Volvo MP7-325E

The register lists here 76 versions with 325 to 564 kW rated output at 1,450 to 1,900 rpm; displacement of 10.8 to 12.8 litres is recorded for 62 of the 76 versions. Maximum torque ranges from 1,215.3 to 2,122 Nm at 1,000 to 1,200 rpm. Classic direct injection (62 versions) sits alongside electronic direct injection (14 versions) on older certifications; 62 versions are approved for tractor and vocational use, 14 fall into the separate heavy heavy-duty diesel (HHDD) category.

With rated output up to 564 kW, this collective page also covers the most powerful versions of the D13 range ever certified, designed chiefly for heavy-haul and long-distance service at high gross weight. Volvo thereby positions itself in the North American market against the top-output engines from Cummins, Detroit Diesel and Paccar.

On the older, electronically direct-injected versions the injection pump's history matters, on the newer common-rail versions the condition of the injectors and high-pressure pump; consistently important throughout is the service history of exhaust gas recirculation, diesel particulate filter and SCR catalyst, plus turbocharger condition. Spare parts and diagnostics run through the Volvo Trucks dealer network.