Kia Sorento Brake Discs: Specs, Fitment & Wear Symptoms

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

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OEM Part Number: 51712-2P700 (as quoted in catalogue listings — confirm via VIN) — aftermarket front discs Brembo 09.B614.10 / Bosch 0 986 479 786

Accuracy note: Covers the Kia Sorento (2015-2020) as listed in the UK aftermarket catalogues. Front brake discs are sold by diameter and thickness, and most models have two or three disc sizes depending on engine, brake size and trim — a 278 mm disc will not fit a car built with 300 mm brakes, so the caliper carrier and the disc must match. The references below are UK aftermarket catalogue listings for this generation, labelled by brand with diameter x thickness in mm; genuine numbers are shown only where a listing quotes one. Measure the old disc or check the brake size against your VIN before ordering, replace discs in pairs with new pads, and scrap any disc at or below its minimum thickness.

Front brake discs (aftermarket)	Brembo 09.B614.10 (321 x 28 mm, vented, 5 holes, high-carbon, Prime line, with bolts, min 26.4 mm); Brembo 09.D990.11 (340 x 30 mm, vented, 5 holes, coated high-carbon, Prime line, with bolts, min 28 mm); Bosch 0 986 479 786 (321 x 28 mm, vented, 5 holes, oiled high-carbon, ECE-R90, min 26.4 mm); TRW DF7973 (321 x 28 mm, vented, 5 holes, black painted); ATE 24.0128-0248.1 (321 x 28 mm, vented, 5 holes, coated alloyed/high-carbon, min 26.4 mm); Zimmermann 285.3516.52 (320 x 28 mm, vented, drilled, 5 holes, coated, Sport Coat Z, min 26.4 mm); febi bilstein 108408 (321 x 28 mm, vented, 5 holes, coated, min 26.4 mm, OE 51712-2P700); febi bilstein 174536 (340 x 30 mm, vented, 5 holes, coated, min 28 mm)
Disc sizes & variants	Two front sizes, 321 x 28 mm (the standard fitment across most of the range) and 340 x 30 mm (the larger brake on later and higher-output versions).
Genuine (OE) numbers quoted	51712-2P700 (febi bilstein 108408, 321 x 28 mm)
Fitment notes	Minimum thickness is 26.4 mm for the 321 mm disc and 28 mm for the 340 mm disc. Delphi BG9056C, Ferodo DDF1631C-1 and Brembo 09.E237.11 are listed for this model without a stated fitting position. Textar is not listed. The Ridex 82B0842 uncoated disc is listed for cars built up to November 2016.

A Genuinely Detailed, Real Technical Explanation Worth Knowing — Kia Sorento 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 Sorento Brake Discs: Watch: Replacing It

🎬 Watch: 2016 KIA SORENTO - HOW TO REPLACE FRONT BRAKE PADS & ROTORS - DIY

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Third-gen UM Sorento.

Kia Sorento Brake Discs: The Part That Pads Depend On

On the Kia Sorento, these two components wear together, and letting one go too long accelerates wear on the other, which is why a simple pad swap so often reveals discs that need replacing at the same time.

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.

Kia Sorento Brake Discs: 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 Sorento typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.

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Kia Sorento Brake Discs: 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.