The Moskvitch 412 (Moskvich 412, M-412), also called 2140 in 1975 prior to discontinuation and 1500 SL outside USSR, was a small family car produced by Soviet manufacturer MZMA/AZLK from 1967 to 1976. It was also built as the Izh 412 by IZh in Izhevsk from 1967 to 1997 and replaced by the spun off Izh 2125 Kombi series thereafter. The 412, although featuring many flaws gradually fixed with its replacement, was one of the best known third generation Moskvitches and, until 1974, the best selling car in the history of AZLK.

Basically, the Moskvitch 412 was an upgrade of the 408 model in terms of engine features, just as the second generation M-403 was an upgrade of the 402/407.

Upon designing the 1,478 cc (90.2 cu in) DM engine, Moskvitch engineers have likely taken inspiration from the contemporary BMW M 115 engine used in the BMW 1500 model.It is a slanted (to a tilt of 20 degrees) inline-four engine with a block, head, and inlet manifold cast in aluminium (unlike the BMW, which had a cast iron block). Steel cylinder liners were replaceable to enable easy repair of the engine instead of having to replace it entirely. Since it was of an OHC design it was taller than the OHV MZMA-408 engine it replaced, which is why it was mounted at a slant. The same engine was used on Moskvitch cars until the sixth generation (2142).