will these keys and fobs work on a 2007 ford mustang?

They worked in my 2006 mustang. There are 2 procedures you need to do once key(s) are cut. One for fobs and one for the keys. Both are simple and available on youtube. This assumes you have one current key and fob. I only had one original set and it only took a few minutes to do both procedures to give me 3 sets.

Can a key be produced from original cut in half

Most likely, take it to Walmart. They are the cheapest place that I know of who cuts the key and programs it. I'll warn you the key fob is garbage. I program it and it won't shut off the alarm. You have to open the car door and put the key into the ignition.

lost original have a spare but only opens the door, does not start the vehicle ... can you help?

I had one original key when bought the used car, theses were spare keys and fob. With all the keys I still had to go to the locksmith and had it reprogramed, change code with new, old. My only suggestion will be you have to pay a locksmith, no quick fix, no YouTube video as well, however, you can try.

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Car Key Fob Keyless Entry Remote fits Ford, Lincoln, Mercury, Mazda with Ignition Key (CWTWB1U331 GQ43VT11T CWTWB1U345 4-btn), Set of 2

Car Key Fob Keyless Entry Remote fits Ford, Lincoln, Mercury, Mazda with Ignition Key (CWTWB1U331 GQ43VT11T CWTWB1U345 4-btn), Set of 2

Product ID: 86806735

Details

Brand
USARemote
Color
f-345-4btn [2]
Item Weight
1 Ounces
Material
Plastic
Vehicle Service Type
Car

🔋Complete electronic assembly with battery

🔑Fits Ford, Lincoln, Mercury, Mazda models

🛠️User-programmable with step-by-step guide

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VT7902

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
USARemote
Color
f-345-4btn [2]
Item Weight
1 Ounces

Description

🔐 Double the keys, double the freedom—program your ride like a pro!

COST SAVING POWER PACK - Two key fobs and ignition keys included—save hundreds compared to dealership prices.
EXTENDED RANGE CONTROL - Operate your vehicle from up to 50 feet away—even through closed windows.
UNIVERSAL COMPATIBILITY - Seamlessly fits multiple Ford, Lincoln, Mercury, and Mazda models for ultimate convenience.
DURABLE RELIABLE BUILD - Long-lasting plastic construction designed to withstand daily use and keep you moving.
EFFORTLESS DIY PROGRAMMING - Unlock full control with easy step-by-step instructions—no locksmith needed!

This set of 2 keyless entry remotes with ignition keys fits Ford, Lincoln, Mercury, and Mazda vehicles, featuring 4-button control and user-programmable functionality. Designed for DIY enthusiasts, it includes complete electronic assemblies with batteries and detailed instructions, enabling significant savings over dealership replacements while maintaining durable, reliable performance.

Specifications

ASIN	B06XWGQBFM
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#18,660 in Automotive ( See Top 100 in Automotive ) #74 in Keyless Entry Systems #5,298 in Automotive Replacement Parts
Brand	USARemote
Brand Name	USARemote
Button Quantity	4
Color	f-345-4btn 80bit [2]
Compatible with Vehicle Type	Car
Customer Reviews	4.3 out of 5 stars 2,825 Reviews
Item Weight	1 Ounces
Manufacturer	USARemote
Manufacturer Part Number	f-345-4btn 80bit
Material	Plastic
Material Type	Plastic
Model Number	8542135986
Number of Buttons	4
UPC	688946482892
Vehicle Service Type	Car

Reviews

T**S

24.07.2023

R**N

7.11.2023

K**S

6.04.2026

V**Y

3.07.2024

S**S

29.04.2026

A**R

3.04.2026

M**K

20.06.2023

H**G

26.04.2025

R**N

12.10.2023

G**I

29.08.2022

X**T

17.11.2025

A**N

16.06.2025

ر**ح

12.05.2024

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VT7902

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

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