BMW X5 Brake Calipers: F50 Four-Piston, Platform First
Reviewed by the SteedLuxParts engineering team
Last updated September 23, 2026
BMW X5 brake calipers: an F50 four-piston front set with 300–380 mm rows, the E53, E70, F15 and G05 checks behind it, and what this page does not claim
Set price
Quantity pricing updates automatically
$399.00
/ set
1-9 sets
Wholesale tier pricing Lower pricing for larger orders
1-9 sets
Sample or retail orders
$399.00/ set
10-49 sets
Small wholesale batch Recommended
$358.00/ set
Save $41 per set
50-199 sets
Core dealer volume
$299.00/ set
Save $100 per set
Product details
2 calipers, 4 brake pads, 2 custom bells and brackets, 2 brake hoses, 2 brake discs and 1 brake fluid depending on 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 | SLP-BMWX5-F50-4P-KIT | Minimum order quantity | 1 set |
| Compatible Vehicles | BMW X5, E53, E70, F15 and G05 platforms checked per VIN with the market version and the brake version confirmed; the model name alone is not fitment proof | Year Range | The record publishes no year band; the platform code, the build year and the brake version are confirmed from the VIN before a row is released |
| Supplementary Note | Standard, M Sport and modified brake versions are recorded separately, together with the current front disc diameter and thickness | Brake Line / Interface Notes | Two hoses per set; the original hose fitting 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 | F50 four-piston front caliper set with 300, 330, 355 and 380 mm rotor rows published for 17, 18 and 19 inch wheels | Included Brake Parts | 2 calipers, 4 brake pads, 2 custom bells and brackets, 2 brake hoses, 2 brake discs and 1 brake fluid depending on 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 |
Four platforms, one name, and a disc that can be bigger than the kit
Key takeaways
- Platform first: the record names E53, E70, F15 and G05, and the model record now lists a fifth generation from 2026, so the chassis code decides the file.
- Know the disc on the car: an X5 M left the factory with a 395 x 36 mm front rotor, which is larger than every row published here.
- Rows in this record: 17 inch with 300 or 330 mm, 18 inch with 330 or 355 mm, 19 inch with 355 or 380 mm.
- One front set: 2 calipers, 4 pads, 2 bells and brackets, 2 hoses, 2 discs and fluid according to the selected model.
BMW X5 brake calipers are not one part number with one size. The same name covers a 1999 body, a 2006 body, a 2013 body and a 2018 body, and those cars do not share a front corner. The E70 runs a 2,933 mm wheelbase at 2,260 to 2,420 kg, and the later G05 is listed at 2,975 mm and 2,060 to 2,286 kg, so the question on this page is not which caliper looks right but which car and which disc the file is being built around.
Which X5 is on the order: E53, E70, F15 or G05
The record publishes no year band. It asks for the car instead, and this is what the file has to settle before a row is named.
| Item | What it settles |
|---|---|
| VIN and platform code | Which of the four named platforms the car is, and the build inside it |
| Build year and brake version | Standard, M Sport or already modified front hardware |
| Market version | Equipment and brake packages that changed by market |
| Current disc diameter and thickness | What the car carries now, which is the number the row is measured against |
| Wheel diameter, width and offset | Whether the rim and its position leave room for a fixed four-piston body |
| Spoke and inner-barrel photographs | The gap a size form cannot show |
| Hub face and bell figures | The bell and bracket data that gets machined for this car |
| Hose fitting and earlier brake work | Whether the car still runs factory plumbing or a previous conversion |
One boundary belongs here. The generated platform list in the BMW X5 model record runs from the E53 in 1999 through the E70, the F15 and the G05 to a fifth generation listed from 2026, while the seller’s own note names four. A chassis outside the seller’s four gets its own review rather than an assumption, which is why the platform code is the first field in the table and not the model name.
What this record publishes, and what the market compares it to
Two different kinds of number sit on an X5 brake page, and mixing them up is how a buyer orders the wrong disc.
- This record: an F50 four-piston front set with rotor rows of 300, 330, 355 and 380 mm for 17, 18 and 19 inch wheels.
- Model reference, not this set: the X5 M carried a 395 x 36 mm front rotor with four-piston calipers when it was described as the biggest brake package on a BMW production car.
- Market reference, not this set: published X5 big-brake listings pair 20 inch wheels with 380 mm discs, and one 380 mm listing targets an X5 M directly.
Read together, those three lines explain the page. A buyer arriving from a 20 inch wheel search may be looking at a larger package than this record holds, and a buyer whose car already runs the M front rotor is looking at a smaller one. Neither is a fault in the kit; both are reasons we measure first. The live title also lists only 330, 355 and 380 mm, so the table below publishes all four rows the record carries rather than the three in the title.
