Direct-Mount Front Fitment
Vehicle-specific direct-mount geometry for Toyota Tundra (XK70) and Toyota Sequoia (XK80) front-axle applications.
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Direct-Mount Series · Front Axle · 6-Piston
The TTSPORT 7642TK is a Direct-Mount Series front big brake kit engineered for 2022-2026 Toyota Tundra (XK70) and 2023-2026 Toyota Sequoia (XK80). It pairs a 6-piston forged aluminum caliper with Ø345 mm × 32 mm high-carbon iron rotors to add real braking margin under towing, payload, larger tires, and long mountain descents.
Full-size Toyota trucks and SUVs put serious thermal and mechanical load on the front axle. Bigger tires, roof racks, trailers, and overland gear all push the factory front brakes into fade territory faster than most owners expect. 7642TK is sized to restore confident pedal feel and braking consistency without forcing a track-only setup.
Vehicle-specific direct-mount geometry for Toyota Tundra (XK70) and Toyota Sequoia (XK80) front-axle applications.
63.5 cm² total piston area per caliper helps increase front brake authority while keeping response controllable for daily, tow, and trail use.
2022-2026 Toyota Tundra (XK70) and 2023-2026 Toyota Sequoia (XK80) use the 7642TK Ø345 mm × 32 mm front rotor specification.
Two-piece forged aluminum body with 34 mm × 2 and 38 mm × 4 heat-insulated pistons with dust boots.
One-piece, internally vented, directional rotors with Wave Slot face pattern for repeated braking and heat cycling.
Three-layer PTFE / SUS304 / PVC lines help maintain firmer, more consistent pedal response under load.
| Brake Caliper | |
|---|---|
| Series | Direct-Mount Series |
| Model / Application | 7642TK |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | One-piece heat-insulated pistons with dust boots |
| Piston Diameter | 34 mm × 2 / 38 mm × 4 |
| Caliper Dimensions | L 272 mm × W 123 mm × H 153 mm |
| Total Piston Area | 63.5 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 3.8 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø335–345 mm × 32 mm |
| Brake Rotor | |
| Rotor Material | Heat-treated high-carbon cast iron |
| Axle Position | Front |
| Rotor Dimensions for This Application | Ø345 mm × 32 mm |
| Construction | One-piece rotor |
| Ventilation | Internally vented |
| Rotor Mounting | Fixed |
| Directional Design | Yes — left/right specific |
| Rotor Face Pattern | Wave Slot |
| Brake Pads | |
| Compatible Rotor Material | Iron / steel rotors only |
| Operating Temperature Range | 0–600 °C |
| Average Friction Coefficient | Average μ: 0.38; variation depends on temperature, line pressure, and rotor condition |
| Lines | |
| Brake Line Construction | Three-layer reinforced construction |
| Brake Line Material | PTFE inner liner / SUS304 stainless-steel braid / PVC protective outer sheath |
| Brake Line Fittings | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Vehicle Application & Rotor Mapping | |
| 2022-2026 Toyota Tundra (XK70) | 345 mm × 32 mm |
| 2023-2026 Toyota Sequoia (XK80) | 345 mm × 32 mm |
| Fitment & Installation | |
| Vehicle Application | 2022-2026 Toyota Tundra (XK70) · 2023-2026 Toyota Sequoia (XK80) |
| Model Years | Toyota Tundra XK70: 2022-2026 · Toyota Sequoia XK80: 2023-2026 |
| Axle | Front |
| Caliper Mounting Type | Direct mount |
| Minimum Wheel Size | 17 in or larger |
| Minimum Spoke Clearance | 94 mm |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Bedding-In Procedure | Required |
For 2022-2026 Toyota Tundra (XK70) and 2023-2026 Toyota Sequoia (XK80), the correct 7642TK rotor specification is Ø345 mm × 32 mm. Confirm the 94 mm minimum spoke clearance before ordering.
2 × 7642TK forged 6-piston front calipers, left/right specific.
Brake pads for both front calipers, rated 0–600 °C and intended for iron / steel rotors.
2 × one-piece front rotors, Ø345 mm × 32 mm, heat-treated high-carbon cast iron, internally vented and left/right specific.
2 × three-layer stainless-steel braided brake lines with PTFE inner liner, SUS304 braid, PVC protective outer sheath, and vehicle-specific fittings.
Vehicle-specific direct-mount hardware for Toyota Tundra XK70 / Sequoia XK80 front-axle installation.
Direct-Mount Series uses one-piece rotors and direct-mount calipers. Rotor Hats and Caliper Brackets are not included because they are not used on this 7642TK application.
7642TK requires 17 in or larger wheels with at least 94 mm of spoke clearance. Wheel diameter alone is not enough; spoke shape, offset, and inner barrel profile must be checked before ordering.
17 in or larger wheels are required.
Minimum spoke clearance: 94 mm. Check spoke shape, wheel offset, spacer use, and inner barrel profile before ordering.
Application: 2022-2026 Toyota Tundra (XK70) and 2023-2026 Toyota Sequoia (XK80), front axle, with Ø345 mm × 32 mm rotor specification.
Need help confirming fitment, wheel clearance, or rotor size for your Tundra or Sequoia? Send your model year, trim, wheel specs, and use case before ordering.
Yes. This 7642TK Direct-Mount front kit is engineered for 2022-2026 Toyota Tundra (XK70) and 2023-2026 Toyota Sequoia (XK80). The correct rotor specification is Ø345 mm × 32 mm.
