How do I confirm pilotpart773523-8559147679992 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

Muffler Silencer 4284449 for Isuzu Engine 6SD1 Hitachi Excavator EX300-3 EX300LC-3 EX300H-3 EX300LCH-3 EX300-2 EX300LC-2 EX300H-2 EX300LCH-2

For Hitachi Muffler

Muffler EX300LC-3 for Hitachi

Q: What part numbers are associated with this Muffler?

EX300LC-3, EX300H-3, EX300LCH-3, EX300-2, EX300LC-2, EX300H-2, EX300LCH-2, 4284449

OEM / REF: EX300LC-3SKU: pilotpart773523-8559147679992

Muffler Silencer 4284449 for Isuzu Engine 6SD1 Hitachi Excavator EX300-3 EX300LC-3 EX300H-3 EX300LCH-3 EX300-2 EX300LC-2 EX300H-2 EX300LCH-2 is a Muffler replacement part for Hitachi Engine Spare Parts, categorized under Engine Spare Parts > Muffler. Use OEM part number EX300LC-3 and confirm machine model, engine mo...

Stock: In stock
Condition: New
Fitment: Hitachi Engine Spare Parts
Category: Muffler

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$244.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Sep 22 – Sep 29
10	Sep 20 – Sep 27
50	Sep 18 – Sep 25

Estimates from today; confirm exact lead time before payment.

Quantity

Buy online now or add to your quote list for bulk pricing and fitment confirmation.

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Muffler Description

Hitachi Muffler buyers can use EX300LC-3 to cross-check shape, connector style, and mounting position against the component being replaced.

Additional cross references on file: EX300H-3, EX300LCH-3, EX300-2. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

EX300LC-3 EX300H-3 EX300LCH-3 EX300-2 EX300LC-2 EX300H-2 EX300LCH-2 4284449

Fitment Notes

Brand or application signal: Hitachi 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.