4x4 X-treme Off-Roader (42099): parts list and STL files

Set 42099, 4x4 X-treme Off-Roader, from 2019, has 958 pieces in 145 kinds of part and colour. Here is every part, with the ones you can 3D print at home and the ones to buy.

Get the free print files

Free: an STL file for every part you can print, the parts list and a BrickLink shopping list for the rest. Pro adds print-ready plates for a 256 mm bed and our printing guide. About ProYour Pro includes the print-ready plates.

Need filament? Find PLA on Amazon. We may earn a commission if you buy.

4x4 X-treme Off-Roader, built (3D picture) — What it looks like built. A 3D picture, not a photo, made from the LDraw model by Philippe Hurbain (CC BY 2.0).

See the finished set (photo) on Rebrickable ↗

Buy the real set on Amazon ↗ We may earn a commission if you buy.

903to print

55to buy

12spares

145kinds

903 to print, 55 to buy, 12 spares. Print: plain bricks, plates and beams you can make on a home 3D printer. Buy: clear, printed, rubber, electric and very thin parts, which are better ordered. Spares are the extras in the box.

Every part in set 42099

Parts in set 42099, 4x4 X-treme Off-Roader
Colour	Part	Qty	Print or buy
Black	2780 Pin with Friction Ridges Lengthwise and Center Slots	144	Print
Blue	6558 Pin Long with Friction Ridges Lengthwise, 2 Center Slots	76	Print
Blue	43093 Axle Pin with Friction Ridges Lengthwise	54	Print
Black	32054 Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]	40	Print
Red	11214 Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle	30	Print
Red	32062 Axle 2 Notched	29	Print
Black	6536 Axle and Pin Connector Perpendicular	26	Print
Light Bluish Gray	4519 Axle 3	23	Print
Black	32140 Beam 2 x 4 L-Shape Thick	21	Print
Blue	4274 Pin 1/2 without Friction Ridges	18	Print
White	18654 Pin Connector Round 1L [Beam]	17	Print
Black	32013 Axle and Pin Connector Angled #1	14	Print
Orange	60483 Beam 1 x 2 Thick with Pin Hole and Axle Hole	14	Print
Black	63869 Axle and Pin Connector Perpendicular Triple	13	Print
Black	25214 Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end	12	Print
Dark Bluish Gray	32316 Beam 1 x 5 Thick	12	Print
Dark Bluish Gray	6632 Beam 1 x 3 Thin	12	Print
Dark Bluish Gray	32526 Beam 3 x 5 L-Shape Thick	11	Print
Black	18654 Pin Connector Round 1L [Beam]	10	Print
Black	3705 Axle 4	10	Print
Black	42003 Axle and Pin Connector Perpendicular 3L with 2 Pin Holes	10	Print
Red	6628 Pin with Friction Ridges Lengthwise and Towball	10	Print
Black	32525 Beam 1 x 11 Thick	9	Print
Reddish Brown	24316 Axle 3 with Stop	8	Print
Black	32278 Beam 1 x 15 Thick	8	Print
Light Bluish Gray	52731 Steering / CV Ball Joint Male 3L	8	Print
Light Bluish Gray	32524 Beam 1 x 7 Thick	7	Print
Light Bluish Gray	60484 Beam 3 x 3 T-Shape Thick	7	Print
Dark Bluish Gray	87083 Axle 4 with Stop	7	Print
Black	11478 Beam 1 x 5 Thin with Axle Holes on Ends	6	Print
Tan	18575 Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]	6	Print
Black	18651 Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle	6	Print
Tan	32556 Pin Long without Friction Ridges	6	Print
Light Bluish Gray	3713 Bush	6	Print
Black	3737 Axle 10	6	Print
Red	41677 Beam 1 x 2 Thin	6	Print
Tan	6589 Gear 12 Tooth Bevel	6	Print
Black	6629 Beam 1 x 9 Bent (6 - 4) Thick	6	Print
Light Bluish Gray	87082 Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Big Squared Pin Holes]	6	Print
