汽車變速器作用：


1、改變傳動比，擴大驅動輪轉矩和轉速的變化范圍，以適應經常變化的行駛條件，同時使發動機在功率較高而油耗較低)的工況下工作；


2、在發動機旋轉方向不變情況下，使汽車能倒退行駛；

供應144-6691卡特發電機組變速箱濾芯以客為尊

卡特彼勒CATERPILLAR：14243401421403
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3S18123S22983S22983S30063S47373S47463S47483S47753S48333S5775

供應144-6691卡特發電機組變速箱濾芯以客為尊