How many pieces are in the ETX Alien Infiltrator?

ETX Alien Infiltrator contains 333 pieces.

When was the ETX Alien Infiltrator released?

ETX Alien Infiltrator was released in 2008.

🏛 Mars Mission

Set #7646

ETX Alien Infiltrator

The ETX Alien Infiltrator is a standout set from the Mars Mission theme.

Before you buy

Who it's for: Intermediate build Great for kids and teens interested in space themes and engaging in imaginative play scenarios.
Build: 333 pieces · about 3 hours Build time is an estimate.
Price: $29.99 list price · 9.0¢ per piece
Availability: Retired at LEGO

★★★★☆ 4.1 AI-generated review score, not a customer rating

Fans appreciate the unique alien vehicle design and the inclusion of multiple minifigures, making it great for play. However, some find the color scheme a bit repetitive and the overall build somewhat simple for the price.

$29.99

Best Price

$26.99

You Save

10% OFF

📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

The ETX Alien Infiltrator is a standout set from the Mars Mission theme. It perfectly captures the sci-fi aesthetic of humans versus aliens on Mars, featuring a unique design for the alien vehicle and a great selection of minifigures that add to the playability and collectibility.

This set is perfect for LEGO fans who enjoy space themes and imaginative play. The build is engaging without being overly complex, making it accessible to a wide range of ages, and the finished model is sturdy enough for dynamic play scenarios.

Skip this if you prefer realistic builds or are looking for a massive, intricate model. While charming, its smaller size and focus on play over pure display may not appeal to builders seeking a more challenging project; consider larger Star Wars sets for more complex builds.

✨ New

Ask BlockTalk about this set

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BlockTalk

Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the ETX Alien Infiltrator - building tips, investment potential, comparisons, or anything else!

Try asking:

How does this set compare to other Mars Mission sets in terms of design and playability? What are the best ways to display this set to highlight its unique features? Is the current price a good value considering its rarity and condition? Can the alien vehicle be easily modified to fit different themes or scenarios?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

333

Pieces

⏱

Estimated Build Time

📊

Intermediate

Difficulty

Build Highlights:

Unique alien vehicle design
Fun SNOT (Studs Not On Top) techniques used for shaping
Incorporation of trans-neon green elements for an otherworldly feel
Sturdy construction for playability

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

↑ Trending up since release

B+

Investment Grade

⏳ Retired

The ETX Alien Infiltrator has shown steady price appreciation since its retirement, driven by the popularity of the Mars Mission theme and its distinctive alien designs. While not the most sought-after set, its rarity and condition contribute to its value. The rising price trend suggests continued growth, but potential investors should be mindful of market fluctuations and the availability of complete, boxed sets.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

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Alien Avenger

Blacktron II • 226 pcs

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Compared to other Mars Mission sets like the MT-35 Trike (7699-1) or the Exploration Launcher (7645-1), the ETX Alien Infiltrator offers a distinct alien-focused perspective. While the Exploration Launcher focuses on the human side, the Infiltrator provides a fun, albeit smaller, build with a unique alien vehicle. Collectors interested in the Martian side of the conflict may prefer this set.

4 Minifigures Included

Mars Astronaut, Smirk / Scared

5 parts

Martian, Alien Commander

Mars Astronaut, Printed Hair

5 parts

B+

The set includes four minifigures: two Mars Astronauts and two Martians, including an Alien Commander. The Martian Commander is particularly unique, adding to the set's collectibility.

📦 Parts Inventory

Piece count: 333
Parts cataloged in this inventory: 109 unique parts, 315 pieces
Minifigures: 4

The piece count includes the 18 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Tile Special 1 x ...

Part #: 2412b 5× Orange

Wedge Plate 3 x 6...

Part #: 2419 2× Black

Plate 2 x 2 Corner

Part #: 2420 2× White

Part #: 2432 1× White

Plate Special 1 x...

Part #: 2540 2× Orange

Plate Special 1 x...

Part #: 2540 1× Dark Bluish Gray

Bar 8L - Two Stop...

Part #: 2714a 2× Black

Technic Pin with ...

Part #: 2780 6× Black

Part #: 30153 4× Trans-Neon Green

Equipment Binoculars

Part #: 30162 1× Dark Bluish Gray

Plate 2 x 4

Part #: 3020 5× Black

Plate 2 x 3

Part #: 3021 2× White

Plate 2 x 2

Part #: 3022 6× Orange

Plate 2 x 2

Part #: 3022 2× Red

Tool Jackhammer /...

