Good info straight from GM.
Reference Number: GCUS-9-11766
PF66 (GM #55495105) Oil Filter Shortage and Replacement Parts Effective 8/20/2021
Due to increase in demand in the past 6 months, the PF66 oil filter (GM# 55495105) is currently backordered.
In the immediate interim, GM Engineering has recommended the ACDelco UPF66R as the preferred approved filter.
While not equivalent with the OE filter, considering the potential impact on GM vehicle owner satisfaction, we are allowing the usage of the following aftermarket filters for a limited time until a solution is identified. Additional bulletins will be distributed advising of sufficient PF66 availability and ending the competitive aftermarket filter warranty. We will also continue to warranty the engines (subject to remaining warranty) that receive one of the following aftermarket filters:
Effective Date
8/20/2021
Additional information
An application guide for the PF66 oil filter has been attached.
This message link is only valid through the expiry date.
Expires:Aug 20, 2022 23:00 ET
Reference Number: GCUS-9-11766
PF66 (GM #55495105) Oil Filter Shortage and Replacement Parts Effective 8/20/2021
Due to increase in demand in the past 6 months, the PF66 oil filter (GM# 55495105) is currently backordered.
In the immediate interim, GM Engineering has recommended the ACDelco UPF66R as the preferred approved filter.
While not equivalent with the OE filter, considering the potential impact on GM vehicle owner satisfaction, we are allowing the usage of the following aftermarket filters for a limited time until a solution is identified. Additional bulletins will be distributed advising of sufficient PF66 availability and ending the competitive aftermarket filter warranty. We will also continue to warranty the engines (subject to remaining warranty) that receive one of the following aftermarket filters:
- Mighty – M9510
- Valvoline – VO202
- Parts Master – WL610351
- Luber-finer – PH10066
- Champ – PH10066
- Wix – WL10351
- NapaGold – 100351
- PurolatorTech – TL11241
- Purolator – L11424
Effective Date
8/20/2021
Additional information
An application guide for the PF66 oil filter has been attached.
This message link is only valid through the expiry date.
Expires:Aug 20, 2022 23:00 ET