KTM 125 Duke Catalytic Converter
New, used, or aftermarket – from sellers across Europe.
Parts availability
Limited availability – hank searches the web for you.
Estimated price range
Widely available Limited Hard to find
Last updated: 25.10.2026, 07:49
Catalytic Converter for your KTM 125 Duke?
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In addition, sellers on hank can send you offers directly.
Prices from recent listings
| Source | Condition | Price (approx.) | Last seen |
|---|---|---|---|
| eBay | New | 121.00 € | 2026-10-25 |
| eBay | New | 367.71 € | 2026-10-25 |
| eBay | New | 121.00 € | 2026-08-23 |
| eBay | New | 129.73 € | 2026-08-23 |
| eBay | New | 131.70 € | 2026-08-23 |
| eBay | New | 144.00 € | 2026-08-23 |
| eBay | New | 145.69 € | 2026-08-23 |
| eBay | New | 185.73 € | 2026-08-23 |
Indicative values only – current prices may vary.
Price comparison: Catalytic Converter
Current median for the KTM 125 Duke: 144.84 €.
Median across all motorcycle models: around 190 €. This model is 25% below that and cheaper than 65% of the models compared.
Median across KTM motorcycle models: around 160 €. This model is 5% below that and cheaper than 65% of the models compared.
Compares the medians of the most recent offers found for each model.
Find KTM 125 Duke parts online
hank's free AI report searches specialized shops for KTM 125 Duke parts, including Motorcycle Parts Warehouse (MPW), KTM Direct & Hitchcocks Motorcycles.
About this part
The catalytic converter on your 125 Duke converts the pollutants in the exhaust and decides whether the emissions test passes. Rattling when pulling away, a loss of power from blocked ceramic or a lambda control fault all call for replacement.
Frequently asked questions
What should I check when buying a catalytic converter for the KTM 125 Duke?
Emissions standard, engine code and flange dimensions of your 125 Duke matter, because a converter for the wrong standard never brings the sensors into their control range. Look for a valid approval number on the housing and check that the lambda sensor bosses and heat shield are there.
A used original converter or an aftermarket one?
A used original fits without surprises and keeps the vehicle's approval, but tap it first to hear whether the ceramic has come loose. Aftermarket converters cost less yet need the matching approval, otherwise the roadworthiness test turns into a problem.
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