Image Item No. Description  motor6  Pullback Motor 7 x 5 x 3 (Motor 6) Catalog: Parts: Motor, Non-Electric  32283c02  Pullback Motor 9 x 4 x 2 1/3 with Black Base, White Axle Holes, Studs on Front Top Surface Catalog: Parts: Motor, Non-Electric  32283c03  Pullback Motor 9 x 4 x 2 1/3 with Dark Gray Base, White Axle Holes, Studs on Front Top Surface Catalog: Parts: Motor, Non-Electric  47715c01  Pullback Motor 9 x 4 x 2 2/3 Catalog: Parts: Motor, Non-Electric  motor8  Pullback Motor 10 x 5 x 4 Motorcycle (Motor 8) Catalog: Parts: Motor, Non-Electric  45721c01  Windup Motor 4 x 4 x 3 1/3 (Technic) Catalog: Parts: Motor, Non-Electric