BMW 135i Brake Caliper: Six-Piston Front Kit, VIN First
Reviewed by the SteedLuxParts engineering team
Last updated October 18, 2026
BMW 135i brake caliper guidance: the factory six-piston front setup, rebuild or full-kit routes, and 18–22 inch wheel rows with VIN-first fitment.
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, 4 brake pads, 2 custom bell hats, 2 brake hoses, 2 brake rotors and 1 brake fluid according to the selected model, with the confirmed content written on the approved quotation and packing list
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 | steedluxparts | Category | Big Brake Kits |
|---|---|---|---|
| SKU | SL-BMW135I-BV6-FRONT | Minimum order quantity | 1 set |
| Compatible Vehicles | BMW 135i, E82 coupe and E88 convertible, released per VIN with the market version and the front brake layout confirmed; the model name alone is not fitment proof | Year Range | E82 coupe production ran to August 2013 and the E88 convertible to June 2013; the 2010 facelift moved the 135i from the N54 to the N55, so the VIN decides rather than a published year band |
| Supplementary Note | The factory 135i front package is a six-piston caliper on a 338 mm disc, so the car's own caliper, disc and hub photographs are recorded before a bracket is released | Brake Line / Interface Notes | Two hoses per kit; the original hose fitting, banjo orientation and routing are confirmed before production |
| 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 | V6 six-piston front caliper package with rotor rows starting at 330 mm and 355 mm on 18 inch wheels and running to 420 mm at 22 inch, with a 440 mm option only after a clearance review | Included Brake Parts | | 2 calipers, 4 brake pads, 2 custom bell hats, 2 brake hoses, 2 brake rotors and 1 brake fluid according to the selected model, with the confirmed content written on the approved quotation and packing list |
| 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 caliper your 135i already has
Key takeaways
- Six pistons came as standard: the 135i was built with a six-piston front caliper on a 338 mm disc, so this is not a first set of front calipers.
- Two separate jobs: a rebuild or replacement for a sticking factory piston is one route; a complete front package is the other.
- Wheels and rotors: the record runs from 18 inch wheels to 22 inch wheels, and the largest rotor option stays a case-by-case review.
- One front set: 2 calipers, 4 pads, 2 custom bell hats, 2 hoses and 2 rotors, plus fluid according to the selected model.
Most people typing BMW 135i brake caliper into a search bar are not shopping for their first set of front calipers. The car already left the factory with one. The model record for the E82 coupe and E88 convertible puts a six-piston front caliper and a 338 mm front disc on the 135i, with a two-piston rear caliper and a 324 mm rear disc behind it, which is why this page opens with the caliper the car already has instead of a generic parts list.
Rebuild or replace: the two jobs behind one search term
A factory caliper that has seized, is weeping fluid or has chewed through a pad is a repair. A rebuild kit or a like-for-like replacement of that one part keeps the 338 mm disc and the original hub geometry. That route is cheap, and it’s the one the parts catalogues dominate when a buyer searches this term.
The route this page sells is different. A V6 six-piston front set replaces the whole working package – calipers, hats, brackets, discs and hoses – matched to the car rather than to the catalogue. It lands on the same corner of the car, but it changes the disc diameter and the hat data. A bell hat – the machined alloy centre that carries the disc – is a part a rebuild never touches.
That difference is why the live specification table was wrong to label the kit a drop-in part for the original caliper. Nothing here is measured on a template, and a buyer who wants the original caliper repaired should say so in the first message so the two jobs don’t end up in one quotation.
Which 135i is in the file: E82 coupé or E88 convertible
The name covers one coupé, one convertible and seven model years, so we start the file with the car.
| Item | What it settles |
|---|---|
| VIN and model code | E82 coupe or E88 convertible, and the exact build inside that code |
| Model year against the 2010 facelift | N54 or N55 car, which is where the 135i changed engine mid-life |
| Market version | Equipment that changed by market, including the brake package fitted at the factory |
| Wheel diameter, width and offset | Whether the rim leaves room for a wide fixed caliper body |
| Spoke and inner-barrel photographs | The gap a number on a form cannot show |
| Current disc diameter and thickness | Where the car sits now, and how far a 330, 355 or 380 mm row would move it |
| Hub face and hat data | The bell hat and bracket figures that get machined for this car |
| Hose fitting and earlier brake work | Whether the car still has factory plumbing or a previous conversion |
Two model-record notes decide which car is on the order: the E82 coupe ran to August 2013 and the E88 convertible to June 2013, and the hatchback generation that followed used the M135i name instead of carrying 135i forward, so a 135i record is an E82 or E88 record. The BMW 1 Series (F20) record marks where that name changed.
Wheel and rotor rows for the front axle
Rows from the seller’s record, quoted as planning points. Each pair still has to clear the wheel, the hub and the knuckle on the actual car.
| Wheel | Rotor row | Check before approval |
|---|---|---|
| 18 inch | 330 mm or 355 mm | Spoke path and inner barrel around the caliper body; this is the tightest row on the car |
| 19 inch | 355 mm or 380 mm | Offset, disc position and the room behind the hat |
| 20 inch | 380 mm or 405 mm | Wheel envelope plus disc thickness and hat height |
| 21 inch | 400 mm or 412 mm | Full envelope, plus tyre and arch clearance at steering lock |
| 22 inch | 420 mm | Full envelope; 440 mm stays a special case and needs its own review |
Why 18 inch matters here
This is a compact rear-drive coupé with a short wheelbase of 2,660 mm, so the gap between spoke and caliper body runs out sooner than it does on a larger saloon. Rows above 18 inch are quoted because buyers run bigger wheels, not because the car needs them. The wheel envelope – the room left between the spokes, the inner barrel and the caliper body – is what the photographs are for, and a rim size on its own doesn’t settle it.
