The best Tom's Key purchase is rarely the cheapest fob on the page. It is the one that matches your exact vehicle, arrives with the blade already cut, and can be programmed by whoever is going to program it. Get those three right and a spare car key stops being a dealership problem.
Tom's Key Company sells spare and replacement keys direct, with Key by Photo blade cutting and DIY programming through its PairMyKey system. Below are the picks worth knowing, grouped by what you are trying to solve rather than by model year.
How to pick the right replacement key
Four checks, in order.
- Part number and FCC ID. Every listing publishes both. Match them against your current key rather than trusting the model year alone.
- Button count. A five-button fob with remote start will not fit a car that never had remote start, and a three-button will leave you short.
- Programming path. Listings tagged PMK or PBC are programmable with PairMyKey. Listings tagged ND are marked non-DIY and need a dealership or automotive locksmith.
- Blade cutting. Add Key by Photo at checkout so the emergency blade ships cut for your vehicle. Tom's Key strongly recommends cutting it in case your vehicle or the remote battery dies.
Those tags do more work than the product photos. Two listings can show the same proximity flip key and differ only in the suffix, because the vehicle it is destined for decides whether a home programming path exists at all. Reading the code is not pedantry here, it is the whole decision.
It also helps to be honest about which key you are buying. A daily-driver replacement and a spare that lives in a kitchen drawer are different purchases, and the catalogue is priced as though it knows that.
Best all-in-one DIY kits
The Ultimate DIY Car Key Replacement Kit is the flagship. Tom's Key calls it the fastest, most affordable DIY car key replacement solution available, and each version bundles a PairMyKey programmer, a bypass cable, one smart key and Key by Photo service. You download the PairMyKey app, connect the programmer to the OBD2 port and follow the steps on your phone.
Best for Chrysler minivans: the seven-button Pacifica and Voyager kit
Built for the Chrysler Pacifica 2019 to 2026 and Voyager 2020 to 2025, this kit pairs the full seven-button smart key with the programmer, bypass cable and photo-cut blade. If you run a sliding-door minivan, the button count is the whole point, so a downgraded fob is a false saving.
Best for Jeep Grand Cherokee: the four-button OEM kit
Covers the 2018 to 2021 Grand Cherokee with a genuine OEM smart key including remote start. There is a three-button version of the same kit for vehicles without it, which is the cleaner buy if your original key has three buttons.
Best for Wrangler and Gladiator owners
Two kits cover the Jeep Gladiator 2020 to 2025 and Wrangler 2018 to 2025: a four-button like new refurbished OEM smart key with remote start, and a three-button version. Both ship as full bundles with programmer, bypass cable and Key by Photo.
Best for 2018 Dodge and Chrysler performance cars
The five-button kit built for the Dodge Challenger and Charger and the Chrysler 300, all 2018, covers trunk release and remote start in one fob. It is the most feature-complete of the car-side bundles.
All current bundles are listed together at Tom's Key Company.
Best standalone smart keys
If you already own a programmer, or a locksmith is handling the pairing, buy the key on its own.
- Chrysler and Dodge four-button, CHRSK-4B-603-K. Brand new aftermarket, covering lock, unlock, trunk and panic for select push-to-start vehicles. Replaces part numbers including 56046758AA and 56046758AB. Tom's Key frames it as a cost-effective alternative to dealership options.
- Chrysler and Dodge five-button, DJSK-5B-TRUNK-RS-TMB. Lock, unlock, panic, trunk release and remote start, replacing FCC ID M3N-40821302 and a long list of part numbers including 56046759AC and 68225803AB.
- Chrysler and Dodge four-button with trunk release, DJSK-4B-TR-M3M-TMB. Replaces part numbers 68394196AA, 68155686AB and 68394190AA, FCC ID M3M-40821302 or M3N-40821302, with a 4A AES chip.
- Jeep Grand Cherokee five-button OEM, JEEPSK-5B-RS-HR-M3N-TMB. Brand new OEM with lock, unlock, remote start, hatch release and panic, part numbers 68143505AC, AB and AA.
- Jeep proximity flip keys, JEEPFK-3B-PROX. A brand new uncut proximity smart flip key with lock, unlock and panic for select Jeep vehicles, sold in both programmable and non-DIY versions.
The pattern across these is consistent: aftermarket where an equivalent exists, OEM where it does not, and part numbers published either way. That transparency is what makes buying a key online reasonable rather than a gamble, since the fob either matches your vehicle's numbers or it does not.
Best pick for Ford drivers
The FORPSK-5B-TRS-FOB-PDL is the standout non-Stellantis option: a brand new aftermarket five-button smart key for select Ford vehicles covering lock, unlock, panic, trunk release and remote start. It replaces part numbers 164-R7995 and CJ5T-15K601-DX, FCC IDs M3N5WY8609 and M3N5WY8610, and uses a Texas 4D 63 80 bit chip. The standard edge emergency key insert ships uncut unless you add Key by Photo, so add it.
Best value: refurbished OEM keys
Refurbished is where the pricing story gets interesting. Tom's Key describes its like new refurbished OEM keys as delivering identical performance, functionality and appearance as a brand new OEM key at a fraction of the cost, which makes them the obvious candidate for a backup key.
- CDJ-7B-5900-REFURB. Seven buttons covering lock, unlock, hatch, left and right sliding doors, remote start and panic for select Chrysler vehicles. Part numbers 68217832ADR, ACR and ABR.
- JEEPSK-REFURB-5B-RS-HR-M3N-TMB. A refurbished OEM five-button with logo for Jeep Grand Cherokee, with remote start and hatch release.
- JEEPFK-4B-RS-REFURB-PROX. A refurbished OEM uncut proximity flip key with lock, unlock, panic and remote start for select Jeep vehicles, sold in both programmable and non-DIY variants.
Watch the suffix on that last one. The same physical key appears as PBC, which is programmable, and as ND, which is not. If keeping your own spare in the glovebox is part of a wider tidy-up, our category-by-category car accessory upgrades covers what else earns its place in the cabin.
Best pick for older turn-key vehicles
Not every car has push-button start. The FORKEY-128-HS transponder key covers select Lincoln vehicles with a traditional turn-key ignition, replacing part numbers 5923293 and 164-R8128 with a HITAG Pro 128-bit transponder chip. It ships with an uncut key blade ready to be cut to match your ignition, which is precisely the job Key by Photo exists for.
A pre-cut spare for an older vehicle is one of the more genuinely useful gifts you can give a driver, and it sits well beside the practical picks in our gifts for car lovers roundup.
Tom's Key buying FAQ
What do the PMK, PBC and ND tags mean?
PMK and PBC listings are programmable through the PairMyKey system. ND listings are marked non-DIY, meaning there is currently no do-it-yourself programming solution and you must contact a dealership or automotive locksmith.
Should I buy the kit or just the key?
Buy the kit if you have no programmer and want the whole job done at home; it includes the programmer, bypass cable, key and Key by Photo. Buy the key alone if a professional is pairing it or you already own the hardware.
Do I have to add Key by Photo?
No, but the emergency blade ships uncut without it. Tom's Key strongly recommends cutting the emergency key in case your vehicle or the remote battery dies, and having it cut before shipping saves a locksmith trip. Compare the options at Tom's Key Company.