WP GP40 Locos:
This page is dedicated to the WP's fleet of GP40 units. The WP was the original owner of 44 GP40 units.
Original orders:
| Orig. road numbers | model | EMD serial no. | build date | notes |
| WP 3501-3510 | GP40 | 31662-31671 | 5/1966 | |
| WP 3511-3516 | GP40 | 33056-33061 | 3/1967 | |
| WP 3517-3521 | GP40 | 36824-36828 | 8/1970 | |
| WP 3522-3526 | GP40 | 36783-36787 | 8/1970 | |
| WP 3527-3544 | GP40 | 37838-37855 | 8-9/1971 |
GP40: WP 3501 31662 5/1966 to UP 651 to MP 651 to UP 651 to KCS 4765 WP 3502 31663 5/1966 to UP 652 to KCS 4766 WP 3503 31664 5/1966 to UP 653 to KCS 4767 WP 3504 31665 5/1966 to UP 654 to KCS 4768 WP 3505 31666 5/1966 wrecked Floka, NV 3/28/1970 scrapped WP 3506 31667 5/1966 to UP 655 to KCS 4769 WP 3507 31668 5/1966 to UP 656 to KCS 4770 WP 3508 31669 5/1966 to UP 657 to KCS 4771 WP 3509 31670 5/1966 to UP 658 to KCS 4772 WP 3510 31671 5/1966 to UP 659 to KCS 4773 WP 3511 33056 3/1967 to UP 660 to KCS 4774 WP 3512 33057 3/1967 to UP 661 to KCS 4775 WP 3513 33058 3/1967 to UP 662 to MP 662 to UP 662 to KCS 4776 WP 3514 33059 3/1967 to UP 663 to KCS 4777 WP 3515 33060 3/1967 to UP 664 to KCS 4778 WP 3516 33061 3/1967 to UP 665 to MP 665 to UP 665 to KCS 4779 WP 3517 36824 8/1970 to CMNW 3000 to WC 3000 WP 3518 36825 8/1970 to UP 667 to CMNW 3001 to GWWR 3001 to SSW 7277 (GP40M-2) WP 3519 36826 8/1970 to CMNW 3002 to WC 3002 WP 3520 36827 8/1970 to CMNW 3003 to WC 3003 WP 3521 36828 8/1970 to CMNW 3004 to WC 3004 WP 3522 36783 8/1970 to CMNW 3005 to WC 3005 WP 3523 36784 8/1970 to CMNW 3006 to WC 3006 WP 3524 36785 8/1970 to CMNW 3007 to WC 3007 WP 3525 36786 8/1970 to CMNW 3008 to GWWR 3008 WP 3526 36787 8/1970 to CMNW 3009 to WC 3009 WP 3527 37838 8/1971 wrecked Hayward, CA 4/4/1980 scrapped WP 3528 37839 8/1971 to UP 676 to CMNW 3011 to WC 3011 WP 3529 37840 8/1971 to CMNW 3012 to GWWR 3012 WP 3530 37841 8/1971 to CMNW 3013 to GWWR 3013 to KCS 4799 WP 3531 37842 8/1971 to UP 679 to CMNW 3014 to WC 3014 WP 3532 37843 8/1971 to UP 680 to CMNW 3015 to WC 3015 WP 3533 37844 8/1971 to UP 681 to CMNW 3016 to GWWR 3016 to SSW 7279 (GP40M-2) WP 3534 37845 8/1971 to CMNW 3017 to WC 3017 WP 3535 37846 8/1971 to CMNW 3018 to GWWR 3018 to SSW 7275 (GP40M-2) WP 3536 37847 8/1971 to UP 684 to CMNW 3019 to WC 3019 to KCS 3151 WP 3537 37848 8/1971 to CMNW 3020 to GWWR 3020 to KCS 3152 WP 3538 37849 9/1971 to UP 686 to CMNW 3021 to GWWR 3021 to SSW 7280 (GP40M-2) WP 3539 37850 9/1971 to CMNW 3022 to WC 3022 WP 3540 37851 9/1971 to WP 1776 to WP 3540 wrecked Hayward, CA 4/4/1980 scrapped WP 3541 37852 9/1971 to WP 1976 to WP 3541 to CMNW 3023 to WC 3023 WP 3542 37853 9/1971 to CMNW 3024 to WC 3024 WP 3543 37854 9/1971 to UP 690 to CMNW 3025 to WC 3025 WP 3544 37855 9/1971 to UP 691 to CMNW 3010 to GWWR 3010 to SSW 7278 (GP40M-2)