims to streamline maintenance by providing a durable replacement that maps to several common OE references. For fleet operators with a mix of log splitters and compact loaders, Goduog’s listing suggests a practical, widely compatible choice that reduces part hunting time on job sites.
GXFCY 723P0405 Filter

GXFCY’s offering presents a comprehensive compatibility footprint, listing OE references such as 723-0405, 723P0405, WD-900-8041, 120-818, 6515541, and 09414200. The product text emphasizes fitment with MTD/Troy-Bilt LS27, LS27CC, LS33CC, LS33T, GS21T, and 522LS, plus Bobcat 700-731 and several other major brands. It also notes compatibility with John Deere 1200 Hydro Rake, Case 430 Scat Back, Caterpillar V-series machines, and Gravely models, suggesting a broad cross-brand approach that can simplify inventory for multi-brand shops.
For buyers who manage diverse equipment fleets, GXFCY offers a sum of compatibility references that may help reduce the number of different filters carried. The emphasis on cross-brand applicability makes this option appealing for service teams prioritizing availability and simplified sourcing.
Buying Guide
Key purchase considerations
When selecting a hydraulic oil filter for a log splitter, align your choice with model compatibility, filtration level, flow capacity, and thread size. Vendors often list cross-reference OE numbers (such as 723-0405, 723P0405, 120-818, and 6515541), which helps ensure a proper fit across brands. A finer filtration rating (for example, 10 microns) can improve oil cleanliness but verify that the system can accommodate the pressure and flow requirements. Look for filters with robust construction and reliable seals to prevent leaks under high-pressure operation. Availability and warranty also matter for ongoing maintenance planning.
Model compatibility and cross-references
Choose filters explicitly described as replacements for the OE numbers used by your equipment. If you operate multiple brands (MTD, Bobcat, Gravely, John Deere, etc.), consider a cross-reference-friendly option that claims broad compatibility. This reduces stocking complexity and minimizes downtime when parts are needed quickly on job sites. Always confirm thread size (commonly 1″-12 UNF for these models) and ensure the mounting orientation suits your setup.
Filtration quality and system requirements
Filtration quality should match your hydraulic system’s needs. A 10-micron filter provides finer contaminant removal, which can extend valve and pump life in demanding environments. However, higher filtration must be balanced against potential flow restrictions in low-pressure systems. Check your splitter’s GPM rating and operating PSI to ensure the filter’s specifications align with the equipment’s design. Consider whether you want a dedicated filter or a combined replacement that includes other components, depending on your maintenance workflow.
Practical considerations
- Availability: Ensure your chosen part is readily in stock or has a reliable alternative from the same cross-reference family.
- Cost vs. replacement lifecycle: Compare unit price against the expected service interval and downtime costs.
- Warranty and seller credibility: Prefer listings with clear warranty terms and reputable vendors to ensure genuine or high-quality aftermarket parts.
- Compatibility checks: Use the table of OE references to verify fit with all machines in your fleet that might share this filter.