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Reliable Aftermarket Komatsu Mufflers
Your Komatsu excavator is built for power — but when the muffler corrodes, leaks, or loses its internal baffles, performance and safety quickly decline. Our premium aftermarket Komatsu mufflers (silencers) are engineered to restore engine efficiency, exhaust flow, and job‑site noise control — with OEM‑level fit and rugged durability for the toughest conditions.
Constructed from heavy‑gauge steel and corrosion‑resistant coatings, every muffler ensures long service life and stable performance under constant vibration and heat.
When to Replace Your Komatsu Muffler
A worn‑out muffler is more than noisy — it can shorten engine life and cause power loss. Replace your Komatsu muffler if you notice:
- Loud or Irregular Exhaust Noise: Possible cracked welds or failed internal baffles.
- Reduced Power or Rising Fuel Use: Bad backpressure management impacts combustion.
- Visible Rust, Cracks, or Holes: Weak spots allow exhaust gases to escape.
- Black Soot Trails or Fume Odor: Exhaust leakage at pipe joints or weld points.
Timely replacement keeps your excavator running quietly, efficiently, and compliant with environmental and workplace standards.
Quick‑Reference Compatibility Guide
| Part Number | Application | Compatible Komatsu Models | Compatible Engine Model(s) |
| 6754-11-5340 | Mid-Size Excavator Muffler | PC200-8, PC210-8, PC228US-8 | SAA6D107E-1 |
| 6735-11-5530 | Mid-Size Excavator Muffler | PC200-6, PC210-6, PC220-6 | S6D102E, SA6D102E |
| 6251-11-5440 | Large Excavator Muffler | PC400-8, PC450-8 | SAA6D125E-5 |
| 6152-12-5720 | Large Excavator Muffler | PC300-6, PC350-6 | SA6D114E |
(Tip: Use engine code and outlet orientation to confirm proper fit before ordering.)
Shop with Confidence
Our curated line of Komatsu aftermarket mufflers ensures quality, fit, and durability — all tested to OEM standards.
Each unit goes through:
- Fitment verification for Komatsu PC‑Series excavators
- High‑temperature weld integrity & corrosion protection
- Backpressure & flow testing for engine longevity
- Fast global shipping to minimize downtime
Supported Models: PC25 – PC550 Series | Engines: 3D84 – SAA6D125E | Applications: Excavators / Utility / Heavy Earthmovers
Upgrade your Komatsu today with a Direct‑Fit Aftermarket Muffler engineered for quiet, efficient, and powerful operation in any environment.
At a Glance
- Direct‑fit replacements — 100% compatible with OEM dimensions.
- Optimized exhaust flow for improved engine performance.
- Heavy‑duty anti‑rust construction for a long lifespan.
- Hundreds of SKUs stocked — from PC30 mini‑excavators to PC550 giants.
- Worldwide fast shipping & dedicated support.