2006-2011 Mercedes-Benz ML-Class / AMG (W164) CCB Big Brake Kit | Alcon RC6 6-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2006-2011 Mercedes-Benz ML350 / ML500 / ML550 / ML63 (W164) CCB Big Brake Kit — Genuine Alcon RC6 6-Piston Caliper Front + Genuine Alcon RC4 4-Piston Caliper Rear Setup
The W164 ML350, ML500, ML550 and ML63 are heavy SUVs, so repeated braking can punish iron rotors with heat, dust and steering-end mass. This StopFlex kit uses 380mm carbon-ceramic rotors at all four corners with a Genuine Alcon RC6 6-Piston Caliper front setup and Genuine Alcon RC4 4-Piston Caliper rear setup for higher heat capacity, lower brake dust and reduced unsprung weight versus comparable iron hardware. Each kit is built around the confirmed trim, because standard W164 models and the ML63 AMG can differ in brake mounting geometry and wheel clearance.
- 380mm front and rear carbon-ceramic rotors require 19-inch or larger wheels on the W164 ML-Class; spoke clearance is checked separately from diameter.
- Front braking is handled by the exact Genuine Alcon RC6 6-Piston Caliper specified for this kit, paired with carbon-ceramic rotors, pads, hats, hardware and lines.
- ML350, ML500, ML550 and ML63 orders are not treated as one platform fitment; StopFlex matches brackets and rotor-hat offsets to the exact confirmed trim.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Mercedes-Benz ML350 / ML500 / ML550 / ML63 (W164) |
| Model years | 2006-2011 |
| Front setup | Genuine Alcon RC6 6-Piston Caliper / 380mm |
| Rear setup | Genuine Alcon RC4 4-Piston Caliper / 380mm |
| Page type | Complete CCB kit upgrade |
| Minimum wheel size | 19" (for the 380 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 380 mm front rotor, so the minimum wheel size is 19". Wheels under 19" 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 Alcon RC6 6-Piston Caliper, giving the W164 a six-piston clamp package designed to spread pad pressure more evenly across the 380mm rotor face and support a firmer, more controlled pedal under heat. Alcon is a recognized performance brake manufacturer, and this genuine caliper is paired here with StopFlex carbon-ceramic rotors, trim-specific hats, brackets, lines and pads rather than a generic caliper swap. Its rigid performance-caliper construction is selected for a heavy SUV that loads the front brakes hard during repeated stops.
Rear Caliper (Balance)
The rear axle uses the Genuine Alcon RC4 4-Piston Caliper with a 380mm carbon-ceramic rotor to keep rear torque contribution matched to the upgraded front axle. On the W164, parking-brake function is handled by a mechanical foot-operated system, not an electronic parking brake caliper motor.
Front & rear, engineered together: The RC6 front and RC4 rear package is engineered as a four-corner system so the W164 does not gain front bite at the expense of rear stability. Matching rotor diameter, pad specification, hat offset and caliper mounting front-to-rear helps preserve predictable brake bias during high-speed stops and downhill heat cycles.
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 Alcon RC6 6-Piston Caliper |
| Front CCB rotors | 380mm |
| Rear calipers | Genuine Alcon RC4 4-Piston Caliper |
| Rear CCB rotors | 380mm |
| 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. |
FAQ
Will this 380mm kit fit my exact W164 ML350, ML500, ML550 or ML63?
Fitment is confirmed by exact year, trim, hub data and wheel package before build. StopFlex does not assume that an ML350 and ML63 share the same bracket or hat offset just because both are W164 models.
What wheel size do I need for the 380mm rotors?
The minimum wheel diameter is 19 inches because wheels under 19 inches will not clear the 380mm rotor package. Spoke clearance still has to be checked against the Genuine Alcon RC6 6-Piston Caliper front profile.
Will the parking brake still work?
Yes, the kit is designed around the W164’s factory mechanical parking-brake layout. This chassis does not use an electronic parking brake rear caliper motor, so there is no EPB actuator to retain or reprogram.
Why choose carbon-ceramic instead of another iron big brake kit on this ML-Class?
Carbon-ceramic rotors reduce brake dust and unsprung mass while handling repeated heat cycles better than typical iron rotors. On a heavy W164 SUV, that matters for pedal consistency, wheel cleanliness and steering response.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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