K'NEX Parts & Accessories

Premium replacement parts and upgrade kits for your favorite K'NEX builds. Built by fans, for fans.

K'NEX Parts & Accessories

Premium replacement parts and upgrade kits for your favorite K'NEX builds. Built by fans, for fans.

K'NEX Parts & Accessories

Premium replacement parts and upgrade kits for your favorite K'NEX builds. Built by fans, for fans.

1139 results
1139 results
Gears & Chains

Black Sprocket Gear

$0.90 /ea In Stock

Black Sprocket Gear

In Stock $0.90
Gears & Chains

Medium Red Gear

$1.59 /ea In Stock

Medium Red Gear

In Stock $1.59
Gears & Chains

Small Gold Gear

$0.95 /ea In Stock

Small Gold Gear

In Stock $0.95
Join Waitlist We generally have more stock on hand than our website shows. So stock could be updated quickly! We try to restock at least once a week if possible depending on part supplies.