Crankshaft can not changed, but connecting rod and plain bearing interchangeable.
Crankshaft A: Connecting Rod I -> Plain Bearing Black
Crankshaft A: Connecting Rod II -> Plain Bearing Blue
Crankshaft B: Connecting Rod I -> Plain Bearing Red
Crankshaft B: Connecting Rod II -> Plain Bearing Black
CF Moto listed part number is 0800-042000-0001 / 0800-042000-0002
It may fits
ATV CF400ATR CForce 450 191Q
ATV CF400ATR-2L CForce 450L 191Q
ATV CF400ATR-2L(T3a)(SS) CForce 450L 191Q
ATV CF400ATR-2L(T3b)(KSR) CForce 450L 191Q
ATV CF400ATR-2L(T3b)(SS) CForce 450L 191Q
ATV CF400ATR-2L(T3a) CForce 450L 191Q
ATV CF400ATR-2L(T3b) CForce 450L 191Q
ATV CF400ATR-2S CForce 450S 191Q
ATV CF400ATR-2S(T3a) CForce 450S 191Q
ATV CF400ATR-2S(T3b) CForce 450S 191Q
ATV CF400ATR-3L CForce 450L 191Q FOR CF400AU-3L/3S
ATV CF400ATR-3L(T3a) CForce 450L 191Q FOR CF400AU-3L/3S
ATV CF400ATR-3L(T3b) CForce 450L 191Q FOR CF400AU-3L/3S
ATV CF400ATR-3S CForce 450S 191Q FOR CF400AU-3L/3S
ATV CF400ATR-3S(T3a) CForce 450S 191Q FOR CF400AU-3L/3S
ATV CF400ATR-3S(T3b) CForce 450S 191Q FOR CF400AU-3L/3S
ATV CF400ATR-5L(T3b) IRON MAX T3 191Q
ATV CF400ATR-5S(T3b) IRON T3 191Q
ATV CF400ATR-L CForce 450L 191Q
ATV CF400AU CForce 400S/450S 191Q
ATV CF400AU(CA) CForce 400S 191Q(US)
ATV CF400AU(US) CForce 400S 191Q(US)
ATV CF400AU-2L IRON MAX L7e 191Q
ATV CF400AU-2S IRON L7e 191Q
ATV CF400AU-3L CForce 450L 191Q-A FOR CF400AU-3L/3S
ATV CF400AU-3S CForce 450S 191Q-A FOR CF400AU-3L/3S
ATV CF400AU-A CForce 450S 191Q
ATV CF400AU-B CForce 450L 191Q
ATV CF400AU-L CForce 400L/450L 191Q
ATV CF400AU-L(CA) CForce 400L 191Q(US)
ATV CF400AU-L(RU) CForce 400L 191Q
ATV CF400AU-LF CForce 450L 191-A (KSR)
ATV CF400AU-SF CForce 450S 191Q-A
ATV CF400AZ-3L CForce 450L 191Q
ATV CF400AZ-3S CForce 450S 191Q
ATV CF800-2 X8 2V91W(X8)
ATV CF800ATR CForce 800 2V91W(X8)
ATV CF800ATR-2 CForce 800 2V91W FOR CF800ATR-2
ATV CF800AU-2B CForce 800 2V91W-S
SSV CF800 ZForce 800EX 2V91W(Z8)
SSV CF800(Z8) ZForce 800EX 2V91W(Z8)
SSV CF800(CA) ZForce 800EX 2V91W(Z8-US)
SSV CF800(US) ZForce 800EX 2V91W(Z8-US)
SSV CF800US-A ZForce 800 Trail 2V91W(Z8)
SSV CF800US-A(CA) ZForce 800 Trail 2V91W(Z8-US)
SSV CF800US-A(US) ZForce 800 Trail 2V91W(Z8-US)
SSV CF800UTR ZForce Z8-EX 2V91W FOR CF800UTR
SSV CF800SU-2 ZForce 800 Trail 2V91W-B
SSV CF800SZ-2 ZForce 800 Trail 2V91W(Z8)
UTV CF800-3 UForce 800 2V91W(U8)
UTV CF800-3(CA) UForce 800 2V91W(U8-CA)
UTV CF800-3(US) UForce 800 2V91W(U8-US)
UTV CF800UTR-2 UForce 800 2V91W FOR CF800UTR-2
UTV CF800UTR-2(GD) UForce 800 2V91W FOR CF800UTR-2
UTV CF800UTR-2(KSR) UForce 800 2V91W FOR CF800UTR-2
UTV CF800UTR-2(SS) UForce 800 2V91W FOR CF800UTR-2
UTV CF800UU-A UForce 800 2V91W(U8)
UTV CF800UU-A(AU) UForce 800 2V91W(U8)
UTV CF800UU-A(KSR) UForce 800 2V91W(U8)
ATV CF800ATR-3 CForce 850XC 2V91W-A
ATV CF800ATR-3(GD) CForce 850XC 2V91W-A
ATV CF800ATR-3(KSR) CForce 850XC 2V91W-A
ATV CF800ATR-3(SS) CForce 850XC 2V91W-A
ATV CF800AU-2A CForce 850XC 2V91W-A
ATV CF800AU-2A(AU) CForce 800XC/CForce 850XC 2V91W-A(AU)
ATV CF800AU-2A(CA) CForce 800XC/CForce 850XC 2V91W-A(CA)
ATV CF800AU-2A(KSR) CForce 800XC/CForce 850XC 2V91W-A(CA)
ATV CF800AU-2A(RU) CForce 800XC/CForce 850XC 2V91W-A(CA)
ATV CF800AU-2A(US) CForce 850XC 2V91W-A(US)
ATV CF800AU-2AF CForce 800XC/CForce 850XC 2V91W-D
ATV CF800AZ-2A(CA) CForce 800XC 2V91W-D
ATV CF800AZ-2A(US) CForce 800XC 2V91W-D