Direct-Mount Front Layout
The caliper bolts to the factory front knuckle without universal adapters.
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Description
2021-2026 GWM Tank 300 7640TK Direct-Mount Front Big Brake KitDirect Mount Series Front Axle 6 Piston 2021 2026 GWM Tank 300 7640TK Direct Mount Front Big Brake Kit The TTSPORT 7640TK is a Direct Mount Series 6 piston front big brake kit engineered for 2021 2026 GWM Tank 300. The caliper bolts to the factory front knuckle without universal adapters, pairing a two piece forged aluminum body with 335 mm 32 mm internally vented high carbon one piece rotors, braided stainless lines, and vehicle specific fittings for
Direct-Mount Series · Front Axle · 6-Piston
2021-2026 GWM Tank 300 7640TK Direct-Mount Front Big Brake Kit
The TTSPORT 7640TK is a Direct-Mount Series 6-piston front big brake kit engineered for 2021-2026 GWM Tank 300. The caliper bolts to the factory front knuckle without universal adapters, pairing a two-piece forged aluminum body with Ø335 mm × 32 mm internally vented high-carbon one-piece rotors, braided stainless lines, and vehicle-specific fittings for a clean, purpose-built front brake package.
Why GWM Tank 300 Builders Choose the 7640TK
The Tank 300 is heavy, often runs taller tires, and sees rough roads, long descents, towing, and loaded travel. A direct-mount caliper layout removes universal adapter brackets, keeps the load path clean, and positions the 6-piston body correctly around the Ø335 mm rotor for more consistent pedal feel under repeated stops.
6-Piston Forged Caliper
Two-piece forged aluminum caliper with 27 mm × 2 / 32 mm × 2 / 38 mm × 2 staggered pistons.
50.2 cm² Piston Area
50.2 cm² total piston area per caliper helps deliver controlled front-axle clamp force.
Ø335 mm × 32 mm One-Piece Rotor
Heat-treated high-carbon cast-iron rotor, internally vented, fixed, directional left/right specific, with curved slot / Grain Slot face pattern.
99 mm Spoke Clearance
Recommended for 17 in or larger wheels with at least 99 mm minimum spoke clearance.
Three-Layer Brake Lines
PTFE inner liner, SUS304 stainless-steel braid, and PVC protective outer sheath help reduce hose expansion.
7640TK Direct-Mount Technical Specifications & Kit Options
| Brake Caliper | |
|---|---|
| Series | Direct-Mount Series |
| Model / Application | 7640TK |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | Two-piece heat-insulated pistons with dust boots |
| Piston Diameter | 27 mm × 2 / 32 mm × 2 / 38 mm × 2 |
| Caliper Dimensions | L 272 mm × W 153 mm × H 123 mm |
| Total Piston Area | 50.2 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 3.72 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø335 mm × 32 mm |
| Brake Rotor | |
| Rotor Material | Heat-treated high-carbon cast iron |
| Axle Position | Front |
| Rotor Dimensions for This Application | Ø335 mm × 32 mm |
| Construction | One-piece rotor |
| Ventilation | Internally vented |
| Rotor Mounting | Fixed |
| Directional Design | Yes — left/right specific |
| Rotor Face Pattern | Curved slot / Grain 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 | |
| 2021-2026 GWM Tank 300 | Front · Ø335 mm × 32 mm |
| Fitment & Installation | |
| Primary Vehicle Application | 2021-2026 GWM Tank 300 |
| Model Years | GWM Tank 300: 2021-2026 |
| Axle | Front |
| Caliper Mounting Type | Direct mount |
| Minimum Wheel Size | 17 in or larger |
| Minimum Spoke Clearance | 99 mm |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Bedding-In Procedure | Required |
For 2021-2026 GWM Tank 300, the correct 7640TK front rotor specification is Ø335 mm × 32 mm. Confirm 17 in or larger wheels, 99 mm minimum spoke clearance, and brake-line fitting compatibility before ordering.
What’s Included in the 7640TK Direct-Mount Kit
Calipers ×2
2 × 7640TK 6-piston forged aluminum front calipers, left/right specific.
Brake Pads
Brake pads for both front calipers, rated 0–600 °C and intended for iron / steel rotors.
