The previous-generation Isuzu D-Max is one of SA’s automotive backbones, but is it worth considering on the used market?
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In the fiercely contested South African double-cab market, flashy marketing and bloated tech sheets often masquerade as true utility. The Isuzu D-Max, however, has historically rejected this pretence and anchored its market share on an iron-clad reputation for unbreakable mechanical durability. When this sixth generation launched in 2013, it was badged under the ‘KB’ moniker – a name synonymous with South African agriculture and fleet operations. However, following General Motors’ exit from the local market, Isuzu Motors South Africa consolidated its operations in 2018, subsequently aligning the bakkie with its global naming convention: ‘D-Max’. This 2013-2021 platform represents the final iteration of Isuzu’s purely utilitarian era before the more digitised current generation arrived.
A rundown on the Isuzu D-Max
Built on a heavy-duty ladder-frame chassis with a traditional leaf-spring rear axle, the D-Max prioritised payload and towing capacity over unladen ride comfort. Consequently, the chassis transmits mid-corner bumps and road imperfections directly into the cabin, feeling decidedly agricultural compared to a unibody SUV or its Ford Ranger rival. Inside, the architecture is unapologetically robust and the dashboard is constructed from hard, scratch-resistant plastics designed to survive decades of dust and direct sunlight. While early KB models featured rudimentary dot-matrix audio interfaces, the 2018 D-Max brought a much-needed technology update, with higher-tier LX models gaining an 8.0-inch touchscreen infotainment system that supports satellite navigation and smartphone mirroring.
The powertrains are anchored by Isuzu’s trusted D-TEQ turbodiesel engines. The high-output version of the 2.5-litre, four-cylinder unit delivered 100 kW at 3 600 r/min and 320 N.m of torque from 1 800 r/min, and returned a frugal claimed consumption of roughly 7.7 L/100 km. However, the definitive powerplant is the flagship 3.0-litre D-TEQ. Pushing out 130 kW and 380 N.m of torque, it offers the necessary rotational force for heavy towing. While early 3.0-litre variants utilised a five-speed manual or five-speed automatic, the 2018 update introduced six-speed manual and six-speed automatic transmissions to non-entry level models, vastly improving highway cruising refinement and fuel efficiency.
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What to look out for when buying a used Isuzu D-Max
- Suction control valve (SCV) failure: symptoms of SCV failure include a rough, surging idle, a sudden loss of power, or the engine stalling unpredictably.
- Inner wheel-arch apron cracking: on early 2013-2016 KB models subjected to severe, high-speed off-roading, stress fractures can develop on the inner front wheel-arch aprons within the engine bay.
- EGR valve carbon buildup: the exhaust gas recirculation (EGR) valve is prone to severe carbon clogging, particularly on vehicles driven predominantly at low speeds. This restriction chokes the engine, resulting in sluggish acceleration and excessive black exhaust smoke.
- Cold start injector rattle: the 3.0-litre D-TEQ engine is inherently noisy, but a harsh, metallic clattering upon cold startup that does not fade as the engine warms up indicates worn or dirty fuel injectors.
- Leaf spring squeak: the heavy-duty rear leaf springs are notorious for developing a persistent, irritating squeak over speed bumps.
Which one to buy
Prospective buyers are encouraged to opt for a post-2018 D-Max 3.0 D-TEQ LX automatic. Opting for this model secures the superior six-speed automatic transmission and the modernised touchscreen infotainment system. The 3.0-litre engine is essential, as its 380 N.m of torque operates entirely unstressed, and can cover more than 400 000 km without requiring a major mechanical overhaul – as long as you respect the maintenance schedule.
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The post Buying Used: Isuzu D-Max (2013-2021) appeared first on CAR Magazine.
