Caterpillar 3406B, Engine Brakes, (GOOD USED) Caterpillar 3406B Engine Brakes 346D W/Housing & Bolts For Sale, Model: 346D, Housing P/N Front: 17770 Rear: 17771, Rear HSG 346D 12VDC C192972, WF5, 3H04, 005610K, Front HSG 346D 12VDC C192773, WF5, 3H04, 005610K, Pulled off 1988 Caterpillar 3406B, Stock # 8768
