Isuzu Giga vs Peterbilt 389

The Peterbilt 389 is ahead on: narrower to transport.

Below, every figure both makers publish sits side by side, with the Isuzu Giga and the Peterbilt 389 drawn to the same scale from their dimension drawings.

Isuzu · truck
Isuzu Giga
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Peterbilt · truck
Peterbilt 389
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At a glance

Bold is the machine ahead on each figure, with its lead.

Figure	Isuzu Giga	Peterbilt 389
Overall widthLower is better	2.49 m	2.408 m+3%

All specifications

Every figure the makers publish. Search for one, or show only those that differ.

Differences only(40)

FigureIsuzu Giga Peterbilt 389

Dimensions

Overall length6.93 mNot published

Overall height (cab roof)3.2 mNot published

Wheelbase3.885 mfront axle to centre of rear bogieNot published

Tandem axle spacing1.31 mNot published

Front overhang1.4 m0.787 m

Rear overhang1.645 mfrom centre of rear bogieNot published

Front axle to back of cab0.764 m2.555 mFAB

Back of cab to rear end4.766 mNot published

Behind cab equipment to rear bogie centre2.45 mNot published

Cab height above frame2.196 m2.017 mFrom bottom of frame rail

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 view2.408 mTop view

Front track2.01 mdimensioned on the maker's front viewNot published

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 published3.343 m389-131 (131 in hood)

Front of frame to front axleNot published0.498 m

Weight

Kerb weight7,810 kgNot published

GVW24,000 kgGVMNot published

GCW50,000 kgGCMNot published

Front axle load6,600 kgloading limit at groundNot published

Rear axle load20,865 kgloading limit at ground (tandem)Not published

Engine

Engine modelIsuzu 6WG1-TCC, turbocharged and intercooled, common railNot published

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 rpmNot published

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 grossNot published

Transmission

GearboxEaton RTLO 18918B 18-speed constant mesh manualNot published

ClutchSpicer twin plate 15.5 in, air assistedNot published

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 groundNot published

Tyres

Tyres295/80R22.5 steer, 11R22.5 drive, 22.5 x 8.25 steel wheelsNot published

Service capacities

Fuel tank550 Lframe-mounted aluminiumNot published

Performance

Top speed100 km/hspeed limited; geared 128 km/h at 1,800 rpmNot published

Sources: Isuzu Giga EXY 240-460 6x4 specification sheet ARK1422 02/21 (Isuzu Australia Limited) · Peterbilt Heavy Duty Body Builder Manual, March 2015 Rev A, Figure 3-1 Model 389-131 overall dimensions

Drawn to scale

Side views measured off each maker's dimension drawing, front edges and ground lined up.

Isuzu GigaPeterbilt 389Same scale, front edges and ground lined up.