Here are some general estimates for brake replacement on a 2003 Toyota 4 Runner:
Front Brake Pad Replacement
* Cost of Genuine Toyota Brake Pads: $50 - $100 per axle (set of 2)
* Labor Cost: $50 - $100 per axle
* Total Cost (Parts + Labor): $100 - $200 per axle
Rear Brake Pad Replacement
* Cost of Genuine Toyota Brake Pads: $50 - $100 per axle (set of 2)
* Labor Cost: $50 - $100 per axle
* Total Cost (Parts + Labor): $100 - $200 per axle
Brake Rotor Replacement
* Cost of Genuine Toyota Brake Rotors: $50 - $100 each
* Labor Cost: $50 - $100 per axle
* Total Cost (Parts + Labor): $150 - $300 per axle
Brake Caliper Replacement
* Cost of Genuine Toyota Brake Calipers: $200 - $300 each
* Labor Cost: $100 - $200 per caliper
* Total Cost (Parts + Labor): $300 - $500 per caliper
Please note that these estimates are approximate and can vary depending on specific vehicle configurations and local market conditions. It is always advisable to get quotes from multiple sources, including authorized Toyota dealerships and reputable independent auto repair shops, to get the best possible price. Additionally, if you have the necessary tools and expertise, you can save on labor costs by performing the brake replacement yourself.