366-8821 3668821 260-2503 2602503 221-8874 283-5585 279-3986 ECM Electronic Control Group Caterpillar parts 307D, 308D, 311D LRR, 312D, 313D, 313D2, , 314D CR, 315D L, 318D L, 318D2 L, 319D L, 319D LN, 320D, 329D, 330D, 336D, 340D, 345D, 349D， weight 2.5kg

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