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Tyco Taiyo Collectors is a resource for enthusiasts of 80s, 90s, and 00s toys produced by Tyco®, Taiyo (Japan), Metro RC, Dickie Toys, and others, and is not affiliated with any toy company.

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12th November 2023
If you’re looking for the perfect nostalgic gift from the 80s and 90s, a vintage Tyco Mini Hopper is my pick! They’re great collectors items and are still fairly affordable.


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1989 Dino Riders Diplodocus

tyco logo very small
198991501xC VSml

4.1 out of 5
Another large, impressive walking battle-clad dino with excellent detail, and prices are merely expensive, not yet completely bonkers. Worth a look!
out of 5
Review CommentAnother large, impressive walking battle-clad dino with excellent detail, and prices are merely expensive, not yet completely bonkers. Worth a look!


The Dino Riders Diplodocus with Questar Mind-Zei and Aries and Full Battle Accessories is an action figure set in 1/24th scale, manufactured by Tyco Industries and released worldwide in 1989.

One of the largest Dino Riders action figures, Diplodocus has the built-in electronic walking mechanism as seen in other large dinos, and a huge double-sided battle pod and other accessories which combine to make an impressive sight for any kid or adult.


Powered by 1 x C size battery, Dino Riders Diplodocus is a walking battle platform and one of the largest of all Dino Riders. With twin modules on each side carrying personnel and equipment, quad rocket launchers on its neck, twin tail lasers and a command pod in the air. Piloted by Questar in the pod, with Aries and Mind-Zei hiding in the pods ready to spring into battle!

Tyco Marketing
Authentic 1/24th scale Dino Rider Diplodocus is a walking fortress. Questar, the leader, controls four neck cluster rockets and two laser tail guns. Aries and Mind-Zei spring into battle from the hidden armed battle pods.

  • Quad neck cluster rockets
  • Pivoting command module
  • Museum quality replica
  • Twin laser tail guns
  • Hidden armed battle pods
  • Motorized walking action
  • Real synchronized head movement
  • Fully accessorized and ready for battle
  • 1 x C battery required / not included.
– 1990 Tyco Catalog

Diplodocus is mentioned in the 1989 and 1990 Tyco Catalog which we have a full scan of – check it out!

Watch out for the Smithsonian

As with all Dino Riders, be sure to check you’re not buying a mis-labelled Smithsonian dinosaur figure, which Tyco manufactured after the shutdown of Dino Riders as a brand. Since many of those were redesigned to remove the walking mechanism and exclude all the other accessories, you’ll have a hard time making it into a fully restored model. Despite being not quite the same, they’re similar enough and interesting enough to make good additional collectors pieces – as are the Japanese Dino-Riders models (especially if you have the fantastic Japanese packaging!)

Package Contents for Model No. 9150 Dino Riders Diplodocus

Collectability and Availability

What surprised me about Diplodocus was its availability and almost reasonable pricing for a complete boxed collection.

At the time of writing, you could pickup a Diplodocus without any additional accessories or box for between $65-100 USD. Accessories are priced around $5-10, and complete boxed sets around $550 which is alot of money, but not the used-car level money we’ve seen from other models. Major accessories such as the twin pods are’nt cheap though ($100-150USD) so it all adds up if your building your set piecemeal.


    Average Price


    Highest Price


    This average price is based on 28 sales we have recorded (max 10 shown).

    03 Nov 2023$2.5UsedAuctionTyco dino-riders - diplodocus accessories including questar figure
    03 Nov 2023$49.48UsedBuyTyco - dino riders - diplodocus - vintage - spares and repairs - working - parts
    01 Nov 2023$59.99UsedBuyVintage 1987 dino riders diplodocus side armor pod w/ guns part - lot of 2
    31 Oct 2023$24.95UsedBuyDino riders diplodocus large tail armour shield 1988 tyco
    30 Oct 2023$349.99UsedBuyTyco 1988 dino riders diplodocus w/accessories complete & working
    29 Oct 2023$214.67UsedAuctionDino-riders diplodocus
    27 Oct 2023$399UsedBuyVintage dino riders diplodocus 1989 tyco toys dinosaur complete tested & walking
    26 Oct 2023$4.94UsedBuyVintage 1988 tyco dino riders t-rex vs diplodocus print ad netherlands
    26 Oct 2023$69.99UsedBuyTyco dino riders diplodocus battery operated action figure vintage 1987 green
    26 Oct 2023$12.37UsedBuyDinoriders diplodocus pod armour top large laser gun
    Prices in USD. NIB = New In box, MIB = Mint in Box, EC = Excellent Condition, VGC = Very Good Condition, GC+ = Good condition plus, GC = Good condition, PC = Poor Condition. With Controller = Car with controller. With Box = Box, Car, and Controller. We make all efforts to ensure data is accurate, but cannot guarantee it is.


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