BMW E90 Big Brake Kit | Front Six-Piston Fitment Review
Reviewed by the SteedLuxParts engineering team
Last updated August 25, 2026
Front six-piston BMW E90 big brake kit for 18-21 inch wheel planning. Confirm exact year, original brakes, wheel status, ET and J values before ordering.
Unit price
Quantity pricing updates automatically
$448.00
/ unit
1-9 units
Wholesale tier pricing Lower pricing for larger orders
1-9 units
Sample or retail orders
$448.00/ unit
10-49 units
Small wholesale batch Recommended
$380.00/ unit
Save $68 per unit
50-199 units
Core dealer volume
$350.00/ unit
Save $98 per unit
Product details
Front six-piston BMW E90 big brake kit for 18-21 inch wheel planning. Confirm exact year, original brakes, wheel status, ET and J values before ordering.
Shipping and lead time
Ships to
United States
Shipping
from $50.00
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
Warranty terms are confirmed with the order. 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 | steedluxparts | Category | Big Brake Kits |
|---|---|---|---|
| SKU | SLP-BMWE90-BBK-V6-6P-F-KIT | Minimum order quantity | 1 unit |
| Original Vehicle Setup | Standard factory setup | Market / Side / Direction | LHD / left-side market |
| Installation Type | Direct replacement | Additional Setup Required | No extra setup |
| Sold As | Left only | Packaging | Standard export packaging |
| MOQ | 1 unit |
Which BMW E90 Front Brake and Rotor Path Should Be Approved?
This BMW E90 big brake kit is a complete front-axle configuration with six-piston calipers, matched kit components and 18-21 inch wheel planning references. It is not approved from the model name or wheel diameter alone. The exact production year, vehicle version, market, original front brakes and wheel geometry must be recorded before the bracket and rotor path are released.
The original front-brake setup is the first configuration gate. It gives the supplier a basis for reviewing the mounting interface, rotor position and hose requirements. Wheel status is the second gate: OEM and aftermarket wheels need separate clearance checks, and aftermarket wheels require ET and J values. Incorrect year information can lead to bracket mismatch; unsuitable wheel geometry can leave insufficient space for the caliper.
Approval rule: provide the exact year, vehicle details, original front-brake information and wheel record before ordering. The rotor matrix below is a planning tool, not a fitment guarantee.
Four Fitment Checks Before Order
Vehicle identity
Provide the exact production year, vehicle version, market and VIN for private fitment review. The complete VIN is not published on this page.
Original front brakes
Record the factory caliper, rotor dimensions and mounting information so the new bracket and rotor relationship can be checked.
Wheel status
State OEM / ORIGINAL WHEEL or AFTERMARKET WHEEL and provide the actual wheel diameter. Diameter is only the start of clearance review.
Aftermarket geometry
For aftermarket wheels, provide ET and J values plus spoke and inner-barrel information where requested. These values affect usable caliper space.
Solution Summary – At a Glance
Vehicle scope
BMW E90 applications subject to exact vehicle and original-brake confirmation.
Brake position
Front axle with two six-piston calipers; rear brake parts are outside this package.
Rotor planning
345, 355 and 380 mm options are linked to the supplied wheel-size planning ranges.
Kit scope
Calipers, adapter brackets, rotors, pads and hoses are included in the stated quantities.
