# LEGO 42099-1 — 4x4 X-treme Off-Roader (2019)

Source: https://www.brickmissing.com/sets/42099-1-4x4-x-treme-off-roader
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

The LEGO Technic 42099 4x4 X-treme Off-Roader delivers advanced remote control for rugged exploration. This 958-piece model incorporates a Smart Hub with three integrated motors, providing robust performance. Command the vehicle via the LEGO TECHNIC CONTROL+ app, which enables precise movement for driving, reversing, steering, accelerating, braking, and traversing obstacles. The app also offers real-time feedback, including a speed and tilt log, supporting skill development in its challenges. The off-roader features independent high-rise suspension and large wheels with chunky tires, engineered for diverse terrains. Complex gear mechanisms, alongside a fresh color scheme and intricate stickers, highlight its detailed construction.

## Set facts

- Set number: 42099-1
- Name: 4x4 X-treme Off-Roader
- Theme: Technic
- Released: 2019
- Pieces: 958
- Distinct part + colour lots: 133
- Build difficulty: intermediate
- Repairability: 8.3% of this set's lots are hard to replace (11 of 133 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (133 lots, 958 pieces)

Prices are the official LEGO Pick a Brick price per individual part, where LEGO publishes one.

| Qty | Part | Colour | Part no. | LEGO element ID | LEGO price each |
| ---: | --- | --- | --- | --- | --- |
| 30 | Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle | Red | 11214 | 6209519 | €0,29 |
| 6 | Technic Beam 1 x 5 Thin with Axle Holes on Ends | Black | 11478 | 6327028 | €0,25 |
| 1 | Technic Panel Fairing #21 5L Small Smooth, Side B | Black | 11946 | 6316923 | €0,38 |
| 1 | Technic Panel Fairing #22 5L Small Smooth, Side A | Black | 11947 | 6319983 | €0,38 |
| 3 | Technic Panel Curved 11 x 3 with 10 Pin Holes through Panel Surface | Black | 11954 | 6031916 | €1,00 |
| 2 | Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes] | Light Bluish Gray | 14720 | 6055519 | €0,36 |
| 4 | Wheel 56 x 34 Technic Racing Medium with 6 Pin Holes | Black | 15038 | 6284703 | €2,01 |
| 4 | Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise | Black | 15100 | 6203249 | — |
| 1 | Technic Panel 3 x 11 x 1 | Black | 15458 | 6080356 | €1,13 |
| 3 | Technic Panel 3 x 11 x 1 | Bright Light Orange | 15458 | 6275893 | — |
| 6 | Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] | Tan | 18575 | 6346517 | €0,36 |
| 6 | Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle | Black | 18651 | 6089119 | €0,08 |
| 10 | Technic Pin Connector Round 1L [Beam] | Black | 18654 | 6121485 | €0,05 |
| 17 | Technic Pin Connector Round 1L [Beam] | White | 18654 | 6177114 | €0,05 |
| 2 | Technic Turntable Large Type 3 Top, 60 Tooth | Black | 18938 | 6109283 | — |
| 2 | Technic Turntable Large Type 3 Base | Light Bluish Gray | 18939 | 6109285 | €1,04 |
| 2 | Technic Panel 5 x 11 x 1 Tapered | Bright Light Orange | 18945 | 6275894 | — |
| 1 | Technic Driving Ring Connector | White | 18948 | 6276052 | €0,23 |
| 1 | Hub, Powered Up 4-Port (Technic Control+) - Clip Opening | Light Bluish Gray | 22127 | 6142536 | — |
| 1 | Motor, Large, Powered Up | Dark Bluish Gray | 22169 | 6214085 | — |
