2012-2015 Mercedes-Benz ML-Class / AMG (W166) CCB Big Brake Kit | Akebono 10N 10-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2012-2015 Mercedes-Benz ML350 / ML400 / ML500 / ML550 / ML63 (W166) CCB Big Brake Kit — Genuine Akebono OEM Porsche 10-Piston (10N) Caliper Front + Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper Rear Setup
The W166 ML350, ML400, ML500, ML550, and ML63 are heavy SUVs, so repeated high-speed braking can overload factory iron hardware with heat, dust, and rotor mass. This StopFlex kit uses a 420mm front carbon-ceramic rotor with a Genuine Akebono OEM Porsche 10-Piston (10N) Caliper and a 410mm rear carbon-ceramic rotor with a Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper to increase thermal capacity while reducing unsprung brake weight. Each kit is engineered for the buyer’s exact W166 trim, because ML63 AMG and non-AMG ML models can require different brackets, rotor-hat offsets, and wheel-clearance checks.
- 420mm front rotors require 21 inch or larger wheels on the W166 ML-Class; wheels under 21 inches will not clear the rotor package, and spoke clearance must also be checked.
- Front braking is handled by the Genuine Akebono OEM Porsche 10-Piston (10N) Caliper, matched to a 420mm carbon-ceramic rotor for the front axle load of the ML-Class SUV.
- Rear braking uses a 410mm carbon-ceramic rotor with a Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper so the rear axle is engineered with the front upgrade instead of left as an iron-rotor mismatch.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Mercedes-Benz ML350 / ML400 / ML500 / ML550 / ML63 (W166) |
| Model years | 2012-2015 |
| Front setup | Genuine Akebono OEM Porsche 10-Piston (10N) Caliper / 420mm |
| Rear setup | Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper / 410mm |
| Page type | Complete CCB kit upgrade |
| Minimum wheel size | 21" (for the 420 mm front rotor) |
Every StopFlex kit is bespoke-engineered for your exact model and trim — the brackets, rotor-hat offsets, and caliper mounting are matched to your specific car, not assumed from the platform. This matters because trims that share a chassis name can differ mechanically: a pure M or performance variant often carries different front knuckles/uprights, hub geometry, and wheel axial (ET) clearance than the standard models in the same family, so a bracket and hat offset that bolt onto one are not the same parts that fit the other. StopFlex supplies the calipers, pads, rotor hats, floating hardware, and brake lines as a matched system built to your confirmed trim. Cars with modified knuckles, modified uprights, or non-factory suspension mounting points must be reviewed before ordering and are not treated as direct-fit.
This setup uses a 420 mm front rotor, so the minimum wheel size is 21". Wheels under 21" will not clear the caliper and rotor, and spoke profile and offset affect clearance too — confirm your exact wheels before ordering.
| Wheel Size (Standard) | Disc Range |
|---|---|
| 15" | 260 mm – 285 mm |
| 16" | 285 mm – 300 mm |
| 17" | 300 mm – 330 mm |
| 18" | 330 mm – 355 mm |
| 19" | 355 mm – 380 mm |
| 20" | 380 mm – 400 mm |
| 21" | 400 mm – 420 mm |
| 22" | 420 mm – 440 mm |
Caliper Overview — Front & Rear Balance
Front Caliper (Primary Upgrade)
The front axle uses the Genuine Akebono OEM Porsche 10-Piston (10N) Caliper, a ten-piston OEM-derived performance caliper selected for broad pad support, high clamp distribution, and stable pedal response on a 420mm rotor. Its multi-piston layout spreads pressure across the pad face, which helps control taper wear and pedal consistency during repeated braking in a heavy W166 chassis. StopFlex mounts it with trim-specific brackets and hat offsets rather than assuming every ML350, ML550, and ML63 shares the same front geometry.
Rear Caliper (Balance)
The rear axle uses a Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper with a 410mm carbon-ceramic rotor to keep rear contribution and brake stability matched to the larger 420mm front package. Because the W166 ML-Class uses an electronic parking brake system, rear integration is confirmed during fitment review so parking-brake function is addressed rather than bypassed.
Front & rear, engineered together: A 420mm front-only conversion can shift temperature, pad compound, and torque balance away from the rear axle. This StopFlex kit pairs the front Akebono ten-piston package with a Brembo four-piston rear carbon-ceramic setup so rotor diameter, pad behavior, and hydraulic response are engineered as one system for the confirmed W166 trim.
Make It Yours — Color & Logo Customization
Every StopFlex kit-upgrade order can be finished with custom caliper colors, a custom caliper logo, and custom rotor hat colors, so the brake package matches your exact build instead of a fixed off-the-shelf look.
- Custom caliper color
- Custom caliper logo
- Custom rotor hat color
Why StopFlex CCB
Lower Unsprung Mass
StopFlex carbon-ceramic rotors are engineered to reduce rotor mass versus comparable iron discs, helping the suspension react cleaner and the steering feel more precise.
High-Temperature Stability
The carbon-silicon-carbide matrix is built for stable braking behavior at temperatures that can push iron rotors into heavy fade.
Rust-Free Rotor Surface
Carbon ceramic does not form orange flash rust after rain, washing, or storage, keeping the visible rotor face cleaner behind open wheels.
