Skip to main content
Skip to Filters
548 listings
  • Price Drop
    $72,450
    fair price
    $579 below market
    • 37,921 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • Bates Ford (184 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Lebanon, TN / 184 miles away from Birmingham, AL

    We'll trade for anything that don't eat!Silver 2021 Ford F-350SD Platinum DRW 4WD 10-Speed Automatic Power Stroke 6.7L V8 DI 32V OHV Turbodiesel Virtu...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: Yes

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3DT0MEC05754
    Stock: U7579
    Certified Pre-Owned: No
    Listed since: 12-11-2024

  • $91,987
    great price
    $15,953 below market
    • 1,804 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • Bates Ford (184 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Lebanon, TN / 184 miles away from Birmingham, AL

    We'll trade for anything that don't eat!White Metallic 2024 Ford F-350SD King Ranch DRW 4WD 10-Speed Automatic Power Stroke 6.7L V8 DI 32V OHV Turbodi...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3DT2REF09322
    Stock: P7825
    Certified Pre-Owned: No
    Listed since: 04-22-2025

  • Price Drop
    Photos not available
    $60,490
    fair price
    $609 above market
    • 6,549 miles
    • No accidents, 2 owners, personal use
    • 8'2” bed, 6.7l, 8cyl
    • Jacky Jones Ford of Hayesville (195 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Hayesville, NC / 195 miles away from Birmingham, AL

    Blue 2023 Ford F-350SD XL DRW 4WD 10-Speed Automatic Power Stroke 6.7L V8 DI 32V OHV Turbodiesel 4WD.Recent Arrival!

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3DM2PEC07809
    Stock: T10589A
    Certified Pre-Owned: No
    Listed since: 02-23-2025

  • $63,999
    fair price
    $351 below market
    • 80,390 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • John Megel Chevrolet (164 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Dawsonville, GA / 164 miles away from Birmingham, AL

    4WD.Recent Arrival!JOHN MEGEL CHEVROLET - - WHERE PRICE SELLS CARS AND SERVICE KEEPS CUSTOMERS.Prices do not include government fees which include tax...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3DT3MEC17221
    Stock: T252778A
    Certified Pre-Owned: No
    Listed since: 05-26-2025

    • 7,420 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • Bates Ford (184 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Power Driver Seat
    • Tire Pressure Warnin...
    Close

    Located in Lebanon, TN / 184 miles away from Birmingham, AL

    We'll trade for anything that don't eat!Dump Truck !!!!Oxford White 2023 Ford F-350SD XLT DRW 4WD 10-Speed Automatic Power Stroke 6.7L V8 DI 32V OHV T...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3DTXPEE04069
    Stock: U7866
    Certified Pre-Owned: No
    Listed since: 04-30-2025

  • Price Drop
    $79,520
    great price
    $8,148 below market
    • 16,540 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.7l, 8cyl
    • ALM Nissan Newnan (115 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Newnan, GA / 115 miles away from Birmingham, AL

    4WD. Black Metallic 2024 Ford F-350SD King Ranch 4WD 10-Speed Automatic Power Stroke 6.7L V8 DI 32V OHV Turbodiesel

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3BT0REF48963
    Stock: PEC12333A
    Certified Pre-Owned: No
    Listed since: 04-23-2025

    • 35 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 8'2” bed, 6.8l, 8cyl
    • CarMax Cool Springs (165 mi away)
    • Back-up camera
    • Bluetooth
    • Tire Pressure Warnin...
    • USB Inputs
    • Trip Computer
    Close

    Located in Franklin, TN / 165 miles away from Birmingham, AL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FTRF3CA5PED46425
    Stock: 26950983
    Certified Pre-Owned: No

    • 8,242 miles
    • No accidents, 2 owners, personal use only
    • 8'2” bed, 6.8l, 8cyl
    • CarMax Norcross (150 mi away)
    • Back-up camera
    • Bluetooth
    • Tire Pressure Warnin...
    • USB Inputs
    • Trip Computer
    Close

    Located in Norcross, GA / 150 miles away from Birmingham, AL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FTRF3AA3PEC60307
    Stock: 26985694
    Certified Pre-Owned: No

    • 24 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 8'2” bed, 6.8l, 8cyl
    • CarMax Rivergate (191 mi away)
    • Back-up camera
    • Bluetooth
    • Tire Pressure Warnin...
    • USB Inputs
    • Trip Computer
    Close

