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Search: 188 results found for "Back-Up Ring"

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  • General seal illustration for 85800003 aftermarket back-up ring for CNH; illustrative components

    85800003 Back-Up Ring For CNH | Ruijueparts

    85800003 Back-Up Ring For CNH | Ruijueparts

    Product Description85800003 is an aftermarket back-up ring supplied by Ruijueparts. CNH listings identify this as a back-up ring; it is included in service groups such as hydraulic cylinder kit 87428868. The surrounding kit number is not an interchangeable part number. Order the individual ring or full kit according to repair...
    Regular price $2.87
    Regular price Sale price $2.87
    Unit price /  per 
  • General seal illustration for 85800007 aftermarket back-up ring for CNH; illustrative components

    85800007 Back-Up Ring For CNH | Ruijueparts

    85800007 Back-Up Ring For CNH | Ruijueparts

    Product Description85800007 is an aftermarket back-up ring supplied by Ruijueparts. The CNH parts listing identifies a back-up ring. A New Holland LB90.B hydraulic lifting-cylinder diagram lists this reference among the cylinder service parts. A back-up ring is not an O-ring or a complete kit. Preserve the specified seal arrangement and...
    Regular price $4.16
    Regular price Sale price $4.16
    Unit price /  per 
  • Aftermarket 561-33-71471 brake backup ring for selected Komatsu HD785-7 rigid mining dump truck front axle brake assemblies.

    561-33-71471 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    561-33-71471 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    Product Description This aftermarket 561-33-71471 brake backup ring is referenced for selected Komatsu HD785-7 front axle brake assemblies. It is an individual support ring in the brake sealing arrangement, not a complete brake seal kit or a standard O-ring. The reference is listed in both left- and right-hand front brake...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • Aftermarket 561-33-71480 brake backup ring for selected Komatsu HD785-7 rigid mining dump truck front wheel brake assemblies.

    561-33-71480 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    561-33-71480 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    Product Description This aftermarket 561-33-71480 brake backup ring is referenced for the front wheel brake assembly of selected Komatsu HD785-7 rigid mining dump trucks. It is an individual sealing-support ring used within the brake assembly, rather than a complete seal kit or a standard O-ring. When the brake assembly is...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • Aftermarket 561-33-71450 rear brake backup ring for selected Komatsu HD785-7 rigid mining dump truck rear axle final brake assemblies.

    561-33-71450 Rear Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    561-33-71450 Rear Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    Product Description This aftermarket 561-33-71450 rear brake backup ring is referenced for the rear wheel and rear axle final brake assembly of selected Komatsu HD785-7 rigid mining dump trucks. It is an individual brake sealing-support component, not a complete seal kit or a standard O-ring. The ring is listed in...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • Aftermarket 561-34-71661 brake backup ring for selected Komatsu HD785-7 rigid mining dump truck front axle brake assemblies.

    561-34-71661 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    561-34-71661 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    Product Description This aftermarket 561-34-71661 brake backup ring is referenced for the front axle brake assembly of selected Komatsu HD785-7 mining dump trucks. It is an individual sealing-support component, not a complete hydraulic cylinder repair kit. In a brake-piston sealing arrangement, a backup ring helps support the mating seal under...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • Aftermarket 561-34-71590 brake backup ring for selected Komatsu HD785-7 rigid mining dump truck front wheel brake assemblies.

    561-34-71590 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    561-34-71590 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    Product Description This aftermarket 561-34-71590 brake backup ring is referenced for selected Komatsu HD785-7 rigid mining dump truck front wheel brake assemblies. It is a single sealing-support component within the brake system, not a hydraulic cylinder seal kit or a complete brake overhaul kit. A backup ring must be installed...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • Aftermarket 561-34-71580 brake backup ring for selected Komatsu HD785-7 rigid mining dump truck front wheel brake assemblies.

    561-34-71580 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    561-34-71580 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    Product Description This aftermarket 561-34-71580 brake backup ring is referenced in the front wheel brake sealing arrangement of selected Komatsu HD785-7 rigid mining dump trucks. It is a single brake-assembly component rather than a complete repair kit. The backup ring works with its specified mating seal to support the sealing...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • Aftermarket 561-34-71680 brake backup ring for selected Komatsu HD785-7 rigid mining dump truck front wheel brake assemblies.

    561-34-71680 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    561-34-71680 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    Product Description This aftermarket 561-34-71680 brake backup ring is referenced for selected Komatsu HD785-7 rigid mining dump truck front wheel brake assemblies. It is an individual backup ring within the brake sealing arrangement, not a complete seal kit or a general-purpose O-ring. During brake service, the ring must be matched...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • Aftermarket 561-33-71550 rear brake backup ring for selected Komatsu HD785-7 rigid mining dump truck rear axle final brake assemblies.

