GM B120 B121 Transponder Key Circle Plus ID46 | B120-PT
Key Information
Vehicle Compatibility
Technician Data
GM B120 B121 Transponder Key Circle Plus ID46 | B120-PT
New aftermarket transponder key. Match blade/keyway, transponder family and exact vehicle before cutting or programming.
Specifications
| Product Type | Transponder Key |
| Condition | New Aftermarket |
| Chip | Circle Plus ID46 |
| Blade / Keyway | B120 B121 |
| OE / Part References | B120-PT |
| Test Key | TP00OP-11.P5 |
| Ilco | B120-PT |
| Lishi Tool | Original Lishi HU100+ (10-cut) |
| Code Series | 1–22185; Z0001–Z6000 (application-dependent) |
Vehicle Compatibility — USA Market
- 2015–2024 Chevrolet Express
- 2015–2024 GMC Savana
For matching B120-PT / ID46 keyed-ignition applications. B121/Astra applications are not confirmed by the B120-PT entries and are excluded.
Reference: Ilco 2025 Auto/Truck Key Blank Reference, B120-PT, pp. 32, 62. Verify the original key, ignition type and transponder before cutting or programming.
Cutting & Programming
- Key must be cut to the vehicle.
- Immobilizer programming requires compatible equipment or the applicable vehicle procedure.
- Confirm exact Year / Make / Model, blade/keyway and chip family before service.
Frequently Asked Questions
Who is US Locksmith & Supply?
An automotive locksmith supply company providing keys, remotes, programming equipment, key-cutting solutions, locksmith tools, locks, and accessories for professional customers.
Who can purchase from US Locksmith & Supply?
Our products are intended primarily for professional locksmiths, automotive technicians, dealerships, security professionals, and other qualified businesses.
Do you offer dealer pricing?
Yes. Professional customers can register for a dealer account to access the benefits and pricing available through our wholesale program.
What products do you carry?
Automotive keys, remotes, smart keys, transponder keys, programming devices, diagnostic equipment, key-cutting machines, locksmith tools, locks, and accessories.
What brands do you carry?
Autel, Xhorse, KEYDIY, Lishi, ILCO, JMA, Keyline, OBDSTAR, Lonsdor, XTOOL, STRATTEC, and Advanced Diagnostics, with availability varying by product.
How can I find the right product for my vehicle?
Use our Vehicle Search to select the Year, Make, and Model of the vehicle and browse compatible products.
Do you provide customer support?
Yes. Our team is available to assist with product questions, ordering, account-related questions, and other customer support needs.