Product Configuration Paths
| Configuration path | Current scope | Approval basis |
|---|---|---|
| Complete front kit | 2 calipers, 2 brackets, 2 rotors, 4 pads and 2 hoses. | Vehicle, original-brake, bracket, rotor and wheel-clearance review. |
| 18-inch wheel plan | 345 or 355 mm rotor planning reference. | Actual wheel barrel, spoke space, rotor interface and approved template. |
| 19-inch wheel plan | 355 or 380 mm rotor planning reference. | Same fitment checks; the larger diameter is not automatically preferred. |
| 20-21-inch wheel plan | 380 mm rotor planning reference. | Actual wheel geometry, brake interface and final installation review. |
Configuration Specification Summary
| Item | Supplied information | Required confirmation |
|---|---|---|
| Product series | V6, used as a product-series reference. | Formal quotation controls the approved seller description and branding. |
| Caliper configuration | Two front six-piston calipers. | Confirm the approved front-axle bracket and rotor relationship. |
| Wheel range | 18-21 inch planning references. | Confirm actual wheel status, dimensions and physical clearance. |
| Rotor plan | 18 inch: 345/355 mm; 19 inch: 355/380 mm; 20-21 inch: 380 mm. | Confirm diameter and all remaining rotor interface dimensions before order. |
| Package | Complete front kit in the listed quantities. | Match the final quotation and packing list to this page SKU. |
Wheel and Brake Disc Selection Matrix
Planning reference only. Final selection requires the approved BMW E90 vehicle record, original front brakes, wheel status, aftermarket ET/J values, spoke profile, inner-barrel clearance and rotor interface data.
| Wheel reference | Rotor planning reference | Review before approval |
|---|---|---|
| 18 inch | 345 mm or 355 mm | Wheel barrel and spoke clearance, bracket version, rotor position and hose route. |
| 19 inch | 355 mm or 380 mm | Original brake envelope, wheel geometry, rotor interface and approved template. |
| 20-21 inch | 380 mm | Spoke shape, inner barrel, ET/J values for aftermarket wheels and full movement check. |
How Buyers Misapply the Matrix
Largest rotor does not mean approved rotor
The matrix shows candidate diameters, not a ranking. Rotor thickness, hat height, offset, mounting details and caliper centerline were not provided. Selecting 380 mm only because the wheel is large can create a configuration that does not match the approved bracket or original hub relationship.
Wheel diameter does not prove caliper clearance
Two wheels with the same nominal diameter can provide different spoke and inner-barrel space. For aftermarket wheels, ET and J values are required, but they must still be considered with the actual spoke profile, barrel shape and balance-weight position.
Common failure point: the wrong production year can result in a bracket that does not install, while unsuitable ET/J and spoke geometry can prevent the wheel from clearing the caliper.
Model and Specification Confirmation
| Control field | Current record | Order action |
|---|---|---|
| Page SKU | SLP-BMWE90-BBK-V6-6P-F-KIT | Keep this reference consistent on the enquiry, quotation and approved packing record. |
| Vehicle | BMW E90; exact year and version not supplied. | Provide the year, market, vehicle details and VIN for private review. |
| Original brakes | Not supplied. | Provide the original front caliper, rotor and mounting information. |
| Wheel record | 18-21 inch planning range; wheel status not supplied. | State OEM or aftermarket and provide required aftermarket dimensions. |
| Brand terminology | V6 product-series reference; third-party manufacture is not established. | Do not describe the kit as genuine Brembo without approved seller documentation. |
Material and Manufacturing Confirmation
Material grade, manufacturing process, finish system, testing, certification and performance results were not supplied for this page. They must be controlled by the approved product specification, drawing and formal quotation. This page therefore does not infer forged construction, CNC production, racing certification, road legality or a guaranteed braking improvement from the six-piston layout.
Before resale or installation, buyers should match any finish, logo, marking and component label to the approved order record. Product-series wording is useful for internal configuration control, but it does not establish a third-party brand, material claim or certification.
Component Interface Engineering
| Component | Quantity | Interface check |
|---|---|---|
| Front six-piston caliper | 2 | Approved bracket position, rotor centerline and wheel clearance. |
| Adapter bracket | 2 | Exact vehicle year, original mounting points and fastener specification. |
| Brake rotor | 2 | Diameter, thickness, hat height, offset, center bore and mounting details. |
| Brake pad | 4 | Pad shape and specification matched to the supplied caliper configuration. |
| Brake hose | 2 | Fitting type, routing, steering travel and suspension movement. |
A professional installer should verify fastener requirements, rotor runout, hose movement, wheel clearance and pedal operation using the approved installation information. The listed parts define package quantity; they do not replace vehicle-specific interface checks or prove that additional installation items are never required.
