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Premium Excavator Muffler
An excavator muffler (or silencer) is a critical component of the exhaust system. Its primary jobs are:
- Noise Reduction: Significantly quiets the loud noise produced by the engine.
- Engine Performance: Creates the right amount of backpressure for optimal engine efficiency and power.
- Safe Exhaust Routing: Ensures exhaust fumes are directed safely away from the operator and machine components.
A damaged or rusted muffler can lead to excessive noise, loss of power, and potential safety hazards.
Excavator Mufflers by Brand
Use this guide to find a compatible muffler for your machine quickly. Check your excavator's brand and model to see a list of compatible parts.
| Brand | Compatible Excavator Models | Compatible Engine Models | Example Part Numbers |
| Caterpillar (CAT) | 320, 320B/L/N, 322B/C, 325/B/C/L, 330/B/C/D/L, 336D, 345C, 349D, 350, E70/B, E110B, E120B, E200B, E307, E311, E312, E325, etc. | 3064, 3066, 3116, 3126B, 3306, C4.2, C7, C9, C13, S4K-T, S6KT, 4M40, 4D32 | 272-4674, 5I-8007, 109-9323, 205-6642, 6I-6425, 239-6580, 212-8491, 7Y-1508, 5I-7914, 190-5781 |
| Komatsu | PC60-7, PC75UU-3, PC100-6, PC120-5, PC130-7, PC200-5/6/8, PC220-6/8, PC300-6/7/8, PC400-5/6/7/8, PC450-6, etc. | 3D84, 4D84, 4D88, 4D95, 4D102, S6D95, S6D102, SAA6D107E, S6D125, SA6D125E, SAA6D114E, SAA6D125E | 6735-11-5530, 6209-11-5231, 6209-11-5210, 6137-11-5550, 6731-11-5511, 6205-11-5220, YM129136-13510, 6754-11-5340 |
| Hitachi | EX60, EX100, EX120-5, EX200-2/5, EX220-3, EX300-3, EX400, EX450, ZX55, ZX70, ZX120, ZX135, ZX200-3, ZX210, ZX240-3, ZX330-3, ZX450-3, ZX470H-3, etc. | 4BD1, 4BG1, 4JG1, 4LE2, 6BD1, 6BG1, 6HK1, 6RB1, 6SD1, 6WG1, H06CT, H07CT, FD33 | 4625214, 4445483, 4638628, 4448415, 4653851, 4332247, 4416602, 4448024, 4205649, 4284449 |
| Volvo | EC55B, EC140B, EC160B, EC180B, EC210/B, EC240B, EC290B, EC330B, EC360B, EC460B, EW145B, EW170, etc. | D6D, D7D, D12D, Yanmar | SA1114-00432, SA1114-30051, SA1114-00350, VOE14539535, VOE14504919, VOE14541655 |
| Kobelco | SK60, SK100, SK120, SK200-6/8, SK210LC-8, SK220, SK250-8, SK260-8, etc. | 4JB1, 4BD1, 6D16, 6D34, J05E | VAME047576, YB12P00002P1, YN12P00029P1, 2427U1139, YN12P00040P1, LE12P00004P3 |
| Hyundai | R55-7, R80-7, R130LC-3, R220-5 | Cummins 6BT5.9 | HFP10030839, 11M8-30051, 11E6-32011 |
| John Deere | 135C, 190DW, 210CW, 225DLC | Isuzu 4HK1, 6BG1, 4BG1 | 4625214, 4416602, 4419850 |
| Other Brands | Doosan/Daewoo: DH55-5, S55-V PLUS Kato: HD450, HD512, HD700, HD820 Sumitomo: SH200, SH200-1, SH200-2, SH200-3 | Varies by model | 203-00045A (Doosan), etc. |
Quick Tips Before Ordering
- Confirm the engine model on the ID plate before purchasing.
- Compare your old muffler’s mounting orientation, size, and outlet diameter.
- For long‑term reliability, choose OEM‑grade or heavy‑duty stainless mufflers—they resist corrosion and vibration fatigue.
Find the Perfect Fit
Explore our full collection of excavator mufflers and exhaust silencers built for the world’s leading heavy equipment brands. All units are direct‑fit replacements engineered to perform and last in demanding job‑site conditions.