What one front set carries
One front set carries 2 calipers, 4 brake pads, 2 custom bell hats, 2 adapter brackets, 2 hoses and 2 rotors, with one brake fluid supplied according to the selected model. Our list is fixed to the approved quotation before any part is machined.
- Calipers: the V6 six-piston front pair, two bodies.
- Pads: four pieces cut for the supplied caliper bodies.
- Bell hats and brackets: two custom hats and two brackets machined from the confirmed hub figures.
- Hoses: two lines with the fitting and routing agreed before production.
- Rotors: a pair in the diameter that passed the review, in high-carbon cast iron.
Materials follow the same record as the rest of the range: the caliper bodies, the bell hats and the adapter brackets are 7050 aluminium alloy, the pads use ceramic friction material and the rotors are high-carbon cast iron. Nothing stronger than that is claimed, because no batch sheet or test report for this kit exists to claim it from.
Packing reference
The carton is listed at 45 x 45 x 45 cm. Two weights sit on the current page, 20 kg in one block and 40 kg in the specification table, and they can’t both describe one front set. The confirmed figure goes on the quotation and is re-weighed before dispatch, and freight is quoted on its own line.
What this page will not claim
The set is not presented as an OE replacement, and no OE, OEM or interchange number is published for it. That matters more than usual on a 135i, because the first search results for the term are parts catalogues quoting factory numbers; a buyer who needs a factory part number has a different job from the one this page quotes.
Two more limits hold. No stopping distance, brake bias or temperature figure is published, because no test file exists for this configuration. And the V6 name, together with the lettering visible on the calipers, is treated as the family label the aftermarket uses for this six-piston pattern rather than as a licence, sponsorship or factory warranty.
Model facts on this page come from the BMW 1 Series (E87) record, which is where the six-piston front caliper, the 338 mm front disc and the E82 and E88 production dates are documented. That source describes the platform, not this kit, and it cannot approve an order. The vehicle data on this page was reviewed by the SteedLuxParts fitment desk on 2026-09-23 against those sources.
How a 135i front order is quoted
From enquiry to quotation
An enquiry that describes a fault gets a repair-or-replacement answer first, and an enquiry for a full front package goes straight into the file: model code, wheel data, disc figures and photographs. Production begins once the 30% deposit is received, the build takes 3–7 business days, delivery runs about 20–35 business days, and the balance is settled before dispatch.
Price steps and export routes
Tier pricing reads USD 499 a set for 1–9 sets, USD 458 for 10–49 and USD 418 for 50–199, with MOQ at 1 set. Importers, repair chains, distributors, fleets and tuning shops in Africa, Europe, North America, Ukraine, Kenya, South Africa, Kazakhstan and Russian-speaking markets order through the same route, and a car that has already been converted is quoted on the hardware it carries now.
The defect warranty is 5 years against manufacturing and quality faults. Wear, incorrect fitting and unauthorised changes stay outside it, and the claim process runs through the written policy rather than this page.
Questions that arrive before a 135i order
My 135i already has six-piston front calipers, so what does this kit change?
It changes the whole front package rather than the caliper alone. The factory part sits on a 338 mm disc; this set brings its own bell hats, brackets and rotors, so the disc diameter and the hub interface move with it.
Is this a rebuild, or a replacement caliper set?
It is a replacement front package, not a rebuild of the original caliper. Rebuilding keeps the factory disc; this record brings its own hats, brackets and rotors for a car that has been measured.
Which 135i does this record cover?
The E82 coupe, produced to August 2013, and the E88 convertible, produced to June 2013. The 2010 facelift changed the engine from the N54 to the N55, so the VIN and model year decide which build is in the file.
Will an 18 inch wheel stay on the car?
The smallest row in the record is 18 inch, and it starts at 330 mm or 355 mm. Whether it clears depends on the spoke path, the inner barrel and the offset, which is why barrel photographs are requested with the wheel figures.
Why do two weights appear on this page?
Because the record carries both a 20 kg and a 40 kg figure and neither has been reconciled. The carton measures 45 x 45 x 45 cm; the confirmed weight is written on the quotation and re-weighed before dispatch.
What has to be checked after the front kit is fitted?
Caliper-to-spoke and barrel clearance, disc centring inside the fixed caliper, hat and hub fit, bracket fastener torque, hose routing at full steering lock, bleeding and leak inspection, then pedal feel and a road check.
After fitting, and the reference images
Three reference images sit below: the set on a white background, a caliper mounted on a hub, and a fitted front corner behind a spoked wheel. None of them is a fitment record for a particular 135i.
Send the VIN with the model code, the wheel figures with spoke and barrel photographs, the current disc diameter and thickness, the hub and hat data, the hose fitting, a photograph of the front caliper as it stands, the destination country and the quantity. We reply with the rotor row, the hat and bracket position and the price for the front set.
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 Big Brake Kits.Compare nearby variants first.
04 Buyer resource Shipping and claim support.Export packing and freight evidence.
05 Buyer resource Terms and claim rules.Approval, payment, shipping and return limits.
06 Buyer resource Request fitment review.Send model, year, VIN and wheel data.
07 Buyer resource Solutions and technical guide.Fitment, installation and packing checks.
08 Buyer resource Buyer application scenarios.Sourcing workflows for international buyers.
09 Buyer resource Wholesale and market support.Market routes and wholesale details.
10 Buyer resource Browse the complete product catalog.Compare related products and variants.
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