The CISCO_PRODUCTS-MIB incorrect description of product. The OIDS for 2818 and 2819 list them as Cisco ASR 1000 series routers, but they are Cisco Catalyst 8500 Edge Platforms. Unless the C8500 are really just re-masked ASR 1000 series routers, this is an inaccurate description for the product in the MIB file.
From Cisco's cisco-mibs/CISCO-PRODUCTS-MIB.my at main · cisco/cisco-mibs · GitHub
ciscoC850012X4QC OBJECT IDENTIFIER ::= { ciscoProducts 2818 } -- Cisco Aggregation Services Router 1000 Series, C8500-12X4QC Chassis
ciscoC850012X OBJECT IDENTIFIER ::= { ciscoProducts 2819 } -- Cisco Aggregation Services Router 1000 Series, C8500-12X Chassis