Product Overview — Part 358-0286
The 358-0286 is a precision-manufactured Vibration Dampers component. Part 358-0286 is a Caterpillar heavy equipment vibration isolation mount providing engine or cab isolation on CAT construction machinery. This component uses a bonded rubber-to-metal design providing both load support and multi-directional vibration attenuation suitable for the operating frequency range of CAT diesel engines and hydraulic systems. The mount is engineered to Caterpillar's vibration isolation specification, matching the stiffness and damping characteristics of the original component. Our manufacturing process uses controlled vulcanization temperature and time to achieve consistent rubber properties batch-to-batch. For BOMAG vibration dampers, see our dedicated BOMAG 3115 and 3128 series. Cross-reference verification available for customers transitioning between CAT and BOMAG equipment in mixed fleets. See also CAT cab mount 211-4987 and isolator 227-0172.
Technical Specifications
| Property | Value | Standard |
|---|---|---|
| Part Number | 358-0286 | OEM Specification |
| Hardness | 45–70 Shore A (application specific) | ISO 48-4 / ASTM D2240 |
| Tensile Strength | ≥ 16 MPa | ISO 37 / ASTM D412 |
| Elongation at Break | ≥ 300% | ISO 37 / ASTM D412 |
| Compression Set | ≤ 25% (22h/70°C) | ISO 815-1 / ASTM D395 |
| Temperature Range | −40°C to +90°C | Operational limits |
| Ozone Resistance | No cracking 168h | ISO 1431-1 |
| Fire Safety | EN 45545-2 HL2/HL3 available | EN 45545-2:2013 |
| Fatigue Life | > 1,000,000 cycles | Dynamic fatigue protocol |
Applications
CAT construction equipment engine mounts; Caterpillar cab and chassis vibration isolation; CAT compactor and motor grader applications.
Our technical team can assess suitability for other equipment types. Contact us with the make, model, and serial number for a precise cross-reference confirmation.
Material & Quality Standards
- Base Polymer: Natural Rubber (NR) or NR/SBR blend — excellent resilience and fatigue resistance
- Reinforcing Fillers: High-structure carbon black for controlled stiffness and wear resistance
- Protection Additives: Anti-ozonant wax and chemical antioxidant for extended outdoor service life
- Bonding System: Chemically bonded rubber-to-metal interface exceeding bulk rubber strength
- EN 45545-2 Option: Halogen-free flame retardant meeting smoke toxicity requirements (on request)
Every batch produced under ISO 9001:2015 QMS with full material traceability. Certificate of Conformance and material test reports available upon request.
Installation Guidelines
- Inspect on arrival: Verify part number 358-0286. Check for transit damage — reject any non-conforming component.
- Clean mating surfaces: Remove all rust, old rubber fragments, grease, and paint before installation.
- Align correctly: Follow assembly drawing orientation. Incorrect orientation may cause premature failure.
- Torque fasteners: Use calibrated torque wrench and cross-pattern tightening sequence per OEM specification.
- Post-install check: Inspect for correct seating. Run equipment at low speed to verify no abnormal noise or vibration.