Soft Caterpillar 3385272-00, rating 500@2100; 1650@1200 500@2100; 1750@1200; 1650@1200. C-15 Truck | 500@2100, 1650@1200 | 500@2100, 1750@1200 FLEET | 435/500HP@2100, 1550/1650@1200 OWS | Engine S/N >=