209-939-5170-40 Weld-On Bucket Lip Shroud for Selected Komatsu PC400/PC450 Buckets

Full Description

The 209-939-5170-40 is an aftermarket weld-on bucket lip shroud, also commonly described as an inter-tooth protector or bucket edge protector. The base reference 209-939-5170 appears in Komatsu parts information as a shroud and is identified in machine parts books as a welded component within selected heavy-duty bucket assemblies.

This type of wear component is positioned on the bucket lip or base edge, normally in the spaces between welded tooth adapters. Its purpose is to provide a replaceable wear surface in an area exposed to abrasive material flow and direct contact during digging, loading and material handling. The product should not be confused with a bucket tooth, tooth adapter, side cutter or bolt-on heel guard.

Parts-book references place the base number 209-939-5170 in selected bucket arrangements for machines including the Komatsu PC400LC-7, PC400-7EO and PC450LC-8. Compatibility remains dependent on the specific bucket assembly, bucket width, capacity, edge profile, serial-number range and adapter layout. A machine model alone is therefore not sufficient for final fitment confirmation.

The suffix “-40” is used in aftermarket wear-parts catalogs and is commonly associated with an opening or open distance of approximately 40 mm. Because the Komatsu references reviewed identify only the base number, buyers should confirm the actual opening, width, profile and mating edge thickness before placing an order. The raised part number on the product should also be compared with the old component or purchasing record.

The supplied image shows a yellow-coated wear component with a broad rectangular lower section, a narrower upper section and a central stepped circular opening. Raised characters reading “209-939-5170-40” are visible on the front surface. No Komatsu logo is visible on the component.

Material grade, hardness, heat-treatment method, coating specification and dimensional tolerances must be confirmed according to the quotation or agreed technical documents. This replacement part is intended for B2B purchasing by construction-equipment distributors, importers, mining operations, bucket repair workshops and earthmoving contractors.

For compatibility checking, please provide the required part number, machine model, serial number, bucket arrangement number and photographs of the existing part and complete bucket lip. Opening distance, edge thickness, overall width and relevant hole dimensions should be measured whenever possible.

Key Features

• Aftermarket replacement referenced to base part number 209-939-5170

• Weld-on bucket lip protection component

• Intended for application between bucket tooth adapters

• Raised 209-939-5170-40 identification

• “-40” version commonly cataloged for a 40 mm opening

• Yellow-coated surface appearance

• Suitable for replacement and bucket-rebuild procurement

• Compatibility checking based on machine, bucket and dimensional information

Compatible Machine Models

The base reference number 209-939-5170 is listed for selected bucket arrangements associated with:

• Komatsu PC400LC-7

• Komatsu PC400-7EO

• Komatsu PC450LC-8

Compatibility is dependent on the bucket assembly, serial-number range, edge profile and adapter layout. Please confirm fitment before ordering.

Reference Part Numbers

• 209-939-5170 — base Komatsu reference number

• 2099395170 — compact database format

• 209-939-5170-40 — aftermarket size/version marking

No other fully interchangeable part number has been confirmed.

Applications

• Excavator bucket lip wear protection

• Protection between bucket tooth adapters

• Bucket repair and wear-part replacement

• Mining and quarry equipment maintenance

• Construction and earthmoving equipment maintenance

• Distributor and importer replacement-parts inventory