Filters/Oil Filters

Products & Range Coverage
A&S MACHINERY CO., LTD. delivers an extensive inventory of specialized oil filters within our Filters catalog to support diverse heavy-duty equipment:
• Machine & Engine Series Compatibility: Engineered for a broad range of Komatsu heavy-duty engines, our parts ensure exact thread profiles, seal thresholds, and valve cracking pressures for a 100% perfect match, lossless alignment, and factory-grade lubrication performance.
• Complete Lube Oil Filtration Range: 1. Heavy-Duty Spin-On Lube Filters: Manufactured with multi-layer synthetic glass fiber gradient filter media to ensure continuous and efficient capture of metal wear debris, carbon deposits, and gummy contaminants; 2. Dual & Bypass Oil Filter Elements: Designed to satisfy deep purification demands of high-horsepower mining-grade Komatsu engines through rigorous two-stage filtration; 3. Anti-Drain Back & Bypass Valve Assemblies: Engineered to prevent oil backflow after engine shutdown, ensure immediate oil pressure buildup during cold starts, and protect turbochargers from dry friction.
• OEM & Heavy-Duty Aftermarket: We offer certified original equipment manufacturer Komatsu oil filter assemblies alongside rigorous bench-tested aftermarket parts, delivering exceptional reliability and extended service lifespan at a cost-effective procurement point for global clients.

Supply Chain & Logistics
We maintain a robust operational infrastructure designed to support global oil filter procurement through direct supply channels, delivering reliable stock availability and rapid dispatch to build trust with international equipment owners and repair facilities.
• Massive Inventory and Cross-Reference: We maintain large-volume stock of hundreds of differing specifications of Komatsu mainstream heavy-duty excavator, loader, and bulldozer oil filters. Backed by barcode-enabled intelligent warehousing and Komatsu parts databases, we guarantee precise matching and immediate dispatch upon order confirmation to minimize jobsite downtime caused by oil filter clogging alarms and inadequate lubrication.
• Moisture-Proofing and Crated Protection: We implement specialized industrial packaging standards for oil filters featuring precision folded synthetic filter paper internally alongside strong steel shells and high-temperature rubber O-ring seals externally that are vulnerable to heavy transit pressure indentation, moisture deformation, or rough handling causing housing crushing, internal paper core fracture, or seal vulcanization aging, utilizing independent polyethylene moisture-proof sealed wrapping combined with high-strength individual corrugated cardboard rigid supports to completely isolate marine salt spray and humid air and prevent shell dents and fluid leaks, and backing these with thickened heavy-duty export corrugated outer cartons or fumigated solid wood packaging to ensure components do not suffer deformation or damage during ocean or air transit.
• Consolidated Sourcing: We support overseas clients by consolidating oil filters alongside matching fuel filters, air filters, hydraulic oil filter elements, and engine-specific lubricating oil into precise bundled shipments, maximizing container space utilization and significantly reducing international freight costs for overseas machine maintenance 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 for power unit lubrication assets.
• Application-Specific Durability Solutions: We address common field issues in extreme jobsite environments, such as heavy-duty open-pit iron ore mines and prolonged continuous high-load operations where standard factory oil filters experience rapid dirt-holding capacity saturation under high temperatures, causing bypass valves to open prematurely and un filtered dirty oil to flow directly into main journal bearings, resulting in early wear. We also provide professional engineering upgrades, including ultra-high dirt-holding capacity and high-pressure pulse-reinforced heavy-duty synthetic fiber oil filters.
• Troubleshooting and Maintenance Guidelines: We address common user concerns regarding Komatsu excavator instrument cluster oil pressure alarms, cold-start engine abnormal noises, and heavy metallic particle accumulation on old filter surfaces by providing professional diagnostic and replacement guidance. This includes emphasizing the mandatory execution of a 250-hour service interval and pre-lube protocol to replace filters simultaneously with engine oil, applying a thin film of clean oil to rubber seals before installation while strictly prohibiting dry tightening, while also offering filter dissection analysis to inspect internal filter paper and capture magnetic metal fragments—where copper alloy flakes indicate bearing wear and steel flakes indicate cylinder liner scoring—to assist overseas fleets in assessing internal engine health.
• Expert Technical Support and Safety Guidelines: We provide technical documentation covering Komatsu oil filter installation torque specifications specifying hand-tightening until seal contact followed by an additional 3/4 to 1 rotation while prohibiting excessive pipe wrench force that causes thread stripping or base cracking, alongside old seal residue inspection guides to assist overseas technical personnel in maintaining standardized installations.

Call to Action & User Experience
Optimize your machinery lubrication reliability and engine health monitoring 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 Komatsu machine model (such as PC200-8, PC360-7, WA380, or D85), engine platforms (such as 6D102, SAA6D107, or SAA6D125), filter types (such as full-flow lube filters, bypass filters, or engine maintenance kits), or original equipment manufacturer part numbers to lock onto target products instantly.
• RFQ and Engine Maintenance Kit Quotation: Access our fast-response interactive channels providing one-click bill of materials uploads for fleet Komatsu machinery engine routine maintenance and filter replacement lists to receive bundled assembly quotations and international logistics freight estimates, fulfilling workshop routine maintenance and large-scale periodic spare parts reserve procurement requirements.
• Consultation and Support: Utilize our around-the-clock professional technical support channels staffed by senior Komatsu machinery engine lubrication and maintenance experts to assist overseas clients in verifying compatibility for legacy non-standard oil filter bases, replacement equivalents, and modification inquiries, ensuring cross-border procurement runs error-free.