Napier · Turbocharger

Napier NA397 Spare Parts

Genuine and Alang-reconditioned spare parts for the Napier NA397 marine exhaust-gas turbocharger — medium-speed 4-stroke marine main engines, large power generation, cruise-vessel propulsion. Shipped from Bhavnagar, India to any port worldwide.

Bhavnagar · beside Alang yard
24–48hr emergency dispatch
Genuine · OEM-equivalent · reconditioned
Measured to maker’s limits

Parameter	NA397
Maker	Napier
Model	NA397
Equipment	Marine exhaust-gas turbocharger
Application	Medium-speed 4-stroke marine main engines, large power generation, cruise-vessel propulsion

Figures as published for the NA397. We confirm against the nameplate before quoting.

NA397 Spare Parts We Supply

Rotor complete (shaft with turbine wheel)
Compressor wheel / impeller
Turbine blades
Nozzle ring
Cover ring
Diffuser
Journal (plain) bearings
Ball bearing sets
Thrust bearing
Bearing bush and sleeve
Complete cartridge assembly
Labyrinth seals
Sealing air pipes
Gas inlet casing
Gas outlet casing
Compressor casing
Silencer and filter element
Air filter mats
Lube oil pump (integral)
Oil sight glass
Speed sensor
Casing insulation segments
Water-washing kit
O-rings, gaskets and fasteners

Genuine, OEM-equivalent and Alang-reconditioned. Every reconditioned part is measured against the maker’s limits before it leaves us. If your part is not listed, send the part number — most Napier items are sourceable through the yard.

About the Napier NA397

The Napier NA397 is a marine exhaust-gas turbocharger. Built ~2013 – present (newer 7-Series flagship; supplied as retrofit on cruise-liner applications). Application: Medium-speed 4-stroke marine main engines, large power generation, cruise-vessel propulsion

Source: our Turbocharger spec research file (turbocharger/03-napier.md).

Why Source NA397 Parts from Wattmare?

We are in Bhavnagar, next to Alang — the world’s largest ship-recycling yard, and where reconditioned marine parts actually come from. We hold fast-moving items, source the rest through the yard and our trader network, and dispatch worldwide in 24–48 hours on emergency orders.

Salim Dholia
Wattmare · Bhavnagar / Alang, India

Related Napier Models

NA357 NA355 NA455 NA457 NA255 NT1-10 All Napier spare parts Turbocharger spare parts Reconditioned parts 24–48hr emergency

Frequently Asked Questions

What Napier NA397 spare parts do you supply?

Genuine, OEM-equivalent and Alang-reconditioned parts for the NA397, including rotor complete (shaft with turbine wheel), compressor wheel / impeller, turbine blades, nozzle ring, cover ring, diffuser. Send the part number for anything not listed.

What is the delivery time for NA397 parts?

Stock items dispatch the same or next working day from Bhavnagar. Emergency orders ship in 24–48 hours to any major port. Sourced items depend on the yard — we confirm a real date before you commit.

Are your NA397 parts genuine or reconditioned?

Both. We supply genuine and OEM-equivalent new parts, and Alang-reconditioned parts measured against the maker's limits before dispatch. We tell you which you are buying — we do not sell reconditioned as new.

Need NA397 parts?

Send the equipment number and part number. We quote with a real availability date, not a maybe.

WhatsApp for a quote Call +91 98252 08105