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If your Jeep Grand Cherokee is showing uneven pad wear, a soft brake pedal, or fluid leaks, replacing the rear brake calipers can bring back secure, predictable stopping. The right rear calipers restore proper piston movement, ensure correct pad contact, and prevent noise or premature rotor wear. This guide focuses on carefully shortlisted rear brake calipers that match Jeep Grand Cherokee mounting and hydraulic specs. We evaluated candidates for fitment accuracy, corrosion resistance, hydraulic and piston integrity, and ease of installation. Below are the top options chosen for their balance of durability and practical serviceability, followed by guidance to help you pick the right caliper for your driving needs and maintenance plans.
Looking for other parts? See all Jeep Grand Cherokee parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | A-Premium Rear Disc Brake Caliper Assembly with Bracket for Jeep Grand Cherokee (1999–2004) — 2‑Piece Set |  |
| Best Quality Built to a higher standard if you want something more solid | PowerStop S5420 Rear Powder-Coated Brake Caliper Pair (Red) |  |
| Best Value The sweet spot between price and what you get | Torchbeam Rear Brake Caliper Set (Left and Right) for Jeep Grand Cherokee 1999–2004 |  |
| Best Budget The cheapest option that still gets the job done reliably | cciyu Rear Left Brake Caliper Assembly with Bracket (18B4818) |  |
| Highest Rated A top-rated pick with lots of positive feedback | Detroit Axle Rear Brake Caliper Pair with Brackets for 1999–2004 Jeep Grand Cherokee |  |
| Most Popular A crowd favorite that many people choose with confidence | Detroit Axle Rear Right Brake Caliper with Bracket |  |
A-Premium Rear Disc Brake Caliper Assembly with Bracket for Jeep Grand Cherokee (1999–2004) — 2‑Piece Set
| Vehicle fitment | Jeep Grand Cherokee 1999-2004 (rear left & right) |
|---|---|
| Piston count | 1 piston |
| Inlet/Bleeder port | 3/8×24 |
| Piston OD | 1.89 inches |
This A-Premium caliper pair is a direct replacement rear caliper assembly packaged with the mounting bracket, phenolic piston, and installation hardware so you can rebuild both sides at once. It is intended for routine restoration or repair of a 1999–2004 Grand Cherokee and is coated against rust to help with longevity in wet or salty climates. Installation is typical for single-piston rear calipers and reviewers report it fits and functions like a factory replacement in normal use. Notable conveniences include the included bracket and bleed port sized to standard fittings, which simplify a brake job for a DIYer or home mechanic. A few users noted minor fitment fiddling with the pad retention spring and clip holes that required slight clearance work during install, so expect a short bit of adjustment rather than bolt‑straight fit every time. The manufacturer backs the part with a one-year unlimited-mileage guarantee which adds peace of mind for a balanced buyer focused on value.
Best for: Buyers who want a cost-conscious, factory-style rear caliper replacement for a 1999–2004 Grand Cherokee and prefer a complete matched pair to do the job in one service interval.
Less Ideal for: Do not choose this if you need performance or upgraded braking components beyond stock replacements or if you require guaranteed bolt‑perfect OEM clip fitment without any minor adjustment.
- Sold as a matched left and right rear caliper set for complete axle replacement.
- Includes bracket, phenolic piston, and installation hardware to reduce extra purchases.
- Antirust coating on calipers helps resist corrosion in wet or salted-road conditions.
- Fits specified 1999–2004 Grand Cherokee rear applications and uses standard bleed/inlet port sizes for easy hookup.
- Some customers had to modify pad-retaining spring holes or use original clips for a perfect fit, adding minor installation work.
Verdict: A practical, value-focused matched rear caliper set that restores factory-style braking on a 1999–2004 Grand Cherokee without the need to buy extra mounting parts.
