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Mitsubishi Oil Seal 37145-01900 | Compatible with Mitsubishi Industrial Diesel Engines | Reliable Sealing Performance

The Mitsubishi Oil Seal 37145-01900 is designed to provide reliable sealing performance in high-pressure, high-temperature environments. It effectively prevents oil leaks and contamination in Mitsubishi industrial diesel engines, ensuring smooth and efficient engine operation. Compatible with a variety of Mitsubishi engine series, this oil seal is available in two versions – genuine OEM from Japan and cost-effective subsidiary factory alternatives. Whether you prioritize original factory quality or are looking for high-performance yet budget-friendly replacement parts, we provide flexible options to suit your needs. Supplied by Ningbo Qiuning Trading Co., Ltd., a trusted exporter of Mitsubishi engine parts, we offer fast delivery, strong packaging, and responsive customer support to clients worldwide. Contact us for details: WeChat/WhatsApp: +8615888032469 Email: allen@perkins-rx.com
Product Details

Mitsubishi Oil Seal 37145-01900 – Superior Engine Protection for Mitsubishi Diesel Systems

The Japan Mitsubishi Oil Seal 37145-01900 is a critical sealing component used in Mitsubishi diesel engines, designed to prevent engine oil from leaking while keeping dust and debris out. It plays a vital role in maintaining internal pressure, reducing wear, and ensuring that your engine functions efficiently over time.

Engine oil seals are subject to extreme temperatures and constant rotation. That’s why precision and durability are essential. The 37145-01900 model meets these demands with high-quality rubber materials, precise dimensions, and resistance to heat, oil, and mechanical stress.

This seal is compatible with various Mitsubishi industrial diesel engines, including those found in construction machinery, generator sets, forklifts, and agricultural equipment. Whether you’re conducting maintenance or full engine rebuilds, replacing a worn-out oil seal with a reliable one ensures leak-free, long-lasting engine performance.

We offer two types of this product through Ningbo Qiuning Trading Co., Ltd.:

  • OEM Original (Made in Japan): Manufactured under Mitsubishi’s strict quality standards, it guarantees superior sealing performance, long lifespan, and direct compatibility.

  • Subsidiary Factory Replacement: A more budget-friendly solution, this version is produced by trusted partner factories using robust materials and consistent manufacturing processes. It provides excellent value without compromising functionality.

Key Benefits:

  • Model: 37145-01900

  • Designed for Mitsubishi diesel engine systems

  • Ensures tight oil sealing and reduces internal wear

  • Available in OEM and aftermarket versions

  • Heat and oil resistant, made for heavy-duty conditions

  • Ideal for use in industrial equipment, machinery, and vehicles

At Ningbo Qiuning Trading Co., Ltd., we understand the importance of keeping your engine components in top condition. Our experienced export team provides personalized service, supports mixed orders, and offers efficient global shipping options.

Whether you're a wholesaler, distributor, or repair technician, we can support your Mitsubishi spare parts sourcing with fast response and dependable supply.

📞 Contact us for pricing and technical support:
WeChat/WhatsApp: +8615888032469
Email: allen@perkins-rx.com
Supplier: Ningbo Qiuning Trading Co., Ltd.


