The LEGO Technic Themed Parts Pack theme, active from 2000 to 2001, featured specialized packs designed to enhance specific aspects of Technic models. Key sets in this theme include the "5218 Pneumatic Pack," which provided pneumatic cylinders and pumps for adding air-powered functions; the "5222 Vehicle Chassis Pack," containing components to build robust vehicle frameworks; the "5219 Silver Wheel Multi Pack," offering a variety of stylish wheels and rims; the "5221 Motorised Base Pack," which included a motor and battery box for motorizing models; the "5220 Vehicle Styling Pack," providing parts for customizing the appearance of vehicles; and the "5223 Wind-Up Motor," a wind-up mechanism for adding motion without batteries.
Themed Parts Pack consists of 6 sets that ran from 2000 to 2001. As of today,
5218 Pneumatic Pack is the most valuable Themed Parts Pack set with an estimated new/factory sealed value of $296.
Summary
Technic Themed Parts Pack Motorised Base Pack set 5221 was released in January 2001, retailing for $40, but has since been retired. New, unopened Motorised Base Pack sets are valued at $59, while used sets can be found for $19.
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