    Located in Madison, TN / 191 miles away from Birmingham, AL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FTRF3CAXPED46419
    Stock: 26950982
    Certified Pre-Owned: No

  • New Listing
    • 23,359 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 8cyl
    • Carvana - Atlanta (134 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Atlanta, GA / 134 miles away from Birmingham, AL

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3DM9PED88388
    Stock: 2003744786
    Certified Pre-Owned: No
    Listed since: 05-29-2025

    • 56,057 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • CarMax Birmingham (14 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Blind Spot Monitorin...
    • Power Driver Seat
    Close

    Located in Hoover, AL / 14 miles away from Birmingham, AL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3BT2MEC45305
    Stock: 27043512
    Certified Pre-Owned: No

  • Price Drop
    $39,950
    great price
    $11,967 below market
    • 107,279 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 7.3l, 8cyl
    • 216 Auto Sales (27 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Blind Spot Monitorin...
    Close

    Located in McCalla, AL / 27 miles away from Birmingham, AL

    2022 Ford F350 Crew Cab, Single wheel, 8ft bed, 7.3 Gas V8, 10spd auto, STX package, All power, Keyless entry, etc. 1 Owner Clean Carfax, Great servic...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT7W3BN7NEC13710
    Stock: C13710
    Certified Pre-Owned: No
    Listed since: 10-13-2024

  • Price Drop
    • 204,297 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • Heath Attaway Auto Sales (45 mi away)
    • Back-up camera
    • Bluetooth
    • Blind Spot Monitorin...
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Cullman, AL / 45 miles away from Birmingham, AL

    Visit Heath Attaway Auto Sales online at heathattawayautosales.com to see more pictures of this vehicle or call us at 256-735-4201 today to schedule ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3CT4MEC29671
    Stock: HA2081
    Certified Pre-Owned: No

  • New Listing
    • 50,080 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 8cyl
    • CarMax Gainesville Georgia (173 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Gainsville, GA / 173 miles away from Birmingham, AL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3DT2PEC40218
    Stock: 26608878
    Certified Pre-Owned: No

    • 70,744 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • Jacky Jones Chrysler Dodge Jeep Ram (185 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Power Driver Seat
    • Tire Pressure Warnin...
    Close

    Located in Cleveland, GA / 185 miles away from Birmingham, AL

    Vehicle DetailsIntroducing the 2023 Ford F-350 Super Duty XLT, a robust and reliable choice for those who require both power and versatility. ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8X3DM9PEC02135
    Stock: R7388A
    Certified Pre-Owned: No
    Listed since: 02-28-2025

    • 100,425 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • Jacky Jones Chrysler Dodge Jeep Ram (185 mi away)
    • Back-up camera
    • Bluetooth
    • Blind Spot Monitorin...
    • Tire Pressure Warnin...
    • Parking sensors
    Close

    Located in Cleveland, GA / 185 miles away from Birmingham, AL

    Vehicle DetailsGet ready to experience unparalleled power and reliability with this 2023 Ford F-350 Super Duty XL! This beast of a truck is me...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3CT4PEC89048
    Stock: R7466A
    Certified Pre-Owned: No
    Listed since: 02-01-2025

  • Price Drop
    $66,031
    good price
    $6,633 below market
    • 14,028 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • Ford of Murfreesboro (162 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Blind Spot Monitorin...
    • Tire Pressure Warnin...
    Close

    Located in Murfreesboro, TN / 162 miles away from Birmingham, AL

    2024 Ford F-350SD XLCARFAX One-Owner. Clean CARFAX.BACK UP CAMERA, SYNC EQUIPPED, LOW MILES, 4x4/AWD, CLEAN CARFAX, CERTIFIED, LOCAL TRADE, ONE OWNE...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3DT1REF72542
    Stock: EC84802A
    Certified Pre-Owned: Yes
    Listed since: 04-19-2025

  • Photos not available
    • 65,286 miles
    • No accidents, 1 owner, personal use only
    • Lynn Layton Chevrolet (72 mi away)
    Close

    Located in Decatur, AL / 72 miles away from Birmingham, AL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3BN6MEC80026
    Stock: 5-0026
    Certified Pre-Owned: No
    Listed since: 05-14-2025

  • New Listing
    • 51,000 miles
    • No accidents, 1 owner, personal use only
    • ALM Kennesaw (129 mi away)
    • 4WD
    • Heated front seats
    • Backup camera
    • Remote keyless entry
    • Bluetooth
    Close

