What is B2048620?
B2048620 appears in industry and seller listings as a 6T40E/6T45E-related identifier, but the targeted audit did not locate a GM/ACDelco/EPC record establishing B2048620 as a GM OE number. That bounded provenance result is E613.
What the audit found
Multiple industry listings associate B2048620 with a valve-body plunger and the 6T40E/6T45E family. Repetition across listings is useful market context: the identifier is being used commercially. But numbering-system origin is a separate question.
In the exact-match audit, E613 did not locate B2048620 in GM public parts, ACDelco, or a readable EPC numbering context. For that reason OEProof no longer places this identifier in the catalog OE field; it remains visible only as a supplier/industry identifier under UNDER VERIFICATION.
What this does not prove
- We cannot write
B2048620 = GM OE. - Seller listings cannot create vehicle-level CONFIRMED fitment.
- “No official exact match was located” cannot be strengthened into “an official number definitely does not exist.”
The same distinction is used in checking GM-style 8-digit numbers, GM Part # vs ACDelco Part #, and why one supplier catalogue cannot verify a part number.
How to use B2048620 in an inquiry
You can send it as a starting identifier, but not as an already verified OE number. Technical mapping needs vehicle, year, engine, RPO/transmission code, market, and the source catalog. Those details can be included in the RFQ.
FAQ
- Is B2048620 a GM OE number?
- That status is not confirmed; E613 records the provenance limit.
- Why does the identifier appear in multiple seller listings?
- That supports commercial use of the identifier, not its numbering-system origin.
- Does the missing GM exact match prove the identifier is fake?
- No. Failure to locate a record is not proof of non-existence.
- What should I send with an RFQ?
- B2048620 plus VIN/RPO, transmission, market, and the source listing URL.