VENTURA COUNTY
6AM - 11:30PM • MOBILE SERVICE •
Call or Text (805) 790-8162
EZ Car Keyz California bear mascot
Fast Response Locksmith

2021 Ford F-350
Key Replacement - Save vs Dealer in Ventura County

BSIS Licensed | NASTF Certified

Available
2021 Ford F-350 Smart Key
Smart Key

Not all locksmiths are created equal. EZ Car Keyz is BBB A+ rated, fully licensed and insured, and trusted by thousands of customers across the area. Your vehicle is in good hands.

CA BSIS LICENSE LCO#6792
1,000+ 5-Star Reviews Fully Insured Background Checked
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
Certified 2021 Ford F-350 key replacement info from EZ Car Keyz Thousand Oaks CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Certified 2021 Ford F-350 key replacement info from EZ Car Keyz Thousand Oaks CA
Key specialists
Google Guaranteed
Passed Google's screening and verification process
Fixed pricing
Fully Insured
Liability coverage and background-checked technicians
Fast mobile service
8+ Years in Business
Over 10,000 keys made across the region
805 Special
10% OFFCODE:EZ-805-2026

🔥 Licensed and insured, plus savings 🔥

Applies to all dealer-quality key services
REDEEM (805) 790-8162

2021 Ford F-350
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Ford key typeMost Popular
2021 Ford F-350 Smart Key M3N-A2C93142600
FCC IDM3N-A2C93142600Part #164-R8149Buttons5BatteryCR2450Frequency902 MHzRemote StartYes
✓ In Stock · Programmed On-Site
OEM quality 2021 Ford F-350 key fob from EZ Car Keyz Thousand Oaks CA
Skip the Dealer Markup
Professional key, honest rate
OEM quality 2021 Ford F-350 key fob from EZ Car Keyz Thousand Oaks CA
🔧 PRO TIP
The 2021 F-350 runs a 5-button smart key fob on a CR2450 battery. That's a larger cell than most fords use, and owners sometimes swap in a CR2032 thinking it'll do the job. It won't seat right and you'll get ghost behavior: intermittent range, door handle touch unlock dropping out, or the truck not waking up when you walk up. Always confirm it's a CR2450 before chasing a programming problem. Also worth knowing: on these Super Duty smart key setups, the fob and the ignition authorization talk to each other through the vehicle security system. A fob that was cloned cheap or sourced from a parts-pull without being properly erased can show up as recognized one minute and flagged the next. Buy the right blank, program it clean, done.
Related services: Ignition Repair · Smart Key

Certified Mobile vs Dealer Service

See why 1,000+ customers trust us over the dealership

EZ Car Keyz
EZ Car Keyz
Dealership
Average Cost
✓ $$
✕ $$$$
Location
✓ We come to you
✕ You drive there
Wait Time
✓ 20-45 min
✕ 2-5 days
Same-Day
✓ Yes
✕ Rarely
All Keys Lost
✓ No problem
✕ Tow required
OEM Quality
✓ Yes
✓ Yes
EZ Car Keyz wins 5 out of 6
BSIS licensed with OEM quality guaranteed
Book Service (805) 790-8162

2021 Ford F-350 Smart Key Replacement - Fast, Affordable & Professional

Out in Westlake Village, right near the water, I got a call from a guy with a 2021 F-350. He'd watched a few of my Ford key videos before he ever needed me, which I always appreciate. He already understood the difference between cutting a key and actually programming one. So when his fob started acting up, he skipped the guesswork and just called.

When I pulled up, he explained the situation: the truck wasn't waking up on approach consistently. Sometimes it would, sometimes it wouldn't. He'd already swapped the battery, but he wasn't sure he'd used the right size. He had.

I confirmed the fob was the factory 5-button unit matching the factory FCC ID on the fob. Checked the battery seating first. It was fine. Ran a quick diagnostic to see what the vehicle security system was reading. The fob was enrolled, but signal behavior was weak in a way that pointed to the fob itself starting to go, not the truck. He'd been running this one hard. It had taken some knocks.

We programmed a new fob on site. I walked every button, tested door handle response on both sides, confirmed the truck was reading the key at normal approach distance from across the parking area. Three clean starts. Done.

He mentioned the dealer had quoted him a wait and a bill that made him pause before he even asked about towing. Coming to him in Westlake Village, same day, for a fraction of that, was an easier call than he expected.

Save vs the Dealer on Your Ford F-350 Key

Get your key for hundreds less than the dealer. Same quality, same result, better price.

