Is part 17A-54-46120 EN 45545-2 certified?

Yes, HAMM Mount manufactures part 17A-54-46120 to EN 45545-2 fire safety standards, meeting HL2 and HL3 hazard level requirements for railway applications.

17A-54-46120 - Komatsu Bulldozer Cab Cushion | HAMM Mount | OEM Replacement

Name: Komatsu Bulldozer Cab Cushion Part 17A-54-46120
Brand: HAMM Mount
SKU: 17A-54-46120
Availability: InStock
Rating: 4.8 (156 reviews)

Komatsu Bulldozer Cab Cushion - Part 17A-54-46120

The 17A-54-46120 (also written as 17A5446120) is an OEM-specification cab cushion designed for Komatsu bulldozers including the D155A-6, D155AX-8, D51EX-24, D61EX-23, and D61PX series. This rubber-metal bonded mount features a reinforced steel inner core with an industrial-grade elastomer exterior and a square base with four-bolt mounting pattern. It isolates the operator cabin from chassis vibration, reducing operator fatigue during extended shifts and helping meet OSHA whole-body vibration exposure limits per ISO 2631. Often ordered together with companion part 17A-54-46130 for a complete cabin isolation set. Komatsu has major US manufacturing operations in Chattanooga, Tennessee, making these bulldozers widely used across American construction and mining sites.

Manufactured by HAMM Mount in our ISO 9001:2015 certified facility using advanced vulcanization technology and premium rubber compounds. Every unit undergoes multi-stage quality control including dimensional inspection, hardness verification, and load-deflection testing. Fire safety compliance per EN 45545-2 is verified for all railway applications.

Part 17A-54-46120 | Komatsu Bulldozer Cab Cushion

Cross-Reference Part Numbers

17A5446120

This part may also be listed under the above alternate part numbers. All numbers refer to the same component.

Compatible Equipment & Models

Komatsu D155A-6, D155AX-8, D51EX-24, D61EX-23, D61PX-23, D61PX-24

Technical Specifications

Property	Value	Standard
Part Number	17A-54-46120	OEM Spec
Type	Komatsu Bulldozer Cab Cushion	-
Category	Cab Mounts	-
Dimensions	Square base, four-bolt mounting, reinforced steel inner core	OEM Spec
Cross-Reference	17A5446120	OEM
Hardness	60 ± 5 Shore A	ISO 48-4
Tensile Strength	≥ 18 MPa	ISO 37
Elongation	≥ 350%	ISO 37
Compression Set	≤ 20%	ISO 815-1
Temperature Range	-45°C to +85°C	-
Fire Safety	EN 45545-2 HL2/HL3	Railway
Fatigue Life	> 2.5M cycles	Testing

Applications

Part 17A-54-46120 is used in Komatsu D155A/D61/D51 bulldozer cabin mounting. Compatible models include: Komatsu D155A-6, D155AX-8, D51EX-24, D61EX-23, D61PX-23, D61PX-24.

Railway & Transit: Metro systems, light rail, passenger trains, freight locomotives - primary suspension and bogie component applications
Construction Equipment: Excavators, bulldozers, wheel loaders by Caterpillar, Komatsu, Volvo
Mining & Heavy Industry: Mining trucks, material handling equipment, crushing and screening plants
Automotive: Engine mounts, transmission mounts for heavy trucks and passenger vehicles
Power Generation: Generator set mounting, industrial compressor isolation

Material & Compound

Base Polymer: Natural Rubber (NR) / SBR blend - optimized for vibration damping
Reinforcement: High-strength fabric layers and steel reinforcement plates
Protection: UV stabilizers, antiozonants, antioxidants for extended service life
Fire Safety: EN 45545-2 compliant fire retardant additives
Bonding: Proprietary rubber-to-metal bonding process (> 25 MPa pull-out strength)

Installation & Maintenance

Installation

Clean mounting surfaces - remove all oil, corrosion, and old rubber residue
Verify part number 17A-54-46120 matches equipment specifications
Position component with correct orientation per installation drawings
Install hardware hand-tight, then torque in stages (30%, 60%, 100%) using cross-pattern
Re-check torque after 100 hours of operation

Inspection Schedule

Monthly: Visual check for cracks, tears, contamination
Quarterly: Torque verification, deflection measurement
Annually: Hardness test, comprehensive condition assessment

Quality & Certification

ISO 9001:2015 Quality Management System
EN 45545-2 Fire Safety (HL2 & HL3)
100% incoming material testing
SPC-monitored vulcanization process
Load-deflection testing per batch
Full traceability documentation available

Request Quote for Part 17A-54-46120

Factory-direct pricing from HAMM Mount. Ships to USA, Canada & worldwide.

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Frequently Asked Questions

What is part 17A-54-46120?

Do you ship to the United States?

Yes, HAMM Mount ships to all 50 US states. Standard delivery is 7-10 business days via DHL or FedEx with full tracking and insurance. Express 3-5 day service is available for urgent orders.

What warranty is included?

Part 17A-54-46120 carries a 24-month warranty against defects in materials and workmanship under normal operating conditions.

Can I get custom modifications?

Yes, HAMM Mount offers custom modifications including dimensional changes, alternative rubber compounds, special hardness grades, and additional certifications. Contact our engineering team.

HAMM MOUNT

Part 17A-54-46120