Dimensions
Overall length6.93 mNot published
Overall height (cab roof)3.2 mNot published
Wheelbase3.885 mfront axle to centre of rear bogie3,785-6,660 mm (149-262 in) listed for GR/GU7 axle-forward tractors
Tandem axle spacing1.31 m1.27 m
Front overhang1.4 m0.737 m
Rear overhang1.645 mfrom centre of rear bogieNot published
Front axle to back of cab0.764 m2.223 m
Back of cab to rear end4.766 mNot published
Behind cab equipment to rear bogie centre2.45 mNot published
Cab height above frame2.196 m1.801 m
Frame height at front0.915 mat front axle, unladenNot published
Frame height at rear1.035 mat rear axles, unladenNot published
Overall width2.49 mdimensioned on the maker's rear view2.553 m
Front track2.01 mdimensioned on the maker's front view2.055 m
Rear track1.85 mmaker's RT, on the rear viewNot published
Width across rear tyres2.44 mmaker's ORT, on the rear viewNot published
Turning circle14.6 mkerb to kerbNot published
Bumper to back of cab (BBC)Not published3.112 m
Front of hood to back of cabNot published2.959 m
Back of cab to exhaust stackNot published0.292 m
Frame heightNot published0.853 m
Ground clearanceNot published0.48 m
Exhaust stack height above frameNot published2.736 m
Width over mirrorsNot published2.962 m
Bumper to back of cab (2026 all-new Granite)Not published2.883 maxle-forward and axle-back day cab, 2026 cab
Weight
Kerb weight7,810 kgNot published
GVW24,000 kgGVMNot published
GCW50,000 kgGCMNot published
Front axle load6,600 kgloading limit at ground5,443-9,072 kg (12,000-20,000 lb) front axle ratings, GR/GU7 tractor
Rear axle load20,865 kgloading limit at ground (tandem)17,239-20,866 kg (38,000-46,000 lb) rear axle ratings, GR/GU7 tractor
Weight classNot publishedClass 8 heavy-duty
Engine
Engine modelIsuzu 6WG1-TCC, turbocharged and intercooled, common railMack MP13; Cummins X10 (10 L) optional
EmissionsJNLT 05 / ADR 80/03 (cooled EGR + DPD)Not published
Cylinders6Not published
Displacement15.7 LNot published
Gross power350 kW (469 hp)JIS gross, at 1,800 rpm540 hp max (MP13); 450 hp max (Cummins X10)
Net power338 kW (453 hp)DIN net, at 1,800 rpmNot published
Max torque2,255 NmDIN net at 1,300 rpm; 2,334 Nm JIS gross1,950 lb-ft max (MP13); 1,650 lb-ft max (Cummins X10)
Transmission
GearboxEaton RTLO 18918B 18-speed constant mesh manualmDRIVE HD 12-, 13- or 14-speed automated manual; Allison RDS Series 6-speed automatic
ClutchSpicer twin plate 15.5 in, air assistedNot published
Axle configurationsNot published4x2, 6x4, 8x4 with pusher or tag axle, 8x6 tridem, 10x4 with pusher axles
AxlesNot publishedMack, Meritor or Dana Spicer front axles; Mack, Meritor or Dana rear axles
Axles
Rear axle ratio3.73:1Not published
Rear axlesMeritor RT-40-145GP tandem, 18,100 kg, inter-axle and cross locksNot published
Front axleMeritor FG941, 6,600 kgNot published
Rear suspensionHendrickson HAS461 airbag, 20,865 kg at groundMack Camelback, MaxRide air, Mack AL, Hendrickson Haulmaax EX
Tyres
Tyres295/80R22.5 steer, 11R22.5 drive, 22.5 x 8.25 steel wheelsNot published
Service capacities
Fuel tank550 Lframe-mounted aluminiumNot published
Engine oil panNot published42 LMP7 / MP8 oil pan (44 US qt)
Performance
Top speed100 km/hspeed limited; geared 128 km/h at 1,800 rpmNot published
Cab
CabNot publishedAxle-forward or axle-back day cab, 113.5 in BBC; 44-inch mid-roof sleeper option
Service intervals
Engine oil and filterNot published70,000 km
Fuel filtersNot publishedwith each engine oil change
CoolantNot published1,200,000 km
Air filterNot publishedinspect at each oil change; replace at the gauge maximum or every 24 monthsevery 12 months in severe duty
DEF filters and tankNot published289,000 km
Transmission oil and filterNot published800,000 km or 60 months
Axle oilNot published800,000 km / 36 months (GO-J PLUS)