| 2 | Motor, XL, Powered Up | Dark Bluish Gray | 22172 | 6214088 | — |
| 2 | Technic Pin Connector Hub with 1 Axle | Red | 22961 | 6167939 | €0,13 |
| 1 | Technic Pin Connector Hub with 1 Axle | Light Bluish Gray | 22961 | 6123815 | €0,13 |
| 4 | Tyre 107 x 44 Tractor | Black | 23798 | 6141782 | — |
| 2 | Technic Panel Curved and Bent 6 x 3 | Light Bluish Gray | 24116 | 6268004 | €0,71 |
| 8 | Technic Axle 3 with Stop | Reddish Brown | 24316 | 6135494 | €0,07 |
| 12 | Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end | Black | 25214 | 6179182 | €0,23 |
| 2 | Plate Round 2 x 2 with Rounded Bottom [Boat Stud] | Trans-Clear | 2654 | 6163901 | €0,12 |
| 2 | Technic Axle Towball | Light Bluish Gray | 2736 | 4211375 | €0,13 |
| 144 | Technic Pin with Friction Ridges Lengthwise and Center Slots | Black | 2780 | 278026 | — |
| 1 | Technic Steering Wheel Small (3 Studs Diameter) | Light Bluish Gray | 2819 | 4580510 | €0,34 |
| 2 | Plate 1 x 2 | Trans-Red | 3023 | 6514003 | €0,10 |
| 2 | Plate 1 x 2 | Light Bluish Gray | 3023 | 4211398 | €0,08 |
| 6 | Plate 1 x 2 | Trans-Clear | 3023 | 6514001 | €0,10 |
| 2 | Plate 1 x 1 | Trans-Red | 3024 | 6513963 | €0,06 |
| 2 | Tile 1 x 2 with Groove | Trans-Clear | 3069b | 6514223 | €0,07 |
| 2 | Tile 1 x 1 with Groove | Trans-Orange | 3070b | 6254252 | €0,06 |
| 10 | Tile 1 x 1 with Groove | Trans-Clear | 3070b | 6254254 | €0,06 |
| 2 | Technic Pin 3/4 | Tan | 32002 | 6013938 | €0,08 |
| 8 | Technic Link 1 x 6 without Stoppers | Black | 32005a | 4629921 | €0,22 |
| 2 | Technic Beam 1 x 11.5 Double Bent Thick | Bright Light Orange | 32009 | 6275882 | — |
| 4 | Technic Beam 1 x 11.5 Double Bent Thick | Black | 32009 | 6271152 | €0,39 |
| 14 | Technic Axle and Pin Connector Angled #1 | Black | 32013 | 6284699 | €0,08 |
| 2 | Technic Axle and Pin Connector Angled #6 - 90° | Black | 32014 | 6268905 | €0,22 |
| 2 | Technic Axle and Pin Connector Angled #5 - 112.5° | Light Bluish Gray | 32015 | 6271347 | €0,21 |
| 2 | Technic Axle and Pin Connector Angled #2 - 180° | Light Bluish Gray | 32034 | 6346487 | €0,11 |
| 5 | Technic Axle and Pin Connector Angled #2 - 180° | Black | 32034 | 6271869 | €0,11 |
| 2 | Technic Axle Connector with Axle Hole | Yellow | 32039 | 3203924 | — |
| 40 | Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] | Black | 32054 | 3205426 | — |
| 3 | Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] | Orange | 32054 | 4140428 | — |
| 29 | Technic Axle 2 Notched | Red | 32062 | 4142865 | €0,07 |
| 5 | Technic Axle 5 | Yellow | 32073 | 6130008 | €0,11 |
| 2 | Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced | Light Bluish Gray | 32123b | 6271165 | €0,04 |
| 4 | Technic Axle and Pin Connector Toggle Joint Smooth | Black | 32126 | 6457112 | €0,25 |
| 1 | Technic Beam 2 x 4 L-Shape Thick | Dark Azure | 32140 | 6534873 | €0,15 |
| 21 | Technic Beam 2 x 4 L-Shape Thick | Black | 32140 | 6271825 | €0,15 |
| 5 | Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole | Light Bluish Gray | 32184 | 6276969 | €0,12 |
| 1 | Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole | Yellow | 32184 | 6276974 | €0,12 |
| 4 | Technic Axle and Pin Connector Angled #4 - 135° | Black | 32192 | 6262897 | €0,19 |
| 5 | Technic Gear 12 Tooth Double Bevel | Black | 32270 | 4177431 | €0,18 |
