209-54-71182 Komatsu Engine Mount — PC400 & PC450 Large Excavator Platform
OEM-Equivalent • ISO 9001:2015 Certified • Komatsu PC400-7 • In Stock
Product Overview
The 209-54-71182 is a heavy-duty rubber engine mount designed for the Komatsu PC400 and PC450 class large hydraulic excavators. At 40-45 tonnes operating weight, these machines are powered by the SAA6D125E-5 engine producing 300+ HP — generating substantial vibration forces that demand a mount with high static load capacity and effective dynamic isolation.
The PC400/PC450 class operates in quarrying, mass excavation, heavy demolition, and mining applications where aggressive duty cycles and extended operating hours are the norm. The 209-54-71182 mount is formulated for maximum fatigue life under these demanding conditions, using a high-resilience natural rubber compound with enhanced carbon black reinforcement.
This mount works alongside the 208-54-71180 cab mount and other isolation components to provide comprehensive vibration management for the PC400/PC450 platform. For complete overhaul kits, contact us for package pricing.
Technical Specifications
| Property | Specification |
|---|---|
| Part Number | 209-54-71182 |
| OEM Brand | Komatsu |
| Type | Rubber Engine Mount / Anti-Vibration Mount |
| Compatible Equipment | Komatsu PC400-7, PC400-8, PC400LC-8, PC450-7, PC450-8, PC450LC-8 |
| Cross-Reference | 208-54-71180 (cab mount) |
| Material | Natural Rubber (NR) Compound |
| Hardness | 60 ± 5 Shore A (ISO 48-4) |
| Tensile Strength | ≥ 12 MPa (ISO 37) |
| Elongation at Break | ≥ 350% |
| Temperature Range | −40°C to +90°C |
| Compression Set | ≤ 25% (ISO 815-1) |
| Quality | ISO 9001:2015 Certified |
| Availability | In Stock — Ships Worldwide |
Compatible Komatsu Equipment
- Komatsu PC400-7, PC400-8 — 40-tonne class hydraulic excavator
- Komatsu PC400LC-8 — 40-tonne long-carriage variant
- Komatsu PC450-7, PC450-8, PC450LC-8 — 45-tonne heavy excavator
Always verify your machine model and serial number before ordering. Contact us for free cross-reference verification.
Key Features & Benefits
OEM-Equivalent Quality
Manufactured to Komatsu's original engineering specifications with ±0.5 mm dimensional tolerance. Direct bolt-on replacement with no modifications required. Metal components zinc-plated for corrosion resistance.
Extreme Temperature Range
Operational from −40°C to +90°C, covering Arctic mining to tropical construction sites. IPPD/TMQ antioxidant system prevents thermal degradation. Anti-ozonant wax migration protects surface integrity.
Extended Service Life
Engineered for 4,000 to 8,000 operating hours under standard duty cycles. HAF carbon black reinforcement provides exceptional fatigue crack resistance through millions of load cycles.
Global Express Shipping
In stock and ships worldwide in 3–5 business days via DHL, FedEx, or UPS. Full commercial documentation included for seamless customs clearance in all major markets.
Performance Specifications
| Property | Specification | Test Method |
|---|---|---|
| Hardness | 60 ± 5 Shore A | ISO 48-4 |
| Tensile Strength | ≥ 12 MPa | ISO 37 |
| Elongation at Break | ≥ 350% | ISO 37 |
| Compression Set (24h @ 70°C) | ≤ 25% | ISO 815-1 |
| Tear Strength | ≥ 25 kN/m | ISO 34-1 |
| Accelerated Aging (72h @ 100°C) | Hardness change ≤ 8 IRHD | ISO 188 |
| Ozone Resistance (200 pphm, 48h) | No cracks at 20% strain | ISO 1431-1 |
| Operating Temperature | −40°C to +90°C | Continuous |
Maintenance & Expected Lifespan
Under standard operating conditions, the 209-54-71182 has an expected service life of 4,000 to 8,000 operating hours. In severe duty applications (24/7 mining, extreme temperatures, high dust), service life may be reduced. Inspect at every major service interval (2,000 hours) for surface cracking, compression set, oil contamination, and mounting hardware integrity.
Replacement criteria: Replace when surface cracks exceed 2 mm depth, compression set exceeds 30%, rubber shows oil swelling, or the operator reports increased vibration. Always replace all mounts simultaneously for optimal isolation performance.
