Efficiency for any applicationThe Volvo D8K is a very fuel-efficient engine with low emissions, high capacity and low weight. As a result, it isperfectly suited for demanding intercity applications as well as coach operations, where performance and fuel economy are crucial factors.

Advanced after-treatment for Euro 6The Volvo D8K is a low-emission engine in terms of both exhaust gases and noise. The engine is approved for the Euro 6 emission standard. The low emissions are achieved by after-treatment of the exhaust gases using:• SCR(SelectiveCatalyticReduction) • EGR(ExhaustGasRecirculation) • DPF(DieselParticulateFilter) • DOC(DieselOxidationCatalyst)The after-treatment components are integrated in a one box muffler design.

•Maximumtorquewithinawiderevrangegives very good driveability

•Fuel-efficient•Low-emissionEuro6•Oilreplacementevery100,000km,withVDS4•Closedcrankcaseventilation(option)

Volvo D8KEuro 6

FEAturEs And bEnEFits

Driveability and fuel efficencyThe Volvo D8K is an in-line six-cylinder common-rail 7.7-litre engine with an overhead camshaftandfourvalvespercylinder.Itisavailablewithpoweroutputsof280,320and350hp.TheenginemeetsEUexhaustemissionrequirementsaccordingtotheEuro6standards.

Hydraulic fan driveThe D8K features a hydraulic fan drive which contributes tolower energy consumption and safer functioning.

Heavy-duty alternatorsNew alternators with a balance feature that evenly distributes the load offer longer lifetime and enhanced fuel efficiency. Theycanwithstandapprox.15–20°Chigherambient temperature, which also increases the alternators’ service life.

Fuel-efficient with good driveabilityTheVolvoD8Kisequippedwithcommon-railthatpermithighinjectionpressure.Thecombustionchamberandairintake are designed for optimum combustion. The gas-fill ratio is high, which contributes to the high efficiency rating. This design provides fuel-efficiency with low emissions, high power andconsiderabletorquewithinawiderevrange.Asaresult,the Volvo D8K engine offers extremely good driveability and an extended economical rev range.

Low noise emission when idlingThecrankshaftandcamshaftfeaturehydraulicvibration dampers,whichminimisenoiseandvibrations.Fuel pre-injection is used to further dampen noise when idling.

Closed crankcase ventilationTheVolvoD8Kcanbeequippedwithclosedcrankcase ventilation.Thecrankcasegasesinthevalvecoverareledbacktotheturbochargerviaanoilseparatorwithacentrifuge. Reusingthecrankcasegasesresultsinaverycleanand environmentally optimised engine.

timing mechanismThe timing mechanism drives the power steering pump, oilpump, fuel supply pump and air compressor. It is a compact,quietandwell-sealeddesignthatsavesweight.

Volvo D8KEuro 6

type designation Volvo d8K280 Eu6 Volvo d8K320 Eu6 Volvo d8K350 Eu6

Max.outputat2100–2200rpm 280hp(206kW) 320hp(235kW) 350hp(258kW)

Max.revs 2650rpm 2650rpm 2650rpm

Max.torque 1050Nmat950–1700rpm 1200Nmat1050–1600rpm 1400Nmat1200–1600rpm

type designation All models

No. of cylinders 6

Bore 110mm

Stroke 135mm

Displacement 7.7 dm3

Compressionratio 17.5:1

Exhaustbrakeeffectat2800rpm 170kW

Economy rev range 1000–1400rpm

Optimumrevrange 1200–1350rpm

Oil-changevolume,including oil filters

approx.26,5L

No. of oil filters 1full-fow

Coolingsystem,totalvolume approx.36L

Dryweight(baseengine) approx.732kg

BED00526.13.04EN.Equipmentthatisshownormentionedinthepublicationmaybeoptionaloravailableasanaccessoryandmayvaryfromonecountrytoanother.Weretaintherighttoalterproductspecificationswithoutpriornotification.

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