Long Street-Service Potential
In normal road use with matched pads and proper bedding, StopFlex CCB rotors are designed for far longer service life than typical iron replacement rotors.
Low Visible Dust
When paired with matched StopFlex pads, the system produces very low visible brake dust compared with conventional iron rotor and pad combinations.
Premium Ceramic-Glaze Appearance
StopFlex's proprietary coating creates a bright, high-end ceramic-glaze finish with subtle glaze texture and a more premium visual character behind open wheels.
Street-Usable Cold Bite
Street Spec and Track-Day Spec rotors are designed for normal first-stop road use, including cold-weather operation. Motorsport Spec is the competition-focused exception.
Continuous Fiber Reinforcement
Long-fiber carbon ceramic construction improves structural strength and thermal durability versus chopped-fiber approaches.
Heat Management Note
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat can still soak into pads, fluid, seals, calipers, wheels, and nearby components. For long track sessions, mountain descents, or sustained aggressive driving, brake cooling and high-temperature fluid are still recommended.
Street / Track-Day / Motorsport Rotor Options
Street Spec
Ceramic coating, cross-drilled face, and large cooling channels.
Best for daily driving and premium street builds that need clean cold bite, low dust, corrosion-free appearance, and long service life.
Track-Day Spec
Ceramic coating, blank face, and honeycomb cooling channels.
Best for fast-road and track-day use where repeated braking stability matters more than maximum visual drilling style.
Motorsport Spec
Uncoated blank face with honeycomb cooling channels.
Best for race-focused builds that run competition pads, high-temperature fluid, cooling strategy, and a proper warm-up window. Not the default street choice.
Package Scope
| Item | Details |
|---|---|
| Front calipers | Genuine Akebono OEM Porsche 10-Piston (10N) Caliper |
| Front CCB rotors | 420mm |
| Rear calipers | Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper |
| Rear CCB rotors | 410mm |
| CCB brake pads | Matched for the supplied StopFlex carbon ceramic rotors |
| Rotor hats and floating hardware | Vehicle-specific hardware package |
| Brake lines | Included for complete kit-upgrade orders |
| Color customization | Custom caliper colors, a custom caliper logo, and custom rotor hat colors are available for every kit-upgrade order. |
| Order scope | Default listing is full-car set when front and rear are specified. Front-only or rear-only orders can be arranged after confirmation. |
EPB & Rear Caliper Options
This vehicle leaves the factory with an electronic parking brake (EPB) built into the rear brake, so the rear of the kit is built to keep that EPB working. There are two rear paths. The first is a dual-caliper rear: a main performance caliper handles braking while a dedicated EPB actuator caliper is retained alongside it, so the electronic parking brake, auto-hold, and hill-start assist all keep working; on this path the rear performance caliper can be the TTSPORT EP4 / EP4S 4-piston caliper. The second is an EPB-integrated caliper, a single rear caliper with the electromechanical parking-brake motor built in for a cleaner install with fewer parts behind the wheel; on this path the rear is the TTSPORT EP4 / EP4S 4-piston caliper with integrated EPB. Which path fits best depends on your exact trim and EPB configuration, your budget, your appearance preference, and your wheel size and spoke clearance. Confirm your car's rear-brake configuration with StopFlex before ordering so the correct EPB-compatible rear option is built for your kit.
| Rear option | What it is | Rear caliper | Best when |
|---|---|---|---|
| Dual caliper (EPB retained) | Performance caliper plus a dedicated EPB actuator caliper, both fitted on the rear, so the factory electronic parking brake keeps working. | TTSPORT EP4 / EP4S 4-Piston Caliper | You want guaranteed factory EPB, auto-hold, and hill-start behavior preserved. |
| EPB-integrated caliper | A single rear caliper with the electromechanical parking-brake motor built in, for a cleaner install with fewer parts behind the wheel. | TTSPORT EP4 / EP4S 4-Piston Caliper with integrated EPB | You want a cleaner single-caliper rear with full EPB function. |
FAQ
Will this kit fit my exact ML350, ML400, ML500, ML550, or ML63?
StopFlex does not treat W166 fitment as one universal bolt-on package. Your exact trim is confirmed before production so the brackets, rotor-hat offsets, caliper mounting, and hub relationship are matched to that vehicle, especially when comparing ML63 AMG hardware to standard ML models.
What wheel size do I need for the 420mm front rotor?
The 420mm front rotor requires 21 inch or larger wheels. Wheels under 21 inches will not clear the rotor diameter, and 21 inch wheels still need spoke-clearance verification for the Genuine Akebono OEM Porsche 10-Piston (10N) Caliper.
Will the electronic parking brake still work?
The W166 ML-Class has an electronic parking brake, so rear fitment is reviewed around the vehicle’s EPB hardware and rear integration requirements. StopFlex confirms the rear configuration before production rather than assuming the Porsche-derived rear caliper package can be installed without an EPB plan.
Why change from the factory brake system to carbon ceramic on this SUV?
Carbon-ceramic rotors reduce brake dust and brake mass compared with iron rotors while giving the ML-Class more heat capacity for repeated high-speed stops. The 420mm front and 410mm rear rotor sizes are chosen for a heavy W166 chassis, not for cosmetic caliper clearance alone.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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