87K Intensifier Low-pressure Seal Kit

OEM kit for the oil side of HyperJet/87K intensifiers. Replaces the low pressure seals that keep the hydraulic section tight, restoring crisp stroke reversals and preventing oil bypass into the water end. Use it at scheduled service or at the first signs of slow shifts or seepage to keep the intensifier running smooth.

Components included in this kit:

• Hydraulic Valve Rebuild Kit x1 (A-20257-1) — refreshes hydraulic valve wear components during intensifier service.
• 70 Durometer Black Nitrile Rubber O-ring x2 (A-0275-130) — provides Buna-N sealing support for low-pressure hydraulic interfaces.
• Hytrel Back-up Ring Dash 248 x2 (A-00437-248) — helps support seals and reduce extrusion under pressure cycling.
• N3000 Nitrile Back-up Ring x2 (A-0276-012) — supports the matching seal stack in low-pressure intensifier service.
• 70 Durometer Black Nitrile Rubber O-ring x2 (A-0275-013) — replaces a common Buna-N sealing element used in pump assemblies.
• 70 Durometer Black Nitrile Rubber O-ring x2 (A-0275-248) — used where a larger Buna-N O-ring is required for hydraulic sealing.
• 70 Durometer Black Nitrile Rubber O-ring x4 (A-0275-211) — supports low-pressure sealing during intensifier rebuild work.
• Intensifier Rod Seal x2 (A-11275) — seals around the intensifier rod to help control hydraulic leakage.
• 70 Durometer Black Nitrile Rubber O-ring x6 (A-0275-012) — replaces a small Buna-N sealing component in the low-pressure seal package.
• Poly Pak Seal x2 (201446-219-1) — helps maintain hydraulic sealing performance in the low-pressure section.
• 90 Durometer Nitrile O-ring x2 (A-00633-023) — provides a harder nitrile seal for high-load static sealing locations.
• T-Seal x2 (A-00251-18) — hydraulic sealing element used in the low-pressure intensifier seal package.
• 70 Durometer Black Nitrile Rubber O-ring x2 (A-0275-219) — supports Buna-N sealing replacement during low-pressure intensifier service.

Other related Products:

• 87K Intensifier High-pressure Seal Maintenance Kit (012036-1) — refreshes the water-side rod-pack seals for leak-free 87 K operation. 
• 87K Intensifier Check Valve Inlet Replacement Kit (014884-1) — restores inlet check-valve sealing and response.
• 87K Intensifier Check Valve Outlet Side Maintenance Kit (014885-1) — new outlet poppets, seats, and springs.
• 87K HyperJet® Intensifier Seal Carrier Cartridge (040015-1) — drop-in carrier that houses the HP seals.
• 87k Flow OEM HyperJet® Intensifier Assy (020070-1) — complete intensifier assembly.