Products & Range Coverage
A&S MACHINERY CO., LTD. delivers an extensive inventory of engine oil coolers, hydraulic oil radiators, and transmission oil coolers to support diverse mining truck, crawler bulldozer, wheel loader, and high-horsepower excavator requirements:
• Machine & Powertrain System Compatibility: Engineered for a broad range of Caterpillar heavy equipment—including heavy-duty engines (e.g., CAT C15, C18, 3406, 3512), off-highway haulers (777, 785), and dozers (D8, D9, D10)—our parts ensure exact dimensional and functional alignment with original factory cooler assemblies, heat-exchange cores, flange interfaces, and sealing gaskets to guarantee a perfect match.
• Complete Oil Coolers & Thermal Components: 1. Engine Oil Coolers & Cores: Plate-fin and shell-and-tube high-efficiency heat exchangers and multi-layered stacked radiator cores; 2. Hydraulic & Transmission Coolers: Independent or integrated oil coolers engineered for high-pressure systems and powershift transmissions to maintain optimal fluid temperatures during heavy workloads; 3. Thermal Management Seals & Lines: Cooler overhaul sealing kits, high-temp O-rings, water pipes, and rigid oil line assemblies.
• OEM & Heavy-Duty Aftermarket: We offer certified original equipment manufacturer Caterpillar oil coolers alongside rigorously tested heavy-duty aftermarket options manufactured with high-thermal-conductivity copper alloys or reinforced aluminum plate-fin structures and verified through high-pressure leak testing, delivering exceptional heat-exchange efficiency and extended fatigue life at a cost-effective price point for global clients.
Supply Chain & Logistics
We maintain a robust operational infrastructure designed to support global machinery thermal management component procurement through direct supply channels, delivering reliable stock availability and rapid dispatch to build trust with international buyers.
• Ready-to-Ship Inventory and Part Verification: We maintain large-volume stock of high-demand CAT mining truck, excavator, and bulldozer oil coolers. Backed by professional technical teams and heavy machinery parts databases, we guarantee precise matching and direct dispatch upon order confirmation to minimize equipment downtime caused by cooling system failures leading to engine overheating and scoring.
• Heavy-Duty Anti-Shock Crating and Packaging: We implement specialized industrial packaging standards for precision plate-fin cooler cores and large-volume cooler assemblies, utilizing internal high-density expanded polyethylene foam suspension fixing, moisture-proof vacuum sealing, custom fumigated solid wood crates or thickened honeycomb master cartons, and steel-banded locking reinforcement to ensure parts withstand transcontinental ocean or air transit without mechanical impact distortion or salt-fog corrosion.
• Consolidated Sourcing: We support overseas clients by consolidating heavy oil coolers into precise bundled shipments alongside major overhaul components, such as engine overhaul kits, water pumps, or turbochargers, maximizing container space utilization and significantly reducing international freight costs.
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 high-dust, high-ambient-temperature quarries and mines, where oil cooler internals suffer from oil carbonization blockages leading to sudden drops in cooling efficiency, and high-pressure pulses cause cooler tube bundles to crack and leak coolant into the oil. We also provide professional engineering upgrades, including anti-coking reinforced heat-exchange cores and high-strength impulse-resistant oil cooler assemblies.
• Cooler Troubleshooting and Maintenance Guidelines: We address common user concerns regarding excessive oil temperatures and oil-coolant mixing by providing professional diagnostic and replacement guidance. This includes instructions on how technicians can determine whether oil-coolant mixing stems from internal core cracking or cylinder liner water seal failures to avoid unnecessary replacements, alongside emphasis on professional lubrication system flushing prior to installing new coolers to remove residual emulsified sludge and metal debris and prevent secondary blockages.
• Expert Technical Support and Safety Guidelines: We provide technical documentation covering Caterpillar engine oil cooler mounting pad flatness inspection standards, correct seal positioning, and bolt torque specifications, preventing secondary leaks caused by improper installation.
