Emissions Hardware Pricing
Market data for 17,848 emissions hardware and component listings.
What you'll usually pay
💡 Used ones cost about 112% more here.
👉 In short easy summary
Value is found in unbranded parts, which sit 35% below the market median. Conversely, private label components command the highest premium at 67% above the median.
💚 Best value for your money
Price by brand type
Why? Prices range from unbranded at 24.74 to private label at 63.72.
Price by brand
Why? Walker is the most expensive at 89.99, while Mopar is the lowest at 26.81.
Price by placement on vehicle
Why? Upper placement components cost 59.28, whereas rear placement parts are 27.92.
🛒 Some on sale right now
Common questions
What is the price difference between new and used emissions hardware?
New components have a median price of 29.54, while used components are higher at 62.57.
How do Genuine OEM parts compare to the market median?
Genuine OEM parts have a median price of 49.97, which is 31% above the market median.
Which vehicle placement is generally the most expensive?
Upper placement components are the most expensive with a median of 59.28.
How we got these numbers
Worked out from 200 live eBay listings (price range $11–$150, odd outliers ignored). These are asking prices, so use them as a guide. Last checked August 12, 2026.