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Caterpillar 11K9-21310 Heavy Duty Air Filter - Technical Specifications 1. Core Attributes Parameter Specification OEM Part Number 11K9-21310 (Cross-reference: Donaldson P816668, Fleetguard AF25593) Filter Type Radial Seal Panel Air Filter Efficiency 99.9% @ 5 microns (ISO 5011/SAE J726) Dirt Capacity 600g (Standard Test Dust) Max Airflow 1,200 CFM (34 m3/min) 2. Construction Details Media: 6-layer cellulose/polyester blend with resin coating End Caps: Polyurethane-coated steel (Anti-corrosion) Gasket Material: Nitrile rubber (Temperature range: -40°C to +120°C) Safety Element: Integrated secondary mesh (ISO 4548-12 compliant) 3. Performance Data Pressure Drop: =2.5 kPa (Clean) / =25 kPa (Service Limit) Vibration Resistance: 50Hz @ 15G (MIL-STD-810G) Water Separation: 98% efficiency (SAE J1995) 4. Compatibility Engine Models: Caterpillar C13, C15 (2007-2016) Compatible with Kenworth T680, Peterbilt 389 (With adapter) Replacement Interval: Normal: 500 engine hours Severe (Mining/Dust): 250 hours 5. Certifications & Testing Industry Standards: ISO 5011 (Laboratory Testing) SAE J726 (Performance) ROHS/REACH Compliant Quality Marks: Caterpillar 1E1865 Rebuild Kit Compatibility Donaldson Blue? Efficiency Verification 6. Maintenance Guide ? Inspection Signs: Restricted airflow (Boost pressure drop) Visible media damage (Shine flashlight through media) Dust streaks downstream of filter ?? Installation Notes: Torque: 7-9 N·m (Radial seal) Always replace both primary + safety elements 7. Packaging & Ordering Unit Dimensions: 320mm ? x 210mm H Weight: 3.2 kg MOQ: 5 pieces (Mix OEM numbers accepted) Lead Time: 7 days Why This Filter? ? Proven Compatibility – Direct replacement for Cat? engines ? Extended Service Life – 20% higher dirt capacity than aftermarket equivalents ? Global Compliance – Meets EU Stage V/EPA Tier 4 Final requirements
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