Overview
The Power Stop S4818 is a rear pair of powder-coated performance brake calipers with brackets for the 1999–2004 Jeep Grand Cherokee. The set contains one left and one right caliper, and it is a direct fit listing for the WJ generation.
The calipers are built for enthusiasts and bolt directly in place of the stock rear calipers. The caliper and bracket are remanufactured in the USA and finished in a red powder coat made for high temperature. New premium boots and seals are fitted, and silicone lubricant goes on the caliper pins for long life. Rear calipers on a Grand Cherokee that has seen salt, mud or towing often seize first, and a matched pair restores even braking from the back axle.
Key features
- Rear pair, left and right calipers
- Calipers listed with brackets
- Bolts in as a replacement for the stock rear calipers.
- Remanufactured in the USA
- High-temperature red powder coat
- New premium boots and seals
- High-temperature silicone lubricant on the pins
- Premium abutment clips where applicable
Rear brake care on the WJ
Rear brakes on a Jeep Grand Cherokee see less load than the front, but they can still seize after years of exposure to road salt and mud. Corrosion on the slide pins and bracket surfaces is the usual cause. When pads drag, the rotor heats, the wheel runs warm and fuel economy can suffer.
Before choosing rear parts, check the rotors, wheel bearings and the parking brake hardware if the vehicle has it. Replacing calipers alone may leave worn pads or a ridged rotor, and a new caliper will not correct those. Use fresh brake fluid suited to the system, and bleed the lines after the caliper change.
- Inspect rotors for ridges and heat spots
- Clean corrosion from the bracket mounting surfaces
- Replace brake hoses that show cracks or swelling
Specifications
| Brand | Power Stop |
|---|---|
| Part number | S4818 |
| UPC | 792088981080 |
| Part type | Performance brake calipers with brackets |
| Position | Rear |
| Set contents | 1 left caliper and 1 right caliper |
| Finish | High-temperature red powder coat |
| Remanufactured in | USA |
| Fit type | Direct fit |
Vehicle fitment
It fits the 1999–2004 Jeep Grand Cherokee.
The 1993–1998 Grand Cherokee ZJ and the 2005 and newer Grand Cherokee fall outside the fit for this part. It is a rear set, and front calipers use a separate part number. Match the year, model and trim to your vehicle before ordering.
Installation notes
The S4818 calipers bolt directly in place of the originals. After installation, bleed the brakes and check the parking brake action if your Grand Cherokee uses it. A short low-speed test drive helps confirm pedal feel before normal use.
What’s included
- One rear left caliper and one rear right caliper
- Brackets, listed in the title
- New premium boots and seals
- High-temperature silicone for the pins
- Premium abutment clips where applicable
Not included: pads, rotors, brake fluid and hardware not named above.









