227-0620 GAUGE GP-SIGHT FOR Caterpillar parts

1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 303, 303.5C, 303.5D, 303C CR, 304, 304D CR, 305, 305.5, 305.5D, 305D CR, 307C, 307D, 308C, 308D, 311C, 311D LRR, 312B L, 312C, 312C L, 312.