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    Brake Pad & Rotor Specs

    2021 Jeep Grand Cherokee – Brake Pad & Rotor Specs

    AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.

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    Quick Reference

    SpecMeasurement/Part Number
    Front Pad PN (OEM)Verify with dealer
    Front Pad PN (Akebono)ASP1670 (5.7L/6.4L/3.6L w/ Heavy Duty Brakes) / ACT1670 (3.6L/5.7L Standard Brakes)
    Front Pad PN (Bosch)BE1670H (5.7L/6.4L/3.6L w/ Heavy Duty Brakes) / BC1670 (3.6L/5.7L Standard Brakes)
    Front Pad PN (Wagner)OEX1670 (5.7L/6.4L/3.6L w/ Heavy Duty Brakes) / QC1670 (3.6L/5.7L Standard Brakes)
    Front Pad PN (Power Stop)Z23-1670 (5.7L/6.4L/3.6L w/ Heavy Duty Brakes) / 16-1670 (3.6L/5.7L Standard Brakes)
    Rear Pad PN (OEM)Verify with dealer
    Rear Pad PN (Akebono)ASP1455 (All Trims)
    Rear Pad PN (Bosch)BE1455H (All Trims)
    Rear Pad PN (Wagner)OEX1455 (All Trims)
    Rear Pad PN (Power Stop)Z23-1455 (All Trims)
    Front Rotor Diameter & New Thickness13.0 in (330 mm) & 1.10 in (28 mm) (Standard Brakes) / 13.8 in (350 mm) & 1.10 in (28 mm) (Heavy Duty Brakes)
    Front Rotor Minimum Thickness1.02 in (26 mm) (Standard Brakes) / 1.02 in (26 mm) (Heavy Duty Brakes)
    Rear Rotor Diameter & New Thickness13.0 in (330 mm) & 0.87 in (22 mm)
    Rear Rotor Minimum Thickness0.79 in (20 mm)
    Caliper Piston Count (Front)2-piston (Standard Brakes) / 4-piston (Heavy Duty Brakes and SRT/Trackhawk)
    Caliper Piston Count (Rear)1-piston
    Caliper Bracket Torque (Front)129 ft-lbs (175 Nm)
    Caliper Bracket Torque (Rear)85 ft-lbs (115 Nm)
    Caliper Slide-Pin Torque (Front)26 ft-lbs (35 Nm)
    Caliper Slide-Pin Torque (Rear)20 ft-lbs (27 Nm)
    Brake Fluid SpecDOT 3 or DOT 4 (DOT 4 recommended for optimal performance)

    How to Choose Pads

    Choosing the right brake pads for your 2021 Jeep Grand Cherokee depends largely on your driving style and needs. Here's a breakdown of common types:

    • Ceramic Pads: These are popular for their quiet operation and low dust production, making your wheels cleaner for longer. They offer good stopping power for everyday driving and tend to be very durable, but may not perform as well in extreme braking situations or very cold temperatures compared to semi-metallic. Many of the aftermarket cross-references listed above are ceramic-based for a good balance of performance and comfort.

    • Semi-Metallic Pads: Composed of 30-65% metal by weight, these pads offer excellent stopping power and heat dissipation. They are a great choice for drivers who frequently haul heavy loads, tow, or demand more aggressive braking. The trade-off is often more brake dust and potentially more noise than ceramic pads. They also tend to be harder on rotors due to their metallic content.

    • Heavy-Duty/Performance Pads: Brands like Power Stop offer specific heavy-duty or performance-oriented pads. These are designed for more aggressive driving, towing, or off-road use, where consistent, fade-resistant braking is crucial. They typically feature higher friction materials and may generate more noise and dust than standard options.

    Always consider your driving habits. For most daily drivers, a quality ceramic pad will provide excellent performance and comfort. If you frequently tow, drive aggressively, or have a model with the heavy-duty brake package, a semi-metallic or performance-oriented pad might be a better choice.