Black	32034 Axle and Pin Connector Angled #2 - 180°	5	Print
Yellow	32073 Axle 5	5	Print
Light Bluish Gray	32184 Axle and Pin Connector Perpendicular 3L with Centre Pin Hole	5	Print
Black	32270 Gear 12 Tooth Double Bevel	5	Print
Black	39793 Connector Beam 3 x 3	5	Print
Light Bluish Gray	48989 Pin Connector Hub Perpendicular 3L with 4 Pins	5	Print
Tan	99008 Axle 4 with Centre Stop	5	Print
Blue	15100 Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise	4	Print
Black	32009 Beam 1 x 11.5 Double Bent Thick	4	Print
Black	32126 Axle and Pin Connector Toggle Joint Smooth	4	Print
Black	32192 Axle and Pin Connector Angled #4 - 135°	4	Print
Black	32291 Axle and Pin Connector Perpendicular Double	4	Print
Lime	32523 Beam 1 x 3 Thick	4	Print
Bright Light Orange	32523 Beam 1 x 3 Thick	4	Print
Dark Bluish Gray	40490 Beam 1 x 9 Thick	4	Print
Black	41677 Beam 1 x 2 Thin	4	Print
Orange	41678 Axle and Pin Connector Perpendicular Double Split	4	Print
Red	42003 Axle and Pin Connector Perpendicular 3L with 2 Pin Holes	4	Print
Light Bluish Gray	46490 Steering Wheel Hub with Planetary Gear Reduction	4	Print
Dark Bluish Gray	52730 Steering / CV Ball Joint Female with 3L Axle	4	Print
Dark Bluish Gray	57515 Steering Arm 5.5 x 2 with Towball Socket Rounded, Chamfered	4	Print
Black	11954 Panel Curved 11 x 3 with 10 Pin Holes Through Panel Surface	3	Print
Bright Light Orange	15458 Panel 3 x 11 x 1	3	Print
Orange	32054 Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]	3	Print
Dark Bluish Gray	41239 Beam 1 x 13 Thick	3	Print
Light Bluish Gray	64178 Beam 5 x 11 with 3 x 5 Opening Frame Thick	3	Print
Light Bluish Gray	14720 Beam 3 x 5 Thick [90° Offset Centre Beam Holes]	2	Print
Black	18938 Turntable Large Type 3 Top, 60 Tooth	2	Print
Light Bluish Gray	18939 Turntable Large Type 3 Base	2	Print
Bright Light Orange	18945 Panel 5 x 11 x 1 Tapered	2	Print
Red	22961 Pin Connector Hub with 1 Axle	2	Print
Light Bluish Gray	24116 Panel Curved and Bent 6 x 3	2	Print
Light Bluish Gray	2736 Axle Towball	2	Print
Light Bluish Gray	3023 Plate 1 x 2	2	Print
Tan	32002 Pin 3/4	2	Print
Bright Light Orange	32009 Beam 1 x 11.5 Double Bent Thick	2	Print
Black	32014 Axle and Pin Connector Angled #6 - 90°	2	Print
Light Bluish Gray	32015 Axle and Pin Connector Angled #5 - 112.5°	2	Print
Light Bluish Gray	32034 Axle and Pin Connector Angled #2 - 180°	2	Print
Yellow	32039 Axle Connector with Axle Hole	2	Print
Light Bluish Gray	32123b Bush 1/2 Smooth with Axle Hole Semi-Reduced	2	Print
Bright Light Orange	32278 Beam 1 x 15 Thick	2	Print
Black	33299b Beam 3 x 0.5 Liftarm with Boss and Pin Semi-Reduced	2	Print
Black	3706 Axle 6	2	Print
Black	3710 Plate 1 x 4	2	Print
Black	4032a Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	2	Print
Black	48729b Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]	2	Print
Light Bluish Gray	62462 Pin Connector Round [Slotted]	2	Print
Bright Light Orange	62531 Panel Curved 11 x 3 with 2 Pin Holes through Panel Surface	2	Print
Light Bluish Gray	63869 Axle and Pin Connector Perpendicular Triple	2	Print
Black	64179 Beam Frame 5 x 7 with 3 x 5 Opening Thick	2	Print
Yellow	99773 Beam Triangle Thin [Type II]	2	Print
Black	11946 Panel Fairing #21 5L Small Smooth, Side B	1	Print
Black	11947 Panel Fairing #22 5L Small Smooth, Side A	1	Print
Black	15458 Panel 3 x 11 x 1	1	Print
White	18948 Driving Ring Connector	1	Print
