This is a Cub Cadet Spacer 748-0234. It fits 

Cub Cadet 1002 (130-522D100) - Cub Cadet Rear-Engine Riding Mower (1990) - 32" Deck
Cub Cadet 1028 (31AH4Q3G100) - Cub Cadet 4x4 Snow Thrower (2002) - Engine & V-Belts
Cub Cadet 1028STE (31AH7Q3G100) - Cub Cadet Snow Thrower (2002) - Frame Assembly
Cub Cadet 1030TE (31AE7B3F100) - Cub Cadet Snow Thrower (1998) - Drive Belts
Cub Cadet 1106 (137-519-100) - Cub Cadet Rear-Engine Riding Mower (1987) - 38" Deck
Cub Cadet 1136 (136-518-100) - Cub Cadet Rear-Engine Riding Mower (1986) - 36" Rear Discharge Mowing Deck Part 1
Cub Cadet 136X694G401 - Yardman Lawn Tractor (1996) - Transmission Linkage
Cub Cadet 14AW834H401 - Yardman Garden Tractor (1998) - Deck Assembly & Blades
Cub Cadet 151 (151315) - Cub Cadet Snow Thrower (1985) - Snow Thrower
Cub Cadet 221LHP (31AM2T6D710, 31AM2T6D709, 31AM2T6D713, 31AM2T6D756) - Cub Cadet 1X Snow Thrower (2014) - Drive System & Auger Assembly
Cub Cadet 410 (311-192-100) - Cub Cadet Snow Thrower (1991) - Snow Thrower
Cub Cadet 521E (31AE162-101) - Cub Cadet Snow Thrower (1999) - Shave Plate & Chute
Cub Cadet 521E (31AE162-100) - Cub Cadet Snow Thrower (2000) - Auger Housing Assembly
Cub Cadet 524 (31AE600E022) - Cub Cadet Gold Series Snowthrower (2002) - Engine & V-Belt
Cub Cadet 524T (316-716E100) - Cub Cadet Snow Thrower (1996) - Belt Drive
Cub Cadet 526WE (31AH6WTS710) - Cub Cadet Snow Thrower (2008) - Drive System
Cub Cadet 565 (565312) - Cub Cadet Snow Thrower (1982) - Frame, Belts & Pulleys and Engine Plate Assemblies
Cub Cadet 685 (241-685-100) - Cub Cadet Walk-Behind Vacuum/Blower (1991) - Power Vacuum
Cub Cadet 685 (243-685-100) - Cub Cadet Walk-Behind Vacuum/Blower (1993) - Chore Performer - Part II
Cub Cadet 724STE (31AH733E100) - Cub Cadet Snow Thrower (2001) - Frame
Cub Cadet 800 (131-512B100) - Cub Cadet Rear-Engine Riding Mower (1991) - Parts For Riding Mower With 30" Side Discharge Mowing Deck
Cub Cadet 804 (139-517-100) - Cub Cadet Rear-Engine Riding Mower (1989) - 32" Deck
Cub Cadet 826 4x4 (31AH4G3F100) - Cub Cadet Snow Thrower (2000) - Engine & V-Belts
Cub Cadet 826 4x4 (31AH4G3F100) - Cub Cadet Snow Thrower (2001) - Engine & V-Belts
Cub Cadet 826SWE (31AH5F3F100) - Cub Cadet Snow Thrower (2000) - Engine & V-Belts
Cub Cadet 826T (314-648F100) - Cub Cadet Snow Thrower (1994) - Snow Throwers - Part III
Cub Cadet CC30 (13A226JD010) - Cub Cadet Mini Rider (2014) - Pedal Controls
Cub Cadet CSV260 (24A-315C100) - Cub Cadet Chipper/ Shredder/ Vacuum (2000) - Drive (Part 1)