2018 Ram 2500 Torque Specifications
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
| Fastener | Torque (ft-lb / Nm) | Notes |
|---|---|---|
| Wheel Lug Nuts | 135-140 ft-lb / 183-190 Nm | |
| Oil Drain Plug | 30-35 ft-lb / 41-47 Nm | Verify with new crush washer or gasket |
| Transmission Drain Plug | 20-25 ft-lb / 27-34 Nm | Verify with new gasket |
| Front Brake Caliper Bracket Bolts | 130-150 ft-lb / 176-203 Nm | |
| Rear Brake Caliper Bracket Bolts | 110-130 ft-lb / 149-176 Nm | |
| Brake Caliper Slide Pins | 25-35 ft-lb / 34-47 Nm | Apply high-temp grease to pins |
| Front Axle Nut (2WD/4WD) | 180-200 ft-lb / 244-271 Nm | Refer to specific hub assembly instructions |
| Rear Axle Flange Bolts | 90-100 ft-lb / 122-136 Nm | Not an axle nut, but common for rear axle service |
| Glow Plugs (Diesel) | 11-13 ft-lb / 15-18 Nm | Use anti-seize on threads |
| Valve Cover Bolts | 8-10 ft-lb / 11-14 Nm | Tighten in stages and sequence |
| Intake Manifold Bolts | 10-12 ft-lb / 14-16 Nm | Tighten in stages and sequence |
Wheel lug torque pattern
When tightening the wheel lug nuts on your 2018 Ram 2500, always follow a star or cross pattern. This ensures even seating of the wheel against the hub, preventing warping of the rotor or potential loosening of the lug nuts over time. Tighten the nuts in several passes, gradually increasing the torque until the final specification is reached. For dual-rear-wheel configurations, follow the manufacturer's specific instructions, often involving a similar cross pattern on both sets of lug nuts.
Brake torque notes
Brake components are critical for your safety, and proper torque is paramount. When working on the brakes of your 2018 Ram 2500, pay close attention to the specific torque values for the caliper bracket bolts and slide pins. Always replace torque-to-yield bolts if specified by the manufacturer, typically caliper bracket bolts. Apply high-temperature, silicone-based lubricant to the caliper slide pins to ensure smooth operation and prevent seizing. Never use impact wrenches to tighten brake bolts as this can overtighten and damage components or lead to improper seating. Hand-tighten and use a calibrated torque wrench for all final adjustments. Uneven torque on brake components can lead to premature wear, noise, or compromised braking performance.
Why torque matters
Proper fastener torque is not just a suggestion—it's a fundamental aspect of vehicle safety and longevity. Every bolt, nut, and stud on your 2018 Ram 2500 is designed to operate within a specific clamping force. When fasteners are under-torqued, they can vibrate loose, leading to catastrophic component failure, fluid leaks, or dangerous situations like a wheel detaching. Conversely, over-torquing can stretch and weaken fasteners, causing them to break, strip threads, or even deform components, leading to premature wear and potential material failure. For example, over-tightening an oil drain plug can strip the threads in the oil pan, leading to costly repairs. Over-tightening valve cover bolts can warp the cover or compress the gasket unevenly, causing oil leaks. Adhering to the manufacturer's specified torque values ensures that components are held securely, gaskets seal properly, and stress is distributed as designed, preventing costly repairs and maintaining the structural integrity of your truck.
Disclaimer: The torque specifications provided are for general reference for a 2018 Ram 2500. Always consult your official OEM service manual or a reputable repair database for the most accurate and up-to-date specifications for your specific vehicle configuration. Critical safety fasteners should always be verified in the OEM service manual.
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More specs for the 2018 Ram 2500
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.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
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 2500 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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