Carquest Premium Heavy-Duty Hydraulic Spin-On Filter for Construction Equipment is built to protect hydraulic and transmission systems from harmful contaminants that can reduce performance or cause premature wear. Designed for medium-pressure return line and lube circuits, this filter provides reliable dirt-holding capacity, durable construction, and dependable sealing for heavy-duty applications. Its robust design ensures stable operation in construction, bus, and vocational truck environments where uptime is critical. Specifications: Medium-pressure spin-on hydraulic filter with 1-12 UNF thread, height of approximately 5.4" (137 mm), and outer diameter of 3.7" (94 mm). Features cellulose media rated nominally at 10–25 microns, an integrated bypass valve set around 8–11 PSI, and durable housing for consistent service in demanding environments. Cross-references: WIX 57182, Baldwin BT251, Fleetguard HF6077, Donaldson P550388, NAPA 7182, Luber-Finer LH5179. Common applications (model families): Suitable for Allison transmission return lines and medium-duty hydraulic systems in Freightliner vocational trucks, buses, and a wide range of construction equipment that use 1-12 spin-on filter heads. Disclaimer: The information provided, including specifications, cross-references and vehicle applications, is for reference only. Variations may exist by application, engine, and OE system requirements such as thread type, fuel compatibility, micron rating, and pressure ratings. Customers are responsible for verifying all physical specifications (dimensions, thread size, fitment, etc.) before ordering. Low Country Filters is not liable for incorrect part orders.
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