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            S74DC-74-135 (Commercial / Parker) Replacement SAT Dump Hoist Cylinders image
            S74DC-74-135 (Commercial / Parker) Replacement SAT Dump Hoist Cylinders
            S74DC-74-161 (Commercial / Parker) Ox Bodies MAC Trailer Replacement SAT Telescopic Cylinders image
            S74DC-74-161 (Commercial / Parker) Ox Bodies MAC Trailer Replacement SAT Telescopic Cylinders
            S53DC-66-84 (Commercial / Parker) Replacement SAT Dump Trailer Cylinders image
            S53DC-66-84 (Commercial / Parker) Replacement SAT Dump Trailer Cylinders
            S63DC-102-138 (Commercial / Parker) Replacement SAT Dump Hoist Cylinders image
            S63DC-102-138 (Commercial / Parker) Replacement SAT Dump Hoist Cylinders
            S63DC-102-120 (Commercial / Parker) Heil Replacement SAT Dump Hoist Cylinders image
            S63DC-102-120 (Commercial / Parker) Heil Replacement SAT Dump Hoist Cylinders
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            Replacement Hydraulic Snow Blade Angling Cylinder for Bobcat (PN: 6673608) 60, 72, 84 and 96-Inch Snowplow image
            Replacement Hydraulic Snow Blade Angling Cylinder for Bobcat (PN: 6673608) 60, 72, 84 and 96-Inch Snowplow
            Replacement Hydraulic Thumb/Bucket Clamp Cylinder for John Deere and Hitachi (PN: AH216639) Excavator Models 26-30 Series, ZX26-ZX35 Series, 110TLB image
            Replacement Hydraulic Thumb/Bucket Clamp Cylinder for John Deere and Hitachi (PN: AH216639) Excavator Models 26-30 Series, ZX26-ZX35 Series, 110TLB
            Replacement Hydraulic Thumb/Bucket Clamp Cylinder for Bobcat (PN: 7199435) Excavator Models 225-430 Series, E32-E40 Series image
            Replacement Hydraulic Thumb/Bucket Clamp Cylinder for Bobcat (PN: 7199435) Excavator Models 225-430 Series, E32-E40 Series
            Replacement Hydraulic Lift Cylinder for Bobcat (PN: 6586700) Stump Grinder Model SG30 image
            Replacement Hydraulic Lift Cylinder for Bobcat (PN: 6586700) Stump Grinder Model SG30
            Replacement Hydraulic Boom Cylinder for Bobcat (PN: 7191555) Excavator Models E32, E32i, E35, E35i image
            Replacement Hydraulic Boom Cylinder for Bobcat (PN: 7191555) Excavator Models E32, E32i, E35, E35i
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          • Series 3, NFPA Tie-Rod Cylinders, Aluminum – Standard Duty Pneumatic (1.5″ – 6.0″ Bore)
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          • Series 4, NFPA Tie-Rod Cylinders, Steel – Heavy Duty Pneumatic (1.5″ – 6.0″ Bore)
          • Series 5, NFPA Tie-Rod Cylinders, Steel – Standard Duty Hydraulic – (1.5″ – 8.0″ Bore)
          • Series 5, NFPA Tie-Rod Cylinders, Steel – Standard Duty Hydraulic – (1.5″ – 8.0″ Bore)
          • Series 6, NFPA Tie-Rod Cylinders, Steel – Heavy Duty Hydraulic (1.5″ – 8.0″ Bore)
          • Series 6, NFPA Tie-Rod Cylinders, Steel – Heavy Duty Hydraulic (1.5″ – 8.0″ Bore)
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            2.00 Bore 1.25 Rod Internally Threaded Head Seal Kit image
            2.00 Bore 1.25 Rod Internally Threaded Head Seal Kit
            2.50 Bore 1.50 Rod Internally Threaded Head Seal Kit image
            2.50 Bore 1.50 Rod Internally Threaded Head Seal Kit
            2.50 Bore Wide Piston Seal Kit image
            2.50 Bore Wide Piston Seal Kit
            4.00 Bore Wide Piston Seal Kit image
            4.00 Bore Wide Piston Seal Kit
            3.50 Bore 1.75 Rod Internally Threaded Head Seal kit image
            3.50 Bore 1.75 Rod Internally Threaded Head Seal kit

          • Featured Seal Kits

            Replacement Arm Seal Kit for Kubota Model KX080-3 image
            Replacement Arm Seal Kit for Kubota Model KX080-3
            Premium Aftermarket Lift Seal Kit for Bobcat Model S220 image
            Premium Aftermarket Lift Seal Kit for Bobcat Model S220
            Premium Aftermarket Tilt Seal Kit for Bobcat Models S220, S250, S300 image
            Premium Aftermarket Tilt Seal Kit for Bobcat Models S220, S250, S300
            Premium Aftermarket Lift Seal Kit for Bobcat Model 853 image
            Premium Aftermarket Lift Seal Kit for Bobcat Model 853
            Premium Aftermarket Boom and Stabilizer Seal Kit for Bobcat Backhoe Loader Attachment Model 709 image
            Premium Aftermarket Boom and Stabilizer Seal Kit for Bobcat Backhoe Loader Attachment Model 709
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            • The Mighty Tankholder

