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Sets
Bionicle
Matoran
Thulox

8931 LEGO Bionicle Matoran Thulox

Name: LEGO Bionicle Matoran Thulox
Brand: LEGO
SKU: 8931-1
Availability: InStock
Rating: 4.70 (40 reviews)

Images 4Description 1

LEGO 8931 Thulox is a Bionicle set from 2007 currently valued at $34 for new and sealed sets. Originally retailing for $4.99, the set has gained 576% in value since retiring in September 2008, with annual appreciation averaging 8.06%. On the used market, values range from $15 to $21 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Thulox since June 2016. Very high accuracy

LEGO 8931 Thulox is a Bionicle Matoran set released in 2007, containing 39 pieces. It builds Thulox, a red Hydruka from Mahri Nui who assists the Matoran by harvesting fields of air. The model includes a solidified air bubble launcher with sphere ammunition and features dark red and black armor elements. As part of the Hydruka team, Thulox represents the undersea allies of the Matoran in the 2007 Mahri Nui storyline.

A new and sealed Thulox is currently valued at around $34, with annual growth of approximately 8%, which is higher than other Matoran sets. The average used price is $18 for those in good overall condition. New and sealed listings currently range from $45 to $65. Based on current trends, this set could be valued near $36 within the next year. The set was available for 11 months, from October 2007 to September 2008.

All regions

All regions 4
United States 3
European Union 1

For Sale (New/Sealed)

	(GR) RARE 2007 LEGO BIONICLE 8931 THULOX NEW SEALED	$39.99 +18.5%
	(US) BIONICLE Thulox 8931 New Unopened Set	BrickEconomy Choice $44.99 +33.3%
	(US) Bionicle Thulox 8931 [39 pieces] Sealed MISB Free Shipping	$49.99 +48.1%
	(US) BIONICLE: Thulox (8931)	$65.00 +92.6%

All regions

All regions 6
United States 4
European Union 2

For Sale (Used)

	(NL) Used - Bionicle Matoran Of Mahri Nui Dekar Defilak Morak Thulox 8929 8930 8931 893	$15.70 --11.5%
	(NL) Used - Bionicle Matoran Of Mahri Nui Dekar Defilak Morak Thulox 8929 8930 8931 893	$16.03 --9.6%
	(US) Used - BIONICLE: Hydruka Thulox (8931) 2007 100% Complete w/ Instructions	$18.95
	(US) Used - Bionicle Matoran Thulox (8931) Complete Figure	$18.95
	(US) Used - Bionicle Matoran Thulox (8931) Complete Figure W Balls And Instructions	$19.99
	(US) Used - Bionicle Matoran Thulox 8931 - Complete Figure Hydruka Mahri Nui 2007	$19.99

Sale Trends

This chart shows the sales trends (number sold) of new/sealed 8931 Thulox.

Contained In Sets


	66187 Bionicle Tripack Theme / Subtheme Bionicle / Value Packs Year 2007 Pieces 192 Availability Retired	Retail $19.99 Value $502.88 Growth +2415.7% Annual growth 15.2% I own this set I want this set

	66235 Bionicle Co-Pack Theme / Subtheme Bionicle / Value Packs Year 2007 Pieces 192 Availability Retired	Retail $19.99 Value $500.00 Growth +2401.3% Annual growth 15.2% I own this set I want this set

Sets in Bionicle / Matoran


	8932 Morak Theme / Subtheme Bionicle / Matoran Year 2007 Pieces 40 Availability Retired Buy this set at Amazon eBay	Retail $4.99 Value $47.59 Growth +853.7% Annual growth 8.8% I own this set I want this set

	8929 Defilak Theme / Subtheme Bionicle / Matoran Year 2007 Pieces 37 Availability Retired Buy this set at Amazon eBay	Retail $4.99 Value $51.99 Growth +941.9% Annual growth 7.1% I own this set I want this set