Complete Matched Kit vs Calipers Only
Complete front kit
The current package includes the calipers, brackets, rotors, pads and hoses needed for one matched front-kit quotation. This is the appropriate page scope for buyers who want one component list reviewed against the same vehicle and wheel record.
Calipers-only request
A calipers-only order creates a different matching task. The buyer or workshop must already control the rotor, bracket, pad, hose and hardware interfaces. Dimensions and assumptions from the complete kit must not be transferred to a calipers-only quotation without a separate review.
Buyer and Supply Scenarios
Retail customer
Provide vehicle, brake and wheel details and arrange installation by a qualified workshop.
Modification shop
Confirm measurements, mounting interfaces, clearance and installation documentation before booking work.
Distributor or importer
Use the page SKU and approved configuration record to separate E90 enquiries from generic BMW inventory.
B2B project buyer
Submit quantity and market requirements with the fitment record; commercial terms come from the formal quotation.
Procurement Specifics
| Procurement field | Current page information |
|---|---|
| Package contents | 2 calipers, 2 adapter brackets, 2 rotors, 4 brake pads and 2 brake hoses. |
| Carton size | 45 x 45 x 45 cm. |
| Gross weight | 45 kg. |
| MOQ | Use the formal quotation for current commercial terms. |
| Lead time | Use the formal quotation for current commercial terms. |
| Warranty | Use the formal quotation or approved warranty document for current terms. |
Packaging figures describe the supplied page brief and should be checked against the final packing list. They do not establish freight cost, shipping method, customs treatment or delivery time. Buyers should use the final quotation and shipment documents for current commercial and logistics terms.
Common Fitment Questions
Does an 18-inch wheel guarantee clearance?
No. The 18-inch entry only provides a 345/355 mm rotor planning path. Actual spoke shape, inner barrel, wheel status and the approved caliper template must still be checked.
Why is the exact BMW E90 year required?
The year is part of the vehicle record used to select the bracket and related interfaces. Incorrect year or vehicle information can result in a bracket that does not match the mounting points.
What should be provided for aftermarket wheels?
Provide wheel diameter, ET and J values, plus spoke and inner-barrel information where requested. A physical template or measurement may also be needed for final clearance approval.
Is the 380 mm rotor automatically selected for 19-inch wheels?
No. Both 355 and 380 mm are planning references for 19-inch wheels. Final selection depends on the approved vehicle, brake, bracket, rotor and wheel records.
Is this page for a front and rear kit?
No. The supplied scope is a front six-piston kit. Rear calipers, rear rotors and parking-brake components are not listed in this package.
Can this V6 kit be described as a genuine Brembo kit?
Not from the current brief. The page identifies a V6 product-series reference but does not establish genuine Brembo manufacture. Use only branding supported by the approved seller documentation.
What information is needed before ordering?
Provide the exact year, vehicle version, market, VIN for private review, original front brakes, wheel size and status, and aftermarket ET/J values where applicable.
Documentation and Order Confirmation
Before production or shipment, match the enquiry and formal quotation to page SKU SLP-BMWE90-BBK-V6-6P-F-KIT. Confirm the BMW E90 vehicle record, exact production year, original front brakes, selected rotor path, wheel status, aftermarket ET/J values where applicable, included quantities, hose interfaces, packaging and current commercial terms.
The vehicle year is used with the rest of the fitment record; it does not prove compatibility by itself. Keep the full VIN in the private approval workflow, not in public page content. Installation should proceed only after the approved component and clearance information has been reviewed by the buyer and installer.
Fitment resources before ordering
Use these internal guides to prepare fitment checks, variant confirmation, packaging notes, and RFQ details before approving a wholesale order.
01
Buyer resource
Solutions and technical guide.
Fitment checks, variant confirmation, installation notes, packaging evidence, and claim checklist.
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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 vehicle year, trim, side or position, OE or reference number, quantity, and destination market.
08 Buyer resource Wholesale and market support.Market routes and wholesale details.
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