EMD GP40 production from April-December 1971 featured a different dynamic brake blister than that of earlier GP40s. Its shape was between those of earlier GP40s and GP40-2s. Units so equipped were: B&O 4000-4064; C&O 3780-3794, 4065-4089, & 4090-4099; D&RGW 3086-3093; SCL 1633-1635; WM 3795-3799; and WP 3527-3544. Fits Atlas Master GP40.
Package contents: (1) 3D-printed resin blister, (1) vent, (2) side grilles