Get Pricing (805) 790-8162 Text Us
BSIS Licensed Locksmith - California License LCO#6792
BSIS Licensed
CA Bureau of Security & Investigative Services
NASTF Certified Automotive Locksmith - Vehicle Security Professional
NASTF Certified
National Automotive Service Task Force
Fully Insured Locksmith - Hiscox Liability and Vehicle Damage Coverage
Fully Insured
Liability & vehicle damage coverage
Google Guaranteed Locksmith - Verified and Background Checked
Google Guaranteed
Verified & backed by Google
Also serving: Botanic Garden Area · Casa Conejo · Conejo Oaks · Dos Vientos

Ford F-350 Rapid Response, Done Right

Rapid response in the field

Licensed locksmith replacing 2021 Ford F-350 key in Thousand Oaks CA
Smart Key | Rapid On-Site Service
2021 Ford F-350 | Ventura County
Licensed locksmith replacing 2021 Ford F-350 key in Thousand Oaks CA
2021 Ford F-350 Smart Key
2021 Ford F-350
Smart Key | Pro Grade Service
Estimated arrival time to Thousand Oaks
Proven Timing
Rapid Arrival
Available Today
Service location Thousand Oaks
Thousand Oaks
Insured Service
805 Area
Same-Day Keys (805) 790-8162

Trusted by 1,000+ Ford Drivers

Rated 5.0 on Google and Yelp

T
Tommy M.
Dec 2023
★★★★★

“Tim went above and beyond. I struggled all day trying to program a new FOB and nothing worked. Tim helped me patiently, even recommending cheaper options since I was on a tight budget. He eventually came all the way to Ojai late at night and fixed everything.”

Yelp Review
A
Alexx C.
Dec 2025
★★★★★

“My key fob stopped working while I was at Oxnard Harbor and I thought I was going to need a tow. EZ Car Keyz showed up fast, programmed a new fob, checked everything carefully, and made sure the car was fully functional before leaving.”

Google Review
M
Mark F.
Feb 2024
★★★★★

“Needed a spare car key made and chose EZ Car Keyz based on their reviews. The reviews were right. They gave me the best price, responded quickly to all my questions, came to my workplace, cut the keys on site, and finished fast.”

Yelp Review
Watch real savings, real jobs62KFollowers
5-star review of 2021 Ford F-350 key service by EZ Car Keyz Thousand Oaks CA
“Real savings, real reviews.”
5-star review of 2021 Ford F-350 key service by EZ Car Keyz Thousand Oaks CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Ford F-350 Mobile Service FAQ

Real costs, no dealer surprises

I lost all my keys to my 2021 F-350. Can you still make a new one?
Yes, all-keys-lost on the 2021 F-350 smart key system is a job we do in the field. Here's what that actually involves: the vehicle security system has to be accessed through the OBD port with professional diagnostic equipment, the existing key slots get wiped, and new fobs are enrolled from scratch. The old keys can't start the truck after that. One thing specific to this setup that trips people up: the all-keys-lost process has a built-in timed security delay. You're not waiting on slow equipment, the system itself enforces the pause. Total on-site time usually runs 45 to 60 minutes. We carry the right blanks for this fob, so there's no waiting on a part. We come to you in Thousand Oaks and handle the whole thing at your vehicle.
Do I need to tow my 2021 F-350 to the dealer if I have no working keys?
How long does an all-keys-lost replacement take on a 2021 F-350?
My 2021 F-350 shows a key-not-detected warning but the key is right there. What's going on?
Can I buy a replacement fob online and just have it programmed?
Questions? Call (805) 790-8162

Ford F-350 Key Service Areas

Certified service across the region

📍Ventura County & SB
Ventura County service area map
805 LOCAL LOCKSMITH
need a key? 🔑
Santa Barbara
Santa BarbaraETA 30-35 min
Goleta
GoletaETA 30-35 min
Isla Vista
Isla VistaETA 30-35 min
Montecito
MontecitoETA 25-30 min
Carpinteria
CarpinteriaETA 20-25 min
Ojai
OjaiETA 20-25 min
Ventura
VenturaETA 10-15 min
Santa Paula
Santa PaulaETA 20-25 min
Fillmore
FillmoreETA 25-30 min
Oxnard
OxnardETA 10-15 min
Port Hueneme
Port HuenemeETA 10-15 min
Camarillo
CamarilloETA 15-20 min
Moorpark
MoorparkETA 25-30 min
Simi Valley
Simi ValleyETA 30-35 min
Thousand Oaks
Thousand OaksETA 20-25 min
Santa BarbaraGoletaMontecitoCarpinteriaOjaiVenturaSanta PaulaFillmoreOxnardPort HuenemeCamarilloMoorparkSimi ValleyThousand Oaks
Licensed 2021 Ford F-350 locksmith service area in Ventura County CA
Licensed 2021 Ford F-350 locksmith service area in Ventura County CA
Stranded in Ventura County? We respond fast

Don’t see your city? Call us - we likely cover your area too!

SOS Call (805) 790-8162
Filmed on Location
Ford F-350 car key replacement video
113K+ Chose EZ Car Keyz

Professional 2021 Ford F-350 Key Replacement

BBB A+ rated with 1,000+ five-star reviews. Your vehicle is in certified hands. Call today.

Trusted 2021 Ford F-350 locksmith service by EZ Car Keyz Thousand Oaks CA
Need a key?
Available 6AM - 11:30PM | 7 Days a Week
Find Us
Find Your
Car Key
Ventura County