As of 2026, replacing a catalytic converter on a 2008 Honda Ridgeline typically ranges from roughly $300 to $1,500 for parts and labor, with aftermarket parts on the low end and OEM parts on the high end.
Part options and price ranges
Prices vary by part type. The following ranges reflect common market options for this model as of 2026.
- Aftermarket direct-fit catalytic converter: $180-$500
- OEM Honda catalytic converter: $600-$1,000
- Used salvage catalytic converter: $100-$300
Choosing an aftermarket unit can save money while still meeting emissions standards in many cases, though OEM parts offer guaranteed fit and warranty. A used converter is the most affordable option but carries more uncertainty about remaining life and reliability.
Installation costs and factors
Installation prices vary by location and shop, and may include sensor work or mounting hardware. Typical labor costs to replace a catalytic converter on a Ridgeline are:
- General repair shop: $100-$300
- Dealership or specialized exhaust shop: $150-$350
Additional costs to consider include oxygen sensor replacement (if faulty): $50-$150. That means the total installed price commonly ranges from about $300 on the low end (aftermarket part, basic labor) to around $1,100-$1,500 or more with OEM parts and higher labor rates.
Where to buy and what to watch for
Possible sources include official Honda parts departments, aftermarket retailers, online marketplaces, and salvage yards. Each option carries trade-offs in price, fit, and warranty:
- Dealership (OEM): typically the most expensive but best fit and warranty
- Auto parts stores or online retailers (aftermarket): cheaper with warranty; confirm direct-fit design for the Ridgeline
- Salvage yards (used): lowest price but higher uncertainty about life expectancy and emissions compliance
Always verify emissions compliance and warranty terms. If your region requires periodic inspections, ensure the replacement will pass and that the installation is performed by a qualified technician.
Summary
For a 2008 Honda Ridgeline, catalytic converter replacement costs depend on part choice and labor, typically ranging from about $300 to $1,500 installed. Aftermarket direct-fit parts are usually the most affordable option, OEM parts the most expensive, and labor rates vary by locale. Shop around, obtain written quotes, and choose a reputable shop to ensure proper fit and emissions compliance.