Big Brake Kit
XYZ Racing Hollow Rear Brake Kit — Toyota ALPHARD IV (AH40) 4WD (2023-2026)
SKU: XYZ-BRK-BKR-TO-031-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø356–421 mm
- Caliper pots6 / 8-pot
- Lead time10–15 working days
Fits Toyota ALPHARD IV (AH40) 4WD (2023-2026)
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Caliper render for this kit:
The fourth-generation Alphard carries more than two tonnes on the TNGA-K platform before anyone climbs aboard, and in AH40 4WD trim there is extra driveline hardware loading the rear axle. Hauling that mass down from motorway speeds, repeatedly, is what cooks a standard rear brake. The XYZ Racing Hollow Rear Brake Kit for the Toyota Alphard IV (AH40) 4WD adds the rotor mass and thermal headroom this luxury MPV was never given from the factory.
This is a rear-axle kit aimed at owners who actually use the Alphard as it was built to be used: full of passengers, covering long distances, often on gradients where a heavy people-mover leans hard on its brakes. Supplied as a matched pair of rear calipers and two-piece floating discs, the hollow-vane rotor design keeps rotating mass in check while giving the rear discs more material to soak up and shed heat.
What this brake kit does for your 2023-2026 Toyota ALPHARD IV (AH40) 4WD
With more than two tonnes to arrest, the rear axle on a loaded Alphard does far more work than most drivers expect, and that shows up as a soft, lengthening pedal on a long descent. The larger rear discs in this kit resist that fade, so the brake pedal stays firm and predictable when you are carrying a full cabin. Pad choice matters here: the Street compound suits everyday chauffeur and family duty, the Sport compound copes with heavier loads, fast-road driving and the occasional track day, and the Racing compound is there if the van leads a hard life. Because the rotor is a hollow-vane two-piece floating disc rather than a solid casting, you add stopping power without piling on the unsprung and rotating mass that would blunt the AH40’s ride. The result is shorter, more confident stops and a back axle that recovers between them.
About the Hollow Rear Brake Kit
The Hollow Rear Brake Kit takes its name from its lightweight rotor construction: rather than a solid casting, the disc uses a hollow-vane design to cut rotating mass while preserving the swept area and venting that a heavy vehicle relies on to manage heat. The discs are two-piece and floating, with a lighter alloy bell that drops unsprung weight. It is a rear-specific package, sized for the Alphard’s back axle rather than adapted from a generic fitment, and the matched caliper is hollow-bodied as standard, with an optional Hollow Racing upgrade that loses the dust cover, is rated to 1000C and carries a two-year warranty for the hardest use.
The kit offers three pad compounds: Street for quiet daily running, Sport for fast-road and occasional track work, and Racing for sustained circuit temperatures. Calipers are offered in red, yellow, gold, black and anodized black at no extra cost, with a Custom Color in any Pantone, premium polished-forged finishes in titanium, polished gold or polished silver, and candy finishes in teal, blue, red or orange. Discs are drilled or slotted at the same price, and the centre bell can be specified as two-tone anodized in five colours or titanium. Everything is specified around the simple reality that a luxury MPV this size needs honest thermal capacity at the rear, not just at the front.
Fitment for the Toyota ALPHARD IV (AH40) 4WD (2023-2026)
This kit is built specifically for the fourth-generation Toyota Alphard, chassis code AH40, in 4WD form, across the 2023 to 2026 model years. It fits the rear axle only, supplied as a matched left-and-right pair. Confirm your variant against the AH40 designation before ordering, and pick the pad compound that matches how you use the van.
What buyers also search for
- Toyota Alphard AH40 rear brake upgrade for heavy, fully loaded motorway use
- Toyota Alphard IV 4WD brake kit pad options for chauffeur, family and harder duty
- Toyota Alphard rear big brake kit that resists fade on long descents
- Hollow-vane rear discs that add stopping power without heavy unsprung mass
- Caliper colour choices for the Alphard, from red and black to gold or a custom finish
Choose your pad compound, disc style and caliper colour from the configurator above when you order your Alphard rear brake kit.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 356–421 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 6 / 8-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
Parking brake: Electronic parking brake (EPB) compatible.
Choosing your spec
Every kit is built to order around the choices you make above. Here is what each option actually changes, so you can spec yours with confidence.
Brake pads — Street, Sport or Racing
Every kit ships with a full set of high-performance pads; the compound is your call.
Street is the right default for fast-road driving — a strong, progressive cold bite with low noise, low dust and long disc life. Sport raises the working temperature and adds bite and fade resistance for hard road use and the occasional track day, while still behaving on a cold morning. Racing is a track compound built for sustained abuse: huge fade resistance and bite once heat is in it, at the cost of more noise and dust when cold. Match the pad to how hard you actually use the brakes — there is no benefit to a race pad that never gets up to temperature.
Caliper grade — Hollow vs Hollow Racing
Hollow is the standard caliper on every kit: a hollow-body forged caliper, lighter than a solid one, fitted with a dust cover and backed by a 5-year oil-leak warranty. For most fast-road and spirited track use it is all the caliper you need.
Hollow Racing is the track-grade upgrade. It runs the same hollow body but without a dust cover (so there is nothing to melt at sustained high temperature), uses a twin-metal piston that isolates heat travelling from the disc to the oil seal, and is rated to 1000°C. Available 330–356mm (rear). Warranty is 2 years on oil leaks and 10 years on appearance. Built for professional racing and repeated track days.
Caliper colour & finish
Painted colours (Red, Yellow, Gold, Black, Anodized Black) are included at no cost. Want an exact match to your car? Custom Color (+£150) paints the calipers to any Pantone code you supply (15–20 day lead time).
Polished Forged finishes are the flagship: a forged caliper given a mirror-polished surface treatment that shifts colour with the viewing angle. Beyond the looks, the polished surface dissipates heat better, resists rust and stands up to the weather. Choose Titanium (neochrome, +£350), Polished Gold (+£300) or Polished Silver (+£250). They look their best paired with a titanium centre bell. Care: clean only with a dilute neutral cleaner or water.
Candy colours (+£200) use a deep candy-paint and polishing process for a mirror-reflection, boutique finish — pick Teal, Blue, Red or Orange (shown below right).
Centre bells
The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. The standard anodized centre bell is included. The Two-tone bell (+£200) adds an anodized accent ring — choose Red, Yellow, Orange, Purple or Silver right here at checkout. The Titanium centre bell (+£500) is a forged titanium bell (bolts not included) that finishes off the polished-forged look.
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