Expect roughly $500 to $3,000 to replace catalytic converters on a 2006 Honda Ridgeline, depending on whether one or both converters are replaced, the choice of aftermarket vs OEM parts, and local labor rates.
In practice, most owners see higher costs when replacing both converters or choosing OEM parts, while using aftermarket components for a single converter and moderate labor can keep the bill lower. The Ridgeline typically has two catalytic converters, and the job may involve sensors and other exhaust components, which can add to the total.
What affects the cost
Costs vary by several variables, including parts choice, the number of converters, labor rates, and whether sensors or other exhaust components must be replaced.
- Number of converters: The Ridgeline generally uses two converters; replacing one is cheaper than replacing both.
- Parts choice: Aftermarket vs OEM (Honda) parts; OEM parts cost more but are guaranteed to fit and may preserve warranty in some cases.
- Labor rates and time: Labor is a major portion of the total and varies by shop and region; replacing multiple components takes more time and money.
- Location and shop type: Dealer service departments tend to be more expensive than independent auto shops.
- Additional repairs: Rusted hangers, seized bolts, or faulty sensors can require extra labor or parts.
Prices can vary widely, so it’s wise to request itemized quotes and confirm what is included (parts, labor, sensors, and any disposal fees).
Typical price ranges for a 2006 Ridgeline
Below are ballpark ranges to help budget for a typical replacement scenario. Actual quotes will depend on parts and labor choices, plus local conditions.
- One catalytic converter replacement (aftermarket parts): about $300–$700 total
- One catalytic converter replacement (OEM parts): about $600–$1,200 total
- Two catalytic converters (aftermarket parts): about $700–$1,500 total
- Two catalytic converters (OEM parts): about $1,400–$2,800 total
Note: If oxygen sensors or upstream/downstream exhaust components are damaged or need replacement, expect additional costs on top of the ranges above.
DIY vs professional replacement
Installing a catalytic converter typically requires shop tools and welding or bolted connections. If you have the tools and experience, you can save on labor, but be aware of emissions testing and local regulations that may apply to DIY repairs.
- Pros of DIY: Lower cost by saving on labor; full control over parts selection.
- Cons of DIY: Requires exhaust welding (if needed), special tools, and knowledge; improper installation can cause leaks and emissions issues.
Always verify emissions requirements and local regulations before choosing a do-it-yourself path.
How to get accurate quotes
To ensure you receive an accurate, actionable quote, contact several shops and request itemized estimates that separate parts and labor, include any sensors or additional repairs, and note if a warranty is offered on the work.
- Ask for an itemized breakdown of parts and labor.
- Specify aftermarket vs OEM parts and whether a dealer warranty applies.
- Inquire about the number of converters required and whether any sensors will be replaced.
- Check for included diagnostics, installation hardware, and disposal fees.
Different shops may provide different warranties and turnaround times, so taking multiple quotes helps you compare value and service quality.
Summary
The cost to replace catalytic converters on a 2006 Honda Ridgeline varies widely, driven by how many converters are involved, the parts chosen, and labor rates in your area. Expect roughly $300–$700 for an aftermarket single-cat replacement, $600–$1,200 for OEM, and $700–$1,500 or more for aftermarket two-cat replacements, with OEM two-cat replacements potentially running $1,400–$2,800 or higher. Always obtain multiple, itemized quotes and confirm what is included, and consider whether sensors or other exhaust components will also need attention.