Common parts of MITSUBISHI diesel engines
MITSUBISHI engine consumables section
Oil filter, fuel filter, water filter, air filter, oil-water separator, coolant additive, lubricating oil, etc.
The engine block part
Cylinder block, cylinder head, rocker shaft, cylinder liner assembly, cylinder liner, piston, piston ring, cylinder liner water-blocking ring, intake valve, exhaust valve, intake valve seat ring, exhaust valve seat ring, intake valve spring, exhaust valve spring, intake valve guide, exhaust valve guide, valve oil seal, cylinder head, cylinder head gasket, cylinder gasket, intake rocker arm Exhaust rocker arm, fuel injection rocker arm, rocker arm bearing, crankshaft, camshaft seat, connecting rod assembly, connecting rod bearing bush, crankshaft bearing bush, thrust bearing bush, CAM bearing bush seat, front crankshaft oil seal, rear crankshaft oil seal, door lock plate, valve pressure plate, valve TSMC, valve push rod, connecting rod bushing, connecting rod screw CAM shaft bushing, valve bridge, piston pin, piston pin retaining ring, cylinder head screw, valve cover, rocker arm chamber assembly, water plug, upper cover of valve spring, lower cover of valve spring, others
The lubricating part is lubricated by engine oil
Oil pan, oil pan pad, oil pump, oil dipstick, oil filter, oil filter seat assembly, oil filter housing, oil hand pump, oil cooling nozzle, oil pump connection pipe, oil filter connection pipe, fixing screws, others
Diesel fuel component
Diesel filter seat assembly, diesel filter, oil-water filter assembly, oil-water filter, oil-water filter cup, diesel fuel transfer pump, diesel filter connection pipe, fuel injector assembly, fuel injector nozzle, fuel injector copper sleeve, fuel injector rubber ring, high-pressure fuel pump, high-pressure fuel pipe, fuel pump plunger, relief valve, diesel hand fuel pump/handle, fuel outlet valve, high-pressure fuel pump oil seal Others
Intake and exhaust sections
Turbocharger assembly, turbocharger gasket, turbocharger connecting pipe, intake manifold, exhaust manifold, intake pipe gasket, exhaust pipe gasket, air filter assembly, air filter, air connecting pipe, exhaust bellows, muffler, flange, hose clamp, others
Cooling section
Water tank, water pump assembly, fan blades, fan housing, fan bearings, oil-cooled radiator, intercooler, inlet pipe, outlet pipe, thermostat, water filter, water filter seat assembly, fan belt, fan belt tensioner, expansion tank, water tank cover, water filter connection pipe, oil cooler core, water pump seal Water pump oil seal, water pump bearing, intercooler air box, oil cooler housing, oil cooler pad, intercooler connecting pipe, others
MITSUBISHI Electrical Division
Charging generator, starter motor, parking solenoid valve, motor relay, magnetic pole switch, charger belt, computer control mainboard module, wiring harness, oil pressure gauge, water temperature gauge, tachometer, frequency meter, voltmeter, ammeter, oil pressure sensor, water temperature sensor, tachometer, oil level sensor Liquid level sensor, pulse sensor, air temperature sensor, diesel pressure sensor, air switch, water temperature switch, oil pressure switch, battery voltmeter, tensioner wheel, starting relay, water level sensor, voltage controller (voltage board, voltage module, voltage AVR, voltage regulating board) Speed control controller (speed control board, speed control module, speed control module), speed control actuator (speed control motor), controller (controller switch, controller key), control cabinet, others
The connecting shaft part
Flywheel, bearing, front end cover, front end cover gasket, flywheel gear ring, flywheel housing, others, bearing oil seal
The part of installing tools and equipment
Special engine oil, anti-rust water, water jacket heater, oil pump adjustment, oil nozzle adjustment, oil-water filter assembly, special tools, oil grating operator, battery, charger (float charge), coolant, parts manual, maintenance manual, special glue, others
MITSUBISHI repair kit section
Full vehicle repair package: Upper repair package, lower repair package, water pump repair package, turbocharger repair package, oil pump repair package, intercooler repair package, cylinder head repair package, high-pressure oil pump repair package, PT pump repair package, diesel pump repair package, fuel injector repair package, fuel nozzle repair package, others

Mitsubishi S6R2-PTA-C, Mitsubishi S6R2-PTAA-C, Mitsubishi S12R-PTA-C, Mitsubishi S12R-PTA2-C, Mitsubishi S12R-PTAA2-C, Mitsubishi S16R-PTA-C, Mitsubishi S16R-PTA2-C S16R-PTAA2-C full-flow oil filter element 37540-11100 Bypass oil filter element 37540-02100 Fuel filter element 32562-60300 Air filter element 47220-38802 Piston ring 37517-10010 cylinder liner 37507-82600 cylinder liner rubber ring 37507-32400 37107-04201 37107-04300 Piston 37517-30101 overhaul kit 37894-80170 Cylinder gasket 37501-12200 Crankshaft front oil seal 37511-04300 Crankshaft rear oil seal 37711-04300, intake valve 37504-03800, intake valve guide 37101-10600, intake valve seat ring 37501-13100, exhaust valve 37504-40200, exhaust valve guide 37101-10600, exhaust valve seat ring 37501-13100 main bearing bush (standard) 37709-12010 main bearing bush (0.25) 37709-12020 main bearing bush (0.50) 37709-12030 main bearing bush (0.75) 37709-12040 main bearing bush (1.00) 37709-12050 Connecting rod bearing (Standard) 37519-13100 Connecting rod Bearing (0.25) 37519-13200 connecting rod Bearing (0.50) 37519-13300 connecting rod Bearing (0.75) 37519-13400 connecting rod Bearing (1.00) 37519-13500 Thrust Plate (Standard) 37709-18100 thrust plate (0.25) 37709-18200 thrust plate (0.50) 37709-18300 thrust plate (0.75) 37709-18400 Starter motor 38E66-00201 Charger 04343-38000 Water pump 37745-60011 turbocharger repair kit, fuel injector 37560-39001, charger belt 37768-04200 Mitsubishi S6R2-PTA-C, Sanling S6R2-PTAA-C, Sanling S12R-PTA-C, Sanling S12R-PTA2-C, Mitsubishi S12R-PTAA2-C Mitsubishi S16R-PTA-C Mitsubishi S16R-PTA2-C Mitsubishi S16R-PTAA2-C Mitsubishi S6R2-PTA-C Mitsubishi S6R2-PTAA-C Mitsubishi S12R-PTA-C Mitsubishi S12R-PTA2-C Mitsubishi S12R-PTAA2-C Mitsubishi S16R-PTA-C Mitsubishi S16R-PTA2-C Mitsubishi S16R-PTAA2-C Mitsubishi S6R2-PTA-C Mitsubishi S6R2-PTAA-C Mitsubishi S12R-PTA-C Mitsubishi S12R-PTA2-C Mitsubishi S12R-PTAA2-C Mitsubishi S16R-PTA-C Mitsubishi S16R-PTA2-C Mitsubishi S16R-PTAA2-C
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