2021 Ram ProMaster — 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
| Brake Component | Specification |
|---|---|
| Front Pad PN | OEM: verify with dealer. Aftermarket: Akebono ACT1420, Bosch BC1420, Wagner QC1420, Power Stop Z23-1420 |
| Rear Pad PN | OEM: verify with dealer. Aftermarket: Akebono ACT1421, Bosch BC1421, Wagner QC1421, Power Stop Z23-1421 |
| Front Rotor Diameter & New Thickness | 305 mm / 28 mm |
| Front Rotor Minimum Thickness | 26 mm |
| Rear Rotor Diameter & New Thickness | 305 mm / 26 mm |
| Rear Rotor Minimum Thickness | 24 mm |
| Caliper Piston Count (Front/Rear) | 2/1 |
| Caliper Bracket Torque | 130 ft-lbs |
| Caliper Slide-Pin Torque | 25 ft-lbs |
| Brake Fluid Spec | DOT 3 |
How to Choose Pads
Choosing the right brake pads for your ProMaster depends on your driving habits and budget.
- Ceramic: These pads are a popular choice for their quiet operation and low dust. They're a good all-around option for daily driving and light-duty use.
- Semi-Metallic: These pads offer better performance than ceramics, especially under heavy braking. They're a good choice for ProMasters that are frequently loaded down or used for towing.
- Heavy-Duty: If you're using your ProMaster for commercial purposes, heavy-duty pads are the way to go. They offer the best performance and durability, but they can be noisy and produce a lot of dust.
Typical Service Life
The service life of your ProMaster's brakes will vary depending on your driving habits and the type of pads you're using. However, you can expect to get around 30,000-50,000 miles out of a set of front pads and 50,000-70,000 miles out of a set of rear pads.
Common Brake Issues for This Generation
The Ram ProMaster is a reliable vehicle, but there are a few common brake issues to be aware of.
- Warped Rotors: This is the most common brake issue on the ProMaster. It's caused by heat buildup, and it can cause a pulsing sensation in the brake pedal.
- Sticking Calipers: This is another common issue, and it can cause the brakes to drag and wear out prematurely.
- Pad Slap: This is a less common issue, but it can be caused by loose or worn-out pads. It can cause a clunking noise when you apply the brakes.
Brake Job Cost Estimate
The cost of a brake job on a Ram ProMaster will vary depending on the shop you go to and the parts you use. However, you can expect to pay around $500-$700 for a front brake job and $400-$600 for a rear brake job.
Find a trusted brake shop on Repairius.
More specs for the 2021 Ram ProMaster
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
Maintenance & repair guides
2021 Ram ProMaster Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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