Light Bluish Gray	22961 Pin Connector Hub with 1 Axle	1	Print
Light Bluish Gray	2819 Steering Wheel Small (3 Studs Diameter)	1	Print
Dark Azure	32140 Beam 2 x 4 L-Shape Thick	1	Print
Yellow	32184 Axle and Pin Connector Perpendicular 3L with Centre Pin Hole	1	Print
Bright Light Orange	32316 Beam 1 x 5 Thick	1	Print
White	32316 Beam 1 x 5 Thick	1	Print
Red	3708 Axle 12	1	Print
Red	3737 Axle 10	1	Print
Blue	43857 Beam 1 x 2 Thick	1	Print
Light Bluish Gray	44294 Axle 7	1	Print
Red	49283 Wire Clip with Axle Hole	1	Print
White	49283 Wire Clip with Axle Hole	1	Print
Blue	49283 Wire Clip with Axle Hole	1	Print
Dark Bluish Gray	59426 Axle 5.5 with Stop [Rounded Short End]	1	Print
Orange	59443 Axle Connector Smooth [with x Hole + Orientation]	1	Print
Bright Light Orange	64392 Panel Fairing #17 Large Smooth, Side A	1	Print
Bright Light Orange	64682 Panel Fairing #18 Large Smooth, Side B	1	Print
Bright Light Orange	64782 Panel 5 x 11 x 1	1	Print
Bright Light Orange	87080 Panel Fairing #1 Small Smooth Short, Side A	1	Print
Bright Light Orange	87086 Panel Fairing #2 Small Smooth Short, Side B	1	Print
Black	87761 Gear Rack 1 x 7 with Axle and Pin Holes	1	Print
Black	18654 Pin Connector Round 1L [Beam]	1 spare	Print
White	18654 Pin Connector Round 1L [Beam]	1 spare	Print
Black	2780 Pin with Friction Ridges Lengthwise and Center Slots	1 spare	Print
Tan	32002 Pin 3/4	1 spare	Print
Light Bluish Gray	32123b Bush 1/2 Smooth with Axle Hole Semi-Reduced	1 spare	Print
Light Bluish Gray	3713 Bush	1 spare	Print
Blue	4274 Pin 1/2 without Friction Ridges	1 spare	Print
Black	48729b Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]	1 spare	Print
Trans-Clear	3070b Tile 1 x 1 with Groove	10	Buy
Black	32005a Link 1 x 6 without Stoppers	8	Buy
Trans-Clear	3023 Plate 1 x 2	6	Buy
Black	15038 Wheel 56 x 34 Racing Medium with 6 Pin Holes	4	Buy
Black	23798 Tyre 107 x 44 Tractor	4	Buy
Red	76537 Shock Absorber 6.5L with Hard Spring, Tight Coil in Middle [Complete Assembly]	4	Buy
Dark Bluish Gray	22172 Motor, XL, Powered Up	2	Buy
Trans-Clear	2654 Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	2	Buy
Trans-Red	3023 Plate 1 x 2	2	Buy
Trans-Red	3024 Plate 1 x 1	2	Buy
Trans-Clear	3069b Tile 1 x 2 with Groove	2	Buy
Trans-Orange	3070b Tile 1 x 1 with Groove	2	Buy
Dark Bluish Gray	62821b Gear Differential with Inner Tabs and Closed Center, 28 Bevel Teeth [Beveled Edge]	2	Buy
Black	75c14 Hose Rigid 3mm D. 14L / 11.2cm	2	Buy
Light Bluish Gray	22127 Hub, Powered Up 4-Port (Control+) - Clip Opening	1	Buy
Dark Bluish Gray	22169 Motor, Large, Powered Up	1	Buy
[No Color/Any Color]	51341 Sticker Sheet for Set 42099-1	1	Buy
Trans-Red	3024 Plate 1 x 1	1 spare	Buy
Trans-Orange	3070b Tile 1 x 1 with Groove	1 spare	Buy
Trans-Clear	3070b Tile 1 x 1 with Groove	1 spare	Buy
Black	75c14 Hose Rigid 3mm D. 14L / 11.2cm	1 spare	Buy

Print set 42099 at home

The set tool makes an STL file for each of the 903 printable pieces, sorted by colour, plus a shopping list for the 55 to buy. Free, no account, and it runs on your own phone or computer.

Get the free print files

Pro adds print-ready plates for a 256 mm bed. About Pro

Parts data: Rebrickable, and it can differ slightly from your box. Part shapes: LDraw Parts Library (CC BY 4.0). Browse all sets. Independent project, not sponsored, authorised or endorsed by any brick company.