Brembo 6 Piston Big Brake Kit: 330–420 mm Rotor Paths
Reviewed by the SteedLuxParts engineering team
Last updated September 18, 2026
Brembo 6 piston big brake kit for 18 inch and larger wheels: rotor paths from 330 mm to 420 mm, with a VIN and wheel review before production
Set price
Quantity pricing updates automatically
$499.00
/ set
1-9 sets
Wholesale tier pricing Lower pricing for larger orders
1-9 sets
Sample or retail orders
$499.00/ set
10-49 sets
Small wholesale batch Recommended
$458.00/ set
Save $41 per set
50-199 sets
Core dealer volume
$418.00/ set
Save $81 per set
Product details
2 calipers; 2 rotors; 2 adapter brackets; mounting hardware; pad and hose scope fixed in the quotation
Shipping and lead time
Ships to
United States
Shipping
from $10.00
Delivery
about 20-35 business days
Fitment information
We check OEM wheels with the vehicle year and VIN in our database. For aftermarket wheels, we also need ET, J, spoke, and inner-barrel details.
Warranty and returns
5 years against manufacturing/quality defects only View the full returns policy.
Product information
Product Details & Fitment
The application shown on this page is a reference configuration. It is not a universal-fit claim and it is not the only vehicle application we can review.
Fitment review required
Confirm the vehicle and wheel before production
We check OEM wheels with the vehicle year and VIN in our database. For aftermarket wheels, we also need ET, J, spoke, and inner-barrel details.
- Vehicle model and year
- VIN / chassis number
- Wheel size
- OEM or aftermarket wheel
- Front calipers, rear calipers, or front and rear kit
| Brand | Brembo | Category | 6 Piston Brake Kits |
|---|---|---|---|
| SKU | BRK-BREMBO-6P-18UP | Minimum order quantity | 1 set |
| Compatible Vehicles | Multi-vehicle; BMW E30/E36/E46/E92 requests reviewed; fitment confirmed per VIN | Year Range | Chassis names are request labels, not fitment proof. |
| Supplementary Note | Front 6-piston big brake kit / rotor options by wheel size | Brake Line / Interface Notes | Hose scope and inlet type are fixed in the quotation; routing checked at full lock. |
| Front / Rear Axle | Front axle | Installation Type | Confirm before order |
| Additional Setup Required | Depends on the vehicle | Package Scope | Front axle kit |
| Brake Kit Notes | Six-piston front caliper kit for 18 inch and larger wheels; rotor paths 330 to 440 mm across 18–22 inch wheel sizes. | Included Brake Parts | 2 calipers; 2 rotors; 2 adapter brackets; mounting hardware; pad and hose scope fixed in the quotation |
| Warranty | 5 years against manufacturing/quality defects only | Packaging | Standard export packaging |
| Carton Size | 45 x 45 x 45 cm | Gross Weight | 45kg |
| MOQ | 1 set |
The six-piston record in four lines
Key takeaways
- What it is: the Brembo 6 piston big brake kit is a front axle set for 18 inch and larger wheels, quoted per axle pair and matched to the car by VIN.
- Rotor paths: 330 mm on the smallest wheel up to 420 mm, with 440 mm reviewed as a special case.
- What decides it: the vehicle record, the wheel barrel and spoke clearance — not the wheel diameter on its own.
- Before release: installation type stays Confirm before order until we’ve checked the vehicle and wheel file.
Record reviewed on 2026-09-19. It lists what is confirmed, what the buyer sends, and what stays open.
Who this record is for, and what it won’t claim
The record is written for importers, workshops and owners who are upgrading the front brakes on a large-wheel build — and who would rather check the car than trust a product name.
The buyer this is built for
Three groups use this page. An importer or distributor needs a repeatable fitment file before a batch order. A workshop wants the bracket and rotor plan to arrive with the kit. An owner with a 18 or 19 inch wheel build wants to know what has to be measured before money moves. All three start in the same place: the VIN, the wheel, and a photo of the barrel and spokes.
Used calipers and cheap kits circulate in this market, so the record stays boring on purpose. It describes parts and checks, and it leaves performance claims, brand stories and “no spacer needed” promises out of the page.
What this record does not claim
It isn’t an OE replacement record, and it doesn’t promise that every wheel in the size range clears every configuration. Cars with the same model year can leave the factory with different knuckles, brake packages and wheel options, which is why the VIN leads the file.
Brembo is the caliper-family name the aftermarket uses for this six-piston pattern. Nothing here claims Brembo authorization, sponsorship or an official Brembo warranty, and the warranty that applies comes from SteedLuxParts. If you need an authorized product with a factory warranty, buy from an authorized dealer.
What goes in the VIN file, from E30 to E92
Every request, whether it names a chassis like E30, E36, E46 or E92 or not, is quoted from the same seven fields. The table below is the list we work from.
| Field | Why it matters | What to send |
|---|---|---|
| VIN | Confirms the base vehicle and the original brake package | The VIN, plus model year and engine |
| Chassis or model name | A request label for filing, not fitment proof | Chassis code if you use one, for example E46 or E92 |
| Wheel data | Sets the starting rotor path | Diameter and width |
| Wheel photos | Spoke and barrel shape decide caliper clearance | One photo straight into the barrel, one across the spokes |
| Rotor preference | Two paths are usually open for one wheel size | The diameter you want reviewed, or ask us to propose one |
| Quantity and market | Drives the tier, the packing and the freight quote | Sets required, destination country, and whether it is a sample |
| Current brake photos | Shows what the kit is replacing | One photo of the current caliper and one of the hub area |
Rotor paths by wheel diameter, and what clearance needs
Planning reference only. The table sets a starting diameter for a wheel diameter; the final rotor diameter, bell height and offset are fixed against the vehicle record before we cut anything.