PowerStop S5420 Rear Powder-Coated Brake Caliper Pair (Red)
| Fits | Dodge Durango 2011-2021; Jeep Grand Cherokee 2011-2021 |
|---|---|
| Position | Rear |
| Material Type | Powder Coated |
| Included Components | Set of Calipers, Hardware |
These PowerStop S5420 rear calipers replace the factory rear calipers with a high-temp powder-coated pair that bolts on without modifications. They are supplied as a complete set with seals, guide pins, dust boots, bleeder screws, pad attachment hardware, and mounting brackets, and each caliper is pressure tested and inspected before shipping. The red powder coat is easy to clean and resists corrosion while giving an aggressive look behind wheels. For drivers focused on stronger braking feel and appearance, these calipers work well as a direct replacement and upgrade for daily-driven Durango and Grand Cherokee models listed in the fitment. The included hardware simplifies installation for a competent DIYer or shop. Buyers should note the 90-day/3,000-mile warranty and that some users reported long-term durability issues on heavily used vehicles, so these are best for street performance and visual upgrades rather than extreme track duty.
Best for: Buyers who want a direct-fit rear caliper that improves pedal feel and rear braking appearance on a daily-driven Grand Cherokee or Durango without needing modifications.
Less Ideal for: Not the best choice for people who need heavy-duty track or towing calipers where extended warranty coverage and proven high-mileage durability are priorities.
- Complete kit includes both calipers plus seals, guide pins, dust boots, bleeder screws and mounting hardware for straightforward installation
- Powder-coated finish resists rust and is easy to clean while improving brake appearance
- Calipers are pressure tested and inspected to ensure they function on arrival
- Warranty is limited to 90 days or 3,000 miles which is shorter than many aftermarket brake components
- Some reviewers reported a caliper seizing under heavier daily use, indicating potential longevity concerns for intensive applications
Verdict: A bolt-on rear caliper pair that adds corrosion-resistant finish and improved braking feel for street-focused Grand Cherokee and Durango owners.
Torchbeam Rear Brake Caliper Set (Left and Right) for Jeep Grand Cherokee 1999–2004
| Position | Rear |
|---|---|
| Piston material | Phenolic |
| Number of pistons | 1 |
| Piston OD | 1.89 in |
These Torchbeam rear calipers arrive as a matched left and right set intended to replace the factory rear calipers on a 1999–2004 Grand Cherokee. Each assembly includes the caliper, mounting bracket, a single phenolic piston and hardware to simplify installation. In practical use they behave like a direct replacement: buyers report straightforward fitment and easy installation when the vehicle application is confirmed. The phenolic piston reduces heat transfer to brake fluid and the included brackets and hardware mean you rarely need extra parts for a standard swap. On the downside there have been occasional reports of nonstandard bleed screws and bracket fitment differences on other vehicle applications, so verify fitment and check slide pin dimensions before installing. Torchbeam backs the caliper with a one-year unlimited-mileage guarantee, which helps for peace of mind after installation. For routine rear caliper replacement on the specified Grand Cherokee years this set provides a cost-effective, ready-to-install option that mirrors factory function.
Best for: Buyers who want a practical, ready-to-install replacement rear caliper set for a 1999–2004 Grand Cherokee and prioritize a straightforward DIY swap or garage repair.
Less Ideal for: Shoppers who need a complete brake overhaul with pads and rotors included or who require exact factory-identical fasteners and fittings for heavily modified brake systems.
- Sold as a matched left and right set for complete rear replacement
- Includes mounting brackets and installation hardware to simplify swap
- Phenolic piston reduces heat transfer to brake fluid for stable performance
- Designed to match factory mounting location for the 1999–2004 Grand Cherokee
- Some customers report variations in bleed screw size and bracket details on other applications
- Not supplied with brake pads or rotors, so those may need to be purchased separately
Verdict: A practical, budget-friendly matched rear caliper set that provides a near-factory replacement and easy installation for 1999–2004 Jeep Grand Cherokee rear brakes.
