Originally introduced as a swirl chamber, naturally aspirated diesel it was mostly used in commercial vehicles worldwide.
[2] Heat flux issues with the aluminium head and swirl chambers were eventually overcome, but did slow down development.
In the early beginning there was a 2-litre (1,995 cc) four-cylinder 65 PS (48 kW), called the Sofim 8144.65.
Alongside the 2.4-litre version it was used in light commercial vehicles like the Saviem SG2, OM Grinta, and the Fiat/Iveco Daily, as well as passenger cars like the Fiat 131 and 132 models.
The bore remained unchanged at 93 mm, this version displaces 2,499 cc (152.5 cu in).