These are the superIDs of catalog entries of both 2.2.1MWM and 2.3.0LE. You'll find them useful when you'll get some mod that doesn't work with your game version, nor with LE2MWM alike mods - and you need to replace the incompatible ones with proper ones.

2.2.1MWM

Engine:
025C - Engine Blocks
025E - Crankshafts & Bearning
00B7 - Connecting Rods
00B6 - Pistons
0252 - Oil Pans
025D - Cylinder Heads
025F - Intake & Exhaust Crankshafts
026F - Air Delivery: Intakes
0255 - Air Delivery: Air Filters
026E - Fuel Delivery: Carburetors
026B - Fuel Delivery: Injectors
023C - Clutchs & Flywheels: Flywheels
0249 - Clutchs & Flywheels: Clutches
023B - Transmission & Drivetrain: transmissions
024A - Transmission & Drivetrain: differentials
0250 - Exhaust System: Pipes
0282 - Exhaust System: Headers
00C9 - Exhaust Tips
00BE - Drive Belts
0012 - Accesories & Others: Alternators
D122 - Accesories & Others: Electrics/Electronics
0010 - Accesories & Others: Batteries
0279 - Charging System: Superchargers
0281 - Charging System: Turbochargers
00BD - Charging System: Pipes etc.
0277 - N2O System: Canisters
00B4 - N2O System: Injectors
F27D - Pro tunning
F23C - Engine Kits

Body:
F242 - Body Panels
F24F - Replacement Parts
F24C - Lights & Windows
F24B - Neon Lights
F233 - Areodynamic Tuning
F228 - Others
F23B - Body Kits

Running Gear:
F235 - Rims
F229 - Suspensions
001C - Shock Absorbers
F22A - Springs
F22D - Disc Brakes
009B - Drum Brakes
F23E - Tyres
D120 - Others
D121 - Pro Tunning
F249 - Running Gear kits

Interior:
F243 - Steering wheels
F245 - Dashes
F23f - Gearknobs
F241 - Pedals
F244 - Gauges
F246 - Seats
F247 - Rollbars
F248 - Decoration

Audio:
F240 - Head Units
0246 - Amplifiers
0247 - Boxes
0248 - Subwoofers
024B - Accesories
025B - Audio Kits

2.3.0LE

Engine:
a) I4
2AB5C - Engine Blocks
AA5E -  Crankshafts & Bearning
AB7E -  Connecting Rods 
0AB6 -  Pistons 
A25D -  Cylinder Heads 
A25F -  Intake & Exhaust Crankshafts
A282 -  Exhaust Systems 
A26F -  Air Delivery
A26B -  Fuel Delivery 
0AB4 -  Performance Systems 
A24B -  Transmissions 
A23C -  Clutchs & Flywheels
0ABE -  Others

b) I6
AA5C -  Engine Blocks 
AB5E -  Crankshafts & Bearning 
BB7E -  Connecting Rods
0BB6 -  Pistons 
B25D -  Cylinder Heads 
B25F -  Intake & Exhaust Crankshafts 
B282 -  Exhaust Systems 
B26F -  Intake Systems
B26B -  Fuel Delivery 
0BB4 -  Performance Systems 
B24B -  Transmissions 
B23C -  Clutchs & Flywheels
0BBE -  Others

c) V6
AD5C -  Engine Blocks 
AD5E -  Crankshafts & Bearning 
DB7E -  Connecting Rods 
0DB6 -  Pistons 
D25D -  Cylinder Heads 
D25F -  Intake & Exhaust Crankshafts
D282 -  Exhaust Systems 
D26F -  Air Delivery
D26B -  Fuel Delivery 
0DB4 -  Performance Systems 
D24B -  Transmissions 
D23C -  Clutchs & Flywheels
0DBE -  Others

d) V8
AC5C -  Engine Blocks 
AC5E -  Crankshafts & Bearning 
CB7E -  Connecting Rods 
0CB6 -  Pistons 
C25D -  Cylinder Heads 
C25F -  Intake & Exhaust Crankshafts 
C282 -  Exhaust Systems 
C26F -  Air Delivery
C26B -  Fuel Delivery 
0CB4 -  Performance Systems 
C24B -  Transmissions
C23C -  Clutchs & Flywheels
0CBE -  Others

e) V10
AE5C -  Engine Blocks 
AE5E -  Crankshafts & Bearning 
EB7E -  Connecting Rods 
0EB6 -  Pistons 
E25D -  Cylinder Heads 
E25F -  Intake & Exhaust Crankshafts 
E282 -  Exhaust Systems 
E26F -  Air Delivery
E26B -  Fuel Delivery
0EB4 -  Performance Systems 
E24B -  Transmissions 
E23C -  Clutchs & Flywheels
0EBE -  Others

 f) V12
AF5C -  Engine Blocks 
AF5E -  Crankshafts & Bearning 
FB7E -  Connecting Rods 
0FB6 -  Pistons 
F25D -  Cylinder Heads 
F25F -  Intake & Exhaust Crankshafts 
F282 -  Exhaust Systems 
F26F -  Air Delivery
F26B -  Fuel Delivery 
0FB4 -  Performance Systems 
F24B -  Transmissions 
F23C -  Clutchs & Flywheels
0FBE -  Others
 
g) V16
A05C -  Engine Blocks 
A05E -  Crankshafts & Bearning
0B7E -  Connecting Rods 
00B6 -  Pistons 
025D -  Cylinder Heads 
025F -  Intake & Exhaust Crankshafts 
0282 -  Exhaust Systems 
026F -  Air Delivery
026B -  Fuel Delivery 
00B4 -  Performance Systems 
024B -  Transmissions 
023C -  Clutchs & Flywheels
00BE -  Others

Body:
F242 - Body Panels
F24F - Replacement Parts
F24C - Lights & Windows
F228 - Neon Lights
F233 - Areodynamic Tuning
00C9 - Mufflers
F23B - Body Kits

Running Gear:
F229 - Suspensions
F22A - Shocks & Springs
F22D - Disc Brakes
F235 - Stock Rims
F23D - Street Rims
F23E - Tyres
F249 - Running Gear kits

Interior:
F243 - Steering wheels
F245 - Dashes
F23F - Gearknobs
F241 - Pedals
F246 - Seats
F248 - Decoration
F247 - Extras

Audio:
F240 - Head Units
F246 - Amplifiers
F247 - Boxes
F248 - Subwoofers
F24B - Accesories
025B - Audio Kits