By Core Brake Parts Tech Team — Circleville, OH warehouse
Short answer: The Chrysler 300 (LX platform) runs 5-lug 5x115mm wheels, vented front rotors from about 320mm on V6s to 360mm on SRT Brembo cars, and a drum-in-hat parking brake. Most trims use single-piston floating calipers; SRT models add 4-piston fixed Brembos. This guide walks through the exact diagnostic steps, replacement thresholds, product comparisons, and cost breakdown so you can decide with confidence whether to DIY or take it to a shop.
Direct experience note: we ship these parts daily from our Circleville, OH warehouse to customers across the country. The picks in this guide reflect what fits, what lasts, and what our repeat-buyer mechanics come back for.

The parts that fix this — verified to fit your Chrysler 300
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What to Know About Chrysler 300 Brake Replacement
Understanding Chrysler 300 brake replacement matters because it directly affects stopping distance, brake pedal feel, and how often you replace consumables. Getting it right the first time saves both money and follow-up shop visits.
- The Chrysler 300 rides on the rear-wheel-drive LX platform, sharing its brake architecture with the Dodge Charger and Magnum.
- Every trim uses a 5-lug wheel on a 5x115mm bolt pattern with M14x1.5 studs.
- Front rotors are vented across the range; diameter grows from about 320mm on V6 cars to 360mm on SRT Brembo models.
- The parking brake is a mechanical drum-in-hat design, with small shoes riding inside the rear rotor's top hat.
- Base and mid trims use single-piston floating calipers; SRT8 and SRT models get fixed four-piston Brembo calipers.
- Rear rotor style and diameter can vary by engine and trim, so confirm vented-versus-solid before ordering parts.
Spec Chart by Vehicle Class
| Vehicle class | Pad thickness | Rotor thickness |
|---|---|---|
| Bolt pattern / lugs | 5 x 115mm, 5 lugs, M14x1.5 | Consistent across all 300 trims |
| Front rotor | ~320mm base, 345mm HEMI, 360mm SRT | Vented; diameter varies by engine |
| Rear rotor | ~320-350mm, vented on most trims | Verify vented-vs-solid by trim |
| Front caliper | Single-piston floating; SRT 4-piston fixed | SRT8/SRT run red Brembos |
| Parking brake | Drum-in-hat (top-hat drum) | Separate shoes, foot-pedal actuated |
How to Diagnose or Replace
- Loosen the five lug nuts, lift the corner, secure the vehicle on jack stands, then remove the wheel.
- Retract the caliper piston, remove the two caliper slide bolts, and hang the caliper from the suspension.
- Slide out the old pads, then remove the caliper bracket bolts to free the rotor.
- Pull the rotor; if seized, thread bolts into the puller holes or tap it gently.
- Fit the new rotor, torque the bracket bolts, then install fresh pads with new hardware and lubricant.
- Reinstall the caliper over the pads, torque the slide bolts, then pump the pedal firm.
- Refit the wheel, torque lugs to factory spec (about 110 lb-ft), and road-test carefully.
Once diagnosis is complete, order the exact replacement parts for your vehicle - fitment matters. Related Chrysler 300 brake replacement products are listed in the next section.
Recommended Parts and Where to Buy
Every product below is in stock at our Circleville, OH warehouse and ships same-day when ordered before 2 PM Eastern. Free shipping on orders over $75.
If your exact vehicle is not listed, use the site search or filter the full brake parts collection by year and make.
Cost Breakdown - DIY vs Shop
| Job | DIY parts only | Shop parts and labor |
|---|---|---|
| Front pads only | $40-90 | $150-300 |
| Front pads + rotors | $150-300 | $350-600 |
| Rear pads + rotors | $140-280 | $300-550 |
| SRT Brembo pads + rotors, front | $300-600 | $700-1200 |
DIY savings scale with vehicle size and job complexity. A full-size truck brake job saves $450-700 in labor. For most passenger cars, plan on 90-120 minutes per axle for pads only, 2-3 hours for pads plus rotors.
Install Tips - Where Most DIYers Go Wrong
- Bed in new pads with 8-10 moderate stops from 40 mph, letting the brakes cool between each.
- Clean the hub face and rotor mating surface so runout does not cause steering-wheel shudder.
- Do not reuse stretched caliper bolts on SRT Brembos; confirm bracket torque against the service manual.
Frequently Asked Questions
What's the short answer on Chrysler 300 brake replacement?
The Chrysler 300 (LX platform) runs 5-lug 5x115mm wheels, vented front rotors from about 320mm on V6s to 360mm on SRT Brembo cars, and a drum-in-hat parking brake. Most trims use single-piston floating calipers; SRT models add 4-piston fixed Brembos.
How much does Chrysler 300 brake replacement cost?
It depends on your vehicle and how much you replace. For example, front pads only runs about $40-90 in parts for a DIY job, or $150-300 at a shop with labor included. The full cost breakdown is in the table above.
What should I check first?
Key things to check: The Chrysler 300 rides on the rear-wheel-drive LX platform, sharing its brake architecture with the Dodge Charger and Magnum; Every trim uses a 5-lug wheel on a 5x115mm bolt pattern with M14x1.5 studs.
Can I do this job myself?
Many DIYers can with basic tools. The first steps are: Loosen the five lug nuts, lift the corner, secure the vehicle on jack stands, then remove the wheel; Retract the caliper piston, remove the two caliper slide bolts, and hang the caliper from the suspension; Slide out the old pads, then remove the caliper bracket bolts to free the rotor. The complete step-by-step is above.
Key Takeaways
- The Chrysler 300 (LX platform) runs 5-lug 5x115mm wheels, vented front rotors from about 320mm on V6s to 360mm on SRT Brembo cars, and a drum-in-hat parking brake. Most trims use single-piston floating calipers; SRT models add 4-piston fixed Brembos.
- Measure friction material and rotor thickness at every tire rotation - catches wear before it becomes damage.
- Replace pads at 3 mm; below 2 mm is unsafe.
- Loaded calipers (with brackets, pads, and hoses) save 1-1.5 hours of labor per side over bare calipers.
- Bed new pads properly with 8-10 medium stops from 40 to 10 mph.
- Free shipping on orders over $75; same-day shipping on in-stock orders before 2 PM Eastern.
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