Part #: 30228 1× Dark Bluish Gray

Plate 1 x 2

Part #: 3023 3× Black

Plate 1 x 2

Part #: 3023 5× Lime

Brick Special 1 x...

Part #: 30237a 4× Black

Plate 4 x 4

Part #: 3031 4× Lime

Plate 4 x 8

Part #: 3035 2× Black

Tile Special 2 x ...

Part #: 30350b 1× Black

Bar 1 x 8 with Br...

Part #: 30359b 6× Black

Hinge Brick 1 x 2...

Part #: 30364 4× Black

Hinge Brick 1 x 2...

Part #: 30365 4× Dark Bluish Gray

Hinge Plate 1 x 2...

Part #: 30383 2× Dark Bluish Gray

Brick Sloped 45° ...

Part #: 3039 2× Black

Brick Special 1 x...

Part #: 30414 2× White

Brick Sloped 45° ...

Part #: 3045 2× White

Brick Sloped 45° ...

Part #: 3048b 2× White

Plate Round Corne...

Part #: 30565 2× Lime

Brick Round 1 x 1...

Part #: 3062b 14× Trans-Red

Fairing 1 x 4 Sid...

Part #: 30647 2× Black

Tile 2 x 2 with G...

Part #: 3068b 2× White

Tile 2 x 2 with G...

Part #: 3068b 1× Black

Tile 1 x 2 with G...

Part #: 3069b 5× Black

Technic Brick 1 x...

Part #: 32000 1× Dark Bluish Gray

Technic Axle and ...

Part #: 32014 1× Black

Technic Pin Long ...

Part #: 32054 2× Red

Technic Beam 1 x ...

Part #: 32316 4× White

Brick 1 x 2 x 2 w...

Part #: 3245b 2× White

Technic Pin Conne...

Part #: 32530 2× Black

Technic Gear 8 Tooth

Part #: 3647 1× Dark Bluish Gray

Brick Sloped 65° ...

Part #: 3678b 2× White

Turntable 2 x 2 P...

Part #: 3679 2× Light Bluish Gray

Turntable 2 x 2 P...

Part #: 3680 2× Black

Technic Brick 1 x...

Part #: 3700 1× White

Technic Brick 1 x...

Part #: 3701 4× Dark Bluish Gray

Plate 1 x 4

Part #: 3710 1× Orange

Plate 1 x 4

Part #: 3710 4× Lime

Brick Sloped Inve...

Part #: 3747b 4× Black

Plate Special 1 x...

Part #: 3794a 3× White

Part #: 3795 2× Black

Plate 2 x 10

Part #: 3832 2× Black

Plate Special 1 x...

Part #: 3839b 1× Black

Tool Pickaxe

Part #: 3841 1× Dark Bluish Gray

Technic Brick 1 x...

Part #: 3894 2× Black

Weapon Gun / Torc...

Part #: 3959 1× Light Bluish Gray

Large Figure Weap...

Part #: 40340 1× Black

Animal Body Part ...

Part #: 40378 2× Lime

Animal Body Part ...

Part #: 40379 2× Lime

Plate Special 1 x...

Part #: 4081b 2× White

Tile Round 2 x 2 ...

Part #: 4150 4× Black

Brick Curved 6 x 1

Part #: 42022 2× Black

Brick Wedged, Cur...

Part #: 42060 3× Black

Brick Wedged, Cur...

Part #: 42061 3× Black

Technic Pin 1/2 w...

Part #: 4274 16× Blue

Technic Axle Pin ...

Part #: 43093 2× Blue

Equipment Weapon,...

Part #: 4349 2× Dark Bluish Gray

Wedge Plate 3 x 2...

Part #: 43722 2× Black

Wedge Plate 3 x 2...

Part #: 43723 2× Black

Dish 3 x 3 Invert...

Part #: 43898 1× White

Hinge Plate 1 x 2...

Part #: 44302a 2× Black

Hinge Plate 1 x 4...

Part #: 44568 1× White

Flag 2 x 2 Trapez...

Part #: 44676 2× White

Equipment Metal D...

Part #: 4479 1× Black

Brick Arch 1 x 3

Part #: 4490 4× Black

Brick Wedged, Cur...

Part #: 45301 2× Black

Cone 1 x 1 [No To...

Part #: 4589 5× Trans-Dark Blue

Plate Special 1 x...

Part #: 4590 2× Dark Bluish Gray

Technic Worm Gear

Part #: 4716 1× Light Bluish Gray

Brick Special 1 x...

Part #: 4733 1× White

Technic Rotation ...

Part #: 47455 2× Black

Brick Curved 2 x ...