    561-33-71550 Rear Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    561-33-71550 Rear Brake Backup Ring For Komatsu HD785-7 | Ruijueparts

    Product Description This aftermarket 561-33-71550 rear brake backup ring is referenced for selected Komatsu HD785-7 rear wheel and rear axle final brake assemblies. It is an individual sealing-support component used in the brake-piston arrangement, not a full brake repair kit or a standard O-ring. The correct component must be selected...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • Aftermarket 569-33-71520 rear brake ring for selected Komatsu HD465 and HD605 mining dump truck rear axle brake assemblies

    569-33-71520 Rear Brake Ring For Komatsu HD465-7EO | Ruijueparts

    569-33-71520 Rear Brake Ring For Komatsu HD465-7EO | Ruijueparts

    Product Description This aftermarket 569-33-71520 rear brake ring is referenced in selected Komatsu mining dump truck rear axle and rear wheel brake assemblies. It is an individual component positioned within the brake-piston arrangement during brake servicing; it is not a complete seal kit, hydraulic cylinder kit, or general-purpose O-ring. Although...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • Aftermarket 569-33-71510 rear brake piston ring for selected Komatsu HD465 and HD605 mining dump truck rear axle brake assemblies

    569-33-71510 Rear Brake Piston Ring For Komatsu HD465-7EO | Ruijueparts

    569-33-71510 Rear Brake Piston Ring For Komatsu HD465-7EO | Ruijueparts

    Product Description This aftermarket 569-33-71510 rear brake piston ring is referenced in selected Komatsu mining dump truck rear axle and rear wheel brake assemblies. It is an individual ring used with the brake piston and adjacent sealing components during brake overhaul; it is not a complete brake seal kit or...
    Regular price $179.10
    Regular price Sale price $179.10
    Unit price /  per 
  • 308-1838 aftermarket hydraulic relief valve seal kit with O-rings and split back-up rings for compatible Caterpillar equipment

    308-1838 Hydraulic Relief Valve Seal Kit For Caterpillar 257D | Ruijueparts

    308-1838 Hydraulic Relief Valve Seal Kit For Caterpillar 257D | Ruijueparts

    Product Description 308-1838 is an aftermarket hydraulic manifold relief-valve seal kit reference for compatible Caterpillar equipment. Official data identifies O-rings and split back-up rings for servicing the manifold relief valve group. It is a control valve kit, not a hydraulic cylinder, travel motor, or transmission repair kit. The same machine...
    Regular price $14.93
    Regular price Sale price $14.93
    Unit price /  per 
  • 280-7849 aftermarket piston motor seal kit for Caterpillar skid steer loader hydrostatic drive motor repair

    280-7849 Piston Motor Seal Kit For Caterpillar 226D | Ruijueparts

    280-7849 Piston Motor Seal Kit For Caterpillar 226D | Ruijueparts

    Product Description For a skid steer with a leaking hydrostatic drive motor or a piston motor scheduled for overhaul, 280-7849 is an aftermarket seal kit reference used within the compatible piston motor assembly. The official reference identifies sealing and service items, including a dust seal, shaft seal, O-rings, piston seal...
    Regular price $97.01
    Regular price Sale price $97.01
    Unit price /  per 
  • 2401-9225KT aftermarket main pump seal kit for Doosan; general seal illustration, not actual contents

    2401-9225KT Main Pump Seal Kit For Doosan | Ruijueparts

    2401-9225KT Main Pump Seal Kit For Doosan | Ruijueparts

    Product Description2401-9225KT is an aftermarket main hydraulic pump seal kit referenced for selected Doosan Solar 220LC-V applications. The pump feeds the hydraulic system during digging and machine movement; this kit is separate from cylinder or motor seal kits. Confirm the pump identification and complete kit reference, including the suffix, before...
    Regular price $10.14
    Regular price Sale price $10.14
    Unit price /  per 
  • 180-27-11620 aftermarket final drive O-ring for selected Komatsu HM350 and HM400 articulated dump truck powertrain applications

    180-27-11620 Final Drive O-Ring For Komatsu HM350-1 | Ruijueparts

    180-27-11620 Final Drive O-Ring For Komatsu HM350-1 | Ruijueparts

    Product Description 180-27-11620 is an aftermarket final drive O-ring matched to the original Komatsu part-number reference. It is a single sealing component used in specified articulated dump truck final drive and brake hub assemblies, not a hydraulic cylinder repair kit or complete final drive seal kit. Its role is to...
    Regular price $8.96
    Regular price Sale price $8.96
    Unit price /  per 
  • 71445839 seal kit aftermarket replacement for Hitachi hydraulic systems

