KEYDIY KD-B21-4 Knife-Style 4-Button Blank Flip Key Remote — 315/433MHz
FitsUniversal· 2016–2016
More KEYDIY universal keys — and which tool programs themTrade pricing for locksmiths & shops
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Low stock — 5 or fewer left. Order soon.
Volume pricing on this SKU
1–4 units
Wholesale
5–9 units
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10–24 units
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25+ units
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Ships from Ontario — Shipped to all 50 states from our Ontario facility — one freight price, quoted at checkout
Makes
Models
All modelsYears
2016–2016Confirm the exact fit by FCC ID or part number before ordering.
Ships unprogrammed. Like any replacement key, it has to be programmed to the vehicle before it will operate. Programming method, tooling and PIN access vary by vehicle, year and platform, so we don't publish per-vehicle procedures or tool compatibility here — match the part on the codes below and use your usual process for that platform. Not sure? Email the trade desk with the VIN or year/make/model before you order.
If it won't program on the listed vehicle, we refund it and pay the return freight. Two conditions only: the vehicle matches this listing, and the part comes back in resaleable condition — a blade cut only to turn the ignition for the programming attempt doesn't void it. Reply with the vehicle, the tool you used and the error, and we send the return label. Read the guarantee.
Specifications
- Brand
- KEYDIY
- Type
- Remote Flip Key
- Chip / transponder
- ID46
- Frequency
- 500 MHz
- Buttons
- 4
- SKU
The KEYDIY B21-4 Universal Flip Remote is designed for professional locksmiths and auto key specialists. With a spring-loaded flip design and durable shell, it’s a reliable replacement solution for a wide range of vehicles when paired with KEYDIY programming tools. Knife-style 4-button flip remote (lock / unlock / trunk / panic) Dual-frequency: 315 MHz & 433 MHz in one remote Transponder inserts without disassembly — accepts small glass & carbon transponders Flip key blade not included (sold separately) Requires CR2032 battery (sold separately) — blades, batteries & transponders sold separately B-Series: These are universal remote keys with different physical appearances but the same core functions. They are used for replacing car, flip, and garage remotes and their frequency can be adjusted for various models.
Best-Price Guarantee
Found it cheaper? We'll match it.
See the same in-stock part advertised for less by another Canadian or U.S. trade supplier? Send us the listing before you order and we'll match the price — we'd rather earn the reorder than lose it over a dollar.
- Same item, in stock, from a verified trade supplier
- Current advertised price — send the link or a screenshot
- Excludes clearance, liquidation, auction and obvious pricing errors
How to verify this remote flip key fits
- Confirm the frequency is 500 MHz — remotes on a different frequency are not interchangeable even when the shell looks identical.
- The transponder chip is ID46.
- Count the buttons: this remote flip key has 4.
If it doesn't program, it's on us
Every listing carries its FCC ID, part number and cross-references, so you can match the part in your hand before you order — and the trade desk will confirm it with you if you're not sure. If a key or remote you bought for the vehicle we listed it against still won't program, tell us within 30 days of delivery: we refund it and we pay the return freight. Two conditions, both fair — the vehicle matches the listing, and the part comes back in resaleable condition.
Confirm the exact part by FCC ID / part number / cross-reference
Won't program on the listed vehicle? We refund it and pay the return freight — 30 days from delivery
30-day hassle-free trade returns
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