Ford Ka+ Brake Discs: Specs, Fitment & Wear Symptoms

A vibrating steering wheel on the Ka+ is usually blamed on warped discs — but the real, more common cause is something else entirely.

Illustration for editorial purposes

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OEM Part Number: confirm via VIN — front discs (aftermarket) Brembo 09.A968.21 / Bosch 0 986 479 541

Accuracy note: Covers the Ford Ka+ (2016-2019) 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.A968.21 (258 x 23 mm, vented, 4 holes, coated, min 21 mm); Brembo 09.A968.24 (258 x 23 mm, vented, 4 holes, min 21 mm); Bosch 0 986 479 541 (257.9 x 23 mm, vented, 4 holes, oiled, high-carbon, min 21 mm); ATE 24.0123-0113.1 (258 x 23 mm, vented, 4 holes, coated, high-carbon, min 21 mm); TRW DF6399 (258 x 23 mm, vented, 4 holes, painted black, min 21 mm); Textar 92176005 (258 x 23 mm, vented, 4 holes, coated, high-carbon, min 21 mm); Brembo 09.A968.2X (258 x 23 mm, vented, 4 holes, coated, drilled, min 21.5 mm).
Disc sizes & variants	One front size for the whole KA+ range, 258 x 23 mm vented, shared with the 2008-2017 Fiesta.
Genuine (OE) numbers quoted	None quoted in catalogue listings — order genuine discs against your VIN
Fitment notes	All KA+ engines (1.2 Ti-VCT 70 and 85 PS, 1.5 TDCi) use the same 258 mm disc with a 21 mm minimum thickness and 4-stud 108 mm pattern.

Ford Ka+ Brake Discs: The Part That Pads Depend On

On the Ford Ka+, wear on one of this pair accelerates wear on the other, so a pad change booked as routine maintenance often turns up discs that have quietly deteriorated alongside them.

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.

"Warped Discs" Is Usually the Wrong Diagnosis

Vibration under braking gets blamed on warped discs more often than any other cause, but in the large majority of cases the discs haven't actually bent from heat at all. What's really happening is Disc Thickness Variation (DTV), uneven pad material deposits building up across the disc surface, often during the bedding-in period after a fresh fit, producing the same pulsing sensation as genuine warping. Bedding in new discs and pads gradually, avoiding hard braking in the first few hundred miles, measurably reduces the risk of this developing in the first place.

Ford Ka+ Brake Discs: Watch: Replacing It

🎬 Watch: Como TROCAR o DISCO DE FREIO do FORD KA 2014 a 2021 com ABS (Passo a Passo e Dicas Essenciais!) (non-english)

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Portuguese (Brazil); the 2014-21 Brazilian Ka is the same B562 car sold in the UK as Ka+.

Ford Ka+ 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 Ka+ typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.

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Ford Ka+ 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 Ford Brake Discs

The same part, covered across other Ford models.