Jeep Wrangler Big Brake Kit Upgrade / TTSPORT Direct-Mount OR6
Wrangler owners running big tires, front bumpers, winches, and rooftop tents know the tradeoff — more weight and more heat, on a brake system that was never designed to carry either. TTSPORT built the OR6 six-piston big brake kit around exactly that scenario: heavy-load, extreme-terrain driving where a soft or fading pedal isn't just annoying, it's a safety problem on a long descent.
This install swaps the Wrangler's front stopping hardware for the TTSPORT OR6 kit, built around a fixed six-piston caliper and a 345mm one-piece rotor. The whole system was engineered as a direct-mount design — no adapter flange, no cutting into the factory structure — so it drops in on the existing mounting points and clears the stock 17-inch wheel.
Vehicle & Kit Specs
This build uses the TTSPORT OR6 front kit on a Jeep Wrangler still running its factory 17-inch wheels. Here's what's in the box:
| Item | Specification |
|---|---|
| Vehicle | Jeep Wrangler, factory 17-inch wheels |
| Front caliper | TTSPORT OR6 direct-mount six-piston caliper |
| Front rotor | TTSPORT 345mm one-piece rotor |
| Pads / lines | TTSPORT high-performance brake pads, stainless steel brake lines |
| Hardware | Brake fluid, mounting bolts, and installation hardware |
Below is the full OR6 product spec sheet, covering piston layout, caliper dimensions, and vehicle-specific fitment — including Wrangler JK and JL applications.
| Brake Caliper | |
|---|---|
| Series | Direct-Mount Series |
| Model / Application | OR6 |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | One-piece heat-insulated pistons with dust boots |
| Piston Diameter | 40 mm × 4, 43 mm × 2 |
| Caliper Dimensions | L 301 mm × W 149 mm × H 130 mm |
| Total Piston Area | 79 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 4 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø340–355 mm × 32/34 mm |
| Fitment & Installation | |
| Vehicle Application / Trim Exclusions | 2022-2026 GWM Tank 500 - (345mm × 32mm, Hi4-Z Not Available) 2021-2026 Ford F-150 (P702) - (340mm × 32mm) 2021-2026 Ford F-150 Raptor (3rd Gen. Raptor) - (340mm × 32mm) 2021-2026 Ford Bronco (U725) - (340mm × 32mm) 2022-2026 Ford Bronco Raptor (U725) - (340mm × 32mm) 2022-2026 Ford Ranger (2nd Gen.) - (340mm × 32mm) 2022-2026 Ford Ranger Raptor (2nd Gen.) - (340mm × 32mm) 2009-2023 Toyota LC150 Prado - (345mm × 32mm) 2012-2017 Lexus GX400 - (345mm × 32mm) 2010-2023 Lexus GX460 - (345mm × 32mm) 2008-2021 Toyota LC200 - (355mm × 32mm) 2008-2021 Lexus LX570 - (355mm × 32mm) 2024-2026 Toyota LC250 Prado - (345 mm × 34 mm) 2024-2026 Lexus GX550 - (345 mm × 34 mm) 2007-2021 Toyota Tundra (XK50) - (355mm × 32mm) 2008-2022 Toyota Sequoia (XK60) - (355mm × 32mm) 2022-2026 Toyota LC300 - (345 mm × 34 mm) 2022-2026 Lexus LX600 - (345 mm × 34 mm) 2022-2026 Toyota Tundra (XK70) - (345 mm × 34 mm) 2023-2026 Toyota Sequoia (XK80) - (345 mm × 34 mm) 2007-2018 Jeep Wrangler JK - (345mm × 32mm) 2018-2026 Jeep Wrangler JL - (345mm × 32mm) |
| Minimum Spoke Clearance (mm) | 91 |
| Caliper Mounting Type | Direct mount |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
Why It Works
The OR6's six-piston layout and 345mm rotor were matched specifically to the Wrangler's curb weight and off-road use case. A larger contact patch and more even clamping force translate directly into steadier braking under heavy load — the difference shows up on long descents, washboard gravel, and hot mud, where a standard brake system fades and the pedal goes soft. For drivers running mountain trails, overland routes, or camping rigs, that pedal consistency matters as much as raw stopping force.
- Direct bolt-on fitment using the factory mounting points — no cutting, no modification to the stock structure, and no wheel spacers needed
- Fits behind the factory 17-inch Wrangler wheel
- Forged caliper body with a reinforced bracket structure holds up to repeated, high-frequency braking without shifting or vibrating loose off-road
- Off-road-tuned internal fluid porting is designed to keep the pedal linear and predictable through water crossings, mud, and repeated impacts
None of this is about looking bigger behind the wheel. The OR6 was built around the Wrangler's actual duty cycle — daily driving as well as loaded-down overlanding and extended off-road runs. Big power gets you moving; the last thing standing between a driver and getting home safely is still that final brake application.
Installation Gallery
FAQ
Does the TTSPORT OR6 kit fit the Wrangler's factory 17-inch wheels?
What size rotor does the OR6 kit use on the Wrangler?
How many pistons does the OR6 caliper have, and does it need a mounting flange?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.