| Wheel diameter | Rotor path | Check before release |
|---|---|---|
| 18 inch | 330 mm or 355 mm | Barrel and spoke clearance on the actual wheel |
| 19 inch | 355 mm or 380 mm | The same check, plus the rotor bell and PCD record |
| 20 inch | 380 mm or 405 mm | Caliper-to-spoke gap on concave faces |
| 21 inch | 400 mm or 412 mm | Wheel build confirmed before the rotor is fixed |
| 22 inch | 420 mm, or 440 mm as a special case | Special confirmation and a longer production window |
Two measurements decide more than the diameter: ET – the offset between the wheel’s mounting face and its centre line – and the inner barrel profile behind the spokes. A wheel that measures correctly on paper can still touch the caliper face.
Three things we won’t say. We won’t call this kit a straight swap, because the bracket and the rotor bell are made for the vehicle. We won’t promise that no spacer is needed, because some wheel and caliper combinations need one and others need a different wheel. And we won’t treat a chassis name as proof: E30, E36, E46 and E92 are request labels, and the build in front of you is what gets checked.
What is on the record, and what the quotation fixes
| Component | On the record now | Fixed in the quotation |
|---|---|---|
| Calipers | 2 calipers, six-piston front | Finish and logo options |
| Rotors | 2 rotors, two-piece with a vehicle-specific bell | Diameter, face pattern and bell finish |
| Adapter brackets | 2 brackets, cut for the vehicle | Confirm the knuckle and bolt interface with photos |
| Mounting hardware | Bolts and washers for the bracket interface | Any extra hardware the build needs |
| Pads and hoses | Scope not fixed on this page | Quantity, compound and hose ends written into the quotation before payment |
- Caliper body, rotor bell and adapter bracket: 7050 aluminium alloy.
- Rotors: high-carbon cast iron.
- Output: one set covers one front axle pair; MOQ is 1 set.
The materials above are the ones on file. There is no test report or performance figure behind this page, and the pad and hose scope is deliberately left open until the quotation is written — two buyers with the same car can want different compounds and different hose ends.
Rotor bell – the aluminium centre that carries the disc on the hub – is machined to the vehicle, so the same friction ring can sit on two different cars with two different bells.
Chassis names follow the public model pages for the BMW 3 Series (E46), and the brand note follows the public entry for Brembo, both checked on 2026-09-19. Those pages identify a generation and a company; they say nothing about fitment on your car.
Six questions buyers ask before a VIN goes in
Will a six-piston kit fit under my current wheels?
Wheel diameter is only the first check. The barrel has to clear the rotor, and the spokes have to clear the caliper face; two wheels of the same size can give different answers. Send the VIN, the wheel size and photos of the barrel and spokes, and the answer comes back per car.
Is it a straight swap, and will I need spacers?
There is no blanket answer. The bracket and rotor bell are matched to the vehicle, the hoses are routed around the suspension, and some builds need a spacer or a different wheel. We don’t publish a no-changes promise for any configuration.
Why do you need the VIN and wheel photos?
The VIN confirms the base vehicle and the original brake package. The photos show the spoke and barrel shape that decide caliper clearance. One without the other leaves the fitment file half empty, which is how wrong kits get shipped.
What is actually in the box?
Calipers, rotors, brackets and mounting hardware are on the record. The pad, hose and accessory scope is written into the quotation before payment, so nothing is assumed from a listing photo.
Can you review my BMW chassis request?
Yes. E30, E36, E46 and E92 requests go through the same seven fields as anything else, and the chassis name is treated as a request label rather than proof. Some of those builds have their own pages on this site, and we point you there when the detail is already published.
Is this a genuine Brembo product with Brembo’s warranty?
Brembo is the caliper-family name the aftermarket uses for this six-piston pattern. This page is an independent record: it doesn’t claim Brembo authorization and doesn’t carry an official Brembo warranty. The warranty on the kit comes from SteedLuxParts, and if you need an authorized product with a factory warranty you should buy from an authorized dealer.
Photos of the kit, and the next step
These photos come from the kit library and the workshop set. They show the parts, the finishes and the packing work; none of them is a fitment record for a specific car.
The product photos show the caliper, rotor and finish options as photographed; the workshop images show a general installation sequence, a packing sheet and a loading scene. Clearance is not proved by a photograph; it comes from the vehicle record and the printed template. Send the VIN, the wheel photos and the rotor you want reviewed. The reply comes back with a rotor path, a bracket decision, the production window and the price.
Fitment resources before ordering
OE lookup, wheel size, packing, RFQ.
01
Buyer resource
OE lookup center.
Narrow the axle and brake package.
02 Buyer resource Buyer FAQ.Fitment, warranty, packing, quote answers.
03 Buyer resource Browse brake system products.Compare calipers and rotor kits.
04 Buyer resource Browse 6 Piston Brake Kits.Compare nearby variants first.
05 Buyer resource Shipping and claim support.Export packing and freight evidence.
06 Buyer resource Terms and claim rules.Approval, payment, shipping and return limits.
07 Buyer resource Request fitment review.Send model, year, VIN and wheel data.
08 Buyer resource Solutions and technical guide.Fitment, installation and packing checks.
09 Buyer resource Buyer application scenarios.Sourcing workflows for international buyers.
10 Buyer resource Wholesale and market support.Market routes and wholesale details.
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