BMW F34 Brake Calipers: GT6 Front Kit, F30 Brackets Differ
Reviewed by the SteedLuxParts engineering team
Last updated September 22, 2026
BMW F34 brake calipers for a GT6 six-piston front kit: 18–21 inch wheels, 345–405 mm rotor paths, and an F34 bracket file kept apart from F30 and F32
Set price
Quantity pricing updates automatically
$458.00
/ set
1-9 sets
Wholesale tier pricing Lower pricing for larger orders
1-9 sets
Sample or retail orders
$458.00/ set
10-49 sets
Small wholesale batch Recommended
$390.00/ set
Save $68 per set
50-199 sets
Core dealer volume
$360.00/ set
Save $98 per set
Product details
2 calipers, 2 adapter brackets, 2 brake rotors, 4 brake pads and 2 brake hoses, with the confirmed content written on the approved quotation and packing list
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
| 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 | SLP-BMWF34-BC-GT6-6P-F-KIT | Minimum order quantity | 1 set |
| Compatible Vehicles | | BMW F34 3 Series Gran Turismo, reviewed per VIN; the model code alone is not fitment proof | Year Range | Vehicle specific after VIN review; the F34 Gran Turismo ran from 2013 to 2020 and the installed front brake package decides the bracket |
| Supplementary Note | Trim, market and the original front brake package are confirmed before a bracket or rotor path is released | Brake Line / Interface Notes | Two hoses per kit; fitting type, routing, steering travel and suspension clearance are confirmed against the vehicle |
| Installation Type | Confirm before order | Additional Setup Required | Depends on the vehicle |
| Brake Kit Notes | GT6 six-piston front configuration; rotor paths run 345/355, 362/380, 380/405 and 405 mm across the 18–21 inch wheel range, all as planning references | Included Brake Parts | 2 calipers, 2 adapter brackets, 2 brake rotors, 4 brake pads and 2 brake hoses, 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 Gran Turismo is not a stretched F30 file
Key takeaways
- Two figures separate the bodies: 2920 mm of wheelbase under the Gran Turismo against 2810 mm under the F30 sedan and F31 Touring.
- Brackets do not travel between chassis codes: an F30 or F32 part is a different file until this car has been measured.
- Rotor planning by wheel: 345/355 mm at 18 inch, 362/380 mm at 19 inch, 380/405 mm at 20 inch, 405 mm at 21 inch.
- Crate facts: 2 calipers, 2 brackets, 2 discs, 4 pads and 2 hoses, 45 kg, in a 45 x 45 x 45 cm carton.
BMW gave the third-generation 3 Series four bodies, and the Gran Turismo is the one that grew: 4824 mm long against 4624 mm to 4643 mm for the sedan and Touring, with the extra length sitting between the axles. A GT6 front kit for this BMW F34 brake calipers page therefore begins with a measurement question rather than a looks-like question, because the mounting face, the original front brake package and the wheel envelope are all read off the actual car.
Fields the F34 review collects
Rotor diameter is an output of this list, not an input.
| Field | What the record holds today | What the workshop supplies |
|---|---|---|
| Reference | SLP-BMWF34-BC-GT6-6P-F-KIT | Same reference on the enquiry, the quotation and the packing list |
| Car identity | F34 Gran Turismo, no fixed year band | VIN, build year, trim level and sales market |
| Factory front brakes | Not yet supplied | Photographs of the caliper and disc, plus the disc diameter as stamped or measured |
| Wheels | 18–21 inch planning window | Original or aftermarket, with the diameter as fitted |
| Aftermarket numbers | Not yet supplied | ET and J, spoke profile, inner-barrel clearance |
Ask a wheel supplier for ET – the distance from the mounting face to the wheel centre line – and for J – the rim’s bead-profile code – and you have two of the five numbers this review wants. The remaining three live inside the wheel: how the spokes fall away from the hub, how much room the barrel leaves at the caliper’s outer edge, and whether the disc’s hat height keeps that caliper where the drawing expects it.
What each wheel size is planned around
Four planning rows from the seller’s record. Each one is a starting point that still needs the car in front of it.
| Wheel fitted | Disc planning value | Open item before the bracket is cut |
|---|---|---|
| 18 inch | 345 mm or 355 mm | Factory brake interface, spoke path, barrel clearance |
| 19 inch | 362 mm or 380 mm | Measured wheel geometry and the bracket position |
| 20 inch | 380 mm or 405 mm | ET and J values, spoke profile, disc position |
| 21 inch | 405 mm | Whole envelope, hose route, final installation check |
Why the table is only a starting point
Aftermarket catalogues treat this platform generously. One product number covers a 380 x 32 mm six-piston front kit for the F22, F23, F30, F31, F32, F33, F34 and F36 together, while another catalogue keeps a separate 380 mm six-pot listing for the 340i Gran Turismo. Those two listings show the size band the market works in; they don’t tell you the thickness, the hat height or the bracket geometry your car needs, and none of them was measured on your F34.
