These are the not the exact prices you can have rough idea about prices of parts for actual costing for the parts kindly share your model number.
Some spare parts Capacity, variety, volume, may be very. It totally depends upon spare parts
All Dell Laptops major parts and their costing is not listed under the price plan. You may have costing over phone.
These parts costing is not involved with fixing charges, that will be saperate from price of the parts.
You may order the Dell Spare parts only without taking fixing services etc.