| 8 | Technic Beam 1 x 15 Thick | Black | 32278 | 4542573 | €0,42 |
| 2 | Technic Beam 1 x 15 Thick | Bright Light Orange | 32278 | 6275898 | — |
| 4 | Technic Axle and Pin Connector Perpendicular Double | Black | 32291 | 6280394 | €0,15 |
| 1 | Technic Beam 1 x 5 Thick | White | 32316 | 4249021 | €0,19 |
| 1 | Technic Beam 1 x 5 Thick | Bright Light Orange | 32316 | 6203256 | €0,19 |
| 12 | Technic Beam 1 x 5 Thick | Dark Bluish Gray | 32316 | 4210686 | €0,19 |
| 4 | Technic Beam 1 x 3 Thick | Lime | 32523 | 6170474 | €0,10 |
| 4 | Technic Beam 1 x 3 Thick | Bright Light Orange | 32523 | 6418455 | €0,10 |
| 7 | Technic Beam 1 x 7 Thick | Light Bluish Gray | 32524 | 4495930 | €0,25 |
| 9 | Technic Beam 1 x 11 Thick | Black | 32525 | 6029578 | €0,33 |
| 11 | Technic Beam 3 x 5 L-Shape Thick | Dark Bluish Gray | 32526 | 4210753 | €0,24 |
| 6 | Technic Pin Long without Friction Ridges | Tan | 32556 | — | — |
| 2 | Technic Beam 3 x 0.5 Liftarm with Boss and Pin Semi-Reduced | Black | 33299b | 4563044 | — |
| 10 | Technic Axle 4 | Black | 3705 | 370526 | €0,08 |
| 2 | Technic Axle 6 | Black | 3706 | 370626 | €0,12 |
| 1 | Technic Axle 12 | Red | 3708 | 6147702 | €0,27 |
| 2 | Plate 1 x 4 | Black | 3710 | 371026 | €0,12 |
| 6 | Technic Bush | Light Bluish Gray | 3713 | 6275844 | €0,05 |
| 1 | Technic Axle 10 | Red | 3737 | 6130005 | €0,25 |
| 6 | Technic Axle 10 | Black | 3737 | 373726 | €0,25 |
| 5 | Technic Connector Beam 3 x 3 | Black | 39793 | 6265644 | €0,38 |
| 2 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Black | 4032a | 403226 | €0,06 |
| 4 | Technic Beam 1 x 9 Thick | Dark Bluish Gray | 40490 | 4645730 | €0,29 |
| 3 | Technic Beam 1 x 13 Thick | Dark Bluish Gray | 41239 | 4522937 | €0,39 |
| 4 | Technic Beam 1 x 2 Thin | Black | 41677 | 6338428 | €0,13 |
| 6 | Technic Beam 1 x 2 Thin | Red | 41677 | 6371442 | €0,13 |
| 4 | Technic Axle and Pin Connector Perpendicular Double Split | Orange | 41678 | 4173542 | — |
| 10 | Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes | Black | 42003 | 6273708 | €0,12 |
| 4 | Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes | Red | 42003 | 6273712 | €0,12 |
| 18 | Technic Pin 1/2 | Black | 4274 | 4143005 | €0,05 |
| 54 | Technic Axle Pin with Friction Ridges Lengthwise | Black | 43093 | 4206482 | €0,06 |
| 1 | Technic Beam 1 x 2 Thick | Black | 43857 | 6057802 | €0,12 |
| 1 | Technic Axle 7 | Light Bluish Gray | 44294 | 4211805 | €0,16 |
| 23 | Technic Axle 3 | Light Bluish Gray | 4519 | 4211815 | €0,05 |
| 4 | Technic Steering Wheel Hub with Planetary Gear Reduction | Light Bluish Gray | 46490 | 6275902 | — |
| 2 | Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] | Black | 48729b | 4289538 | — |
| 5 | Technic Pin Connector Hub Perpendicular 3L with 4 Pins | Light Bluish Gray | 48989 | 4225033 | — |
| 1 | Wire Clip with Axle Hole | White | 49283 | 6278194 | — |
| 1 | Wire Clip with Axle Hole | Red | 49283 | 6263067 | €0,29 |
| 1 | Wire Clip with Axle Hole | Black | 49283 | 6263071 | — |
| 1 | Sticker Sheet for Set 42099-1 | Unknown | 51341 | 6259025 | — |
| 4 | Technic Steering / CV Ball Joint Female 4L | Dark Bluish Gray | 52730 | 6261793 | €0,44 |
| 8 | Technic Steering / CV Ball Joint Male 3L | Light Bluish Gray | 52731 | 6262968 | €0,36 |