Brake Rotors ×2
2 × Ø335 mm × 32 mm one-piece front rotors, internally vented, curved slot / Grain Slot, and left/right specific.
Brake Hoses ×2
2 × three-layer stainless-steel braided brake lines with PTFE inner liner, SUS304 braid, PVC protective outer sheath, and vehicle-specific fittings.
Mounting Hardware
Vehicle-specific direct-mount hardware for GWM Tank 300 front-axle installation.
7640TK is a Direct-Mount front kit. Caliper brackets and rotor hats are not used on this configuration.
Will It Fit Your GWM Tank 300?
7640TK requires 17 in or larger wheels with at least 99 mm of spoke clearance. Wheel diameter alone is not enough; spoke shape, offset, spacer use, and inner barrel profile must be checked before ordering.
1. Wheel Diameter
17 in or larger wheels are required.
2. Spoke Clearance
Minimum spoke clearance: 99 mm. Check spoke shape, offset, spacer use, and inner barrel profile before ordering.
3. Vehicle Model
Application: 2021-2026 GWM Tank 300, front axle, with Ø335 mm × 32 mm rotor specification.
Send your VIN, model year, trim, front brake hardware photos, wheel specs, and use case before ordering so TTSPORT can confirm compatibility.
Installation & Bedding for GWM Tank 300
- This 7640TK kit is engineered for the front axle of 2021-2026 GWM Tank 300.
- The correct front rotor specification is Ø335 mm × 32 mm with a one-piece internally vented rotor.
- Direct-Mount Series uses vehicle-specific front mounting geometry and vehicle-specific brake-line fittings.
- Brake-line fittings vary by application; confirm model year, trim, and front brake hardware before ordering.
- Confirm 17 in or larger wheels and 99 mm minimum spoke clearance before ordering.
- Install left/right specific rotors on the correct side for proper venting and curved-slot / Grain Slot orientation.
- A proper bedding-in procedure is required to transfer pad material evenly to the rotor face and stabilize friction performance.
- Professional installation by a qualified brake technician is recommended.
GWM Tank 300 7640TK Front Big Brake Kit FAQ
Will this 7640TK front kit fit my 2021-2026 GWM Tank 300?
Yes. This 7640TK Direct-Mount front kit is configured for 2021-2026 GWM Tank 300. The correct front rotor specification is Ø335 mm × 32 mm.
What axle and rotor size does this 7640TK kit use?
This is a front-axle kit using Ø335 mm × 32 mm one-piece, internally vented, directional front rotors with a curved slot / Grain Slot face pattern.
What wheel size and spoke clearance are required?
17 in or larger wheels are required, with at least 99 mm minimum spoke clearance to the front caliper. Wheel diameter alone is not enough; spoke shape, offset, spacer use, and inner barrel profile must be checked before ordering.
Does this kit use caliper brackets or rotor hats?
No. This is a Direct-Mount Series 7640TK application with direct-mount front calipers and one-piece front rotors. Caliper brackets and rotor hats are not used on this configuration.
Can I reuse the factory hydraulic system and ABS?
Yes. This 7640TK kit is designed to work with the factory hydraulic system and ABS on supported GWM Tank 300 applications. Professional installation and full system bleeding are required.
Are the included pads street-friendly?
Yes. The included pads operate from 0–600 °C with an average μ of 0.38, suitable for street driving, towing, and loaded SUV use on iron or steel rotors.
Do I need to bed the brakes in?
Yes. A proper bedding-in procedure is required to transfer pad material evenly to the rotor face and reach stable braking performance.
Ready to spec your 7640TK Tank 300 front brake build?
Need front fitment confirmation, wheel clearance review, or a matched front + rear brake setup?
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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★★★★★ 5
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Format: Board book, Format: Board book
GREAT gift for my 4 year old who loves trains. He got a lot of gifts for Christmas but this one is probably his favorite. It is also easy to take with you if you travel. Fun, entertaining and educational with facts about famous trains. Definitely recommend it!
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Reviewed in the United States on December 26, 2025
★★★★★ 1
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Format: Board book, Format: Board book
So bummed . Love these books. Put up for Christmas and the binder of the book is completely torn. Didn’t see till I wrapped.
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★★★★★ 5
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