Products & Range Coverage
A&S MACHINERY CO., LTD. delivers an extensive inventory of specialized display units and precision operator terminals to support diverse heavy-duty equipment (e.g., CAT 770/775/777 mining trucks, 336/349 excavators, 980 loaders, and D6/D8 dozers):
• Machine & Protocol Compatibility: Engineered for a broad range of Caterpillar equipment series—covering early segmented LCD clusters up to modern high-resolution full-color touch monitors (such as Messenger screens and Advisor systems)—our parts ensure exact housing dimensions, mounting hole layouts, and multi-pin aviation plugs to guarantee a 100% perfect match for lossless plug-and-play installation.
• Complete Display Units & Terminals: 1. Multi-Function Color Monitors: Industrial-grade wide-temperature, high-brightness, anti-glare LCD panels displaying real-time engine speed, temperatures, fluid pressures, and diagnostic trouble codes (DTCs); 2. Combined Instrument Clusters: Integrated digital and analog display assemblies featuring status indicator light matrices and clear LCD viewing areas; 3. Protective Bezels & Keypads: Scratch-resistant, UV-blocking protective panels and tactile button rubber pads.
• OEM & Heavy-Duty Aftermarket: We offer certified original equipment manufacturer Caterpillar display terminals alongside rigorously tested heavy-duty aftermarket options verified through severe mining temperature and bench vibration tests, delivering exceptional display performance and extended operational lifespan at a cost-effective price point for global clients.
Supply Chain & Logistics
We maintain a robust operational infrastructure designed to support global machinery high-value sensitive glass and electronic terminal procurement through direct supply channels, delivering reliable stock availability and rapid dispatch to build trust with international buyers.
• Massive Inventory and Firmware Verification: We maintain large-volume stock of thousands of differing specifications of CAT mainstream machinery display monitors and monitor assemblies. Backed by barcode-enabled intelligent warehousing and heavy machinery parts databases, we guarantee precise matching and direct dispatch upon order confirmation to minimize equipment downtime caused by display screen blackouts preventing the monitoring of essential oil pressures and water temperatures.
• Suspension Anti-Shock and Moisture-Proof Packaging: We implement specialized industrial packaging standards for display liquid crystal panels vulnerable to impact cracking and delicate circuit boards vulnerable to electrostatic discharge, utilizing thick-wall anti-static shielding bags, high-density bubble column four-corner suspended wrapping, custom high-density pearl cotton molded inner linings, and thickened double-wall master cartons to ensure parts do not suffer screen breakage, electrostatic damage, or structural crushing deformation during transcontinental ocean or air transit.
• Consolidated Sourcing: We support overseas clients by consolidating instrument displays alongside matching engine overhaul kits, hydraulic pumps, joysticks, sensors, and wire harnesses into precise bundled shipments, maximizing container space utilization and significantly reducing international freight costs for overseas repair facilities.
Engineering Solutions & Technical Support
Our technical framework focuses on resolving field-level operational challenges to eliminate equipment downtime, moving beyond simple parts distribution to deliver comprehensive engineering and service capabilities.
• Application-Specific Durability Solutions: We address common field issues in extreme working environments, such as open-pit quarry operations involving severe high-frequency bouncing, intense heat, and high humidity, where standard automotive screens experience thermal blackening from direct sunlight exposure and vibration-induced internal solder joint cracking. We also provide professional engineering upgrades, including wide-temperature anti-thermal liquid crystal panels, reinforced anti-vibration internal mainboard support structures, and IP65 waterproof and dustproof front faceplates.
• Troubleshooting and Maintenance Guidelines: We address common user concerns regarding non-responsive screens, boot freezes, or CAN bus communication faults (such as no-communication errors) by providing professional diagnostic and replacement guidance. This includes comprehensive power and network diagnostics helping technicians use multimeters to check constant power, ignition power, and ground voltages alongside twisted-pair CAN bus terminating resistors to isolate power supply faults from display unit failures. Furthermore, we guide technicians through firmware version verification and configuration matching, ensuring that multi-function monitors undergo proper machine parameter validation or script loading via diagnostic tools to restore correct sensor data readings.
• Expert Technical Support and Safety Guidelines: We provide technical documentation covering Caterpillar instrument cluster disassembly diagrams, waterproof plug anti-corrosion grease application specifications, and display self-test setup guides, assisting overseas technical personnel in maintaining standardized installations.
Call to Action & User Experience
Optimize your operator interface clarity and diagnostic tracking reliability today by utilizing our interactive tools placed across strategic positions on our platform.
