Product Overview The 71445777 hydraulic seal kit is a reliable aftermarket replacement for Hitachi machinery. Designed for hydraulic cylinders and bucket applications, it includes rod seals, piston seals, backup rings, and O-rings to restore sealing performance and prevent fluid leakage. It is suitable for servicing bucket hydraulic cylinders used in...

Product Description Keep your Komatsu D375A-5D bulldozer operating at peak performance with the 707-99-74490 Ripper Lift Cylinder Seal Kit. Engineered specifically for heavy-duty ripper systems (Serial No. 17743-UP), this high-grade aftermarket kit ensures exceptional sealing in high-pressure environments. Whether you are operating in standard conditions or extreme -50°C environments, our...

Product DescriptionAH210484 is an aftermarket cylinder rod seal kit 50mm supplied by Ruijueparts. John Deere references include 310G, 310SG, 410J, 650J and 648H; replacement catalogues identify a 50 mm rod-side kit across several cylinder positions. John Deere lists AHC11573 as a substitute reference. Check the cylinder and required components before...

Product Description246-5915 is an aftermarket hydraulic cylinder seal kit supplied by Ruijueparts for part-number-based replacement enquiries. The reference catalogue identifies a standard-size cylinder kit but does not provide a model compatibility list, so no machine or cylinder position is assumed here. Before ordering, provide the original kit number and installed...

Product Description The aftermarket 19001-12899 boom cylinder seal kit is referenced for the Takeuchi TB260 compact excavator boom cylinder 19001-12800. It is intended for rebuilding a verified 60 mm rod × 100 mm bore hydraulic cylinder when leakage or seal wear requires service. Buyers should identify the cylinder reference and...

Product Description 1543274C1 is an aftermarket hydraulic cylinder seal kit for selected CASE backhoe loader and crawler dozer/loader applications. This reference is used across more than one cylinder function, including specified dipper, loader lift, loader bucket, and loader clam cylinders. For distributors, the key is cylinder-level identification—not machine model alone....

Product Description231-0898 is an aftermarket hydraulic cylinder seal kit referenced for selected Caterpillar wheel loaders and the IT24F integrated toolcarrier. Before placing a maintenance order, identify the cylinder being rebuilt and compare its group number with the original kit reference. A loader model can use several cylinder configurations, and a...

Product Description This aftermarket hydraulic breaker seal kit is intended for verified Furukawa F6 breaker repair and overhaul applications. F6 breakers operate in demanding demolition, quarry, and construction environments, where worn seals may contribute to oil leakage, reduced impact efficiency, or unplanned service downtime. Before ordering, confirm the breaker model,...

Product Description This aftermarket hydraulic breaker seal kit is for verified Atlas Copco / Epiroc C140 hydraulic hammer repair applications. C140 is a hydraulic breaker model, not a carrier excavator model or hydraulic cylinder reference. The kit is intended for replacing applicable internal sealing components during planned hammer overhaul, leakage...

Product Description 991/00115 is an aftermarket hydraulic cylinder seal kit for selected JCB construction, telehandler, and excavator applications. This is a multi-application kit, not a single-purpose backhoe seal kit: published fitment data places it in boom, boom-lift, telehandler displacement, tilt, lift, and excavator dozer cylinder positions. The same original reference...

Product Description This aftermarket 991/00163 swing cylinder seal kit is referenced for selected JCB backhoe loader swing ram applications with a 50 mm piston rod and 90 mm cylinder bore. The swing cylinder moves the rear excavator assembly from side to side, so it must be distinguished from the boom,...

Product Description MT36519 is an aftermarket replacement hydraulic breaker seal kit reference for verified Montabert BRH125 hydraulic hammers. Independent breaker-parts catalogues identify MT36519 for BRH125 service, while 46294 is also used as a legacy cross-reference in some markets. The kit is intended for replacing applicable internal sealing components during planned...

