Car dealers (not just Mitsubishi) who sell parts on-line usually charge a ton for shipping. The average new car dealer parts department is not set up for efficient operation as an online retailer. Most aren't set up for efficient operation as a parts department.
So while they might be discounting their already overpriced parts by 30%, sometimes that still doesn’t make up for the overhead they are charging you to package and ship your order. Call your local dealer to get their price, too. Even if it’s full retail, it may be cheaper when you factor in shipping.
Shipping in general is getting crazy. We’re all used to “free” shipping. Occasionally I need to ship something UPS/FedEx. Even the smallest/lightest box seems to cost $20 even if it’s only going 100 miles. If you have to pay retail shipping rates at UPS/FedEx these days, it’s pretty outrageous if the shipment is heavy or remotely bulky. No doubt these dealers are charging retail shipping rates and probably adding a few dollars on top of that to pay for the 5 minutes of time it took their parts guy to print a shipping label.
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View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)