Radiator & Coolant Reservoir Cap Prices
Current market data for 11,335 radiator and coolant reservoir caps.
What you'll usually pay
💡 Buying used saves about 25% here.
👉 In short easy summary
The market median is 32.95. The best value is found in scooter caps (-34%) and those manufactured in China (-44%), while German-made caps carry a 2% premium.
💚 Best value for your money
Price by machine type
Why? Prices vary by vehicle type, with Off-road and Dual Sport motorcycles at 32.95 and Scooters at 21.8.
Price by pressure rating
Why? Pressure specifications impact cost, ranging from 22.88 for 1.2-1.6 bar to 33.55 for 0.7-1.1 bar.
Price by country of origin
Why? Manufacturing location creates a wide spread between China at 18.32 and Germany at 33.55.
🛒 Some on sale right now
Common questions
What is the price difference between new and used caps?
New caps have a median price of 32.95, while used caps are lower at 24.76.
Which machine type has the most affordable caps?
Scooter caps are the most affordable with a median price of 21.8.
How does the country of origin affect the price?
Caps from China have the lowest median price at 18.32, whereas those from Germany are the highest at 33.55.
How we got these numbers
Worked out from 200 live eBay listings (price range $17–$48, odd outliers ignored). These are asking prices, so use them as a guide. Last checked August 13, 2026.