Part #: 47457 4× White

Technic Brick Spe...

Part #: 48169 2× Dark Bluish Gray

Technic Brick Spe...

Part #: 48171 2× Dark Bluish Gray

Brick Sloped Inve...

Part #: 4871 1× White

Bar 1L with Clip

Part #: 48729a 4× Black

Wheel Arch, Mudgu...

Part #: 50745 2× Black

Windscreen 6 x 6 ...

Part #: 50747 1× Trans-Orange

Brick Curved 3 x ...

Part #: 50950 2× White

Brick Curved 3 x ...

Part #: 50950 1× Black

Brick Special 1 x...

Part #: 52107 2× Black

Brick Sloped 30° ...

Part #: 54200 11× Lime

Flexible Ribbed H...

Part #: 57539 1× Orange

Flexible Ribbed H...

Part #: 57539 2× Black

Brick Round Corne...

Part #: 58846 2× Black

Technic Axle Conn...

Part #: 59443 1× Black

Plate Special 1 x...

Part #: 6019 1× Black

Plate Special 1 x...

Part #: 60470a 1× Light Bluish Gray

Plate 1 x 12

Part #: 60479 2× Red

Brick Curved 1 x ...

Part #: 6091 4× White

Tool Chainsaw Blade

Part #: 6117 1× Dark Bluish Gray

Launcher, Technic...

Part #: 61185 1× Dark Bluish Gray

Plate Round 1 x 1...

Part #: 6141 1× Trans-Dark Blue

Plate Round 1 x 1...

Part #: 6141 9× Lime

Plate Round 1 x 1...

Part #: 6141 3× Orange

Bar 6L with Round...

Part #: 61680 4× Light Bluish Gray

Sticker Sheet 2 f...

Part #: 63093 1× [No Color/Any Color]

Sticker Sheet 1 f...

Part #: 63508 1× [No Color/Any Color]

Technic Axle and ...

Part #: 6536 2× Black

Technic Brick 1 x...

Part #: 6541 4× White

Technic Pin Long ...

Part #: 6558 2× Blue

Brick Wedged, Ang...

Part #: 6564 1× Black

Brick Wedged, Ang...

Part #: 6565 1× Black

Hinge Plate 1 x 4...

Part #: 73983 2× White

The set contains a good selection of lime and trans-red elements, useful for MOC builders looking to add vibrant colors to their creations. The inclusion of Technic pins also allows for integration with other Technic models.

🛒 Where to Buy

LEGO (UK)

✓ In Stock

Compare on eBay →

£19.55

eBay

✓ In Stock

$26.99 →

Walmart

✓ In Stock

Compare on eBay →

$28.49

Target

✓ In Stock

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$29.99

LEGO (US)

✓ In Stock

Compare on eBay →

$29.99

LEGO (CA)

✓ In Stock

Compare on eBay →

$39.99

💎 Notable Parts

Trans-Neon Green Rock 1 x 1 Jewel / Gem 24 Facet (4x) $1.00

Lime Slope 30° 1 x 1 x 2/3 (Cheese Slope) (11x) $0.88

Trans-Red Brick Round 1 x 1 Open Stud (14x) $1.40

Est. BrickLink Part Value

$3.28

💡 MOC Potential

🚀 Larger Martian base or command center

🚗 Modified rover with enhanced armor and weapons

🤖 Alien mech suit for the Martian Commander

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 9 videos

3.0 /5

Mixed

0% positive

BlockTalk AI

The ETX Alien Infiltrator (7646-1) is part of the Mars Mission theme, which is viewed favorably by LEGO YouTubers. Ben Cossy considers Mars Mission to be among the greatest LEGO themes, while other reviewers like R.R. Slugger have revised their opinions to appreciate the theme more.

Lego Rewind- Mars Mission

Nick on Planet Ripple • 49.4K views Review

I Was WRONG About LEGO Mars Mission!

R.R. Slugger • 38.6K views Review

Every LEGO Mars Mission (2007-2008) Set Ranked

BatFlight Builds • 22.1K views Review

Community Sentiment

Based on 9 YouTube reviews

Not enough Reddit data

YouTube

3.0 /5

Mixed

0% positive

Positive

Mixed

Critical

BlockTalk AI Analysis

What the Community Says

3 YouTube reviews

BlockTalk AI Summary

Several YouTubers, including those on Planet Ripple and BatFlight Builds, have created content related to the Mars Mission theme. BatFlight Builds ranked all the sets from 2007-2008, indicating a comprehensive interest in the entire product line.