Auto Parts Knowledge Database

What it does, when it fails, what it costs, and how long it lasts — for every major car and truck component.

electrical (3)

$250–$850 · 80,000-150,000 miles or 7-10 years

$200–$750 · 100,000-150,000 miles

Vehicle Battery

$130–$350 · 3-5 years (2-4 in hot climates)

brakes (2)

$150–$450 · 30,000-70,000 miles (city) / 50,000-80,000 (highway)

$200–$700 · 50,000-80,000 miles (often replaced with pads)

engine (7)

$1200–$4500 · 100,000-180,000 miles (longer with strict oil-change intervals)

$80–$450 · Copper 20k-30k mi; platinum 60k-80k mi; iridium 100k-120k mi

$80–$600 · 80,000-120,000 miles

$700–$1800 · 100,000-150,000 miles

Serpentine Belt

$120–$400 · 60,000-100,000 miles

Catalytic Converter

$900–$2800 · 100,000-150,000 miles

Diesel Particulate Filter (DPF)

$1500–$6000 · 150,000-300,000 miles (cleanable, eventually replaced)

cooling (3)

$350–$1100 · 80,000-120,000 miles (often replaced with timing belt)

$450–$1400 · 80,000-150,000 miles

$150–$500 · 80,000-120,000 miles

fuel (2)

$350–$2200 · 100,000-150,000 miles (less on dirty fuel)

$450–$1400 · 100,000-150,000 miles

sensors (1)

Oxygen (O2) Sensor

$250–$600 · 60,000-100,000 miles

suspension (1)

Shock Absorbers & Struts

$350–$1500 · 50,000-80,000 miles

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