XYZ Racing Hollow Rear Brake Kit — Mercedes Benz GLS 350D 4MATIC X167 (2019-2026)

Stop a 2.4-tonne X167 from motorway speed once and the factory rear discs cope. Do it repeatedly, down an Alpine pass with seven aboard, or hauling a trailer off a slip road, and heat becomes the enemy. The XYZ Racing Rear Big Brake Kit for the Mercedes Benz GLS 350D 4MATIC X167 attacks that problem at the rear axle, where a heavy diesel SUV puts more thermal load through the back brakes than most owners expect.

This is a rear-specific upgrade built around two-piece floating discs that shed rotating and unsprung mass while opening up more surface area for heat to escape. Supplied as a matched pair of rear calipers and rear discs, and paired with a choice of Street, Sport or Racing pad compounds, it lets you match the GLS 350D’s braking to how you actually use the car: school run, long-haul cruising, or fully loaded towing.

What this brake kit does for your 2019-2026 Mercedes Benz GLS 350D 4MATIC X167

The first thing you notice on the road is pedal consistency. The OM656 inline-six makes its torque low and early, and the X167 carries real speed without fuss, which means the brakes are doing serious work to wash that mass off again. The two-piece floating discs run cooler and resist the fade that turns a firm pedal into a worrying one on a long descent. Specify the Racing compound for bite and heat tolerance under repeated heavy stops, the Sport compound for a wider heat range with firmer fast-road bite, or stay with Street pads for low dust and quiet daily running. Trimming rotating mass at the rear also steadies how the GLS settles under braking, helping a tall, air-sprung body that otherwise leans hard on its suspension. Across the 2019-2026 range it is a measured gain in braking confidence and front-and-rear balance, not a cosmetic one.

About the rear big brake kit

XYZ Racing’s rear big brake kit uses two-piece floating discs that remove material from the rotor’s structure to cut weight without losing the thermal mass needed to absorb heat; the ring is offered drilled or slotted at the same price. Less rotating mass lets the brakes spin up and slow down with the wheel more readily, and reduced unsprung weight gives the rear axle an easier job keeping the tyre planted. The kit ships with three pad compounds: Street for quiet, low-dust manners, Sport for a firmer everyday bite and a wider heat range, and Racing for sustained high-temperature work, so the same hardware suits a daily X167 or one that earns its keep towing. The caliper is hollow-bodied as standard, with a Hollow Racing upgrade (no dust cover, rated to 1000C, two-year warranty) for serious track use. Painted caliper colours are included at no cost in Red, Yellow, Gold, Black or Anodized Black; a Custom Color in any Pantone adds GBP 150, and premium polished-forged finishes (Titanium, Polished Gold, Polished Silver), candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange) and two-tone or titanium centre bells are all available, sitting visible behind the GLS’s large factory wheels. It is engineered as a rear-axle kit, sized to complement the front brakes on a 4MATIC car where composure under braking counts as much as outright stopping distance.

Fitment for the Mercedes Benz GLS 350D 4MATIC X167 (2019-2026)

This kit is cut specifically for the X167-generation Mercedes Benz GLS 350D 4MATIC, covering model years 2019 through 2026. It mounts to the rear axle of the 350D diesel variant with its inline-six and permanent 4MATIC drive. Confirm your exact build year against the 2019-2026 span before configuring, then choose your pad compound and caliper colour.

What buyers also search for

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• GLS 350D rear brake kit with Street, Sport or Racing pad options
• Mercedes GLS X167 caliper colour choices from Red through to Custom

Pick your pad compound and caliper colour, then configure your X167 GLS 350D rear brake kit using the options above.