    71445839 Seal Kit Replacement for Hitachi / Fiat‑Hitachi Equipment

    71445839 Seal Kit Replacement for Hitachi / Fiat‑Hitachi Equipment

    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:...
    Regular price $4.32
    Regular price Sale price $4.32
    Unit price /  per 
  • K9000240 Seal Ring DOOSAN

    K9000240 Seal Ring DOOSAN

    K9000240 Seal Ring DOOSAN

    Choose the seal kit of Ruijueparts. Slash costly downtime. Condition: New – Open box: A new, unused item Brand: DOOSAN replacementTarget Audience: Customers with long-term procurement needs for sealing kits, including repair shops, distributors, import/export trading companies, and construction machinery rental companies.
    Regular price $28.16
    Regular price Sale price $28.16
    Unit price /  per 
  • VOE4789826 aftermarket wheel rim O-ring for selected Volvo articulated haulers and wheel loaders

    VOE4789826 Wheel Rim O-Ring For Volvo | Ruijueparts

    VOE4789826 Wheel Rim O-Ring For Volvo | Ruijueparts

    Product Description VOE4789826, also referenced as 4789826, is an aftermarket wheel rim O-ring for selected Volvo construction equipment. It is a single sealing ring used in specified front or rear wheel-rim assemblies, rather than a hydraulic cylinder repair kit or a complete multi-piece seal kit. In the applicable rim configuration,...
    Regular price $1.43
    Regular price Sale price $1.43
    Unit price /  per 
  • General seal illustration for 85808278 aftermarket o-ring for CNH; illustrative components

    85808278 O-Ring For CNH | Ruijueparts

    85808278 O-Ring For CNH | Ruijueparts

    Product Description85808278 is an aftermarket o-ring supplied by Ruijueparts. The dealer catalogue identifies 85808278 as the replacement for O-ring 73300801. Referenced tractor diagrams include CASE IH 2120 and 2130 steering-pump and hydraulic piping groups. This is an individual O-ring; confirm the exact diagram position and serial range before using an...
    Regular price $2.29
    Regular price Sale price $2.29
    Unit price /  per 
  • S8180211 Seal Ring DL300-3 DOOSAN

    S8180211 Seal Ring DL300-3 DOOSAN

    S8180211 Seal Ring DL300-3 DOOSAN

    Choose the seal kit of Ruijueparts. Slash costly downtime.Fits equipment: DL300-3 Condition: New – Open box: A new, unused item Brand: DOOSAN replacementTarget Audience: Customers with long-term procurement needs for sealing kits, including repair shops, distributors, import/export trading companies, and construction machinery rental companies.
    Regular price $5.10
    Regular price Sale price $5.10
    Unit price /  per 
  • 126-1876 aftermarket steel cushion seal ring for selected Caterpillar hydraulic cylinder assemblies, 95 mm OD x 89 mm ID x 6 mm

    126-1876 Cushion Seal Ring For Caterpillar 320 | Ruijueparts

    126-1876 Cushion Seal Ring For Caterpillar 320 | Ruijueparts

    Product Description 126-1876 is an aftermarket replacement cushion seal ring for selected Caterpillar hydraulic cylinder assemblies. It is an individual steel seal component, not a complete cylinder repair kit or a conventional O-ring. Reference dimensions are 95 mm OD × 89 mm ID × 6 mm axial height. Published cylinder-kit...
    Regular price $4.48
    Regular price Sale price $4.48
    Unit price /  per 
  • Hydraulic Breaker Seal Kits Explained: Components, Functions and Applications
    October 7, 2026

    Hydraulic Breaker Seal Kits Explained: Components, Functions and Applications

    Blog
    October 7, 2026

    Hydraulic Breaker Seal Kits Explained: Components, Functions and Applications

    Blog
  • Ruijueparts hydraulic cylinder seal kit for CAT 6050 mining excavator, displayed in front of an open-pit mine with heavy-duty mining equipment including hydraulic excavator, haul truck, and bulldozer.
    July 22, 2026

    How a Peruvian Mining Enterprise Evaluates Aftermarket CAT 6050 / 6050 FS Seal Kit Suppliers Befo...

    Blog
    July 22, 2026

    How a Peruvian Mining Enterprise Evaluates Aftermarket CAT 6050 / 6050 FS Seal Kit Suppliers Befo...

    Blog
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