Ok so it looks like the 98-99 EFI's use part # 3005-080 and the Carbs use part # 3005-248. So a stator from a 98 or 99 ZL 500/600 or ZR 500/600 carb should work for me. I wonder what is different about the efi stator.
EDIT: Found more info. Any of these stators should work for my sled. Hope this helps anyone else looking.
Part Number: 3005-248
Replaces: 3005-144 and 3005-368
Arctic Cat 1998 POWDER SPECIAL 600 (98PSB-1998) - MAGNETO on-line parts
Arctic Cat 1998 ZL 500 (98ZLB-1998) - MAGNETO on-line parts
Arctic Cat 1998 ZR 500 (2nd RUN) (98ZRD-1998) - MAGNETO on-line parts
Arctic Cat 1998 ZR 600 (2nd Run) (98ZRH-1998) - MAGNETO on-line parts
Arctic Cat 1999 POWDER SPECIAL 600 (99PSB-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZL 500 (99ZLB-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZL 600 (99ZLH-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZR 440 SNO-PRO (99ZRE-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZR 500 (99Z5A-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZR 500 LE - BLACK (99Z5E-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZR 500 LE - GREEN (99Z5B-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZR 500 LE - PEARL (99Z5F-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZR 600 (99Z6A-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZR 600 LE - BLACK (99Z6J-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZR 600 LE - GREEN (99Z6G-1999) - MAGNETO on-line parts
Arctic Cat 1999 ZR 600 LE - PEARL (99Z6K-1999) - MAGNETO on-line parts
Arctic Cat 2000 ZL 500 (S2000ZLCCAUS-2000) - MAGNETO on-line parts
Arctic Cat 2000 ZR 500 (S2000ZLRCCAUS-2000) - MAGNETO on-line parts
Part Number: 3005-144
Replaced By: 3005-248
Arctic Cat 1998 ZR 500 (JANUARY) (98ZRDA-1998) - MAGNETO on-line parts
Arctic Cat 1998 ZR 600 (JANUARY) (98ZRHA-1998) - MAGNETO on-line parts
Part Number: 3005-368
Replaced By: 3005-248
Arctic Cat 1998 ZR 440 SNO-PRO (98ZRE-1998) - MAGNETO on-line parts