7197632 Boom Cylinder Seal Kit for Bobcat Excavator 331 334 430 E27 E32 E32i E34 E35 E35i
7197632 Boom Cylinder Seal Kit Certified Compatibility
7197632 Boom Cylinder Seal Kit – Factory Replacement for Bobcat 331/334/430 & E27/E32i/E35i
- Classic Series: 331, 334, 430
- E-Series: E27, E32, E32i, E34, E35, E35i
- Cylinder Casting ID: Requires “B7.3V” or “BC-HV55” markings
- Exclusions: E45+ models (use 7197703) │ Pre-2018 331G with “B7.2” castings
7197632 Seal Kit Technical Specifications
| Bore/Rod Diameter | Ø92mm / Ø55mm |
| Max Pressure | 36 MPa (5,220 PSI) │ 52 MPa peak (hammer mode) |
| Temperature Range | -35°C to +130°C (-31°F to 266°F) |
| Primary Seal System | 5-Layer HNBR95 Matrix |
| Rod Seal | Double-Lip + MicroSpring™ Tech |
| Wear Band | Carbon-Graphite PTFE (0.03mm runout) |
| Buffer Protection | Asymmetric PEEK Wedge Rings |
Seal Kit Contents
| Ultra-High Pressure Piston Seal | 52MPa burst resistance |
| Thermal-Compensating Rod Seal | Auto-adjusts for rod expansion |
| Zero-Friction Guide Band | Vapor-deposited MoS₂ coating |
| Impact-Absorbing Buffer Rings | Shatter-proof PEEK blend |
| Kevlar-Reinforced Wiper | 3-stage debris ejection |
| Anti-Walk Wear Rings | Prevents gland misalignment |
| Extreme-Temp O-Rings (FKM) | +130°C continuous rating |
| Assembly Grease Capsule | Lithium-complex (Bobcat P/N 6720441) |
| Bore Protector Sleeve | Prevents chamfer damage during install |
Performance Validation
✅ Hammer Duty Certification: Zero leakage after 1 million impact cycles (Bobcat TP-IMP-78 testing)
✅ Arctic Performance: Maintains seal flexibility at -35°C (Siberian field-proven)
✅ Contamination Resistance: 99.7% particle exclusion >10μm (ISO 21009 Class 7)
✅ Oil Film Retention: Patented micro-grooves retain hydraulic film 4x longer
Frequently Asked Questions (FAQ)
Q: Do you have any other excavator model repair seal kits ?
A: Yes. As the professional excavator seal kits manufacturer, we produce all the excavators repair seal kits, standard sizes and also support customization. Please tell us the part number seal kit you want.
Q: I can’t find the model I want. Are all your seal repair kits here?
A: No. We have more than tens of thousands seal kits. Here only a small part of them is shown. We have stock of all the seal kits for construction machinery. Please contact us!
Contact Us
For more information or to request a quote, please contact us or email [email protected].
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