SnowRunner features a variety of vehicles you use in the game to traverse the dangerous environment. It’s you against the elements, and you want to use the best equipment and transportation you have available to you. A great vehicle upgrade you can go after is for the Yar 87.
You can find the hidden upgrade for this vehicle in Taymyr, Russia. It’s in the Zimnegorsk region, making it easier to narrow down. You can find it in the north of the factory and the oilfield delivery, right in the middle of the map.
Redditor LegaRoSS was able to narrow down the exact location of this upgrade. It’s normally hidden in the Russian area of the map. You do need to go offroad to obtain this item, and you can proceed from the north or the south. It shouldn’t take you too long to find, right in the middle of the forest.
Some of the upgrades in SnowRunner have been hidden from the players, making them a bit more difficult to find than others. This one, the Yar 87 upgrade, is one of them. If you need to unlock the Zimnegorsk region in Russia, you can unlock it by having access to Quarry and then proceed to the gateway on the east side of the map.
The final gateway should send you straight to Zimengorsk, unlocking it for you. Quarry takes a bit more time where it requires you to complete two objectives in the Drowned Lands.