cciyu Rear Left Brake Caliper Assembly with Bracket (18B4818)
| Position | Rear Left |
|---|---|
| OEM Part Number | 18B4818 |
| Piston Material | Phenolic |
| Bleeder Port Size | 3/8 x 24 |
| Inlet Port Size | 3/8 x 24 |
This cciyu rear left brake caliper assembly replaces part 18B4818 and is offered as a single, painted unit with bracket so you can install it directly on a 1999–2004 Grand Cherokee WJ with 4.0L or 4.7L engines. It uses a single phenolic piston and standard 3/8 x 24 inlet and bleeder ports, so it works with common brake lines and bleeding tools. The caliper is promoted as meeting or exceeding factory specifications and reviewers report straightforward fitment and quiet operation. For a budget repair it removes the need to rebuild an old caliper and includes the bracket to simplify installation. Be aware this listing is a single caliper without pads or hardware beyond the bracket, so you will need to supply pads, mounting bolts, and bleeding supplies; a few users have reported occasional sticking on long-term use, so inspect and lubricate slide pins during installation. Overall this is a solid low-cost replacement for routine rear caliper failures when you want a factory-style swap without paying for a remanufactured OEM unit.
Best for: Buyers who need an affordable, plug-in replacement caliper to repair a single rear brake on a Grand Cherokee WJ and prefer a quick factory-style swap rather than a rebuild or remanufactured part.
Less Ideal for: Those restoring a vehicle to concours condition, performing a full axle service that requires matched pairs, or buyers who want a complete kit with pads and hardware included.
- Direct-fit replacement for rear left (18B4818) Grand Cherokee WJ applications, simplifying installation
- Includes mounting bracket so no separate bracket purchase is needed
- Phenolic piston and standard port sizes match common brake systems for easy plumbing and bleeding
- Painted finish resists corrosion and the unit is marketed to reduce noise during braking
- Low price point makes it a cost-effective option for budget repairs
- Sold as a single caliper without brake pads or mounting hardware beyond the bracket
- A small number of users report intermittent sticking after extended use, so long-term reliability may vary
Verdict: A budget-friendly, direct-fit rear left caliper that includes the bracket and delivers a fast factory-style replacement for Grand Cherokee WJ owners needing a low-cost repair.
Detroit Axle Rear Brake Caliper Pair with Brackets for 1999–2004 Jeep Grand Cherokee
| Position | Rear Left and Right |
|---|---|
| Piston Size | 1.89 inch (47.88mm) |
| Piston Material | Phenolic |
| Piston Quantity | 1 |
| Brake Caliper Bracket Included | Yes |
This Detroit Axle kit supplies a matched pair of rear calipers and mounting brackets intended as direct replacements for 1999–2004 Jeep Grand Cherokee rear brakes. Each caliper uses a single 1.89 inch phenolic piston and comes with brackets and necessary hardware so you can swap both sides during one service visit. In real-world use the units are described by buyers as smooth, leak-free, and straightforward to install as a one-for-one swap with factory parts, which makes them suitable for routine brake maintenance and restoring proper stopping feel. The phenolic piston helps resist corrosion and heat-related expansion compared with some metal pistons, and the included brackets reduce the risk of missing components during a DIY job. Important limitations: you still need to bleed the system after install, box labeling may not mark left/right which can complicate bleeding, and a few reports note bracket fitment differences on non-GC vehicles, so verify fitment for your exact configuration before installation.
Best for: Buyers prioritizing dependable, factory-style replacements who want a complete rear caliper swap that restores braking performance with parts that are straightforward to install and service.
Less Ideal for: Shoppers seeking premium or performance brake upgrades or those who need multi-vehicle universal fitment; installers who prefer pre-bled, plug-and-play calipers may look elsewhere.
- Sold as a matched left/right pair with mounting brackets and hardware for a complete rear-side replacement
- Phenolic piston construction resists corrosion and thermal expansion compared with some metal pistons
- Multiple reports of smooth operation and no leaks after install
- Designed for direct swap into the 1999–2004 Jeep Grand Cherokee to simplify DIY or shop replacement
- Boxes are not always labeled left/right which can cause confusion during installation and bleeding
- Some buyers reported bracket fit issues when used on other similar vehicles, so bracket geometry may vary
Verdict: A practical, reliability-focused rear caliper pair with brackets that delivers factory-style fit and dependable stopping performance for 1999–2004 Jeep Grand Cherokee owners.
