Editing Stridsvagn 103 (section)

== Variants ==
[[File:Stridsvagn 103 outside the Swedish Army Museum in September 2015.jpg|right|thumb|Strv 103C at the [[Swedish Army Museum]], Stockholm, with anti-[[High-explosive anti-tank|HEAT]] [[slat armor]] on the front]]

; Stridsvagn 103B: As the weight of the Strv 103 had increased compared to the pre-production tanks, the 103 turned out to be under-powered. Hence, a more powerful version of the same gas turbine, manufactured by [[Caterpillar Inc.|Caterpillar]], was introduced after the first production run of 80 tanks. The early version tanks (retroactively designated Strv 103A) were soon upgraded to B-standard. Adjustments to the hydro-pneumatic suspension increased elevation range from −10 through +12 degrees, to −11 through +16 degrees.<ref>In Detail Special No. 4 – Strv 103B / C S – Tank 103c at the Belgian Royal Army Museum & 1/35 and 1/72 Scale Models – Photo Manual for Modelers Paperback – 2007, page 5</ref>
; Stridsvagn 103C: An upgrade programme was started in 1986 to fit all vehicles with improved fire control systems. Also, each Strv 103 was fitted with a dozer blade, rather than just one per platoon. A further upgrade in 1987/88 replaced the Rolls-Royce engine with a newer {{convert|290|hp|kW}} [[Detroit Diesel]] with more fuel cans placed along the sides to function as applique armour, and added a new laser [[rangefinder]].
[[File:Upgraded Strv 103 (GMSF.025511).jpg|thumb|right|The proposed Strv 103D upgrade]]
; Stridsvagn 103D: In the mid-1990s, as the [[Swedish Armed Forces]] were looking for a new main battle tank, one Strv 103C was upgraded into the Strv 103D. The major changes were the installation of fire-control computer, thermal viewers for both the gunner and the commander, allowing the crew to fight at night-time and in bad weather conditions, and the installation of passive light enhancers for driving. Some minor changes to the suspension system and engine were also made. There was some consideration of adding both [[reactive armor|reactive]] and/or [[appliqué armour]] in the early 1990s, but, in the end, the Strv 103 was instead phased out of Swedish service in favour of the [[Stridsvagn 121]] (leased [[Leopard 2]]A4s were used as a stop-gap measure), which entered service in 1997 (the last year that the Strv 103 was used to train tank crews).<ref name="Lindström" /> This prototype was used during the trials for the new main battle tank system for the Swedish Armed Forces alongside all the other tanks tested. For a few years this prototype was even tested under remote control. The sole Strv 103D is today on display at the Arsenalen national military vehicle museum,<ref>{{cite web|url=http://www.arsenalen.se |title=Arsenalen |publisher=Arsenalen.se |access-date=23 February 2022}}</ref> together with some 103C models. They are all still in running order.
[[File:Mintröska, MV 103C Deminer (01).jpg|thumb|right|MV 103C Deminer.]]
; Minvält 103C: The [[MV 103C Deminer]] was a minesweeper vehicle based on the 103C tank. The project was discontinued in 1997.

;[[15,5 cm bandkanon 1]]:[[Self-propelled artillery|Self-propelled howitzer]] developed from Strv 103 chassis.