2022-2026 Toyota Tundra (XK70) and 2023-2026 Toyota Sequoia (XK80) use Ø345 mm × 32 mm one-piece front rotors in the 7642TK Direct-Mount Series.
17 in or larger wheels are required, with at least 94 mm minimum spoke clearance to the caliper. Wheel diameter alone is not enough; spoke shape, offset, and inner barrel profile must be checked before ordering.
No. This is a Direct-Mount Series 7642TK application with one-piece rotors and direct-mount calipers. Rotor Hats and Caliper Brackets are not used on this configuration.
Yes. The pads operate from 0–600 °C with an average μ of 0.38, suitable for daily driving, towing, and spirited road use on iron or steel rotors.
Yes. A proper bed-in procedure is required to transfer pad material evenly to the rotor face and achieve full braking performance.
Yes. Three-layer stainless-steel braided lines with PTFE inner liner, SUS304 stainless-steel braid, and PVC protective outer sheath are included, with vehicle-specific fittings on the caliper and chassis side.
Need help confirming fitment, wheel clearance, or rotor size for your Tundra or Sequoia?
Brake Kits · Fitment · Installation · Care Guide
A brake kit is not just a pair of larger calipers. Calipers, rotors, pads, hoses, brackets, rotor hats, mounting hardware, brake fluid, wheel clearance, and bedding procedure all work together as one system.
This guide explains how to confirm the right TTSPORT brake kit before ordering, what to check before installation, and how to care for the system after installation.
Do not order a brake kit by vehicle name alone. The correct kit depends on the vehicle, axle position, wheel package, driving use, and brake system layout.
Brake kits are application-specific. A visually similar kit can still have the wrong rotor offset, bracket geometry, hose fitting, caliper position, or wheel clearance requirement.
Different TTSPORT brake kit series use different hardware layouts. Always confirm what the kit includes before purchase.
Use direct-mount calipers and one-piece rotors where specified. These kits do not use rotor hats or caliper brackets unless the final product page clearly states otherwise.
Use separate friction rings and rotor hats. Hat offset, ring bolt pattern, hardware style, and rotor direction must be matched correctly.
May require bespoke brackets, rotor hats, brake lines, and engineering confirmation based on knuckle, hub, wheel, and competition use.
Require extra attention to wheel clearance, tire size, vehicle load, descent control, hose routing, and dust / water exposure.
Do not assume every brake kit includes the same parts. Package contents vary by product series, vehicle application, and final order configuration.
Before finalizing the order, review the kit specification carefully. Confirm the brake kit is matched to your vehicle and wheel setup, not only to the model name.
If any part is not listed in the final order or product page, do not assume it is included.
Inspect every component before installation. Do not modify, grind, drill, stretch, force, or space brake kit components to make them fit.
Safety: Brake kits affect braking force, hydraulic sealing, heat control, wheel clearance, and vehicle stability. Do not install the kit if fitment, torque, direction, clearance, or compatibility is unclear.
Correct installation is as important as the brake kit itself. A properly engineered kit can still perform poorly if installed with dirty mounting faces, incorrect torque, poor hose routing, or trapped air in the hydraulic system.
Verify caliper centering over the rotor and confirm even pad sweep across the friction surface.
Confirm left / right rotor direction if the rotor uses directional vanes or directional face pattern.
Check brake hose length and routing at full steering lock and full suspension travel. No twisting, rubbing, stretching, or kinking.
Check caliper-to-spoke and caliper-to-barrel clearance before road use. Wheel diameter alone is not enough.
Use the correct brake fluid type and bleed the system until pedal feel is firm and consistent.
Torque all brake hardware to the specified value. Do not reuse damaged, unknown, stretched, or corroded safety-critical fasteners.
Brake pads and rotors need a controlled bedding process before full performance is available. Bedding helps create an even transfer layer on the rotor surface, improving bite, pedal consistency, and vibration resistance.
Street pads, race pads, iron rotors, two-piece rotors, and carbon ceramic rotors may require different bedding procedures. Use the procedure supplied with the specific kit.
After installation and bedding, give the system a short break-in period before aggressive use. Pedal feel, pad contact, dust output, and noise may continue to settle after the first drives.
Brake kits need regular inspection, especially after track use, off-road use, towing, mountain driving, winter salt exposure, or any brake service.
Inspect pads, rotors, fluid level, and hose condition during normal service intervals. Prioritize quiet operation, smooth pedal feel, and even wear.
Check pad thickness, rotor surface condition, and fluid condition more often. Long descents create sustained heat even without track use.
Inspect for mud, sand, stone impact, hose abrasion, dust boot damage, and caliper contamination after trail use.
Inspect pads, rotors, fluid, and hardware before and after every event. Track heat shortens service intervals.
Check rear brake temperature, hydraulic handbrake behavior, pad wear, rotor cracking, and hardware condition frequently.
Use only compatible pads and approved bedding procedures. Inspect rotor surface condition carefully and avoid incompatible friction materials.
Do not continue driving if the brake system shows any of the following symptoms. Inspect the system or contact a qualified brake technician before using the vehicle again.
Send your vehicle details, brake kit series, wheel specs, driving use, photos, and any symptoms you notice. TTSPORT will help confirm fitment, installation checks, and the correct care path for your brake kit.
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