Mould King Parts List: A Buyer's Guide for MOC Builders
Mould King is a familiar name in the Chinese brick MOC scene, with particular weight in Technic and mechanical builds. Plenty of builders reach for Mould King parts first when planning a new model. This guide breaks down the Mould King parts list in detail — part quality, compatibility with MOC instructions, and where to actually buy the pieces.
About Mould King
Mould King was among the earlier Chinese brands to specialise in Technic and mechanical builds. Unlike brands built around modular street scenes and architecture, its catalogue leans heavily toward the Technic line: race cars, construction machinery, robots and other motorised models.
On the question of how Mould King actually performs, the consensus among builders is "solid Technic parts, strong value for money." Gears, motors and other drivetrain components sit in the top tier of domestic production, which is exactly why so many Technic MOCs specify Mould King parts.
Mould King Parts List in Detail
Standard Parts
Mould King's standard parts fall into a few broad families. This parts list gives you a quick map of the range:
1. Technic Beams
| Model | Length | Holes | Use |
|---|---|---|---|
| GB-101 | 1x2 | 1 hole | Small connections |
| GB-103 | 1x4 | 3 holes | Medium structures |
| GB-105 | 1x6 | 5 holes | Frame building |
| GB-109 | 1x9 | 8 holes | Long beam structures |
| GB-115 | 1x15 | 14 holes | Large structural frames |
2. Connectors
Mould King's connector range is broad:
- Angle connectors: 90°, 180°, adjustable angle
- T-shaped connectors: 3-hole T, 4-hole T
- Cross connectors: 4-hole cross, 5-hole cross
- Ball-joint connectors: for building posable joints
3. Gears & Drivetrains
This is where Mould King is strongest:
- Standard gears: 8-tooth, 12-tooth, 16-tooth, 20-tooth, 24-tooth, 36-tooth and more
- Differentials: standard and locking
- Worm gears: several sizes
- Chain and track links: tank track, bicycle chain
4. Power Functions
Mould King offers a full set of power components:
- Motors: L motor, XL motor, servo motor
- Battery boxes: standard and rechargeable
- Remote receivers: Bluetooth and infrared
- Lighting modules: LED strips, headlights
Special Parts
Mould King also makes special MOC pieces that are genuinely useful when you are building from Mould King MOC instructions:
- Caster wheels: for robot chassis
- Pneumatics: cylinders, pumps, valves
- Suspension systems: shock absorbers, independent suspension components
- Large tires: off-road and road tires in a range of sizes
Mould King vs Gobricks Parts
In the domestic brick market, Gobricks parts and Mould King parts are the two brands builders most often weigh against each other. Here are the main differences:
Gobricks Parts
- Strengths: extremely high precision, the best LEGO compatibility
- Weaknesses: higher price, a narrower range of special pieces than Mould King
- Best for: builders chasing the tightest possible fit and finish
Mould King Parts
- Strengths: a wide Technic range, good value, a complete power-function lineup
- Weaknesses: some standard bricks are slightly less precise than Gobricks
- Best for: Technic MOCs and motorised models
Using Them Together
Many experienced MOC builders run both brands in the same model:
- Use Gobricks for structural and cosmetic pieces, where precision and appearance matter most
- Use Mould King for drivetrain and power parts, drawing on its deeper Technic catalogue
- When you open an MOC parts list on brickplan.cn, match the list against both brands and mix freely
How Good Is Mould King? Real Builder Feedback
What Builders Praise
- Technic parts hold up: gears mesh smoothly, motors deliver the power
- Good value: same-spec Technic parts run 30%-50% cheaper than Gobricks
- Wide range: plenty of special pieces for creative builds
- Compatibility: fully compatible with LEGO Technic
Room for Improvement
- Standard brick precision: some standard bricks grip loosely
- Color consistency: slight variation between batches
- Bagging: some sets are not bagged by building step, so sorting parts costs time
Where to Buy Brick Parts
Knowing where to buy matters as much as knowing the Mould King parts list. These are the most practical channels:
1. Official Stores
- Taobao / Tmall Mould King flagship store: the fullest product line, official authenticity guaranteed
- JD.com Mould King official store: fast shipping, dependable after-sales service
2. Individual Part Platforms
- Gobricks official site: sells individual Gobricks pieces, searchable by part number
- BrickLink: the global brick trading platform, with the widest part selection (international shipping runs high)
- Taobao parts shops: many domestic stores specialise in individual brick pieces
3. Buying Parts Alongside MOC Instructions
- After downloading instructions on brickplan.cn, some listings include a parts list you can order through partner sellers in one click
- This saves you looking up part numbers and comparing prices yourself
4. Second-Hand Trading
- Xianyu: builders regularly clear out parts at friendly prices
- Builder groups: members trade and sell parts among themselves
Buying Mould King Parts from an MOC Parts List
An efficient purchasing plan is the key to finishing an MOC build:
Step 1: Download the MOC instructions on brickplan.cn and export the parts list
Step 2: Sort the list into standard bricks, Technic parts and special pieces
Step 3: Check each line against the Mould King parts list to confirm available part numbers
Step 4: Swap anything Mould King does not make for Gobricks or another brand
Step 5: Order in bulk, comparing prices across platforms first
Step 6: Sort the delivery by category so parts are easy to find during the build
Tips for Working with Mould King Parts
- Gear pairings: the 8-tooth and 24-tooth gears are the most-used combination and cover a wide range of gear ratios
- Motor choice: an L motor is enough for static models; heavy motorised models call for the XL motor
- Structural bracing: when a long Mould King beam spans a wide gap, add cross bracing to keep it stable
- Color planning: black and grey parts are the best-stocked colours, so lean on them when designing an MOC
Final Thoughts
Mould King is a serious option whether you build Technic MOCs or motorised models that need a lot of drivetrain and power parts. The real gains come from mixing brands deliberately: Gobricks where fit and finish show, Mould King where gears and motors do the work. That balance gets you the best combination of price and quality in a single model.
Looking for more MOC instructions and parts lists? Head to brickplan.cn and join the builder community.