The service and repair manual for the 2021 Ford F-350 Super Duty — 6.7L V8 and 7.3L V8 and 6.2L V8 engines, 17 trims. Matched to this exact model year, so the specifications and sequences are the ones Ford published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2021 |
|---|---|
| Engines | 6.7L V8 — 406 cu in, OHV, turbocharged 7.3L V8 — 445 cu in, OHV 6.2L V8 — 379 cu in, SOHC |
| Trims | Lariat Crew Cab Pickup 4-Door · XLT Crew Cab Pickup 4-Door · XLT Extended Cab Pickup 4-Door · Limited Crew Cab Pickup 4-Door · King Ranch Crew Cab Pickup 4-Door · XLT Cab & Chassis 2-Door +11 |
| Federal record | 15 recalls · 91 complaints · 238 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 F-350 Super Duty manual






03 / ContentsSections in the manual
- Quick Lookups 3,136
- General Information 2,310
- Accessories & Equipment 3,926
- Heating, Ventilation & A/C (HVAC) 300
- Body & Frame 944
- Maintenance 73
- Brakes 267
- Restraints 183
- Drivelines & Axles 214
- Steering 236
- Electrical 2,745
- Suspension 281
- Engine Mechanical 505
- Transmission 487
- Engine Performance 5,476
04 / Known issuesRecalls on federal record for the 2021 F-350 Super Duty
- Visibility — windshield › critical fasteners · 21V090000Ford motor company (ford) is recalling certain 2021 f-150 and 2020-2021 f-250, f-350, f-450, and f-550 super duty vehicles. during manufacturing, the windshield may not have been properly bonded to t.
- Steering · 20E090000Icon vehicle dynamics, llc (icon) is recalling all 05-up fsd 2.5 centerline stabilizer kits with part number 65050. the kits were sold as an accessory for certain 2005-2021 ford f-250 4x4 and f-350 4.
- Fuel System, Diesel · 22V013000Ford motor company (ford) is recalling certain 2021 super duty f-250, f-350, f-450, f-550, f-600, and medium duty f-650 and f-750 vehicles equipped with 6.7l diesel engines. a small void may be prese.
- Power Train — axle hubs · 21V390000Ford motor company (ford) is recalling certain 2021 f-350, f-450, f-550, and f-600 vehicles equipped with dual rear wheels and front wheel hub extenders. the front wheel hub extenders may be improperl.
- Power Train — axle assembly · 21V536000Ford motor company (ford) is recalling certain 2020-2021 f-350 super duty pickup trucks equipped with 6.7l diesel engines and dana model 275 rear axles. the rear axle housing may not support the load.
- Trailer Hitches — fifth wheel assembly · 21V379000Ford motor company (ford) is recalling certain 2021 super duty f-350 and f-450 vehicles equipped with a fifth wheel left-hand mounting bracket that may be cracked.
- Structure — frame and members › underbody shields · 22V087000Ford motor company (ford) is recalling certain 2017-2022 f-250 and f-350 super duty vehicles equipped with gasoline engines and aluminum driveshafts. underbody heat and noise insulators may loosen an.
- Visibility — windshield wiper/washer › linkages · 22V250000Ford motor company (ford) is recalling certain 2020-2021 f-150, expedition, 2020-2022 super duty f-250, f-350, f-450, f-550, and 2020-2021 lincoln navigator vehicles. the windshield wiper arms may br.
- Equipment — other › owners/service/other manual · 23V420000Ford motor company (ford) is recalling certain 2018-2023 expedition and lincoln navigator vehicles equipped with third-row seating; and 2019-2023 f-super duty f-250, f-350, f-450, and f-550 supercab v.
- Fuel System, Diesel — delivery › fuel pump · 24V957000Ford motor company (ford) is recalling certain 2020-2022 f-super duty f250, f350, f450, f550, f600, and 2021-2022 f-650, f750 vehicles. biodiesel deposits may form on the pump drivetrain roller compon.
- Back Over Prevention — sensing system › camera · 25V048000Ford motor company (ford) is recalling certain 2021 expedition, 2021-2022 super duty f-250, f-350, f-450, f-550, f-600, and 2020-2022 lincoln corsair vehicles. the rearview camera may display a blank.
- Fuel System, Gasoline — delivery › fuel pump · 25V455000Ford motor company (ford) is recalling certain 2021-2023 bronco, explorer, lincoln aviator, f-250 sd, f-350 sd, f-450 sd, f-550 sd, 2021-2022 lincoln navigator, mustang, f-150, and 2022 expedition ve.
- Steering — column · 25V626000Ford motor company (ford) is recalling certain 2020-2021 f-250, f-350, and f-450 vehicles. the steering column upper shaft may detach from the steering column and result in a loss of steering control.
- Back Over Prevention — software · 25V686000Ford motor company (ford) is recalling certain 2020-2022 f-250 sd, f-350 sd, and f-450 sd vehicles. the 360-degree view camera system may not display a rearview image properly in certain lighting cond.
- Fuel System, Diesel — delivery › fuel pump · 26V158000Ford motor company (ford) is recalling certain 2020-2022 f-super duty f250, f350, f450, f550, 2021-2022 f600, and 2022 f750 vehicles previously repaired incorrectly under recall number 24v957. biodies.
Owners have filed 91 complaints and Ford has issued 238 technical service bulletins for the 2021 F-350 Super Duty. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 F-350 Super Duty manual
Is this manual specific to the 2021 F-350 Super Duty?
Yes. It is the OEM manual matched to the 2021 model year, covering the 6.7L V8 and 7.3L V8 and 6.2L V8 across the Lariat Crew Cab Pickup 4-Door, XLT Crew Cab Pickup 4-Door, XLT Extended Cab Pickup 4-Door, Limited Crew Cab Pickup 4-Door, King Ranch Crew Cab Pickup 4-Door, XLT Cab & Chassis 2-Door, XL Crew Cab Pickup 4-Door, XLT Cab & Chassis 4-Door, XL Cab & Chassis 2-Door, XL Standard Cab Pickup 2-Door, XL Plus Cab & Chassis 2-Door, XLT Standard Cab Pickup 2-Door, Lariat Cab & Chassis 4-Door, Lariat Extended Cab Pickup 4-Door, XL Cab & Chassis 4-Door, Platinum Crew Cab Pickup 4-Door, XL Extended Cab Pickup 4-Door trims. Specifications and procedure sequences are the ones Ford published for this year.
What 2021 F-350 Super Duty problems does it help with?
15 recalls are on federal record for the 2021 F-350 Super Duty, covering visibility, steering, fuel system, diesel. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Ford dealers.
Does it include 2021 F-350 Super Duty wiring diagrams?
Yes — the complete wiring diagrams for the 2021 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $55.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther F-350 Super Duty years and 2021 Ford models
2024 F-350 Super Duty · 2023 F-350 Super Duty · 2022 F-350 Super Duty · 2020 F-350 Super Duty · 2019 F-350 Super Duty · 2018 F-350 Super Duty · 2017 F-350 Super Duty · 2016 F-350 Super Duty · 2015 F-350 Super Duty · all 26 years
2021 Ford Bronco · 2021 Ford Bronco Sport · 2021 Ford E-350 Super Duty · 2021 Ford E-450 Super Duty · 2021 Ford EcoSport · 2021 Ford Edge · 2021 Ford Escape · 2021 Ford Expedition · 2021 Ford Explorer · 2021 Ford F-150 · 2021 Ford F-250 Super Duty · 2021 Ford F-450 Super Duty · every 2021 model