Every K’NEX / Knex item is hand‑sorted, inspected, and pre‑packaged for quality assurance.
All parts are authentic OEM K’NEX — never off‑brand, never 3D‑printed.
Never bulk pulled — no dusty bins, no mixed lots, no surprises.
Professionally packaged for builders, educators, and collectors.
Ideal for classroom STEM projects, makerspaces, robotics clubs, and homeschool programs.
MNWebSource maintains one of the most complete OEM vintage K’NEX catalogs available — rods, connectors, micro parts, motors, tubing, gears, tires, clips, chains, panels, coaster cars, balls, robots, and more.
Trusted by STEM educators, roller coaster enthusiasts, and master builders worldwide.
Description
You will receive the quantity shown in the title.
This listing is for the Large Silver Trekker Motor — a powerful 2‑speed battery‑powered motor used in many classic K’NEX builds.
Features a high‑torque gearbox with two selectable speeds for lifts, crank systems, vehicles, and mechanical motion.
Fully tested for strong output, smooth gear engagement, and consistent performance.
Clean battery terminals — no corrosion, no cracked housing, no stripped gears, and no electrical issues.
Ideal for engineering projects, robotics, ball machines, vehicles, cranes, and STEM builds.
These are USED OEM K’NEX motors — hand‑sorted to ensure reliability and proper function.
Compatible with all Standard‑scale K’NEX rods, gears, axles, and mechanical systems.
Shipping
Ships same‑day or within 18 hours from our Midwest hub.
Professional packaging: polybags, thank‑you cards, and occasional stickers for large orders.
Fast coast‑to‑coast and tracked international delivery.
Returns
60‑day returns accepted.
Items must be returned complete and in original condition.
Feedback
We strive for 5‑star feedback and respond to messages quickly.
Positive feedback left for every buyer.
About Us
Born and raised Minnesotans, we operate MNWebSource as a family‑owned business committed to consistent OEM quality and long‑term support for the builder community.
We maintain one of the most complete OEM vintage K’NEX catalogs available — rods, connectors, micro parts, motors, tubing, gears, tires, clips, chains, panels, coaster cars, balls, robots, and more.
Every piece is hand‑sorted, cleaned, brittle‑checked, and professionally packaged.
Supporting educators, STEM programs, robotics clubs, makerspaces, homeschool builders, science museums, and master builders with reliable OEM parts.
More than half of our buyers are repeat customers — a community of builders, educators, and collectors who return because they trust our consistent OEM quality.
We ship worldwide and proudly support the global builder community.
Repeat buyers include roller coaster builders and ball machine creators.
We are not affiliated with K’NEX; all names and marks are registered trademarks of K’NEX.