| 4 | Technic Steering Arm 5.5 x 2 with Towball Socket Rounded, Chamfered | Dark Bluish Gray | 57515 | 4523398 | — |
| 1 | Technic Axle 5.5 with Stop [Rounded Short End] | Dark Bluish Gray | 59426 | 4508553 | €0,11 |
| 1 | Technic Axle Connector Smooth [with x Hole + Orientation] | Orange | 59443 | 6143028 | €0,06 |
| 14 | Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole | Orange | 60483 | 6265128 | €0,07 |
| 7 | Technic Beam 3 x 3 T-Shape Thick | Light Bluish Gray | 60484 | 4552348 | €0,18 |
| 2 | Technic Pin Connector Round [Slotted] | Light Bluish Gray | 62462 | 6173127 | €0,06 |
| 2 | Technic Panel Curved 11 x 3 with 2 Pin Holes through Panel Surface | Bright Light Orange | 62531 | 6275897 | — |
| 2 | Technic Gear Differential with Inner Tabs and Closed Center, 28 Bevel Teeth [Beveled Edge] | Dark Bluish Gray | 62821b | 4525184 | €0,90 |
| 2 | Technic Axle and Pin Connector Perpendicular Triple | Light Bluish Gray | 63869 | 6331441 | €0,17 |
| 13 | Technic Axle and Pin Connector Perpendicular Triple | Black | 63869 | 6362991 | €0,17 |
| 3 | Technic Beam 5 x 11 with 3 x 5 Opening Frame Thick | Light Bluish Gray | 64178 | 4540797 | €1,26 |
| 2 | Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick | Black | 64179 | 6016154 | €0,91 |
| 1 | Technic Panel Fairing #17 Large Smooth, Side A | Bright Light Orange | 64392 | 6275895 | — |
| 1 | Technic Panel Fairing #18 Large Smooth, Side B | Bright Light Orange | 64682 | 6275896 | — |
| 1 | Technic Panel 5 x 11 x 1 | Bright Light Orange | 64782 | 6275892 | — |
| 26 | Technic Axle and Pin Connector Perpendicular | Black | 6536 | 6261371 | €0,10 |
| 76 | Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots | Black | 6558 | 4514553 | — |
| 6 | Technic Gear 12 Tooth Bevel | Tan | 6589 | 4565452 | €0,10 |
| 10 | Technic Pin with Friction Ridges Lengthwise and Towball | Red | 6628 | 6254216 | — |
| 6 | Technic Beam 1 x 9 Bent (6 - 4) Thick | Black | 6629 | 6279881 | €0,34 |
| 12 | Technic Beam 1 x 3 Thin | Dark Bluish Gray | 6632 | 6364452 | €0,25 |
| 2 | Hose Rigid 3mm D. 14L / 11.2cm | Black | 75c14 | 6434156 | €0,69 |
| 4 | Technic Shock Absorber 6.5L with Hard Spring, Tight Coil in Middle [Complete Assembly] | Red | 76537 | 6144791 | — |
| 1 | Technic Panel Fairing #1 Small Smooth Short, Side A | Bright Light Orange | 87080 | 6275900 | — |
| 6 | Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Big Squared Pin Holes] | Light Bluish Gray | 87082 | 4560175 | — |
| 7 | Technic Axle 4 with Stop | Dark Bluish Gray | 87083 | 6083620 | €0,07 |
| 1 | Technic Panel Fairing #2 Small Smooth Short, Side B | Bright Light Orange | 87086 | 6275901 | — |
| 1 | Technic Gear Rack 1 x 7 with Axle and Pin Holes | Black | 87761 | 6327430 | €0,82 |
| 5 | Technic Axle 4 with Centre Stop | Tan | 99008 | 4666999 | €0,10 |
| 2 | Technic Beam Triangle Thin [Type II] | Yellow | 99773 | 6331435 | €0,31 |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/42099-1-4x4-x-treme-off-roader
- Inventory data is based on official LEGO inventories via the Rebrickable catalog, updated daily.
- Part images, minifigure lists and related sets are on the set page: https://www.brickmissing.com/sets/42099-1-4x4-x-treme-off-roader