The Isuzu MU-X body-on-frame SUV is set to receive a smaller and more efficient turbo-diesel engine in Australia during 2024.

    The RZ4E-TC 1.9-litre four-cylinder turbo-diesel engine already features in the related Isuzu D-Max in Australia, as well as the MU-X in other markets. It will supplement the existing 3.0-litre four-cylinder turbo-diesel engine in the local MU-X range.

    “IUA plans to introduce the Isuzu 1.9L engine available in some current D-Max variants to the MU-X range in 2024,” said a Isuzu Ute Australia (IUA) spokesperson.

    “Exact timings and model range at this stage is not confirmed, but we will provide more information when it becomes available.”

    The 1.9-litre four-cylinder turbo-diesel engine is currently only offered locally on the entry-level D-Max SX variant in 4×2 single cab-chassis and 4×4 dual-cab ute configurations.

    It’s unclear if Isuzu Ute Australia will adopt a similar strategy with the MU-X and only offer the smaller engine on the entry-level LS-M variant, or if it could also potentially feature on the LS-U and LS-T variants.

    The 1.9-litre four-cylinder turbo-diesel engine produces 110kW of power and 350Nm of torque in the D-Max. This is down 30kW and 100Nm on the larger 3.0-litre four-cylinder turbo-diesel.

    This engine is mated to either a six-speed manual or six-speed automatic transmission in the D-Max, with drive sent to the rear wheels only or through a part-time four-wheel drive system.

    In the D-Max this engine has a claimed combined fuel economy of between 6.7 and 7.0 litres per 100km, depending on the configuration. This is slightly more efficient than D-Max variants with the 3.0-litre engine which consumes between 7.7 and 8.0 litres per 100km.

    D-Max variants with the 1.9-litre engine have a 2800kg braked towing capacity with the manual, and 3000kg with the automatic. For reference, all D-Max and MU-X variants with the 3.0-litre engine have a 3500kg braked towing capacity.

    In addition, D-Max variants with the 1.9-litre four-cylinder turbo-diesel engine are $2000 more affordable in Australia than with the 3.0-litre four-cylinder turbo-diesel.

    It’s unclear if Isuzu Ute Australia will have a similar price difference for the 1.9-litre and 3.0-litre turbo-diesel engines in the MU-X.

    If it does this will mean the entry price of the could fall closer to the $45,000 mark. The range currently starts at $48,900 before on-roads for the MU-X LS-M 4×2.

    As noted above, more information on the exact timing and the MU-X variants set to receive the 1.9-litre four-cylinder turbo-diesel engine will be announced during 2024.

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    Jack Quick

    Jack Quick is an automotive journalist based in Melbourne. Jack studied journalism and photography at Deakin University in Burwood, and previously represented the university in dance nationally. In his spare time, he loves to pump Charli XCX and play a bit of Grand Theft Auto. He’s also the proud owner of a blue, manual 2020 Suzuki Jimny.

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