Iron Man Mark 37 - Hammerhead
sh231 · Marvel Super Heroes
Avengers / Iron Man 3 (House Party Protocol) · 2016 (Released in set 76048 Iron Skull Sub Attack)
Figure ID
sh231
Theme
Marvel Super Heroes
Year Released
2016 (Released in set 76048 Iron Skull Sub Attack)
Rarity
Uncommon to Rare. While not a limited convention exclusive, it only appeared in one mid-range set which has been retired for years, making it highly specific for suit collectors.
Head
Features a standard light flesh tone head (likely Tony Stark dual-sided face with smirk/angry HUD) obscured by the iconic two-piece Iron Man helmet. The faceplate is Pearl Gold with black eye outlines, and the helmet shell is bright orange.
Torso
Bright orange torso with intricate mechanical printing in silver, dark grey, and maroon. Back printing includes the power cell. Arms/hands are solid orange to match the deep-sea suit aesthetic.
Legs
Standard legs in bright orange. Printing on the hips and front of the legs features silver armor plating and mechanical detailing corresponding to the Mark 37 Hammerhead design.
Accessories
Usually includes clear blue round plates and power blast pieces for the hands/feet (though missing or not visible in the photo). The helmet features the opening faceplate mechanism.
Color Scheme
Primary Bright Orange with Pearl Gold faceplate. Accented with Silver, Dark Grey, and Dark Red/Maroon mechanical highlights.
Printing Details
High-quality pad printing typical of 2010s LEGO Marvel. Printing covers the front torso, back torso, and front legs. Detail alignment on this specific suit is critical due to the orange/silver contrast.
Variants
This is the only official LEGO variant of the Mark 37 Hammerhead suit. There are no known production variants other than third-party customs.
Condition Notes
Common wear points include the gold paint on the faceplate (susceptible to scratching) and 'neck crack' stress marks on the torso. The orange plastic is robust but can show UV fading if displayed in sunlight.
Estimated Value
Used: $18 - $25 USD. New/Mint: $30 - $45 USD. Prices vary based on the condition of the gold faceplate and completeness of accessories.
Price (New)
Originally included in set 76048 which retailed for $29.99 USD in 2016. The figure's value now represents nearly the entire original cost of the set.
Compatible Sets
76048 Iron Skull Sub Attack (2016).
Character Background
The Mark 37 (Hammerhead) is a Deep Sea Suit designed by Tony Stark as part of the Iron Legion/House Party Protocol. It is designed to withstand extreme pressure and low visibility underwater.
Design Notes
A notable achievement in color-specific suit design using orange instead of the traditional red. The print style stays true to the 'House Party Protocol' aesthetic seen in the Iron Man 3 film era.
Similar Minifigures
Iron Man Mark 39 (Starboost - sh229), Iron Man Mark 33 (Silver Centurion - sh232), and Scuba Iron Man (sh213).
Collectibility
High. LEGO fans often attempt to collect every Iron Man 'Hall of Armor' suit. As a unique-color suit, it is a centerpiece for Marvel collectors.
History
Debuted during the 2016 Avengers wave which focused on underwater missions (Sub-Attack) to expand the variety of Iron Man armors beyond standard red and gold.
Interesting Facts
Despite being an 'underwater' suit, it shares parts of its design aesthetic with the Starboost (space) suit. It's one of the few Iron Man figures where the main body is neither Red nor Dark Red.
Display Suggestions
Best displayed in a Hall of Armor MOC or a deep-sea diorama using trans-blue tiles. Use a UV-protected case to prevent the orange plastic from yellowing.
Modification Potential
The orange parts are excellent for custom MOCs of construction-themed robots or sci-fi explorers. Easily combined with parts from the Scuba Captain America for aquatic scenes.
Overall Assessment
An excellent and visually distinct minifigure. For any Marvel collector, this is a 'Must Buy' due to its unique color palette and limited appearance in a single retired set.