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Isuzu Trucks’ consistent ability to read the needs of Australian businesses has been vindicated yet again in 2016, with the release of its all new F Series medium-duty truck range.

After a long 13-year gap in reporting on Australian freight movements, Australian Bureau of Statistics* (ABS) findings highlight an enormous domestic freight task undertaken predominantly by Japanese medium-duty trucks.


The release of Isuzu’s new and vastly improved F Series range pairs deftly with ABS figures showing a huge 95 per cent of Australian road freight movement is piloted within the same state or territory.

Andrew Harbison, Isuzu Australia Limited’s (IAL) National Sales Manager said the confined, intrastate-based nature of freight delivery in Australia positions Isuzu’s latest range offering very well.

“IAL have kept a close watch on these and other findings over the years, and they certainly help inform our engineering direction and overall sales approach,” he said.

“We’ve developed the new F Series range with business efficiency front of mind. Our trucks are famously reliable for those longer runs and nimble enough for urban delivery, with all the class-leading features customers have come to expect from Isuzu.

“The Isuzu F Series range has the capacity to work hard while delivering a genuine low-cost operation.”

New additions

The Isuzu F Series now comes with two different driveline technologies available for 4×2 and 4×4 models.

The star of the show comes in the form of the new high torque, small displacement 4HK1 turbocharged and intercooled diesel engine, considered the cleanest medium-duty Japanese diesel engine available in Australia today.

Completing the package is Isuzu’s new torque converter equipped automated manual transmission (TC-AMT).

There are now two power variants to choose radiating from the low displacement, high torque new 4HK1 four-cylinder turbocharged and intercooled diesel engine.

There’s also the new six-cylinder Isuzu 6HK1 engine features a Diesel Oxidation Catalyst (DOC) for low maintenance and unparalleled dependability.

Isuzu’s new 4HK1 engine
This new engine has been completely redesigned, and with its low displacement and impressive power and torque rating, the 4HK1 is a first for the Australian truck market.

Customers can take advantage of a 5.2 litre, four-cylinder, two-stage turbocharged and intercooled engine available in two power ratings…

  1. A 154 kW (210 PS) variant, producing 726 Nm of torque
  2. A 177 kW (240 PS) variant, generating 765 Nm of torque

They represent state-of- art diesel technology which stretches across a swathe of the F Series range, including 11 brand new models.

The 240 PS models include the FRR at 11 tonnes GVM, and the FSR at 12-tonne and 14-tonne GVM respectively.

Meanwhile, the 210 PS variants include the Isuzu FRR and FRD 4×2 models and the FSS 4×4 with GVMs spanning 10.7-tonne to 11-tonne.

Clever turbo

Performance hasn’t been ignored either. A key update to the new 4HK1 engine is the introduction of a two-stage turbocharger.

Both the low-pressure and high-pressure elements of the turbo operate throughout the engine rev range, providing even and unbroken power from take-off.

Idle Stop System

Fuel economy gets further improvement too, as 4×2 models fitted with the new 4HK1 engine (except for power take-off (PTO) variants), now come with the addition of Isuzu’s idle-stop technology, known as the Idle Stop System (ISS).

This system rests the engine when the vehicle is stationary, at traffic lights or in heavy traffic conditions, reducing emissions, fuel consumption and ultimately cost.

Emissions control

The 4HK1 complies with Japan’s Post New Long Term (PNLT) emissions standard, which is similar to Euro VI.

Both PNLT and Euro VI are expected to be acceptable alternatives when ADR 80/04 (the next emissions standard for trucks) is finalised.

Isuzu’s least diesel particulate diffuser (DPD) system has also been added, with a dedicated fuel injector in the manifold solely to take care of regenerations. The DPD works to remove particulate matter from exhaust gas emitted by the engine, while minimising fuel usage, giving it the highest green credentials in its range.


From now on the 4HK1 can be mated to the latest third generation Isuzu torque convertor automated manual transmission.

The torque converter will significantly increase start-ability and driveability, and replicates the take-off characteristics of a full automatic.

Isuzu F Series models that benefit from the new torque converter AMT sit within the 10.7-tonne to 14-tonne GVM range.

The FRR and FRD 10.7 tonne models both receive the 210 PS new 4HK1 engine with improved DPD and the new torque converter AMT where available.

The 11-tonne, 12-tonne and 14-tonne 4×2 GVM trucks will benefit from the high torque 240 PS engine variant with Isuzu’s optional torque converter AMT.

The Isuzu 6HK1 DOC engine

The 6HK1 with DOC is the only medium-duty engine on the Australian market with neither a diesel particulate filter nor SCR.

The technology is suited to vocational applications requiring high idle time, high PTO use and frequent stop-start duties.

Greater flexibility

The new 6HK1 with DOC powers FRR, FRD, FSR, FSD, FTR and FTS models with the Isuzu 6-speed manual transmission, or the Allison LCT2500 six-speed automatic transmission.

The new 6HK1 DOC engine is also available in new models to the line-up, the FVR and FVD with ZF manual transmission or Allison MD 3000 six-speed automatic.

More choice

Additional models, wheelbases and model variants represent more choice for medium-duty truck customers, tailoring the range to suit more applications.

At 10.7 tonnes 4×2 are the FRR (including Tipper) and FRD models equipped with the new 4HK1 210 PS engine, with either the TC-AMT or Isuzu manual transmission.

Staying with the four-cylinder engine at 11-tonne GVM is the FRR with the 240 PS new 4HK1, again with either the new TC-AMT or Isuzu manual transmission.

In the six-cylinder 11-tonne variants are the FRR and FRD, sporting the 260 PS 6HK1, and including the crew-cab model. These variants can be ordered either with Isuzu manual or Allison LCT2500 6-speed automatic transmissions.

At 12-tonne GVM (with an optional 14-tonne rating) there is the FSR with the 240 PS new 4HK1 engine and choice of manual or TC-AMT transmission.

For FSR and FSD at 14-tonne GVM (with the option of being de-rated to 12 tonne) is the six-cylinder 6HK1 DOC, with either a manual or Allison automatic transmission.

To round-off the FSR lineage, there’s the 14-tonne GVM rated dual-control model available for a range of vocational applications and sporting the new 6HK1 DOC engine.

Moving up in weight to the 15-tonne GVM bracket are two FTR offerings including crew cab – equipped again with the no-nonsense 260 PS DOC engine.

The brand new entry level full size 4×2 FVR and FVD models, both at 16.5 tonnes GVM, are powered by the 260 PS 6HK1 DOC, while the remainder of the FV range carries over with the highly effective 300 PS variant of the Isuzu 6HK1 engine.

Regardless of engine technology, each model embodies a substantial leap in product development.

*9223.0 – Road Freight Movements, Australia, 12 months:


For further information, please contact:          
Jeff Birdseye                                                        
Marketing Manager                                                  
Isuzu Australia Limited                                            
Phone: 03 9644 6666

For Isuzu Truck Releases and Photos:   
Arkajon Communications
Phone: 03 9867 5611