Parts List for K'NEX STEM Explorations Roller coaster set
The K'NEX STEM Explorations Roller coaster set dates from 2016. The building set code is 77078. Click here to download the instruction book for this set.
Parts missing from a new set
1. If you have purchased this K'NEX set recently and are still within the “return policy window”, please return or exchange your item at the point of purchase for a new kit with a complete set of all parts.
2. If you have purchased this K'NEX set from new, and parts were missing or broken when you bought it, and you are unable to return/exchange the set at the point of purchase, please visit https://www.basicfun.com/customer-support/ on the Basic Fun website and answer the questions on that web page to raise a missing part request.
Buying parts
If, instead, you want to buy extra parts for the set, please:
1. Click on [Buy] below for each part that you need, to view the product page for that part, and then select [Buy] again.
2. Proceed to Checkout, and enter your name, address, payment method, etc.
Alternatively, you can use the menu on the left to identify and purchase the parts that you need.

|
Ref | Code | Description | Buy? |
A | 509502 | MICRO K'NEX Rod 14mm Black | |
B | 509512 | MICRO K'NEX Rod 25mm Yellow | |
C | 509522 | MICRO K'NEX Rod 40mm Dark Grey | |
D | 509532 | MICRO K'NEX Rod 63mm Red | |
E | 509542 | MICRO K'NEX Rod 94mm Purple | |
F | 509552 | MICRO K'NEX Rod 138mm Blue | |
G | 530302 | MICRO K'NEX Rod 200mm Orange | |
H | 509092 | MICRO K'NEX Connector 4-way 3D Blue | |
I | 509062 | MICRO K'NEX Connector 5-way Red | |
J | 509052 | MICRO K'NEX Connector 4-way Light Grey | |
K | 509032 | MICRO K'NEX Connector 2-way Orange | |
L | 509012 | MICRO K'NEX Clip with Hole end Green | |
M | 509081 | MICRO K'NEX Connector 8-way Black | |
N | 509072 | MICRO K'NEX Connector 7-way 3D Dark grey | |
O | 509042 | MICRO K'NEX Connector 3-way Yellow | |
P | 509142 | MICRO K'NEX Clip with Rod end Tan | |
Q | 509002 | MICRO K'NEX Interlocking clip Blue | |
R | 530600 | MICRO K'NEX Spacer 6 Wide Translucent White | |
S | 530400 | MICRO K'NEX Spacer 4 Wide Blue | |
T | 512242 | MICRO K'NEX Spacer 3 Wide Metallic blue | |
U | 516400 | MICRO K'NEX Snap cap Black | |
V | 509022 | MICRO K'NEX Connector 2-way straight Purple | |
W | 90953 | K'NEX Rod 86mm Yellow | |
X | 90951 | K'NEX Rod 32mm White | |
Y | 90954 | K'NEX Rod 128mm Red | |
Z | 90904 | K'NEX Connector 3-way Red | |
ZA | 848900 | K'NEX Snap cap Black | |
ZB | 91224 | K'NEX Spacer Silver | |
ZC | 91994 | K'NEX Spacer small Light grey | |
ZD | 530801 | MICRO K'NEX Transition Rod 21mm Fluorescent Red | |
ZE | 531100 | MICRO K'NEX Classic-to-micro reducer clip Yellow | |
ZF | 90900 | K'NEX Interlocking clip Tan | |
ZG | 90950 | K'NEX Rod 16mm Green | |
ZH | 24351G | MICRO K'NEX Coaster Track 203mm straight Green | |
ZI | 99138OR | MICRO K'NEX Coaster Track 203mm straight Orange | |
ZJ | 847816 | MICRO K'NEX Coaster track semi circle Green | |
ZK | 509870 | K'NEX Chain link Small 20mm | |
ZL | 850200 | MICRO K'NEX Chain Guide | |
ZM | 517900 | K'NEX Sprocket gear Black | |
ZN | 90908 | K'NEX Connector 8-way White | |
ZO | 99880 | MICRO K'NEX Coaster track semi circle Orange | |
ZP | 22722 | K'NEX Battery Motor Green | |
ZQ | 24153 | MICRO K'NEX Coaster Car Silver | |