In StockMuffler Silencer 6743-11-5721 for Komatsu Excavator PC300-7 PC350-7 PC350LC-7 PC300LC-7 PC300LC-7L PC300HD-7L PC300LL-7L
For Pc300-7Muffler

Muffler 6743-11-5721 for Pc300-7

OEM / REF: 6743-11-5721SKU: pilotpart236942-01

Muffler Silencer 6743-11-5721 for Komatsu Excavator PC300-7 PC350-7 PC350LC-7 PC300LC-7 PC300LC-7L PC300HD-7L PC300LL-7L is a Muffler replacement part indexed for Part Number and PC300-7 PC350-7 PC350LC-7 PC300LC-7 PC300LC-7L PC300HD-7L PC300LL-7L Specification: Diameter Body: 305mm Height of Body: 650mm Diameter of...

Stock
In stock
Condition
New
Fitment
Pc300-7 Engine Spare Parts
Category
Muffler
  • Fitment support before you order
  • Worldwide delivery options

Muffler Description

This Muffler is indexed for Part Number; PC300-7 PC350-7 PC350LC-7 PC300LC-7 PC300LC-7L PC300HD-7L PC300LL-7L Specification: Diameter Body: 305mm Height of Body: 650mm Diameter of Inlet Pipe: 105mm Diameter of Outlet Pipe: 100mm See Details: SAA6D114E-2A-A S/N 26800003-UP PC300-7 S/N 40001-UP (Rops Cab / Forestry Spec. (For KAL)), PC350-7 S/N 20001-UP (Overseas Version), PC300-7 S/N 40001-UP (Overseas Version), PC350LC-7 S/N 20001-UP (Overseas Version), PC300LC-7 S/N 40001-UP (Overseas Version) PC300LC-7L S/N A85001-UP PC300HD-7L S/N A85001-UP SAA6D114E-2 S/N .-UP PC300LL-7L S/N A85001-UP. Compare reference number 6743-11-5721 against the label on your existing Pc300-7 component before ordering.

Before checkout, compare OEM part number 6743-11-5721, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.

Applications

  • Part Number
  • PC300-7 PC350-7 PC350LC-7 PC300LC-7 PC300LC-7L PC300HD-7L PC300LL-7L Specification: Diameter Body: 305mm Height of Body: 650mm Diameter of Inlet Pipe: 105mm Diameter of Outlet Pipe: 100mm See Details: SAA6D114E-2A-A S/N 26800003-UP PC300-7 S/N 40001-UP (Rops Cab / Forestry Spec. (For KAL)), PC350-7 S/N 20001-UP (Overseas Version), PC300-7 S/N 40001-UP (Overseas Version), PC350LC-7 S/N 20001-UP (Overseas Version), PC300LC-7 S/N 40001-UP (Overseas Version) PC300LC-7L S/N A85001-UP PC300HD-7L S/N A85001-UP SAA6D114E-2 S/N .-UP PC300LL-7L S/N A85001-UP

Specifications

Part Number6743-11-5721,6743115721

Fitment Notes

Brand or application signal
Pc300-7 Engine Spare Parts
Product family
Muffler
System category
Engine Spare Parts > Emission & Exhaust System > Muffler
Recommended verification
OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability
InStock
Shipping
Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns
Returns are easier when fitment is confirmed before ordering.
B2B support
Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.

Confirm fitment & quote details

Send machine details and nameplate photos before ordering high-risk or quote-only parts.