Komatsu HD785-7 Engine Gearbox Cover 6219-21-3110 Optimize the structural protection and sealing performance of your heavy-duty hauling fleet with this premium replacement engine gear housing cover. Specifically engineered for the massive Komatsu HD785-7 rigid dump truck platform, the 6219-21-3110 cover seals and protects the complex timing gear train from high-impact quarry vibration, thermal expanding stresses, and external aggregate debris ingress, preventing critical engine oil leaks. https://ckhparts.com/wp-content/uploads/2026/06/6219-21-3110.mp4 Machinery Applications and Fleet Compatibility This heavy-duty timing gear case cover is precision-machined to match the strict factory tolerances and mounting layouts of large-scale mining and transport systems. Compatible Komatsu Dump Truck Models Rigid Off-Highway Haulers: HD785-7, HD785-7R Mining Trucks Extended Heavy Equipment Support: Suitable for equipment lines integrating the Komatsu 140mm bore V12 engine platform. Associated Diesel Engine Systems Engine Model: Komatsu SAA12V140E-3, SAA12V140E-3C, SAA12V140E-3D 30.5L V12 turbocharged diesel engines. Technical Data and Reference Codes To assist global procurement managers and workshop maintenance technicians during full engine overhauls, this structural cover maps directly to key manufacturing part indexes: Technical Parameter Field Product Metric / Reference Layout Details Primary Component Part Number 6219-21-3110 Interchangeable Production Codes 6219213110, 6219-21-3111, 6219213111 System Specific Location Front Engine Timing Gear Train / Gearbox Housing Housing Group Material Composition High-tensile die-cast aluminum alloy or reinforced structural iron Stock Status In stock, factory-direct supply with global logistics supported Related SAA12V140E Engine Maintenance Spares Sustaining absolute oil-tight integrity and timing alignment requires inspecting adjacent gaskets and components during a gear case cover changeout: Seals, Gaskets, and Front Crankshaft Components 6219-21-3910: Front timing gear casing main structural gasket group. 6212-21-4820: High-pressure front crankshaft oil seal assembly. Fuel Injection and Timing Train Elements 6219-11-3100 / 095000-6280: High-efficiency common rail fuel injectors matched to the HD785-7 engine block. Internal Engine Gearing: Idle gears, camshaft gears, and fuel pump drive shaft components. Key Engineering and Technical Advantages Heavy-Duty Die-Cast Metallurgy: Fabricated using premium alloy composites to prevent structural warping, structural fatigue, and microscopic fractures under intense engine block vibrations. Flawless Flush Seal Face: The mounting face undergoes micro-step grinding to ensure flat alignment against the engine cylinder block, eliminating common pressurized oil weeping points. Direct Drop-In Structural Alignment: Machined precisely to original factory bolt hole spacing and dowel pin alignment slots, allowing for a swift, worry-free installation without field layout modifications. Related Part Numbers NO P.N. NAME 1 421-20-24510 Komatsu Transmission Axle Assembly 421-20-24510 for WA420-3 2 5540246 Cummins QSK50 High Pressure Fuel Pump 5540246 5471755 for NTE240 NTE26... 3 102-0783 102-0783 Hydraulic Main Pump for Caterpillar E307 307.5 4 600-185-4100 600-185-4100 Air Filter for Komatsu HD465/605/785/PC1250/PC1800/PC2000 5 708-1G-00060 708-1G-00060 Main Hydraulic Pump for Komatsu WA470-6 Wheel Loader 6 6152-32-2510 Komatsu Piston 6152-32-2510 - WA470-3 PC400-7 S6D125E/SA6D125E Engine 7 14X-27-11123 Komatsu D65-15 Right Final Drive 14X-27-11123 Travel Motor 8 6240-61-4701 Komatsu PC1250-7 Fan Belt Tensioner 6240-61-4701 9 56B-54-14351 Komatsu Regulator 56B-54-14351 for HD465 HD785 Mining Trucks 10 6245-71-1111 Fuel Injection Pump 6245-71-1111 for Komatsu HD785-7 PC1250-8 11 6245-11-1100 Komatsu Cylinder Head 6245-11-1100 for HD465 HD785 Trucks 12 593-3841 Caterpillar 593-3841 Swing Pump Rotary Pump for E395GC Excavator 13 561-87-66102 Komatsu HD785-5 Control Valve assembly 561-87-66102 14 723-64-22600 723-64-22600 Main Control Valve Assembly for Komatsu D85-15 Crawler Do... 15 173-3381 173-3381,272-6955,200-3366 SBS120 hydraulic pump assembly 16 702-16-02190 Komatsu HD785-7 HM300 Control Lever assembly 702-16-02190 17 561-30-81101 Wheel Rim Assembly 561-30-81101 for Komatsu Heavy-Duty Machinery 18 569-40-42502 569-40-42502 569-40-63302 Steering Valve Assembly fits Komatsu HD465 a... 19 569-01-72610 Komatsu Axle Shaft 569-01-72610 for HD465 HD785 Mining Trucks 20 627-1304 Caterpillar 627-1304 Hydraulic Pump Main Pump for E395GC 21 2881834 Cummins QST30 Fuel Pump 2881834 2881835 Bosch 0402796212 0402796213 22 5264248 Bosch Fuel Injection Pump 0445020150 5264248 for Cummins QSB6.7 & ... 23 708-1L-00320 Komatsu 708-1L-00320 Main Hydraulic Pump D65-15 D65EX-15 D65PX-15 24 569-06-86745 Komatsu HD785-7 Handle Control Assembly 569-06-86745 25 708-7W-00350 Komatsu PC1250 PC2000 Series Fan Motor (708-7W-00350 / 708-7S-00820 / ...
