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Transformers G1 Mainframe Price Guide [Action Masters]


Market value trends for G1 Mainframe (Action Masters class) since September 18, 2006
TypeAverage PriceQty Sold
Opened, Complete$32.00 2
No Package, Complete$26.25 32
Figure Only/Incomplete$7.00 3
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Sale DateDescriptionPrice
January 14, 2026Complete. Figure is c9.
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID 91ID
Tags: Mainframe with Push-Button,Transformers,G1,Generation 1,Action Masters,1990		$45.00
November 24, 2025Complete. Figure is c9.
Figure details:
Discoloration: light (waist and push button left arm)
Degree of dusting or washing needed: light to moderate
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID 40FZ
Tags: Mainframe with Push-Button,Transformers,G1,Generation 1,Action Masters,1990		$40.00
July 14, 2025Complete. Figure is c8.5.
Figure details:
Sticker wear: moderate
Paint wear: light
Degree of dusting or washing needed: light to moderate
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID WP86
Tags: Mainframe with Push-Button,Transformers,G1,Generation 1,Action Masters,1990		$40.00
June 26, 2025Complete. Figure is c9.
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID 93DY
Tags: Mainframe with Push-Button,Transformers,G1,Generation 1,Action Masters,1990		$35.00
February 16, 2024Complete. Figure is c9.
Figure details:
Discoloration: minor (torso and right arm)
Degree of joint looseness: light
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID YN21
Tags: Mainframe with Push-Button,Transformers,G1,Generation 1,Action Masters,1990		$40.00
September 27, 2023Figure Only. Figure is c8.5.
Figure details:
Discoloration: minor (back)
Degree of joint looseness: light
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID YP73
Tags: Mainframe with Push-Button,Transformers,G1,Generation 1,Action Masters,1990		$8.00
June 11, 2023Complete. Figure is c9-NEAR MINT.
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID VI59
Tags: Mainframe with Push-Button,Transformers,G1,Generation 1,Action Masters,1990		$75.00
February 18, 2022Complete. Figure is c8.
Figure details:
Paint wear: light to moderate
Discoloration: moderate (silver paints of Mainframe, blue on push button)
Degree of joint looseness: light to moderate
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID RO38		$40.00
September 29, 2021Push-Button only. Item is c8.
Notable defects: green parts, painted blue
Image of actual item can be seen here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID PY5		$8.00
July 21, 2021Complete. Figure is c9.
Figure details:
Degree of joint looseness: light
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID OU55		$60.00
April 23, 2021Complete. Figure is c8.5.
Figure details:
Paint wear: light
Discoloration: light (push button)
Degree of joint looseness: light to moderate
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID KE41
Tags: Mainframe with Push-Button,Transformers,G1,Generation 1,Action Masters,1990		$45.00
March 24, 2021Complete. Figure is c9.
Figure details:
Sticker wear: light
Image of actual item can be seen here and here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID MU52		$35.00
October 6, 2019Complete. Figure is c9-NEAR MINT.
Image of actual item can be seen here and here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID FD92
Tags: Mainframe with Push-Button,Transformers,G1,Generation 1,Action Masters,1990		$28.00
August 25, 2018Complete. Figure is c9-NEAR MINT.
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID AC57		$25.00
June 22, 2018Complete, c8
Sticker wear: light
Paint wear: light
Discoloration: moderate
Degree of joint looseness: moderate (arms a bit loose)
Image of actual item can be seen here and here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID K6P4		$22.00
June 13, 2018Complete. Figure is c9-NEAR MINT.
Figure details:
Degree of joint looseness: minor (hips)
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID Z8S0		$22.00
December 19, 2017Complete. Figure is c9
Image of actual item can be seen here and here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID W4B6		$15.00
May 12, 2016Complete, c9-NM
Image of actual item can be seen here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID K4K4		$25.00
March 5, 2016Complete. Figure is c9
Sticker wear (figure): minor
Paint wear (figure): minor
Image of actual item can be seen here and here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID Q1Q2		$15.00
January 8, 2016Packaged, complete. Package is c9-NEAR MINT, figure is c9-NEAR MINT
Creasing (package): minor (upper left corner)
Other notes: Blister was neatly opened with razorblade, no lifting of card art, includes all inner packaging supports, and displays as if it were sealed!
Image of actual item can be seen here and here.
Item guaranteed original and not a re-issue or knock-off unless stated in this description.
TFL ID O4S0		$39.00
January 4, 2016Complete. Figure is c9-NEAR MINT
Sticker wear (figure): minor
Image of actual item can be seen here and here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID P3M3		$18.00
July 31, 2015Boxed, complete with blister still partly attached to backer. Package is c9, figure is c9-NEAR MINT
Major defects spotted: blister neatly cut no artwork lifting
Image of actual item can be seen here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID N5F7		$25.00
February 22, 2015Complete, c9 (excellent)!
Image of actual item can be seen here and here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID I4V3		$19.00
September 19, 2014Complete, c9-NEAR MINT.
Sticker wear: minor, if any
Paint wear: minor, if any
Discoloration: minor, if any
Degree of joint looseness: minor, if any
Chrome wear: minor, if any
Image of actual item can be seen here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID G5G4		$24.00
July 5, 2014Complete, c9-NEAR MINT.
Other paperwork: power plans
Image of actual item can be seen here and here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID J6J9		$20.00
April 9, 2014Complete, c9-NEAR MINT (beautiful!).
Image of actual item can be seen here and here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID i9a2		$18.00
December 6, 2013Figure only.
Approximate Grade (out of 10): 9
Please refer to video for exact details on quality of stickers, coloration, chrome, and paint particularly if they were not noted in the description. The link is cued to the time figure appears in video.
TFL ID: F4S6
Actual item was reviewed on our Youtube channel as part of inventory preview series 20-25b.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
AM Mainframe partner only		$5.00
September 9, 2012Complete, c8 (L arm loose, R arm joint is actually good but the arm will come off if pulled, light sticker wear, otherwise fine)
Actual images of item can be seen here.
Item guaranteed 1980s original and not a re-issue or knock-off unless stated in this description.
TFL ID: D1O3.		$16.00
May 2, 2012Complete, Excellent condition with good joints and paint. Item guaranteed 1980s original and not a knock-off, unless stated in description. Actual item was reviewed on our Youtube channel as part of inventory preview series 18-5.$18.00
November 7, 2011Complete, c9-NEAR MINT (minor paint wear, otherwise beautiful!). Item was reviewed on our Youtube channel as part of inventory preview series 11 - part 11. Item guaranteed original and not a knock-off or re-issue.$17.00
February 8, 2010Complete, c9 (light paint wear, otherwise excellent)$12.00
December 10, 2009Complete, c9-NEAR MINT (item was part of a well cared-for collection)$12.00
November 22, 2009Complete, c9-NEAR MINT (item was part of a well cared-for collection)$12.00
October 25, 2009Complete, c9 (excellent)$10.00
February 26, 2007Complete, c8 (small red spot on gun, Push-Button, and Mainfraom L leg, Z on Mainframe R leg, R arm easily detaches, otherwise excellent)$10.00
October 9, 2006Complete, c8 (loose arms, moderate sticker wear)$12.00
September 18, 2006Complete, c8-9 (wear on autobot symbol, loose joints, otherwise nice)$15.00
Note: Prices reflect activity at Transformerland.com ONLY