	8930 Dekar Theme / Subtheme Bionicle / Matoran Year 2007 Pieces 37 Availability Retired Buy this set at eBay Bricklink	Retail $4.99 Value $62.18 Growth +1146.1% Annual growth 9.5% I own this set I want this set

	8723 Piruk Theme / Subtheme Bionicle / Matoran Year 2006 Pieces 27 Availability Retired Buy this set at Amazon eBay Bricklink	Retail $3.99 Value $44.53 Growth +1016.0% Annual growth 9.4% I own this set I want this set

	8722 Kazi Theme / Subtheme Bionicle / Matoran Year 2006 Pieces 25 Availability Retired Buy this set at Amazon eBay	Retail $3.99 Value $47.44 Growth +1089.0% Annual growth 7.7% I own this set I want this set

	8726 Dalu Theme / Subtheme Bionicle / Matoran Year 2006 Pieces 25 Availability Retired Buy this set at eBay StockX Bricklink	Retail $3.99 Value $17.25 Growth +332.3% Annual growth 6.0% I own this set I want this set

	8725 Balta Theme / Subtheme Bionicle / Matoran Year 2006 Pieces 22 Availability Retired Buy this set at eBay Bricklink	Retail $3.99 Value $19.99 Growth +401.0% Annual growth 6.1% I own this set I want this set

	8721 Velika Theme / Subtheme Bionicle / Matoran Year 2006 Pieces 21 Availability Retired Buy this set at eBay	Retail $3.99 Value $32.32 Growth +710.0% Annual growth 5.1% I own this set I want this set

	8724 Garan Theme / Subtheme Bionicle / Matoran Year 2006 Pieces 21 Availability Retired Buy this set at eBay	Retail $3.99 Value $37.37 Growth +836.6% Annual growth 5.4% I own this set I want this set

	8947 Radiak Theme / Subtheme Bionicle / Matoran Year 2008 Pieces 16 Availability Retired Buy this set at eBay	Retail $6.99 Value $62.68 Growth +796.7% Annual growth 13.4% I own this set I want this set

	8944 Tanma Theme / Subtheme Bionicle / Matoran Year 2008 Pieces 14 Availability Retired Buy this set at eBay Bricklink	Retail $6.99 Value $47.92 Growth +585.6% Annual growth 5.9% I own this set I want this set

	8945 Solek Theme / Subtheme Bionicle / Matoran Year 2008 Pieces 14 Availability Retired Buy this set at eBay	Retail $6.99 Value $51.85 Growth +641.8% Annual growth 7.1% I own this set I want this set

	8946 Photok Theme / Subtheme Bionicle / Matoran Year 2008 Pieces 14 Availability Retired Buy this set at eBay	Retail $6.99 Value $46.81 Growth +569.7% Annual growth 6.5% I own this set I want this set

	8948 Gavla Theme / Subtheme Bionicle / Matoran Year 2008 Pieces 14 Availability Retired Buy this set at eBay	Retail $6.99 Value $50.56 Growth +623.3% Annual growth 6.8% I own this set I want this set

	8949 Kirop Theme / Subtheme Bionicle / Matoran Year 2008 Pieces 14 Availability Retired Buy this set at eBay	Retail $6.99 Value $61.53 Growth +780.3% Annual growth 6.9% I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

8931-1

Name

Thulox

Theme

Bionicle

Subtheme

Matoran

Year

2007

Released

October 24, 2007

Retired

September 11, 2008

Availability

Retired

Pieces

39 (PPP $0.13)

Set Pricing

Retail price

$4.99

New/Sealed

Value

$33.75

Growth

+576.35%

Annual growth

+8.06%

2025 growth

+6.19%

90-day change

-7.34%

Used

Value

$17.74

Range

$15.36 - $21.28

Quick Buy

eBay

Buy

Lowest price

$39.99

Highest price

$65.00

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$33.75

1 year forecast

$36.25+7.41%

5 year forecast

$44.12+30.73%

$43

$45

8931 Thulox is projected to be valued between $43 - $45 within five years.

Insights

Released in 2007 and retired in 2008, Thulox (set 8931) is a niche Matoran-era Bionicle creature whose post-retirement scarcity and era-specific nostalgia have supported steady sealed-copy appreciation, and its limited-run status and low remake risk are positive while non-iconic recognition constrains upside.

