How many pieces does the LEGO Cat D11 Bulldozer (42131-1) have?

The LEGO Cat D11 Bulldozer set (42131-1) contains 3854 pieces. It was released in 2021 as part of the LEGO Technic theme.

How can I find missing parts for LEGO set 42131-1?

On BrickMissing you can check which parts from the LEGO Cat D11 Bulldozer (42131-1) you already own. Add your LEGO collection and we'll show exactly which of the 3854 pieces you're missing and which you already have.

Can I build the LEGO Cat D11 Bulldozer with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 3854 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Cat D11 Bulldozer from?

The LEGO Cat D11 Bulldozer (42131-1) belongs to the LEGO Technic theme. You can browse all Technic sets on BrickMissing to find more sets from this theme.

Cat D11 Bulldozer

42131-1 Technic 2021 3854 parts 3% repair risk Expert

The LEGO Technic App-Controlled Cat D11 Bulldozer (42131-1), a 3854-piece model from 2021, replicates the Cat D11 dozer. Its construction uses modular sections, mirroring the actual machine's assembly. A new large track element features in the set, designed for adjustable tension. Control of the bulldozer is achieved via the CONTROL+ app. This app facilitates movement, allowing driving, steering, and manipulation of the blade to raise, lower, and tilt it. The ripper and ladder also raise and lower, showcasing realistic engineering functions. This model provides an exploration of construction technology.

Parts Inventory

🧱 3854 parts

Part	Color	Qty	LEGO price each
Plate 3 x 3 11212	Light Bluish Gray	1×	€0,12 View at LEGO → View
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle 11214	Red	84×	€0,29 View at LEGO → View
Slope Curved 2 x 1 No Studs [1/2 Bow] 11477	Light Bluish Gray	1×	€0,06 View at LEGO → View
Technic Beam 1 x 5 Thin with Axle Holes on Ends 11478	Black	14×	€0,25 View at LEGO → View
Technic Beam 1 x 5 Thin with Axle Holes on Ends 11478	Yellow	35×	€0,25 View at LEGO → View
Technic Panel Fairing #21 5L Small Smooth, Side B 11946	Black	2×	€0,38 View at LEGO → View
Technic Panel Fairing #21 5L Small Smooth, Side B 11946	Yellow	2×	€0,38 View at LEGO → View
Technic Panel Fairing #22 5L Small Smooth, Side A 11947	Black	2×	€0,38 View at LEGO → View
Technic Panel Fairing #22 5L Small Smooth, Side A 11947	Yellow	2×	€0,38 View at LEGO → View
Technic Panel Curved 11 x 3 with 10 Pin Holes through Panel Surface 11954	Yellow	4×	Check price → View
Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner Ring 13971	Light Bluish Gray	2×	€0,21 View at LEGO → View
Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes] 14720	Yellow	3×	€0,36 View at LEGO → View

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Repairability

Can you fix Cat D11 Bulldozer if a piece goes missing?

3%Low repair risk

easy to fixguard this box

7 of the 231 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.

Theme average

6.5%

All sets

6.7%

Hardest to replace

Technic Link Tread 7L Wide · Yellow · only this setSticker Sheet for Set 42131-1 · Unknown · only this setTechnic Gear Rack 1 x 14 x 2 Housing · Dark Bluish Gray · 2 sets ever

How we calculate this →