Wheel and rotor rows in the record
| Wheel | Rotor row | Check before approval |
|---|---|---|
| 17 inch | 300 mm or 330 mm | Barrel and spoke clearance around the caliper body; quoted for custom applications that measure up |
| 18 inch | 330 mm or 355 mm | The usual upgrade row, still subject to offset, disc position and the brake version on the car |
| 19 inch | 355 mm or 380 mm | Full envelope plus disc thickness and the bell figures |
The 300 mm row
The smallest row is the one the title drops and the one buyers ask about, because a 300 mm disc on a two-tonne SUV reads as a downgrade next to a factory 395 mm rotor. It is published for custom applications where the measured wheel is the limit; the wheel envelope – the space left between the spokes, the inner barrel and the caliper body – decides whether the row is quoted at all.
What one front set carries
One front set carries 2 calipers, 4 brake pads, 2 custom bells and brackets, 2 hoses and 2 discs, with one brake fluid according to the selected model. Our confirmed list is written onto the approved quotation and the packing list before any part is machined.
- Calipers: the F50 four-piston front pair.
- Pads: four pieces for the supplied caliper bodies, in ceramic friction material.
- Bells and brackets: two custom pieces machined from the confirmed hub figures; hub face and hat height have no universal value on this platform.
- Hoses: two lines, with the fitting and the routing fixed before production.
- Discs: a pair in the diameter that passed the review, in high-carbon cast iron.
Caliper bodies, bells and brackets follow the site material record at 7050 aluminium alloy. A bell – the machined alloy centre that carries the disc – is made for the car rather than for the model, so its height is not a catalogue number. Nothing beyond that record is claimed, because no batch sheet or test report for this set exists to claim it from.
Packing reference
The carton is listed at 45 x 45 x 45 cm and 20 kg, and both figures move with the rotor size and the final component list. They are rechecked before dispatch, and freight is quoted on its own line.
What this page will not claim
Nothing here is presented as an OE replacement, and no OE, OEM or interchange number is published for the set. On an X5 that matters, because the first search results for this term are parts catalogues quoting factory numbers and retrofit kits; 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 on a 2,000 kg plus vehicle. And F50 is used here as the caliper-family label the aftermarket applies to this four-piston pattern, not as a licence, sponsorship or factory warranty.
Platform facts on this page come from the BMW X5 (E70) record for the weights and the X5 M front rotor, and from the X5 model record for the generation list. Both describe the vehicle, not this set, and neither can approve an order. The vehicle data on this page was reviewed by the SteedLuxParts fitment desk on 2026-09-23, after checking those sources.
How an X5 front set is quoted
From enquiry to quotation
An enquiry that describes a fault gets a repair or replacement answer first. A full front set goes into the file: platform code, brake version, current disc figures, wheel data and photographs. Production begins after 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
The ladder reads USD 399 a set for 1–9 sets, USD 358 for 10–49 and USD 299 for 50–199, with MOQ at 1 set. Importers, repair chains, distributors, fleets and tuning shops in Africa, Europe, Ukraine, Kenya, South Africa, Kazakhstan and Russian-speaking markets order through the same route. The quantity block on the live page still shows an older figure against the 10–49 row and is being corrected; the quotation follows the ladder.
The warranty runs 5 years and covers manufacturing and quality faults only. Wear, incorrect fitting and unauthorised changes stay outside it, and claims run through the written policy rather than this page.
Questions that arrive before an X5 order
Which X5 platform is on the order: E53, E70, F15 or G05?
The four named platforms are confirmed from the VIN and the brake version. The model record now lists a fifth generation, so a chassis outside that list gets its own review before any row is quoted.
Does a 300 to 380 mm row make sense on a car that may already run a 395 mm disc?
Only against what the car carries now. The X5 M’s documented front rotor is 395 x 36 mm, so the current disc diameter and thickness are measured before a row is named, and the answer may be that this set is not the right package for that car.
The title says 330 355 380 mm, so where did the 300 mm row go?
The record itself carries four rows, including 300 mm, and the wheel and rotor table on this page lists all four. The title is being corrected so it matches the record.
Is the 17 inch row meant for an X5, or for a custom application?
The row covers custom work where the measured wheel is the limit, and it is quoted only after the barrel and spoke photographs clear the caliper body, which is the same check the record asks for on every row.
Are OE or interchange numbers published for this set?
No. Nothing on this page presents it as an OE replacement, and no such number is claimed for it until it has been verified for the car.
What has to be checked after the front set is fitted?
Wheel barrel and spoke clearance, disc centring inside the fixed caliper, bell and hub fit, bracket fastener torque, hose routing at full lock, bleeding and leak inspection, then pedal feel and a road check with the vehicle loaded.
After fitting, and the reference images
Three reference images sit below: the set on a white background, the bells, brackets and hoses laid out on a bench, and a fitted wheel corner. None of them is a fitment record for a particular X5.
Send the VIN with the platform code, the brake version, the current disc diameter and thickness, the wheel diameter, width and offset, spoke and barrel photographs, the hose fitting, photographs of the front caliper as it stands, the destination country and the quantity. We reply with the rotor row, the bell 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 brake system products.Compare calipers and rotor kits.
04 Buyer resource Browse BMW brake caliper.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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