    Located in Kennesaw, GA / 129 miles away from Birmingham, AL

    4 INCH LIFT...OVERSIZED TIRES...HARD TO FIND...CLEAN...PLATINUM...BACKUP CAMERA..SMART DEVICE INTEGRATION..BLUETOOTH..FULLY LOADED OPTIONS HEAT REAR D...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3BMXPEC99979
    Stock: REF65627A
    Certified Pre-Owned: No
    Listed since: 06-02-2025

  • Price Drop
    • 35,999 miles
    • 1 accident, 1 owner, personal use only
    • 8'2” bed, 6.7l, 8cyl
    • Jacky Jones Chrysler Dodge Jeep Ram (185 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Cleveland, GA / 185 miles away from Birmingham, AL

    Vehicle DetailsExperience the power and versatility of the 2023 Ford F-350 Super Duty XL, now available at our dealership. This robust truck i...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3DT3PED51621
    Stock: 1336U
    Certified Pre-Owned: No
    Listed since: 04-03-2025

  • Price Drop
    $66,999
    good price
    $4,965 below market
    • 43,905 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.7l, 8cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Idaho Falls, ID / 1,530 miles away from Birmingham, AL

    CarFax No Accidents Reported,CarFax 1-Owner,Rare Find,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Heated Seats,Heated Steer...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1FT8W3BT7NED89921
    Stock: 6023A
    Certified Pre-Owned: No

Showing 22 - 42 out of 548 listings

Consumer Reviews for the Ford F-350 Super Duty

Read recent reviews for the Ford F-350 Super Duty
Overall Consumer Rating
4.2 out of 5 stars40 Reviews
Write a vehicle reviewSee all 40 reviews
  • 5 star
    (70%)
  • 4 star
    (8%)
  • 3 star
    (3%)
  • 2 star
    (10%)
  • 1 star
    (10%)
5 out of 5 stars

Huge leap forward comparible to 1999

Swillardo, 01/06/2017
2017 Ford F-350 Super Duty Lariat 4dr Crew Cab 4WD SB (6.2L 8cyl 6A)
This is absolutely the finest pickup I have ever sat in, drove, or used. It rides better than my 99, 02, 03, and 13. It is quieter than all of them, gets better mileage than all of them, and would run circles around all of them in terms of power, acceleration, and towing. The interior is freakishly well though out, Sync 3 finally has Ford in the infotainment game, and they have even … made the seats more comfortable. The visibility out of the cab is amazing, and the supplemental cab heater produces more heat more quickly than the last generation. There just isn't a place where they haven't improved this truck. This is the same leap forward that I felt when I bought my 1999 F250. Ford may take awhile to do a ground up redesign, but when they do it, they go big and all-in. There is only one downside and that is price. I paid invoice for mine and that was pretty close to $66,000. My 13 with similar equipment was about $56,000 at invoice. $10 K in 4 years is nothing to sneeze at. The day is coming soon where I won't be able to afford to buy them any longer, That will be a sad day. But do I think it was worth the jump? Absolutely. The 2017 is $10K better than the 13 if you can come up with the coin for it. Trust me and go drive one.
Report abuse

Used 2021 Ford F-350 Super Duty in Birmingham, AL Values

Estimated values
2021 Ford F-350 Super Duty Platinum 4dr Crew Cab 4WD LB DRW (6.7L 8cyl Turbodiesel 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$54,406$58,686$62,988
Clean$53,411$57,553$61,710
Average$51,751$55,666$59,582
Rough$49,593$53,213$56,815

The average list price of a used 2021 Ford F-350 Super Duty in Birmingham, Alabama is $60,886. The average mileage on a used Ford F-350 Super Duty 2021 for sale in Birmingham, Alabama is 46,733. Based on the average mileage of 46,733 for used 2021 Ford F-350 Super Duty for sale in Birmingham, AL and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used Ford F-350 Super Duty 2021 in Birmingham, Alabama to be $51,751.

Filters
Skip to Results

Applied Filters4Active

Select Buying Experience

Location

Search radius200 miles
Search radius

Make & Model

Year

New / Used

Price & Payments

Price Rating

Trim

Truck Details

Mileage

Accidents & History

Engine & Drivetrain

Exterior Color

Interior Color

Total Seating

Edmunds Review

Features

Options & Packages

Listing Details


* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.