Main article: Perkins In this List of Perkins engines, family type refers to the two letter designation Perkins gives each engine. This nomenclature was introduced in 1978 under Perkins' new engine numbering scheme, where the family type is encoded in each unique serial number. Engines that went. Daihatsu Engine Parts: Other. Replace or Repair your Daihatsu HIJET with Genuine Daihatsu OEM Parts or Authorized Quality Made in Japan aftermarket replacements. We carry Parts for All Daihatsu Vehicles. Daihatsu Hijet S80 Series EB Engine S110P EFNS Intake Valves Set $11-87201-SET Quantity: Daihatsu Hijet: S80 Series.