Product Overview — Part 9121591350
The 9121591350 is a precision-manufactured Cab Mounts component. The 9121591350 cab mount is an OEM-specification component for large heavy machinery cab mounting systems. This part number appears across multiple large construction equipment categories where a high-capacity cab mount is required for machines in the 30–100 tonne operating weight class. Large machinery cab mounts must handle the high static weight of reinforced ROPS cab structures plus the significant dynamic amplification factors that occur during rough terrain travel, swing operations, and attachment work. Part 9121591350 is rated for these demanding combined loading conditions. For customers operating BOMAG large compactors alongside other heavy equipment brands, our cross-reference team can compare this part against BOMAG BW 300 series cab mount specifications. See our complete BOMAG cab mount catalog for BW series equivalents. Related large equipment mounts: 4812111046 and 20891908.
Technical Specifications
| Property | Value | Standard |
|---|---|---|
| Part Number | 9121591350 | 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
Large construction equipment cab mounts (30–100 tonne class); heavy excavator and dozer cab systems; large compactor cab isolation.
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 9121591350. 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.