Call to Action & User Experience
Optimize your engine thermal management and operating temperature control 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 that support fast product filtering by Caterpillar machine or engine model (such as CAT C15 or 3512 units), cooler application type (such as engine oil coolers, hydraulic oil coolers, and transmission oil coolers), or original equipment manufacturer part numbers to lock onto target products instantly.
• RFQ and Freight Quotation: Access our fast-response interactive channels providing one-click access to oil cooler assembly and heavy wooden crate freight bundled quotations, fulfilling centralized 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 engine and thermal management system experts to assist overseas clients in verifying cooler interface styles and line layouts across different model years and serial numbers, ensuring cross-border procurement runs error-free.

OEM GENUINEIN STOCK
After Cooler 803082314 For XCMG Excavator 235C XE265C
A&SModel: 803082314|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Air Cooler 14506451 VOE14506451 For Volvo Excavator EC330B EC360B EC460B
A&SModel: 14506451, VOE14506451|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Air Cooler 14506552 VOE14506552 For Volvo Excavator EC330B EC360B EC460B
A&SModel: 14506552, VOE14506552|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Air Cooler 419-03-31132 4190331132 For Komatsu Wheel Loader WA320-5L WA320-5 WA320PT-5L
A&SModel: 419-03-31132, 4190331132|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Air Cooler 419-03-48130 4190348130 For Komatsu Wheel Loaders WA320-6 WA320PZ-6
A&SModel: |Brand: A&S
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OEM GENUINEIN STOCK
Air Cooler 569-03-89191 5690389191 For Komatsu Dump Trucks HD605-7E0 HD465-7R
A&SModel: 569-03-89191, 5690389191|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Air Cooler 569-03-89192 5690389192 For Komatsu Dump Trucks HD465-7R HD605-7E0
A&SModel: 569-03-89192, 5690389192|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Air Cooler AH213733 For John Deere Combine 9860STS 9870STS 9880i S690 John Deere Picker Cotton 7660 7760
A&SModel: AH213733|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Air Cooler AN304256 For John Deere Sprayer 4730
A&SModel: AN304256|Brand: A&S
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OEM GENUINEIN STOCK
Air Cooler Ass'y 6223-63-4100 6223634100 For Komatsu Engine SAA6D108E Komatsu Excavator PC300-6Z PC340-6K PC340NLC-6K PC350-6 PC350LC-6Z PC380LC-6K-J
A&SModel: 6223-63-4100, 6223634100|Brand: A&S
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OEM GENUINEIN STOCK
Air Cooler Ass'y 6223-63-4400 6223634400 For Komatsu Excavator PC300-6Z PC340-6K PC340NLC-6K PC350-6 PC350LC-6Z PC380LC-6K-J Komatsu Engine SAA6D108E
A&SModel: 6223-63-4400, 6223634400|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Air Cooler Ass'y 6738-61-4122 6738614122 For Komatsu Excavator PC200-7-AA PC200LL-7L PC210-7-CA PC220-7 PC230LC-7-DG Komatsu Engine SAA6D102E-2G-8
A&SModel: 6738-61-4122, 6738614122|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Air Cooler Ass'y 6738-61-4123 6738614123 For Komatsu Engine SAA6D102E-2G-8 Komatsu Excavator PC200-7-AA PC200LL-7L PC210-7-CA PC220-7 PC230LC-7-DG
A&SModel: 6738-61-4123, 6738614123|Brand: A&S
In Stock - Ships within 24 hours
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OEM GENUINEIN STOCK
Charge Air Cooler 11110366 VOE11110366 For Volvo Wheel Loader L220F L150E L180E L180F L180F HL L150F L220E
A&SModel: 11110366, VOE11110366|Brand: A&S
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OEM GENUINEIN STOCK
Charge Air Cooler 11110377 VOE11110377 For Volvo Wheel Loader L110E L120E L90E
A&SModel: |Brand: A&S
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