Most 2021 Navaras use Nissan’s 2.3‑litre diesel engines with a 6‑speed manual option; they’re built for torque rather than economy and commonly carry close to a 1‑tonne payload and up to ~3.5t braked towing on the heavier spec models. As a diesel pickup expect DPF/EGR hardware — short, stop/start town work can cause soot build‑up — and commercial insurance/road‑use rules differ from private cars, so check running costs for your business needs. Trim and bed length vary (King Cab vs Double Cab, different bed liners), so confirm exactly which body/bed you’re looking at before buying.

• Load-bed condition under any liner: look for corrosion under plastic liners and around tailgate hinge points
• Towbar and electrics: check for wear on the hitch, wiring condition and reliable trailer lights/eu socket
• Clutch operation and pedal take-up: manual clutch wear is common on work trucks—feel for slipping or judder
• DPF/EGR signs: heavy smoke, frequent regeneration events, or a limp mode can indicate DPF/EGR issues from short-trip use
• 4x4 system and differential sounds: engage 4WD in all modes and listen for noises; check for diff/transfer-case oil change history