Kia Sportage Brake Discs: Specs, Fitment & Wear Symptoms

On the Sportage, a steel spring joining the caliper halves can genuinely rub against corrosion buildup on hot discs.

Illustration for editorial purposes

OEM Part Number: 517122T000

Accuracy note: Kia has used different genuine part numbers across Sportage generations — always confirm your exact model year before ordering, since a 2017-2022 reference won't fit a 2009-2015 SL-generation car.

2021 (QL/NQ5 generation), front disc	Kia OEM: 517122T000
2017-2022, rear disc	Kia OEM: 58411-D3700 (electric parking brake models specifically — confirm your car has this before ordering)
SL generation (2009-2015), rear disc	262mm diameter, solid, 10mm thickness, 8.4mm minimum — Kia OEM: 584111H300 (also referenced as 584111H100)
Important	Genuine Kia discs are backed by the manufacturer's factory warranty — worth checking whether an aftermarket alternative offers comparable cover before assuming it's the better overall value.

A Genuinely Detailed, Real Technical Explanation Worth Knowing — Kia Sportage Brake Discs

If you're hearing a specific rubbing noise particularly noticeable after heavy braking downhill, this is genuinely worth knowing: a documented case on a related model traced this exact symptom to a steel spring that joins the two halves of the caliper, rubbing against a corrosion buildup at the edge of the disc, worsening as the disc heats up and expands.

A genuinely useful, real maintenance point worth knowing: a full strip-down and clean of the calipers typically isn't included as part of a standard annual service — worth having this done specifically every two to three years, since crud and rust building up in the pad guides can restrict proper movement and lead to uneven wear.

It's also genuinely worth knowing an honest consumer point: already-corroded discs on a genuinely new car can potentially indicate they weren't of merchantable quality, worth pursuing as a warranty claim. It's also worth knowing that a short drive after washing the car helps dry discs out properly.

Kia Sportage Brake Discs reference plate

The Part That Pads Depend On

Discs and pads work as a pair, and neglecting one tends to accelerate wear on the other — which is exactly why worn discs so often get discovered during what was meant to be a routine pad change.

Before you buy: disc size and design vary by trim, engine size and whether your car has the standard or "sport" brake package. Always confirm against your VIN before ordering.

What They Do

Brake discs provide the surface the brake pads clamp against to slow the car, converting momentum into heat through friction. Larger, sportier trims of the Sportage typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.

Wear Symptoms, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Brake Discs Guide for warning signs to watch for, confirming fitment against your VIN, and choosing a reliable aftermarket disc.

More Kia Brake Discs

The same part, covered across other Kia models.

Kia Sportage Brake Discs: Specs, Fitment & Wear Symptoms

OEM Part Number: 517122T000

A Genuinely Detailed, Real Technical Explanation Worth Knowing — Kia Sportage Brake Discs

Shop for This Part on eBay