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Cat Excavator Muffler

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Cat Excavator Muffler parts list
Image Fits Model Description Part # Price Product Details
Caterpillar Excavator 311B, 312B, 312BL, E311B, E312B, E311, E312, 3064, S4KT Muffler -- 5I7935 See Details 311B, 312B, 312BL, E311B, E312B, E311, E312, 3064, S4KT Muffler 5I7935
$165.00
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Caterpillar Hydraulic 311, 312, E120B Excavator Muffler -- 5I7914 See Details 311, 312, E120B Muffler 5I7914
$147.00
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Replacement exhaust mufflers for Caterpillar compact and mid-size excavators, covering direct-fit units for the 311, 312, and E-series machines running the 3064 and S4KT engines across multiple build generations.

Fits Models At A Glance

  • 311 Series: 311, 311B, E311, E311B
  • 312 Series: 312, 312B, 312BL, E312, E312B, E120B
  • Engine References: 3064, S4KT

Key Notes

  • Application: Direct-replacement exhaust mufflers for Caterpillar compact excavators
  • Part Coverage: Two OEM-reference part numbers covering early and B-series variants
  • Engine Fitment: Designed around 3064 and S4KT engine configurations common to this excavator range
  • Compatibility: Covers both standard and long-undercarriage (L) excavator builds where applicable

Why Choose Broken Tractor

  • ✅ Excavator-specific parts sourced for accurate fitment
  • ✅ Knowledgeable staff ready to confirm part compatibility
  • ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH
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Product: Category: Cat Excavator Muffler Brand: Head Title: Cat Excavator Mufflers 311 312 E120B | Broken Tractor