    Typical Service Life

    The service life of brake pads and rotors on your 2021 Jeep Grand Cherokee can vary significantly based on driving conditions, habits, and the type of materials used. Generally, you can expect:

    • Front Brake Pads: 30,000 to 70,000 miles.
    • Rear Brake Pads: 40,000 to 80,000 miles (rear pads often last longer as the front brakes do the majority of the stopping work).
    • Rotors: Rotors can often last through two sets of pads, but it's crucial to inspect them for wear, warping, or cracking during every brake service. Many technicians recommend replacing rotors with every pad change for optimal performance and to maintain proper brake system dynamics, especially with modern vehicles where rotors are often designed to be less easily resurfaced.

    Regular inspection is key. A "pad-slap interval" (checking your pads) should be done at every oil change or at least every 10,000 to 15,000 miles. Don't wait for a warning light or noise to indicate wear; proactive inspection can prevent more costly repairs.

    Common Brake Issues for this Generation

    The 2021 Jeep Grand Cherokee, like many modern SUVs, is a heavy vehicle, which can put a significant strain on its braking system. While generally reliable, some common issues or points of attention for this generation include:

    • Premature Rotor Warping/Pulsation: This can manifest as a pulsing feeling in the brake pedal or steering wheel when braking. It's often caused by excessive heat, improper break-in procedures for new pads, or uneven lug nut torque. Using quality rotors and pads designed for the vehicle's weight and performance can help mitigate this.
    • Brake Dust: Depending on the pad material, you may notice a fair amount of brake dust accumulating on your wheels. Ceramic pads typically produce less dust than semi-metallic options.
    • Slightly Spongy Pedal Feel (after heavy use): Under very demanding driving conditions such as heavy towing or aggressive driving down mountain passes, the brake fluid can get hot, leading to a slightly spongy pedal feel. Upgrading to a higher-temperature DOT 4 brake fluid can help resist this "brake fade."
    • Noise: Squeaks or squeals can occur due to a variety of reasons, including normal wear indicators, lack of proper lubrication during installation, or certain pad compounds. Often, a proper break-in procedure and using anti-squeal shims can prevent many noise issues.

    Brake Job Cost Estimate (Parts & Labor)

    Please note: These are estimates and can vary widely based on your location, shop rates, and the specific parts chosen (OEM vs. aftermarket performance). Always get a detailed quote from your service provider.

    • Front Brake Job (Pads & Rotors): $400 - $800
    • Rear Brake Job (Pads & Rotors): $350 - $700
    • Full Brake Job (Front & Rear Pads & Rotors): $700 - $1400+

    These estimates typically include new pads, rotors, and labor. Additional costs may include caliper replacement if seized, brake fluid flush, or sensor replacement. Always discuss parts options with your technician.

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    More specs for the 2021 Jeep Grand Cherokee

    Oil Capacity & Filter

    Capacity, weight, filter PN, drain plug torque, change interval.

    Fluid Type Specs

    Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.

    Coolant Capacity & Type

    Total system capacity, OEM coolant spec, flush interval, bleed tips.

    Transmission Fluid & Service

    Trans model, fluid spec, capacity, filter PN, service interval.

    Torque Specifications

    Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.

    Tire Size & Pressure

    OEM size, cold psi, bolt pattern, wheel size, TPMS.

    Battery Size & Group

    Group size, CCA, AGM/flooded, dimensions, reset note.

    A/C Refrigerant & Oil

    R-134a or R-1234yf, charge oz, PAG oil spec.

    Bulb Sizes (Headlight, Tail, Fog)

    Headlight, fog, tail, turn, reverse, interior.

    Factory Maintenance Schedule

    Service intervals by mileage, severe-duty notes, known issues.

    Towing Capacity & Payload

    Max tow, payload, GVWR/GCWR, hitch class by trim.

    Fuse Box Diagram & Amperage

    Fuse box locations, layout, amps, and what each fuse controls.

    Serpentine Belt Routing & Length

    Belt routing, length, rib count, OEM + aftermarket PNs.

    Wheel Alignment Specifications

    Camber, caster, toe ranges (front & rear), adjustability notes.

    Paint Color Codes

    All factory colors with paint codes, sticker location, touch-up tips.

    Wiper Blade Sizes

    Driver/passenger/rear blade size, attachment, OEM + cross-refs.

    Spark Plug Type & Gap

    Plug PN, gap, torque, interval by engine.

    Transmission & Axle Gear Ratios

    Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.

    Key Fob Programming

    DIY programming steps, FCC ID, fob PN, battery, transponder.

    Same spec — other model years

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