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Electric, Motor 9V Power Functions L with Dark Bluish Gray Bottom : Part 99499c01 | BrickLink
LEGO MOC Small Halftrack Chassis - PF L motor by Stinkwell_exhaust_creations | Rebrickable - Build with LEGO
Lego Technic Set Motor Power Functions 8293 - L Parts 8293 8883 Model Building - Aliexpress
Amazon.com: 47Pcs Motor Power Function Kit Set for Lego Technic, 8X Battery Box, 2X XL-Motor, 4X L- Motor, 2X M-Motor, 4X IR Receiver, 2X IR Remote Control, Latest Differential : Toys &