Parts for your 2016 Nissan Navara-Water pump

2016 Nissan Navara water pump — what it does and when to replace it

Yes, a water pump is fitted to the 2016 Nissan Navara. Technical references that confirm this include the Nissan Navara D23 Series Service Manual (CO – Engine Cooling System), which covers inspection and replacement of the water pump on both the YS23DDT/DDTT 2.3‑litre diesel and QR25DE 2.5‑litre petrol engines. The Nissan Electronic Parts Catalogue (D23/NP300) lists a genuine water pump assembly and gasket for these engines, and major aftermarket catalogues (Gates, Dayco, Aisin) publish direct‑fit pumps for 2015–2018 NP300 Navara models. That all points to the pump being standard equipment, not optional.

The pump’s job is simple but critical: it keeps coolant moving through the block, head, heater core and radiator so the Navara holds temperature when commuting, hauling gear or towing the boat to the coast. On the D23 it’s driven by the accessory belt at the front of the engine, using an internal mechanical seal and bearings. When everything’s healthy, it helps maintain stable operating temperature, protects the turbo‑diesel from heat soak after hard work, gives reliable cabin heat, and prevents hotspots that can lead to gasket damage.

There’s no fixed replacement interval because the D23 uses a timing chain, not a timing belt. Instead, it’s a “replace on condition” item. Smart servicing for a 2016 Navara looks like this: keep the coolant fresh (use the correct Nissan‑spec long‑life coolant and distilled water if mixing), check the level and condition at every service, and have the belt, idler and tensioner inspected. Any pink/green crust around the pump housing or weep hole, a sweet coolant smell, bearing rattle/whine, wobble at the pulley, unexplained overheating, or poor heater output are all red flags.

• Replace the pump if there’s leakage, bearing noise, play at the pulley, or repeat overheating.
• When replacing, fit a new gasket/O‑ring, renew coolant, consider a fresh accessory belt and thermostat, and bleed the system properly (vacuum fill or careful manual bleed to avoid air pockets).
• A workshop pressure test after bleeding is a good idea.

Most workshops in Australia and New Zealand take around 2–4 hours depending on engine and access. As a rough guide, parts typically range from mid‑hundreds for quality aftermarket to higher for genuine, with fitted prices commonly falling in the $500–$1,200 AUD ($550–$1,300 NZD) band. Pricing varies by engine, brand and region, so getting a quote with the VIN handy is the best move.

Does a 2016 Nissan Navara have a water pump and where is it located?

Yes. It’s mounted at the front of the engine and driven by the accessory belt. On the 2.3‑litre YS23 diesel it sits low on the timing cover area, on the 2.5‑litre QR25 petrol it’s at the front of the block near the alternator. Exact position can vary slightly by trim and accessories, so checking by engine code is helpful.

What are the common signs the Navara’s water pump is failing?

Coolant drip or crust around the pump or under the vehicle, a sweet coolant smell, bearing whine or rumble that changes with revs, pulley wobble, rising temperatures at idle or under load, poor cabin heat, or frequent top‑ups. If the temp gauge climbs, stop and let it cool—driving overheated can snowball into head and gasket damage.

How often should it be replaced and what does it cost?

There’s no set kilometre interval, replace it on condition or when doing a major cooling system refresh (coolant, belt, tensioner, thermostat). Typical fitted pricing is about $500–$1,200 AUD ($550–$1,300 NZD), depending on parts choice and labour time. Using quality parts and correct coolant pays off in longevity.