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            The Mighty Tankholder image
            The Mighty Tankholder
            Replacement Adjustable Hook Spanner Wrench for Parker (PN: 3763067006) image
            Replacement Adjustable Hook Spanner Wrench for Parker (PN: 3763067006)
            Lifting Ring – Sleeve or Main OD 7 7/8″ – 3763067012 image
            Lifting Ring – Sleeve or Main OD 7 7/8″ – 3763067012
            Stop Ring Wrench Kit image
            Stop Ring Wrench Kit
            Stop Ring Wrench – Slides Over 7.90″ Sleeve Into 9.38″ Sleeve image
            Stop Ring Wrench – Slides Over 7.90″ Sleeve Into 9.38″ Sleeve

          • Featured Tools

            The Mighty Tankholder image
            The Mighty Tankholder
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Home » Shop » Aftermarket Hydraulic Cylinder Component Parts & Accessories » Hydraulic Cylinder Accessories » Steel Plug O-Ring Boss

Steel Plug O-Ring Boss

Steel Plug O-Ring Boss fittings are used to seal off unused or service ports in hydraulic cylinders and related components. Made from durable steel, these threaded plugs fit into O-ring boss (ORB) ports and use a compressed O-ring to create a secure, leak-free seal—relying on face sealing rather than thread sealing. Ideal for high-pressure systems where reliability is critical. FASTSHIP available on select sizes—order by 12:00 CST for same-day shipping. Can’t find the fit you need? Call for assistance. Demolish Downtime with fittings that seal it right.

Showing all 9 resultsSorted by popularity

  • Steel Plug O-Ring Boss

    Steel Plug O-Ring Boss, 1-5/16″-12 SAE #16

    SKU: 6500008016 Categories: Aftermarket Hydraulic Cylinder Component Parts & Accessories, Hydraulic Cylinder Accessories, Steel Plug O-Ring Boss
    Call For Availabilty
  • Steel Plug O-Ring Boss

    Steel Plug O-Ring Boss, 1-1/16″-12 SAE #12

    SKU: 6500008020 Categories: Aftermarket Hydraulic Cylinder Component Parts & Accessories, Hydraulic Cylinder Accessories, Steel Plug O-Ring Boss
    Call For Availabilty
  • Steel Plug O-Ring Boss

    Steel Plug O-Ring Boss, 1-3/16″-12 SAE #14

    SKU: 6500008014 Categories: Aftermarket Hydraulic Cylinder Component Parts & Accessories, Hydraulic Cylinder Accessories, Steel Plug O-Ring Boss
    Call For Availabilty
  • Steel Plug O-Ring Boss

    Steel Plug O-Ring Boss, 1-1/16″-12 SAE #12

    SKU: 6500008012 Categories: Aftermarket Hydraulic Cylinder Component Parts & Accessories, Hydraulic Cylinder Accessories, Steel Plug O-Ring Boss
    Call For Availabilty
  • Steel Plug O-Ring Boss

    Steel Plug O-Ring Boss, 7/8″-14 SAE #10

    SKU: 6500008010 Categories: Aftermarket Hydraulic Cylinder Component Parts & Accessories, Hydraulic Cylinder Accessories, Steel Plug O-Ring Boss
    Call For Availabilty
  • Steel Plug O-Ring Boss

    Steel Plug O-Ring Boss, 3/4″-16 SAE #8

    SKU: 6500008008 Categories: Aftermarket Hydraulic Cylinder Component Parts & Accessories, Hydraulic Cylinder Accessories, Steel Plug O-Ring Boss
    Call For Availabilty
  • Steel Plug O-Ring BossFast Ship Hydraulic Cylinders Inc.

    Steel Plug O-Ring Boss, 9/16″-18 SAE #6

    SKU: 6500008006 Categories: Aftermarket Hydraulic Cylinder Component Parts & Accessories, Hydraulic Cylinder Accessories, Steel Plug O-Ring Boss
    $8.00
    In Stock
  • Steel Plug O-Ring Boss

    Steel Plug O-Ring Boss, 7/16″-20 SAE #4

    SKU: 6500008004 Categories: Aftermarket Hydraulic Cylinder Component Parts & Accessories, Hydraulic Cylinder Accessories, Steel Plug O-Ring Boss
    Call For Availabilty
  • Steel Plug O-Ring BossFast Ship Hydraulic Cylinders Inc.

    Steel Plug O-Ring Boss

    Categories: Aftermarket Hydraulic Cylinder Component Parts & Accessories, Hydraulic Cylinder Accessories, Steel Plug O-Ring Boss
    $8.00
    In Stock
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