233-2622 Hydraulic Swing Cylinder Seal Kit 2332622 for Caterpillar Excavator Backhoe Loader E180 446B 525B 950F 416D 416E 420D

Short Description:

233-2622 Hydraulic Cylinder Seal Kit for Caterpillar 320D/323D Excavators & IT38G Compactors – OEM-Certified Full Seal Repair Set ​​Product Overview​​ The ​​233-2622 Seal Kit​​ is an OEM-authoriz


  • Application: Backhoe Loader, Excavators
  • Part number: 233-2622, 2332622
  • Sizes: Standard or Custom
  • Compatible Model: E180 446B 525B 950F 416D 416E 420D
  • Price: Negotiable
  • Payment Terms: L/C, T/T, Paypal, Western Union, Bank Transfer and more
  • Packaging: PP Bag Inside,Carton Box Outside or Custom
  • Material: Standard or customized

Product Detail

Product Tags

233-2622 Hydraulic Cylinder Seal Kit for Caterpillar 320D/323D Excavators & IT38G Compactors – OEM-Certified Full Seal Repair Set

​​Product Overview​​
The ​​233-2622 Seal Kit​​ is an OEM-authorized hydraulic cylinder repair solution designed for Caterpillar® 320D/320D L/323D excavators (bucket/boom cylinders) and IT38G integrated compactors. This kit ensures leak-free performance in high-pressure hydraulic systems, restoring original equipment specifications for sealing, durability, and contamination resistance.

​​Technical Specifications​​

Parameter Specification
​​Compatible Models​​ Cat 320D, 320D L, 323D Excavators; IT38G Compactors
​​Application​​ Hydraulic Cylinder Piston/Rod Seals, Dust Wipers, and Wear Rings
​​Pressure Range​​ 0–45 MPa (6,526 PSI) – Matches Cat hydraulic cylinder operating standards
​​Temperature Tolerance​​ -40°C to +110°C (-40°F to +230°F)
​​Primary Seal Material​​ Polyurethane (PU) – High abrasion and extrusion resistance
​​Secondary Seals​​ Fluorocarbon (FKM) Buffer Seals, NBR O-Rings, PTFE Wear Rings
​​Certifications​​ ISO 6194, ASTM D2000, Caterpillar® 1U-9901 Quality Compliance

​​Kit Components & Functions​​

Component Function
​Piston Seal (PU)​​ Dual-acting primary seal for hydraulic pressure retention (45 MPa rated).
Rod Seal (FKM)​​ Prevents fluid leakage along the piston rod; reshafting-compatible design.
​Dust Wiper (NBR)​​ Blocks external contaminants (dust, mud) from entering the cylinder.
Wear Rings (PTFE)​​ Reinforced PTFE guides piston/rod alignment, reducing metal-to-metal contact.
Buffer Seal (FKM)​​ Secondary pressure support to prevent primary seal extrusion.
O-Rings (NBR/FFKM)​​ Static seals for gland and port connections; FFKM for bio-oil compatibility.
Backup Rings (PU)​​ Reinforces seals under extreme pressure spikes.
Lubrication Rings​​ PTFE-coated rings reduce friction during cylinder retraction/extension.

​​Key Features & Benefits​​
✅ ​​OEM-Identical Design​​: Direct replacement for Cat part numbers 7W-7066, 223-9359.
✅ ​​Extreme Environment Durability​​: PU/FKM seals withstand mining, construction, and cold-climate operations.
✅ ​​Anti-Contamination System​​: Multi-layer wipers and scraper rings protect against abrasive particles.
✅ ​​Bio-Oil Compatibility​​: FFKM O-rings compatible with Cat HYDO Advanced 10 biodegradable hydraulic oil.
✅ ​​Certified Quality​​: Produced under Cat 1U-9901 guidelines for material and dimensional accuracy.

2332622-seal-kit

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