Perkins 6.247

{{use british english|date=February 2025}}

The Perkins 6.247 is a diesel engine designed by Perkins Engines in the mid-1970s, intended for light duty commercial vehicles with lower NVH than contemporary offerings.{{cite journal |last1 = Larkinson |first1 = D. E. |last2 = Neal |first2 = R. J. |last3 = Schultz |first3 = W. J. |title = The Perkins 6.247-The High Speed, High Economy Diesel Engine for North American Light Duty Applications |journal = SAE Technical Paper |series = SAE Technical Paper Series |number = 760052 |date = 1976 |volume = 1 |doi = 10.4271/760052 |issn = 0148-7191}} It is a six-cylinder variant of the Perkins 4.165. It was built under licence by Mazda as the ZB. It was fitted to the Australian Ford F100 series light trucks for a short period from the late 1970s to the early 1980s; in the United Kingdom it was installed in the Dodge 50 Series.{{cite web |title=Dodge 50 / Renault 50 trucks and vans of the UK |url=https://www.allpar.com/threads/dodge-50-renault-50-trucks-and-vans-of-the-uk.229510/ |archive-url = https://web.archive.org/web/20161222010554/http://www.allpar.com/trucks/dodge/dodge-50.html |archive-date = 2016-12-22 |editor-first = David |editor-last = Zatz |work = Allpar.com |url-status=live}} This engine was later revised and renamed the Mazda T4100 and fitted to the Mazda 3- and 4-tonne trucks.

Bore and stroke are {{cvt|92.0|×|101.6|mm|in|2}} for an overall displacement of {{cvt|4.052|L|cc cuin|adj=ri1|sigfig=4}}. When installed in the Dodge 50, this engine produces {{cvt|93|hp|kW|0}} and {{cvt|160|lbft|Nm|0}}.