MS390 Oil Pump: The "Strong-Stable Lubrication Guarantee" for High-Load Chainsaws

The MS390 is a high-load logging chainsaw, and its intense vibration and continuous heavy load during operation have high requirements for the pump’s durability and oil delivery—ordinary pumps leak or stop delivering oil easily under heavy load, but this dedicated assembly fits the condition perfectly. Its heavy-duty cast aluminum body is more robust than ordinary aluminum pumps; vibration from heavy logging won’t loosen or deform the pump. The internal copper-core structure resists oil immersion and friction, so it won’t wear or jam during long-term high-frequency oil delivery. The gear mechanism is tuned to MS390’s power output: whether cutting large-diameter logs or operating continuously for hours, oil is delivered stably and sufficiently to the chain and bar, avoiding dry friction and overheating. Whether for professional forest logging or heavy site cleaning, this pump maintains stable lubrication: wear on the chain and bar is greatly reduced, and the device’s continuous operation capability is stronger. Installation is simple—assemble directly to the lubrication system interface. With its "heavy-load robust, stable sufficient oil delivery, high durability" features, it’s a core lubrication guarantee accessory for the MS390 chainsaw.