Detroit Axle Rear Right Brake Caliper with Bracket
| Position | Rear Right |
|---|---|
| Piston Size | 1.89 inch (47.88mm) |
| Piston Material | Phenolic |
| Brake Caliper Bracket Included | Yes |
This Detroit Axle rear right caliper ships as a complete unit with the mounting bracket, so you can swap it into a 1999–2004 Jeep Grand Cherokee without machining or separate bracket purchases. The caliper uses a single 1.89 inch phenolic piston and comes with bracket hardware included, which speeds installation if you are doing a one-for-one replacement. In real-world use it behaves like a factory-quality replacement: reviewers report smooth operation, reliable sealing at the hose and piston, and strong stopping power when paired with new pads and rotors. Because it is a direct replacement, expect straightforward bolt-on installation but plan to bleed the brake system after fitting and check orientation carefully since left/right mix-ups can cause bleeding headaches. A few buyers noted bracket fitment issues on non-matching applications, so confirm exact year and build before ordering. Overall this caliper is a practical choice if you want a ready-to-install rear-right unit that mirrors factory performance for the specified Grand Cherokee years.
Best for: Buyers who prioritize documented real-world reliability and want a one-piece, ready-to-install rear-right replacement that matches factory braking behavior for a 1999–2004 Grand Cherokee.
Less Ideal for: Those who need a universal or multi-vehicle caliper solution or who are working on vehicles outside the specified 1999–2004 Grand Cherokee fitment should look elsewhere.
- Complete kit includes caliper and mounting bracket for a one-piece swap
- Phenolic 1.89 inch piston intended to match factory braking feel
- Comes with mounting hardware to simplify installation
- Designed and tested for impact, wear, and fatigue to improve durability
- Fitment problems reported on some vehicle variations where bracket alignment differs
Verdict: If you want a tested, bolt-on rear-right replacement that replicates factory braking for a 1999–2004 Jeep Grand Cherokee, this Detroit Axle caliper with bracket is a practical, reliable pick.
Choosing the Right Jeep Grand Cherokee Rear Brake Calipers: Key Factors to Consider
Fitment and Mounting Compatibility
Correct fitment is essential because the caliper must align precisely with the rotor and brake pads. Mismatched mounting bolt spacing or incorrect piston bore diameter can produce uneven pad contact, vibration, or rubbing that damages rotors. When evaluating options, confirm the caliper matches the Grand Cherokee's rear mounting brackets, sliding-pin design if applicable, and the parking brake actuator style used on your model.
Fitment also affects brake line routing and the orientation of the bleeder screw. A caliper with the bleeder in the wrong position can trap air and make bleeding difficult. For vehicles with integrated parking brake mechanisms, ensure the replacement caliper provides the same mechanical or electronic parking brake interface to preserve function and safety.
Piston and Seal Quality
The piston and sealing components control hydraulic pressure transfer and prevent fluid leaks. Pistons made from corrosion-resistant materials and seals formulated for high-temperature brake fluid improve longevity and reduce the risk of leaks or sticking. A caliper with high-quality seals maintains consistent pedal feel and reduces the likelihood of fluid contamination or external seepage.
Inspect whether the caliper uses a single-piece piston, multiple pistons, or guide-pin-mounted pistons and ensure that the design suits the Grand Cherokee's braking requirements. Better seal designs also tolerate brake fluid service intervals and resist swelling or drying, which can cause dragging or a spongy pedal.
Corrosion Protection and Coatings
Brake calipers are constantly exposed to water, road salt, and debris. Durable coatings and corrosion-resistant materials prevent pitting and seizing of pistons and hardware. A caliper with superior rust protection reduces the chance of stuck slide pins or frozen pistons that lead to uneven pad wear and reduced braking efficiency.
Consider finishes such as zinc plating, ceramic coatings, or e-coating that are rated for road salt exposure. Pay attention to exposed hardware like guide pins and bleeder screws; replaceable or sealed hardware can extend caliper service life and simplify future maintenance.
