Komatsu Dozer Muffler

Komatsu Dozer Muffler parts list
Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	D20A-5, D20A-6, D20P-5, D20P-6, D21A-5, D21A-6, D21P-5, D21P-6	Muffler		0	KOM-D20P5-Muffler	Call for Pricing	View Info
	See Details	D31P-18, D31A-18, D31P-20 (6 Cyl)	Muffler		0	6206-11-5230	$375.00	View Info

Replacement exhaust mufflers for Komatsu crawler dozers, covering D20, D21, and D31 series machines across multiple configurations and variants. These mufflers restore proper exhaust flow and noise suppression for aging or damaged OEM units.

Fits Models At A Glance

D20 Series: D20P-5, D20P-6, D20A-5, D20A-6
D21 Series: D21P-5, D21P-6, D21A-5, D21A-6
D31 Series: D31P-18, D31A-18

Key Notes

Application: Direct exhaust muffler replacement for Komatsu compact to mid-size crawler dozers
OEM Reference: Includes part numbers cross-referenced to Komatsu factory specifications
Variants: Covers both P (power shift) and A (angle blade) configurations within listed series
Condition: New replacement units available for listed model ranges

Why Choose Broken Tractor

✅ Accurate fitment verified across Komatsu dozer generations
✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH
✅ Knowledgeable staff ready to confirm compatibility before ordering

Frequently Asked Questions

What muffler fits a Komatsu D20 or D21 dozer?

Broken Tractor carries one muffler (SKU KOM-D20P5-Muffler) that fits both the Komatsu D20 and D21 series. It covers the D20A-5, D20A-6, D20P-5, D20P-6, D21A-5, D21A-6, D21P-5 and D21P-6 dozers. Because a single muffler covers both series, owners of these machines do not need to track down separate versions.

What is the Komatsu D31 dozer muffler part number?

The muffler for the Komatsu D31P-18, D31A-18 and D31P-20 (6 Cyl) dozers is part number 6206-11-5230. The D31P-20 fitment is listed for the 6 cylinder engine, so check which engine your machine has before ordering. Matching the part number on your current muffler is the easiest way to confirm the right fit.

How do I know which Komatsu dozer exhaust muffler I need?

Start with your dozer's full model designation, including the dash number, such as D21P-6 or D31A-18. Then compare it to the fitment list for each muffler. If your model is close but not an exact match, or the dash number on your machine is unclear, call (800) 909-7060 before ordering so the parts team can confirm compatibility.

Is a replacement Komatsu dozer muffler new or used?

Broken Tractor offers new replacement mufflers for the listed Komatsu D20, D21 and D31 dozer models. They are direct replacements for the factory exhaust muffler. They are made to replace worn or damaged originals on older machines.

Where can I buy Komatsu dozer exhaust parts near me?

Broken Tractor sells Komatsu dozer mufflers online and offers fast shipping from Baton Rouge, LA and Kimbolton, OH. That means you can order the correct muffler for your D20, D21 or D31 dozer without needing a local dealer.