Isuzu four blazes a trail

Isuzu Australia says its new 4HK1 four-cylinder truck engine is setting a new standard in medium-duty trucks

Isuzu Australia Limited (IAL) says its new 4HK1 engine represents a new engineering high watermark for the Australian medium-duty truck market.

Driving five new models across the 2016 Isuzu F Series range (click here to read trucksales.com.au's drive impression, taken from the recent national press launch), Isuzu says the new 4HK1 has been developed in direct response to customers demanding superior fuel and environmental efficiency – without compromising on power and performance.

IAL Chief Engineer, Product Strategy, Simon Humphries, said the new Isuzu 4HK1 is positioned well ahead of the curve in terms of truck engine technology in Australia.

"There's nothing like the 4HK1 on the medium-duty truck market today and it really marks the advent of a new-generation of powerplant," he said.

"There's clear evidence of a global trend towards lower-displacement engines across the automotive world as people gravitate towards lighter, more profitable and more efficient engine technology."

The 4HK1 is a 5.2-litre, four-cylinder, two-stage turbocharged and intercooled engine available in two power ratings.

The 154kW (210hp) variant produces 726Nm of torque, with its more powerful counterpart boasting 177kW (240hp) and a very handy 765Nm of torque.

The 4HK1 complies with Japan's Post New Long Term (PNLT) emission standard, which is ADR 80/04 or Euro VI equivalent.

When compared to Euro V, PNLT standards require a reduction in nitrogen oxides (NOx) by 65 per cent and in particulate matter (PM) by 50 per cent.

"To stay ahead of the constantly changing priorities of your customers you can never rest on your laurels; that's why we're continually looking at ways we can deliver a more efficient product," Mr Humphries said.

"It's our mission to deliver on all fronts. From performance to fuel efficiency and cleaner emissions – we're extremely proud the new 4HK1 ticks all of those boxes."

The F Series models fitted with the new 4HK1 engine also benefit from the inclusion of the Isuzu Idle-Stop System (ISS), which works to produce impressive fuel economy figures by cutting engine use when the vehicle comes to a stop.

"Reduced fuel consumption was a key consideration in the development of this engine and we have new data from the Isuzu domestic market to show the 4HK1 can deliver a seven per cent overall fuel saving – this is going to be extremely well regarded by customers," Mr Humphries said.

"What we've achieved with the 4HK1 is a clear leap forward in engine technology, and undeniable evidence of the trend moving forward towards higher output and lower-displacement powerplants."

The 210hp variants of the 4HK1 power the Isuzu FRR, FRD, and FSS 4x4 with GVMs spanning 10.7 to 11 tonnes.

The 240hp variants of the 4HK1 include the FRR at 11 tonnes GVM and FSR at 12 and 14 tonnes respectively.

Isuzu four blazes a trail

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