Set Facts

Set 8931 features Thulox, a red Hydruka native to Mahri Nui, who assists the Matoran by harvesting fields of air.
The set includes a solidified air bubble launcher and sphere ammunition as its primary feature.
Thulox is part of a team of Hydruka, undersea creatures that serve as allies to the Matoran.
Thulox primarily features dark red armor and black armor separated by a new armor piece.
The set is contained in 66187 Bionicle Tripack
The set is contained in 66235 Bionicle Co-Pack

Regional Retail Prices (LEGO.com/Store)

United States

$4.99

United Kingdom

£3.99

Barcodes

UPC

673419090643

Thulox Reviews

40 reviews

4.7

Collectors

Investors

BZPower

“The smaller sets are improving greatly since their start all those years ago with the Turaga. I would highly recommend picking up at least one of the Hydruka, Thulox or his blue partner, Morak, not just from a collection stand point but just to see how well the designers... More have done. Sure, he has his flaws, but Thulox is a great set when you take into consideration it's only a small one.”

Full review at www.bzpower.com

Brickset

“This really is a pretty decent little set. It comes with some pretty nice claw pieces that are great for MOCs and the air bubble launcher can be used on pretty much any Bionicle and look great. The build itself is okay as I remember. It mainly consisted of just attaching the... More limbs to the body. Nothing special but, it makes it more fun for a kid ot play with. Before you go after me about the title, think about the story of these things.”

Full review at brickset.com

Subtheme Analysis

Bionicle / Matoran

Sets

Years

2001 - 2008

Lifespan

10 mos (this set 11 mos)

Annual growth

+6.35% (this set +8.06%)

This set's annual growth (CAGR) vs. subtheme

Community Stats

Thulox currently ranks #13 out of the top most owned sets in Bionicle Matoran.

#1Tanma

#2Solek

#3Dekar

#4Jala

#5Photok

#13Thulox

#14Ehrye

#15Nuhrii

About Bionicle Matoran

The Matoran are BIONICLE citizens and are smaller than Toa warriors. There are several types of Matoran including Ko-Matoran, Ga-Matoran, Ta-Matoran, Le-Matoran, Onu-Matoran, Po-Matoran, and Av-Matoran. Various Matoran characters were made into more significant characters some even becoming Toa. If a Matoran from each Metru or Koro wish to combine their bodies they can form a being called a Matoran Nui.

Matoran consists of 35 sets that ran from 2001 to 2008. As of today, 8546 Bionicle Power Pack is the most valuable Matoran set with an estimated new/factory sealed value of $177.

Summary

Bionicle Matoran Thulox set 8931 was released on October 24, 2007, retailing for $5, it has since been retired. New, unopened sets are valued at $34, used ones can be found for $18.

One of a team of hydruka, native undersea creatures that serve the Matoran of Mahri Nui, Thulox's job is to harvest the fields of air. When threatened, he fires spheres of solidified air from his launcher!

Set Pricing Models

BrickEconomy uses a number of methods to determine the value of a set.

New/Sealed

Machine Learning/AI Model

Value (today)

$33.75

Value (in a year)

$36.25

Value (in 2 years)

$38.49

Accuracy

0.920300 High

Statistical Model

Value (today)

$47.37

Value (in a year)

$50.38

Value (in two years)

$53.40

Accuracy

0.575492 Medium

Used

Machine Learning/AI Model

Value (today)

$17.74

Value (low range)

$15.36

Value (high range)

$21.28

Accuracy

0.865300 High

To learn more about how we calculate pricing and forecasting, check out our article on BrickEconomy’s Approach to LEGO Pricing and Future Value Predictions.

Region · United States (USD)

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