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The Rear Half of the Escalade's Six-Piston Brake Package
DBA DB15146XP is the rear axle set of four Xtreme Performance pads for 2021-2023 Cadillac Escalades that left the factory with the six-piston big brake package. It is a compact 126.9 mm by 48.8 mm pad at 17 mm thick, running the same low-copper carbon-fibre semi-metallic compound DBA uses on the front of the same truck.
Key Features
- XP heavy-duty compound with high initial bite and consistent friction across the working temperature range.
- Semi-metallic carbon-fibre friction material with low copper content.
- Slotted friction face with shims for noise control.
- TSP scorched surface treatment for a shorter bed-in.
- Compact 126.9 mm by 48.8 mm by 17 mm rear pad, sized for the six-piston package's rear caliper.
- Sold as a complete axle set of four pads weighing 1.49 kg packaged.
- Supersedes the earlier DB15146 part number.
Fitment
| Vehicle | Axle and restrictions |
|---|---|
| Cadillac Escalade | 2021-2023, rear axle, models equipped with the 6-piston big brake kit |
DBA DB15146XP is the opposite case to the standard-caliper front pad: this set is only for trucks that do have the six-piston package.
Specifications
| Detail | Value |
|---|---|
| Brand | DBA |
| MPN | DB15146XP |
| Product line | Xtreme Performance (XP) |
| Axle | Rear |
| Friction material | Semi-metallic carbon fibre, low copper |
| Length | 126.9 mm |
| Width | 48.8 mm |
| Thickness | 17 mm |
| Chamfer | No |
| Slots | Yes |
| Shims | Yes |
| Pads per box | 4 |
| Packaged size | 15 x 8.2 x 10.3 cm |
| Packaged weight | 1.49 kg |
| Surface treatment | TSP scorched |
| Supersedes | DB15146 |
| UPC | 9316391471390 |
| Warranty | 12 months / 20,000 km / 12,000 miles |
What's Included
- One DBA DB15146XP axle set of four brake pads
- Anti-noise shims fitted to the pads
About DBA
DBA's XP compound is the heavy-duty end of the company's street friction range, built around a low-copper carbon-fibre semi-metallic mix and a scorched surface. Rear pads on a big brake package do less of the work than the fronts but see the same heat soak in a heavy SUV. DBA DB15146XP is the XP formulation in the rear shape used by the six-piston Escalade.
Related Parts
FAQ
How many pads are supplied and what do they cover?The box holds a complete rear axle set of four pads, enough for both rear calipers on one Escalade fitted with the six-piston big brake kit.
How do I know if my Escalade has the 6-piston kit?Count the pistons visible through the wheel or check the caliper casting. The six-piston package uses a distinctly larger front caliper and a matching rear setup.
Is this the same compound as the front pad?Yes, the XP compound is the same. Only the pad shape and size differ between the axles.
What are the pad dimensions?126.9 mm long, 48.8 mm wide and 17 mm thick.
Are the pads slotted?Yes, and they are supplied with shims. Neither is chamfered on this part number.
Why does DBA scorch the surface?Post-curing the friction face removes surface resins in the factory, so the pad reaches a stable transfer layer sooner.
Do I need to replace the fronts at the same time?Not necessarily, but pads on the same axle must always be replaced as a set of four.
What warranty does DBA give?12 months or 20,000 km / 12,000 miles.
What part number does this replace?It supersedes DB15146.
Installation Instructions
- Have the pads fitted by a qualified technician, as DBA specifies for its friction range.
- Raise the rear of the vehicle, remove both rear wheels and verify the six-piston big brake package is present before fitting these pads.
- Put the electric park brake into service mode if the vehicle requires it, so the rear caliper pistons can be retracted.
- Inspect the rear rotors for heat checking and measure thickness against the minimum specification.
- Clean the carrier abutments so the compact 126.9 mm pads sit square and slide freely.
- Fit the four pads with shims, refit the caliper, exit park brake service mode, then pump the pedal firm and confirm the wheels spin free.
- Bed in on a clear road: from 50 km/h (30 mph) brake down to 10 km/h (5 mph) with medium pedal pressure without coming to a stop.
- Repeat that cycle about ten times with roughly 30 seconds of rolling cool-down between each one.
- Avoid heavy or prolonged braking for the first 200 km (120 miles) so the friction transfer layer stabilises.
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