Isuzu catalytic converters run about $50 to $350 for one original unit in 2026. The NPR and NQR diesel particulate filter leads at $100 to $350, gas NPR units bring $100 to $300, Trooper and Rodeo V6 units $75 to $250, and four-cylinder Rodeo units $60 to $200. Diesel oxidation catalysts sit at $50 to $250.
Isuzu is a working-vehicle brand, so most of the people reading this are not selling a converter. They are costing out a truck that is coming off the road.
Cost recovery at turnover
The useful figure is per vehicle, not per part.
An NPR or NQR retiring from a delivery or landscaping fleet holds two saleable components on a diesel truck: the oxidation catalyst at $75 to $250 and, on 2007 and later trucks, the particulate filter at $100 to $350. That is $175 to $600 off one vehicle.
A gas NPR holds a single large unit at $100 to $300. A Trooper or V6 Rodeo holds two at $75 to $250 each, so $150 to $500 across the vehicle.
Against the cost of the replacement truck those are small numbers. Against the alternative — the same parts leaving the yard as steel weight — they are the whole recovery. Over a fleet turning over four or five trucks, it is a real line rather than pocket change.
Isuzu catalytic converter scrap prices by model
Model Years Notes Indicative range (USD) Measurement Model years covered What sets the unit apart Buyer quotes for one complete unit, honeycomb intact NPR and NQR diesel particulate filter 2007 onward Large platinum-bearing filter, priced separately $100 to $350 NPR gas (GM 6.0 V8) 1999 to 2018 GM-sourced engine; graded on the Large GM class list $100 to $300 NPR and NQR diesel oxidation catalyst 1995 to 2018 Mostly platinum, almost no rhodium $75 to $250 Trooper and Axiom (V6) 1992 to 2004 Two units fitted $75 to $250 Rodeo and VehiCROSS (V6) 1991 to 2004 Two units; some carry GM converters $75 to $250 Rodeo and Amigo (four-cylinder) 1991 to 2003 One main unit $60 to $200 D-Max and Rodeo pickup (diesel) 2002 to 2018 Diesel oxidation catalyst, platinum-led $50 to $200 Manifold pre-cat, any model Various Small unit cast into the exhaust manifold $20 to $100 Aftermarket replacement, any model All years Universal unit, trace metal $5 to $50
Ranges are compiled from published core-buyer code lists, catalyst exchange transaction data and current scrap guides; they are not a live per-code feed. Figures are per unit, and V6 models carry two.
Gas or diesel: two different price lists
The NPR is sold both ways and the two versions have almost nothing in common at the scale. Confirming which you have takes thirty seconds and changes the number substantially.
The gas NPR runs a GM-sourced 6.0 litre V8. That matters more than it sounds: the converter is graded on the domestic GM class list rather than as an import unit, which puts it in Large GM territory at $100 to $300. If a buyer starts talking about GM classes on an Isuzu, they are not confused — the GM class reference explains the vocabulary.
The diesel NPR carries an oxidation catalyst using mostly platinum, with very little palladium and essentially no rhodium — roughly 2 to 3 grams of precious metal against 10 to 15 in a petrol unit. It brings $75 to $250. On 2007 and later trucks the particulate filter downstream is a separate, larger component at $100 to $350, frequently worth more than the catalyst ahead of it.
A single quote for “the exhaust” on a diesel NPR is a quote for one of two parts. This is the most common way money is left behind on this brand.
Your Isuzu may not be an Isuzu
This brand badge-engineered more widely than almost anything else on this site, and it works both directions.
The Rodeo alone was sold as the Honda Passport in the United States, the Opel and Vauxhall Frontera in Europe, and the Holden Frontera in Australia. Replacement converters are routinely listed as fitting the Isuzu Rodeo and Honda Passport interchangeably, under one part number.
Running the other way, some Rodeos left the factory with General Motors converters fitted, a legacy of the two companies’ long partnership.
Three consequences worth acting on. Quote the stamped code rather than the model name, because the code is the only thing that spans all those badges. Do not accept a lower offer on the grounds that Isuzu is an unfamiliar marque — the part may be listed under Honda or GM in the buyer’s own database. And if you are in Australia or Europe, the vehicle in your yard may be badged Holden or Vauxhall while carrying the same unit priced above.
Isuzu prices around the world
Platinum, palladium and rhodium settle in US dollars, so an Isuzu unit holds the same metal value in every market. Currency and local buyer depth are what change. The table converts the Isuzu span into each market’s money at today’s rate.