• Multi-Dimensional Intelligent Search and Specification Filtering: Benefit from advanced search functions supporting fast product filtering by Caterpillar machine model (such as CAT 777G, 336D, or 980H units), display monitor types (such as Messenger, Advisor, or LCD monitors), or original equipment manufacturer part numbers to lock onto target products instantly.
• RFQ and Bulk Electrical Quotation: Access our fast-response interactive channels providing one-click bill of materials uploads for fleet cabin instrument and display replacement lists to receive bundled assembly quotations and heavy-duty freight estimates, fulfilling heavy refurbishment and major upgrade procurement requirements for overseas mining sites, fleets, and repair shops.
• Consultation and Support: Utilize our around-the-clock professional technical support channels staffed by senior electrical and display system experts to assist overseas clients in verifying compatibility for legacy machine non-standard instrument upgrades or aftermarket replacements, ensuring cross-border procurement runs error-free.

OEM GENUINEIN STOCK
Membrane Switch Assy 21N8-20505 21N820505 for Hyundai Excavator R140LC-7 R160LC-7 R180LC-7 R210LC-7 R210-7H R220LC-7H
A&SModel: 21N8-20505,21N820505,21N8-20504,21N820504,21N8-20503,|Brand: A&S
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OEM GENUINEIN STOCK
Monitor 14636301 VOE14636301 VOE 14636301 for Volvo Excavator EC210B EC140B EC160B EC360BLC
A&SModel: 14636301, VOE14636301, VOE 14636301|Brand: A&S
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OEM GENUINEIN STOCK
Monitor 151-9385 1519385 for Caterpillar Excavator CAT 311B 312B 318B 320B 321B 325B 345B M325B W330B W345B II
A&SModel: 151-9385,1519385|Brand: A&S
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OEM GENUINEIN STOCK
Monitor 157-3198 1573198 for Caterpillar Excavator CAT 312C 315C 318C 319C 320C 321C 322C 325C 330C
A&SModel: 157-3198,1573198|Brand: A&S
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OEM GENUINEIN STOCK
Monitor 260-2160 2602160 for Caterpillar Excavator CAT 312C 315C 318C 320C 325C 330C
A&SModel: 260-2160,2602160|Brand: A&S
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OEM GENUINEIN STOCK
Monitor 7823309214 7823-30-9214 For Komatsu WA470-6 WA480-6 WA430-6 WA380-6
A&SModel: 7823309214, 7823-30-9214|Brand: A&S
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OEM GENUINEIN STOCK
Monitor 7835-34-1002 7835341002 for Komatsu Excavator PC200-8M0 PC200LC-8M0 PC220-8M0 PC220LC-8M0
A&SModel: 7835-34-1002,7835341002|Brand: A&S
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OEM GENUINEIN STOCK
Monitor 7835-34-1002 7835341002 for Komatsu Excavator PC300-8M0 PC300LC-8M0 PC350-8M0 PC350LC-8M0
A&SModel: 7835-34-1002,7835341002|Brand: A&S
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OEM GENUINEIN STOCK
Monitor 7835145002 7835-14-5002 For Komatsu Excavator PW140 PW160 PW180 PW200 PW220
A&SModel: |Brand: A&S
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OEM GENUINEIN STOCK
Monitor Ass'y 207-06-X3110 20706X3110 for Komatsu Excavator PC300 PC300-5 PC300LC PC300LC-5
A&SModel: 207-06-X3110,7824-72-6100,7824-72-3100,|Brand: A&S
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OEM GENUINEIN STOCK
Monitor Ass'y 4273796 for Hitachi Excavator EX100-2 EX100-3 EX220-2 EX220-3 EX300-2 EX400-3 EX550 EX600H-3
A&SModel: 4652262|Brand: A&S
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OEM GENUINEIN STOCK
Monitor Ass'y 4362249 for Hitachi Excavator EX60-5 EX60LC-5 EX60BUN-5 EX70LCK-5
A&SModel: 4362249|Brand: A&S
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OEM GENUINEIN STOCK
Monitor Ass'y 4411757 for Hitachi Excavator EX120-5 EX200-5 EX220-5 EX230-5
A&SModel: 4411757|Brand: A&S
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OEM GENUINEIN STOCK
Monitor Ass'y 4482981 4488901 for Hitachi Excavator ZX110 ZX120 ZX125US ZX130H ZX135US ZX200 ZX225US ZX225USR
A&SModel: 4482981448890|Brand: A&S
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OEM GENUINEIN STOCK
Monitor Ass'y 4488903 for Hitachi Excavator IZX200 ZX110 ZX120 ZX125US ZX135US ZX160 ZX200 ZX200-3G
A&SModel: 4488903|Brand: A&S
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