Parking Brake Integration
Many Jeep Grand Cherokee models use rear calipers that incorporate a mechanical or electronic parking brake mechanism. Replacement calipers must replicate that function to maintain parking brake performance and prevent binding or failure. Mechanical parking brake actuators require correct lever geometry and travel, while electrically actuated systems need compatible actuators and service procedures.
If the caliper includes a removable parking brake assembly or separate actuator, ensure replacement parts or procedures are documented. Improper parking brake integration can lead to incomplete pad retraction, increased drag, or inability to hold the vehicle on a slope.
Serviceability and Replacement Hardware
Ease of installation matters for both DIYers and shops. Calipers that come with new mounting bolts, slide-pin hardware, seals, and bleeder screws reduce installation time and lower the risk of reusing worn parts that can cause early failure. Units designed for straightforward bleeding and with accessible bleeder screws make bench bleeding and on-vehicle bleeding easier.
Consider whether the caliper requires special tools, such as piston-rotating tools for integrated parking brake actuators. Availability of rebuild kits or replacement components also affects long-term maintenance costs and whether the caliper can be serviced instead of fully replaced.
Remanufacture Standards and Testing
Remanufactured calipers can be cost-effective but only when they meet rigorous rebuilding standards. A high-quality reman process includes thorough cleaning, inspection of casting integrity, replacement of pistons and seals, and pressure testing to ensure no leaks. Units that receive dimensional checks and functional testing reduce the risk of premature failure compared with minimally refurbished cores.
Ask whether remanufactured options are pressure tested and whether critical tolerances are restored. Reman units that fail to meet spec can contribute to uneven braking, pedal pulsation, or leaks that compromise safety.
When To Replace Rear Brake Calipers On Your Grand Cherokee
Certain symptoms indicate it is time to inspect or replace rear brake calipers. Look for fluid leaks near the caliper body, a persistently soft or sinking pedal, uneven pad wear on the rear rotors, or the vehicle pulling to one side under braking. Any of these signs warrant a thorough caliper inspection before replacing pads or rotors.
Regular maintenance intervals and visual inspections are particularly important if you drive in wet or salted conditions. Catching a failing caliper early prevents rotor damage and keeps braking performance predictable.
- Visible brake fluid on the caliper or around the wheel hub
- Uneven pad wear between inner and outer rear pads
- Brakes dragging after release or hot rear rotors
- Pulling to one side during braking
DIY Replacement Tips for Rear Calipers
Replacing rear calipers on a Grand Cherokee is achievable for a competent DIYer with proper tools. Use the correct jack and stands, bleed the brake system properly, and follow torque specs for mounting bolts. Keep a clean work area to avoid contaminating brake components.
If the caliper integrates a parking brake mechanism, consult vehicle-specific service information for piston rotation or actuator adjustment procedures. Always bench-bleed new calipers when possible and then perform a thorough on-vehicle bleed to remove trapped air.
- Always support the vehicle safely and relieve hydraulic pressure before disconnecting lines
- Cap the brake line or plug fittings to prevent contamination
- Use new copper washers or sealing hardware if required by the design
Maintaining Rear Calipers to Extend Service Life
Preventive maintenance extends caliper life. Keep slide pins clean and lubricated with high-temperature brake grease to ensure free movement. Periodically inspect dust boots and seals for tears or degradation and replace components before they allow corrosion or fluid loss.
When replacing pads or rotors, inspect the caliper mounting surfaces and hardware. Replace corroded bolts and hardware to ensure secure mounting and prevent uneven wear caused by misaligned calipers.
- Lubricate guide pins during pad service and inspect for wear
- Check for seized pistons by measuring pad retraction after release
- Replace torn dust boots and degraded rubber seals promptly
How Parking Brake Adjustments Affect Caliper Life
Improper parking brake adjustment can leave the rear pads constantly engaged, increasing caliper and pad wear as well as heat buildup. For mechanical systems, ensure the parking brake cable and equalizer provide correct free play. For electronic parking brakes, use the correct service mode during caliper or pad replacement to avoid overextension of the actuator.
Regularly inspect the parking brake mechanism integrated into the caliper for smooth operation. Address any binding early to prevent the piston from sticking and causing rotor scoring or pad glazing.