Product Description THBB-301 is an aftermarket hydraulic breaker seal kit for a verified TOYO THBB-301 hydraulic hammer. It is used to replace applicable internal sealing elements during planned maintenance, oil-leak diagnosis, or breaker overhaul. The THBB-301 is a breaker attachment; this kit is not for the carrier excavator’s hydraulic cylinders....

Product Description The aftermarket 19000-75899 bucket cylinder seal kit is referenced for selected Takeuchi compact excavator bucket cylinders, including cylinder 19000-75800. It supports hydraulic cylinder rebuilding where external leakage, loss of bucket holding force, or worn sealing surfaces require service. This is a 45 mm rod × 80 mm bore...

Product Description Aftermarket VOE11709547 bucket cylinder seal kit for selected Volvo BL70, BL71, and BL71 Plus backhoe loaders. Designed for servicing the backhoe bucket hydraulic cylinder to renew sealing after leakage or cylinder disassembly. The reference size is a 60 mm rod × 90 mm bore; kit contents may include...

Product Description566-33-05015 is an aftermarket rear brake sealing kit referenced for Komatsu HD325-6 and HD405-6 dump truck applications. It services the matching rear brake assembly rather than a hydraulic lifting cylinder. Confirm the truck serial number, axle location and brake assembly before ordering, since front and rear brake service kits...

Product Description2401-9154K is an aftermarket main pump seal kit referenced for Doosan/Daewoo Solar 280LC-III applications. Its purpose is pump sealing; it should not be selected for a travel motor simply because another kit has a similar number. Keep the complete K-suffix reference and compare it with the installed pump service...

Product DescriptionMMV80780 is an aftermarket arm cylinder seal kit for matching CASE excavator applications. Parts listings identify it in arm or dipper cylinder groups, including CX240BLR, CX250C long-reach and CX300C references. Match the cylinder assembly and serial-specific diagram before ordering; a model name alone does not establish fit. Ruijueparts offers...

Product Description9595508 is an aftermarket piston-side seal kit with reference applications in several Liebherr mining-cylinder configurations. Its use is not limited to a single boom or bucket position, so the installed cylinder number is the most useful starting point for a purchasing check. Confirm the machine configuration and any separate...

Product Description 10X3211 is an aftermarket slew cylinder seal kit for the 55 mm rod version of the Terex Vectra TX740 backhoe loader swing cylinder, commonly referenced as SSP8020. A slew or swing cylinder moves the rear excavator assembly left and right; it is not a boom, dipper, or stabilizer...

Product Description RH418-71590 is an aftermarket bucket cylinder seal kit for Kubota U27-4 compact excavators, with U27-4CA included in aftermarket application references. This repair kit reference is associated with the bucket cylinder and a 40 mm rod × 65 mm bore. The bucket cylinder controls attachment curl and dump movement,...

Product Description 5001982M91 is an aftermarket low-spec loader lift cylinder seal kit for selected Terex/Fermec backhoe loaders. It is referenced for Wipro cylinder 6109310M91 and a 50 mm rod × 85 mm bore. The loader lift cylinder raises and lowers the front loader arms; it is different from the front...

Product Description THBB-101 is an aftermarket hydraulic breaker seal kit for a verified TOYO THBB-101 hydraulic hammer. It supports replacement of applicable internal sealing elements during routine maintenance, leakage diagnosis, or breaker overhaul. THBB-101 is commonly associated with a 57 mm tool diameter, but tool size alone cannot confirm the...

Part Name: 71445839 O‑RingMachine Models: Brand: HITACHI replacementType: Seal Kit / O‑Ring & Backup KitApplication: Used in hydraulic systems of Hitachi and Fiat‑Hitachi construction machinery to replace worn seals, maintain hydraulic pressure, and prevent fluid leakage and contamination.Size: Standard SizeSupply Ability: 10,000 sets per monthPerformance: Oil SealingPlace of Origin: ChinaPackaging Details:...