Sibling chassis and the rear axle
F30, F31, F32, F36: neighbours, not donors
This is the question the desk answers most often on the Gran Turismo. A bracket approved on an F30 or an F32 tells you that somebody solved a similar problem on a different car, and nothing more. Until the F34’s own mounting points and factory front brakes are on the file, a sibling part number stays a sibling part number.
The back of the car is a different enquiry
Ordering this kit changes the front axle only. A rear request opens a second file, and that one starts with the parking brake: an electric unit with its own motor, a handbrake cable, or a drum-in-hat layout. The rear caliper, disc and parking hardware are quoted from whichever answer the car gives.
Factory trim complicates the front end too. Gran Turismo models left the line with more than one front brake package depending on engine and market, so two cars that look identical on the outside can present different calipers, different discs and a different mounting face. The VIN and the photographs settle which one you are working on.
What leaves the factory, and what it weighs
Five lines make up the consignment, and each one carries an interface that the review has to clear before the crate is packed.
- Two calipers: the GT6 six-piston front pair.
- Two brackets: machined for the approved mounting points on the confirmed car.
- Two discs: cut to the path that cleared the review.
- Four pads: the set matched to those calipers.
- Two hoses: routed for the car that was signed off.
Freight note
The crate measures 45 x 45 x 45 cm and lists at 45 kg, which puts it in two-person-lift territory. Because the review can still change a disc or a bracket between enquiry and deposit, the approved quotation and packing list carry the final content.
Which grades are on file, and what the page refuses
Three grades appear in the seller’s site-wide material record and are quoted here as that record states them: 7050 aluminium alloy for the caliper body, the hat and the bracket; ceramic friction material for the pads; high-carbon cast iron for the discs. No batch sheet exists for this particular kit, so treat those lines as the standing specification rather than a test result for your order.
Three things stay unwritten. This page never promises direct replacement, because the bracket is machined per car and the record tells buyers not to assume it. The second is braking performance, because nobody has put this SKU through a stopping-distance, fade or bias test. The third is any approval document, because none has been issued for it.
What we do publish is the installer’s job list. A six-piston conversion is only finished when somebody has checked the fastener torques, the rotor runout, the hose path through full steering lock, the clearance to the wheel and the pedal feel, and that check belongs to the product rather than to the paperwork.
Two references were opened while writing this record: the Wikipedia entry covering the F30 generation, which supplied the body-style list, the wheelbase figures and the overall lengths, and the Wikipedia disc-brake entry, which supplied the component vocabulary. Neither one can confirm that a kit fits a specific car. This page was updated on 2026-09-22 by the SteedLuxParts fitment desk.
From enquiry to quotation on one F34
The sequence
Our review opens with the VIN, the trim level and the wheel measurements. When the factory front brakes and the wheel envelope both clear, one quotation fixes the disc path and the bracket together. Nothing is machined until the 30% deposit arrives; the build then runs 3–7 business days, delivery takes about 20–35 business days, and the balance settles before dispatch.
Volume and branding
Pricing steps down with quantity: USD 458 a set across 1–9 sets, USD 390 across 10–49 and USD 360 across 50–199, with the minimum order at 1 set. Dealer branding and application information are discussed after the vehicle review rather than before it, and packaging support follows the same order.
Buyer questions before an F34 order
Can an F30 or F32 bracket be used on the F34 Gran Turismo?
Not on the strength of a catalogue listing. It measures 2920 mm between the axles where the F30 and F31 measure 2810 mm, and its mounting and factory-brake interfaces are its own. Keep the sibling part number aside until this car has been checked.
Is this kit automatically suitable for every F34?
No. Year, trim, market, factory front brakes, bracket interface and wheel clearance all get approved per VIN, and a different factory brake package on the same body code changes what the bracket has to do.
Which rotor size goes with which wheel?
Plan from 345 mm or 355 mm at 18 inch, 362 mm or 380 mm at 19 inch, 380 mm or 405 mm at 20 inch and 405 mm at 21 inch. Each of those is a planning value; the factory brakes and the measured wheel envelope decide which one survives.
Does an 18 inch wheel clear a 345 or 355 mm rotor?
Diameter alone settles nothing. The spoke path, barrel clearance, rim width, offset, disc interface and the printed caliper template all have a say, and the desk may ask for a template check or a physical measurement before it releases the bracket and disc schedule.
Does the kit include rear brakes?
It does not. What ships is a front axle kit: two calipers, two brackets, two discs, four pads and two hoses. Rear calipers, rear discs and parking hardware come from a separate review.
What wheel data is needed for an aftermarket fitment?
Diameter, ET, J, spoke profile and barrel clearance. The rest of the file is unchanged: VIN, build year, trim and market travel with the enquiry whether the wheels are factory or aftermarket.
Reference photographs, and the file that starts the review
Three photographs from the seller’s kit family appear below. They show how a GT6 front package is laid out, photographed and packed. Treat them as reference material: none of them was taken on an F34, and none of them is a clearance answer for your car.
Start the review with six items: VIN, build year, trim, market, photographs of the factory front caliper and disc, and the wheel measurements including ET and J where the wheels are aftermarket. Add the destination country and the quantity, and the reply comes back with the disc path, the 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.
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