Market Currency Unit Equivalent range United States USD per unit $50.00 to 350.00 United Kingdom GBP per unit £36.99 to 258.90 Canada CAD per unit C$69.15 to 484.08 Australia AUD per unit A$69.38 to 485.69 Germany EUR per unit €43.05 to 301.38 India INR per unit ₹4,727 to 33,092 Bangladesh BDT per unit ৳6,146 to 43,025 United Arab Emirates AED per unit AED183.63 to 1,285 Saudi Arabia SAR per unit SAR187.50 to 1,313 Turkey TRY per unit ₺2,423 to 16,961 South Africa ZAR per unit R797.87 to 5,585 China CNY per unit CN¥335.97 to 2,352
These conversions are the metal-value anchor rather than a local quote. Isuzu’s commercial vehicles sell far more widely than its passenger models, and the D-Max in particular is a mainstay across Asia, Africa and Australia — so a large share of readers here are pricing diesel hardware rather than the petrol rows.
Selling as a business
A few practical points that apply when the seller is a company rather than an individual.
Proof of ownership is now standard on converter sales across most US states, along with photo identification. Selling from a business adds a step rather than removing one: expect to show that the company owns the vehicle the part came off.
Keep the paperwork with the parts. If four trucks are being retired together, a buyer quoting eight components wants to know which came off which vehicle, and a clean record is what gets a per-unit quote instead of a lump figure.
Ask about a volume tier. A fleet moving eight to ten units at once is a different customer from a walk-in seller, and the rate usually reflects that if you ask.
And check whether the units are original. Working trucks get exhaust repairs, and an aftermarket replacement brings $5 to $50 whatever badge the truck wears — a genuine Isuzu unit for a Rodeo lists new at several hundred dollars, while universal aftermarket parts for the same vehicle sell for under $60.
Questions people actually ask
How much is an Isuzu NPR catalytic converter worth?
On a diesel truck, $75 to $250 for the oxidation catalyst plus $100 to $350 for the particulate filter on 2007 and later vehicles — two separate parts. On a gas NPR with the GM 6.0 V8, a single unit at $100 to $300.
Is the gas NPR converter worth more than the diesel one?
Per part, usually yes. The gas truck’s GM-sourced unit is a three-way converter graded on the Large GM class list at $100 to $300, while a diesel oxidation catalyst is platinum-led at $75 to $250. But the diesel truck has two saleable components rather than one, so the vehicle total is often higher.
Do Isuzu Rodeo and Honda Passport converters price the same?
Generally yes, because they are frequently the same part. Replacement units are commonly listed as fitting both vehicles under one number. The same applies to the Opel and Vauxhall Frontera in Europe and the Holden Frontera in Australia.
How many catalytic converters does an Isuzu have?
V6 models including the Trooper, Rodeo and VehiCROSS carry two, one per exhaust bank. Four-cylinder Rodeos and Amigos carry one main unit. Diesel NPR and NQR trucks carry a catalyst plus, from 2007, a separate particulate filter.
Figures on this page are indicative buyer ranges for complete, uncut original units and are not offers to buy. Converter types, codes and selling rules are covered on the main catalytic converter price page.
Frequently asked questions
How much is an Isuzu catalytic converter worth as scrap?
Between roughly $50 and $350 for one original unit in 2026. Four-cylinder Rodeo units bring $60 to $200, Trooper and V6 Rodeo units $75 to $250 each, gas NPR units $100 to $300, and the NPR or NQR diesel particulate filter $100 to $350.
How much is an Isuzu NPR catalytic converter worth?
On a diesel NPR, $75 to $250 for the oxidation catalyst plus $100 to $350 for the particulate filter fitted from 2007 — two separate parts that should be quoted individually. A gas NPR with the GM 6.0 V8 carries a single unit worth $100 to $300.
Is a gas or diesel Isuzu NPR converter worth more?
Per part the gas unit usually leads, because it is a three-way converter graded on the Large GM class list at $100 to $300 against $75 to $250 for a platinum-led diesel catalyst. Per vehicle the diesel often wins, since it has both a catalyst and a particulate filter.
Do Isuzu Rodeo and Honda Passport converters price the same?
Generally yes. The two vehicles are the same design under different badges, and replacement converters are routinely listed as fitting both under one part number. The Opel and Vauxhall Frontera in Europe and the Holden Frontera in Australia are the same vehicle again.
Why is a buyer grading my Isuzu on GM classes?
Because some Isuzus genuinely carry General Motors converters, a legacy of the companies' long partnership, and the gas NPR runs a GM-sourced 6.0 litre V8. In both cases the unit is graded on the domestic GM class list rather than as an import.
How many catalytic converters does an Isuzu have?
V6 models including the Trooper, Rodeo and VehiCROSS carry two, one per exhaust bank. Four-cylinder Rodeos and Amigos carry a single main unit. Diesel NPR and NQR trucks carry an oxidation catalyst plus, on 2007 and later vehicles, a separate particulate filter.