2018 Ram 1500: Brake Pad & Rotor Specifications
Your complete guide to brake parts, specs, and service for the 2018 Ram 1500.
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: 2018 Ram 1500 Brake Specs
| Specification | Front | Rear |
|---|---|---|
| OEM Pad PN | Verify with dealer (e.g., 68514193AA) | Verify with dealer (e.g., 68071112AC) |
| Aftermarket PNs | Akebono ASP1399, Bosch BC1399, Wagner SX1399, Power Stop Z36-1399 | Akebono ASP1398, Bosch BC1398, Wagner SX1398, Power Stop Z36-1398 |
| Rotor Diameter | 336 mm (13.2") | 352 mm (13.9") |
| Rotor New Thickness | 28 mm | 22 mm |
| Rotor Min. Thickness | 26.4 mm | 20.4 mm |
| Caliper Piston Count | 2 | 1 |
| Caliper Bracket Torque | ~130 ft-lbs (176 Nm) | ~100 ft-lbs (136 Nm) |
| Caliper Slide-Pin Torque | ~30 ft-lbs (41 Nm) | ~25 ft-lbs (34 Nm) |
| Brake Fluid Spec | DOT 3 | DOT 3 |
Note: Part numbers and torque specs can vary based on specific sub-model and equipment. Always verify with your VIN or a trusted service manual before ordering parts or torquing fasteners.
The 2018 Ram 1500 is the final model year of the fourth generation, a truck celebrated for its coil-spring rear suspension and comfortable ride. But comfort can't compromise control, and the brake system is paramount to keeping this full-size truck and its payload safe. Whether you're a DIYer getting ready for a brake job or a discerning owner wanting to know what goes into the work, this guide covers the essential specifications and considerations for your truck's brakes.
How to Choose Brake Pads
Selecting the right brake pad compound is crucial and depends entirely on how you use your truck. The original equipment (OE) pads are a hybrid semi-metallic compound, offering a good balance of performance, noise level, and durability for daily driving. However, aftermarket options allow you to tailor brake performance to your specific needs.
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Ceramic: For the owner who primarily uses their Ram 1500 as a commuter vehicle, ceramic pads are an excellent choice. They are known for being exceptionally quiet and producing very little brake dust, which helps keep your wheels cleaner. Brands like Akebono Pro-ACT and Bosch QuietCast are leading options. While their "bite" can feel slightly less aggressive than semi-metallic pads, they provide smooth, consistent, and confident stopping power for everyday situations.
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Semi-Metallic: If you frequently haul moderate loads or want to retain that strong initial bite of the factory pads, a quality semi-metallic pad is the way to go. These pads use a higher percentage of metallic fibers in their friction material, which helps dissipate heat more effectively than ceramic pads. This makes them more resistant to brake fade during harder stops. Wagner ThermoQuiet or Bosch Blue are solid choices in this category, offering reliable performance that meets or exceeds OE standards.
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Heavy-Duty / Towing: For the Ram owner who regularly tows a heavy trailer or carries significant weight in the bed, upgrading to a heavy-duty or towing-specific pad is a must. These pads are engineered for maximum performance under high-heat conditions. Power Stop's Z36 Truck & Tow kit, which often includes drilled and slotted rotors, is a very popular and effective upgrade. These carbon-fiber ceramic formulas provide the high-temperature stability needed to prevent brake fade on long downhill grades while managing heavy loads.
Typical Service Life
Brake life is highly variable. For a 2018 Ram 1500 used for typical daily driving and commuting, you can expect the front brake pads to last between 30,000 and 50,000 miles. The rear brake pads often last longer, typically in the 50,000 to 70,000-mile range, because the front brakes handle the majority of the braking force.
Rotors generally last for two sets of brake pads, but this is not a hard-and-fast rule. If you allow your pads to wear down to the metal backing plates, the rotors will be destroyed instantly. Factors that significantly reduce brake life include:
- Towing and Hauling: Increased weight requires more braking energy, which translates to more heat and faster wear.
- Aggressive Driving: Hard, last-minute braking generates excessive heat and wears pads and rotors much faster than smooth, gradual stops.
- Environment: Hilly or mountainous terrain requires more frequent and harder braking. Similarly, stop-and-go city traffic is tougher on brakes than open-highway driving.
Common Brake Issues for This Generation
The fourth-generation Ram 1500 has a generally reliable brake system, but a few common issues have been noted by owners and technicians:
- Warped Rotors: Like many heavy vehicles, the Ram 1500 can be susceptible to rotor warping, which manifests as a steering wheel shudder or brake pedal pulsation when stopping from highway speeds. This is often caused by excessive heat build-up and can be exacerbated by improper lug nut torque. Upgrading to high-quality aftermarket rotors can help mitigate this issue.
- Sticking Caliper Slide Pins: The pins that allow the brake caliper to float or "slide" can become corroded or gummed up, especially in regions with heavy road salt use. When a pin sticks, it causes uneven pad wear, with the inner or outer pad wearing out prematurely. During any brake service, it is critical to clean and re-lubricate these pins with a high-temperature silicone brake grease.
- Premature Rear Pad Wear: Some owners have reported faster-than-expected rear brake wear. This can sometimes be linked to sticky slide pins or, in some cases, an overactive electronic stability control (ESC) system that uses the rear brakes for minor corrections.
Brake Job Cost Estimate
The cost of a brake job can vary widely based on your location, the shop's labor rate, and the quality of parts used.
- DIY: If you perform the work yourself, you can expect to pay between $250 to $500 for parts (pads and rotors for both front and rear axles), depending on the brand and performance level you choose.
- Professional Installation: Having a professional shop replace pads and rotors on a single axle (front or rear) will typically cost between $400 and $700. A full four-wheel brake job (all pads and rotors) will likely range from $800 to $1,300+.
Opting for basic, budget-friendly parts will place you at the lower end of that spectrum, while choosing premium, heavy-duty, or performance-oriented parts from a top-tier shop will push the cost toward the higher end.
Find a trusted brake shop on Repairius.
More specs for the 2018 Ram 1500
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
2018 Ram 1500 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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