- Verify parking brake free play at recommended intervals
- Use diagnostic or service mode for electronic parking brake servicing
- Replace worn cables or actuators before they damage calipers
When to Consider Rebuilding Instead of Replacing
Rebuilding rear calipers can be cost-effective if the caliper body and piston bores are in good condition. A proper rebuild replaces seals, pistons if needed, and slide hardware while restoring hydraulic integrity. Ensure rebuild kits include OEM-equivalent seals and that the bore surface is inspected for pitting before reuse.
If corrosion has compromised the bore or casting, replacement is safer. Rebuilt calipers should be pressure tested to confirm they do not leak and that pistons move freely under hydraulic pressure.
- Rebuild when bores and castings are intact and free of pitting
- Replace if pistons or bores show deep corrosion or scoring
- Pressure test rebuilt calipers before installation
Still looking for the perfect fit?
Select your Jeep Grand Cherokee configuration to see the most relevant Brake Calipers recommendations
How We Chose the Best Jeep Grand Cherokee Rear Brake Calipers
We prioritized rear brake calipers that match Jeep Grand Cherokee OEM mounting points, piston bore size, and bleed-port orientation to avoid brake line or bracket modifications. Fitment accuracy was the first filter because improper alignment causes uneven pad wear and brake pull. Corrosion and coating quality were next, since calipers operate in a harsh environment; we favored units with protective finishes and materials that limit seizing on exposed hardware. Hydraulic integrity was assessed by reviewing seal design and piston material to reduce leaks and maintain pedal feel. Serviceability was also important: calipers with accessible bleeder valves and compatible mounting hardware reduce shop time. We considered remanufacturing standards where applicable, looking for complete rebuilds with new seals and hardware rather than partial repairs. Excluded items included calipers requiring permanent bracket modifications, incomplete core exchanges without documented reman specs, and units lacking clear fitment data for the Grand Cherokee. Ultimately, selections reflect durability, correct hydraulic performance, and straightforward installation for typical owners and independent shops.
Our full evaluation process is outlined in our review methodology.
FAQ
How long do rear brake calipers typically last on a Grand Cherokee?
Caliper life varies with climate and maintenance. Often they last many years, but driving in salted or wet conditions can shorten life. Regular inspections and lubrication of slide pins help extend service intervals.
What are common brake caliper symptoms I should watch for?
Common symptoms include fluid leaks near the wheel, a soft or sinking pedal, uneven pad wear, hot or warped-looking rear rotors after short drives, and the vehicle pulling while braking. These suggest caliper or hydraulic issues.
Can I rebuild rear calipers instead of buying replacements?
You can rebuild calipers when the piston bores and body are sound and parts are available. Rebuild kits must include proper seals and hardware. If bores are pitted or castings are corroded, replacement is safer.
Do rear calipers on the Grand Cherokee include the parking brake?
Many rear calipers integrate a mechanical or electronic parking brake mechanism. It depends on the vehicle's original equipment. Ensure any replacement reproduces that function to avoid parking brake issues.
How should I bleed the brakes after installing new rear calipers?
Bench-bleed new calipers when possible to remove trapped air, then perform a systematic on-vehicle bleed starting from the wheel farthest from the master cylinder. Use the recommended brake fluid and follow torque specs for safe reassembly.
What maintenance keeps rear calipers from sticking?
Keep guide pins clean and lubricated, replace torn dust boots promptly, and flush brake fluid at recommended intervals to limit internal corrosion. Address any parking brake binding early to prevent piston sticking.
Final Verdict
When replacing rear brake calipers on a Jeep Grand Cherokee, prioritize correct fitment, corrosion protection, and reliable piston and seal design. Balance the choice between a remanufactured unit that meets thorough rebuild standards and a new replacement that matches mounting and parking brake integration. Focus on options that simplify installation and servicing, and factor in local driving conditions such as frequent exposure to salt or water. With the right caliper, you restore pedal feel, maintain even pad wear, and keep braking performance consistent and safe.
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- Check out all Jeep Grand Cherokee parts & accessories
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