Diesel parts and upgrades for the 4JJ1 (NON DPF) platform: injectors, catch cans, pumps, filters and transmission parts. Covering the 3.0L and 4JJ1. From Direction Plus and Denso. Supplied and fitted at our Oxley (Brisbane) and Warana (Sunshine Coast) workshops, or shipped Australia-wide.

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Showing 1–24 of 54 results

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4JJ1 injector costs and symptoms

Parts & fitment for your Isuzu DMAX / MUX 4JJ1 (NON DPF)

Genuine injectors and pumps, plus quality-aftermarket upgrades, for the Isuzu DMAX / MUX 4JJ1 (NON DPF). In stock at Willys Workshop: engine internals, diesel fuel system, gaskets & seals, common rail injectors, air intake, pre & post filters, common rail injector accessories, timing components and more. Fast Australian shipping with fitment support from our Brisbane (Oxley) and Sunshine Coast (Warana) workshops.

Not sure what fits your Isuzu DMAX / MUX 4JJ1 (NON DPF)? Send us your rego or build and we'll confirm fitment before you buy.