FCC ID KR5V21
KR5V21 is the FCC ID printed on the label under the fob’s battery cover — on this code we verify fit for Acura (2018–2021). 1 aftermarket replacement is published, all in stock. Everything below — vehicles, original part-number cross-references, chip and frequency — comes straight from the live catalog. Wholesale for the trade; pricing unlocks with an approved account.
Cross-reference data for KR5V21
Compatible vehicles
- Acura — ILX, ILX A-Spec, ILX Base Package, ILX Premium, ILX Premium A-Spec, ILX Tech, TLX, TLX 24 Base, TLX 24Tech L4, TLX Base, TLX Standard, TLX Tech, TLX Tech+ AA Spec, TLX Technology Package
Model years 2018–2021.
Cross-references (original part numbers)
The original part numbers our aftermarket KR5V21 replacement matches against.
- 72147-TZ3-A21
Electronics
- Transponder chip
- NCF29** / HITAG 3 / 47 CHIP
- Frequency
- 434 MHz
- Key types
- Smart Key
Quick answers — FCC ID KR5V21
What vehicles use FCC ID KR5V21?
FCC ID KR5V21 is verified in our catalog for Acura (ILX, ILX A-Spec, ILX Base Package, ILX Premium, ILX Premium A-Spec, ILX Tech, TLX, TLX 24 Base, TLX 24Tech L4, TLX Base, TLX Standard, TLX Tech, TLX Tech+ AA Spec, TLX Technology Package), model years 2018–2021.
What chip and frequency does KR5V21 use?
KR5V21 keys use the NCF29** / HITAG 3 / 47 CHIP transponder chip and operate at 434 MHz.
Is there a replacement for KR5V21?
Yes — Car Key Source stocks 1 aftermarket smart key replacement for FCC ID KR5V21, sold wholesale to the trade with US & Canada same-day dispatch.
What original part numbers cross-reference to KR5V21?
FCC ID KR5V21 cross-references to original part number 72147-TZ3-A21 — our replacements are matched against these originals.
Aftermarket replacements for KR5V21 in stock
2018-2021 Acura / 4-Button Smart Key / PN: 72147-TZ3-A21 / KR5V2X (Aftermarket)
More Acura FCC IDs we stock
Need help confirming fit for KR5V21?
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