2018 Ford F-250 Super Duty — 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 | 165 ft-lb / 224 Nm (Aluminum wheels) | |
| Oil Drain Plug | 20-25 ft-lb / 27-34 Nm | Depending on engine and pan material |
| Transmission Drain Plug | 15-18 ft-lb / 20-24 Nm | For 6R140 TorqShift transmission |
| Brake Caliper Bracket Bolts (Front) | 185-199 ft-lb / 250-270 Nm | For F-250 models |
| Brake Caliper Bracket Bolts (Rear) | 185-199 ft-lb / 250-270 Nm | For F-250 models |
| Brake Caliper Slide Pins (Front) | 35-39 ft-lb / 47-53 Nm | For F-250 models |
| Brake Caliper Slide Pins (Rear) | 35-39 ft-lb / 47-53 Nm | For F-250 models |
| Axle Nut (Front) | 20-24 ft-lb / 27-33 Nm (Adjusting nut) + 18-22 ft-lb / 24-30 Nm (Locknut) | Refer to OEM for specific adjusting procedure |
| Axle Nut (Rear) | 18-22 ft-lb / 24-30 Nm (Adjusting nut) + 129-140 ft-lb / 175-190 Nm (Locknut) | Refer to OEM for specific adjusting procedure |
| Glow Plugs (6.7L Power Stroke Diesel) | 12-14 ft-lb / 16-19 Nm | 6.7L Diesel only. No spark plugs for diesel engines. |
| Valve Cover Bolts | 89-106 in-lb / 10-12 Nm | For 6.7L Power Stroke Diesel. Apply RTV where specified. |
Wheel lug torque pattern
For the 2018 Ford F-250 Super Duty, the wheel lug nuts should be tightened in a star pattern (also known as a cross pattern). This ensures even pressure across the wheel hub and prevents rotor warping or wheel distortion. Most F-250 models use 8 lug nuts per wheel. Always tighten in stages, gradually increasing torque to the final specification.
Brake torque notes
Brake components are critical for safety. When working on the brakes of your 2018 Ford F-250 Super Duty, it's paramount to adhere to the specified torque values for caliper bracket bolts and slide pins. Over-torquing can strip threads or crack components, while under-torquing can lead to loose parts, excessive wear, or even brake failure. Always clean old threadlocker or rust from bolts and threads, and apply new threadlocker if specified by the manufacturer. Lubricate slide pins with appropriate high-temperature brake grease to ensure smooth operation and even pad wear.
Why torque matters
Precise torque application is not just a suggestion; it's a fundamental aspect of vehicle maintenance and repair, especially for a heavy-duty truck like the 2018 Ford F-250 Super Duty. Every fastener on your truck is designed to be tightened to a specific tension, which is achieved by applying the correct torque.
Safety: Incorrectly torqued fasteners can lead to catastrophic failures. Imagine a wheel coming loose at highway speeds, or a brake caliper detaching. The consequences are severe. Proper torque ensures that components remain securely fastened under all operating conditions.
Component Longevity: Under-torquing can cause fasteners to loosen over time due to vibrations, leading to premature wear on components. Conversely, over-torquing can stretch bolts, strip threads, or crack the surrounding material. This weakens the fastener and the components it secures, leading to costly repairs down the line.
Performance and Reliability: Correct torque contributes to the overall stability and performance of your vehicle. For instance, evenly torqued wheel nuts prevent wheel wobble and extend bearing life. Properly torqued engine and transmission components ensure seals are effective and prevent leaks.
Preventing Damage: Specifically, for the aluminum wheels common on the F-250, proper lug nut torque is crucial to prevent damage to the wheel studs and the wheels themselves. For the oil and transmission drain plugs, correct torque prevents leaks without stripping the pan threads.
Always refer to the OEM service manual for the most accurate and up-to-date torque specifications, especially for critical fasteners. While we strive for accuracy, variations can exist based on specific configurations and production changes.
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More specs for the 2018 Ford F-250 Super Duty
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
2014 F-250 Super Duty
2015 F-250 Super Duty
2016 F-250 Super Duty
2017 F-250 Super Duty
2019 F-250 Super Duty
2020 F-250 Super Duty
Maintenance & repair guides
2018 Ford F-250 Super Duty 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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