Key takeaways
- Trucks that tow campers, boats or equipment trailers and see repeated hard stops or long downhill grades.
- Work trucks that carry tools, materials or heavy bed loads daily.
- Lifted trucks with larger tires, where extra rotating mass increases braking demand.
- DIY owners who want one part number that covers pads, rotors and hardware.
The PowerStop Z36 Truck & Tow brake kit is worth buying if you drive a pickup or SUV that regularly carries heavy loads, tows a trailer, or runs oversized tires, and you want a complete pad and rotor upgrade in one box. The Z36 line pairs carbon-fiber ceramic pads designed for higher heat with drilled and slotted rotors and the hardware needed for the job, which removes most of the guesswork from a brake refresh.
Two kits are commonly listed: the K2813-36 front and rear kit, which usually sells around $500 to $560, and the K3167-36 front-only kit, typically about $240 to $280. Pick the front and rear kit if both axles are due for service; pick the front kit if only the front is worn, since the front brakes do most of the stopping. Either way, confirm fitment for your exact year, make, model and drivetrain before ordering, because these part numbers are vehicle-specific.
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Who the Z36 kit is for
- Trucks that tow campers, boats or equipment trailers and see repeated hard stops or long downhill grades.
- Work trucks that carry tools, materials or heavy bed loads daily.
- Lifted trucks with larger tires, where extra rotating mass increases braking demand.
- DIY owners who want one part number that covers pads, rotors and hardware.
Who might prefer something else
If you drive an unloaded half-ton mostly on the highway, a standard ceramic pad and plain rotor kit costs less and is quieter. Owners who want maximum rotor life may also prefer blank rotors, since drilled and slotted designs trade some longevity for heat and gas management.
Kit comparison
| Item | K2813-36 (Front & Rear) | K3167-36 (Front) |
|---|---|---|
| Axles covered | 2 (front and rear) | 1 (front) |
| Rotors included | 4 | 2 |
| Pad sets included | 2 axle sets | 1 axle set |
| Pad compound | Z36 carbon-fiber ceramic | Z36 carbon-fiber ceramic |
| Rotor design | Drilled and slotted, coated | Drilled and slotted, coated |
| Hardware | Included | Included |
| Typical price range | About $500–$560 | About $240–$280 |
Fitment varies by vehicle generation, axle rating and brake package. Use the vehicle-fit check on the listing or PowerStop’s catalog, and compare rotor diameter against your current parts.
What stands out
Pads built for heat
Towing and hauling create far more heat in the brakes than commuting. The Z36 carbon-fiber ceramic formula is aimed at maintaining bite at higher temperatures and resisting fade during repeated stops. Ceramic-based pads also tend to produce less visible dust than semi-metallic pads, which keeps wheels cleaner.
Drilled and slotted rotors
The slots help sweep away gas and debris from the pad surface, and the drilling helps with cooling and wet-weather response. The rotors carry a protective coating to slow rust on the hat and vanes, which matters in salt-belt states.
Complete kit convenience
Buying pads, rotors and hardware separately often means hunting for matched part numbers. A kit keeps everything paired, which reduces the risk of ordering the wrong clip or shim.
Trade-offs and limits
- Noise potential. Drilled and slotted rotors can produce a light whirring sound or more noise than blank rotors, especially early in their life.
- Rotor life. Slots wear pads slightly faster, and heavily cross-drilled rotors can develop small heat cracks under extreme abuse.
- Price. The front and rear kit is a meaningful outlay compared with buying basic pads alone.
- Calipers not included. If your calipers are sticking or leaking, new pads and rotors will not fix the underlying problem. Inspect calipers, slide pins and hoses at the same time.
Installation and bed-in tips
- Confirm the parts first. Compare the new rotor’s diameter and hat height with the old rotor before installing.
- Clean the hub face. Remove rust and scale where the rotor seats to prevent runout and vibration.
- Lubricate slide pins and contact points with the supplied or a suitable brake lubricant, never on the pad friction surface.
- Torque lug nuts to spec in a star pattern with a torque wrench. Impact guns can warp rotors and stretch studs.
- Flush old fluid if due. Brake fluid absorbs moisture over time; towing vehicles benefit from fresh fluid with a higher boiling point.
- Follow the included bed-in procedure. A typical sequence is a set of moderate stops from about 30 mph, followed by firmer stops from around 40 to 45 mph, without coming to a full stop or holding the brake while hot. Then drive to let the brakes cool.
Pad compound comparison for trucks
| Pad type | Heat tolerance | Dust | Noise | Best for |
|---|---|---|---|---|
| Organic | Low | Moderate | Low | Light cars, gentle use |
| Standard ceramic | Medium | Low | Low | Daily driving, unloaded trucks |
| Z36 carbon-fiber ceramic | High | Low | Low to moderate | Towing, hauling, larger tires |
| Semi-metallic | High | High | Higher | Severe duty where dust and noise do not matter |
Signs your truck needs this upgrade
- Brake fade on long grades while towing, where the pedal feels softer or stopping distance grows as the brakes heat up.
- Pulsation in the pedal after hard stops, often caused by uneven pad deposits or rotor thickness variation.
- Pads near the wear indicator, usually around 3mm of remaining friction material.
- Rotors below minimum thickness, which is stamped on the rotor and should be measured with a micrometer.
If any of these apply and the truck regularly carries weight, moving to a heavy-duty kit rather than a basic replacement is a sensible choice.
Quick answers
Is the Z36 better than PowerStop’s Z23 Evolution Sport?
For towing and heavy loads, yes. The Z23 is aimed at daily-driven cars and light trucks, while the Z36 targets heavier duty cycles.
Do I need to replace both axles at once?
No. Replace pads and rotors in axle pairs. Front brakes usually wear faster, so the front-only kit is a common choice when rear brakes still have life.
Verdict: if your truck works hard, the PowerStop Z36 kit is a convenient and well-matched upgrade. Verify fitment, inspect calipers and follow the bed-in steps for the best results.
