OEM Control Arms : revisions or supersessions

[razziel24]

Hello, I need to replace both control arms for my 2019 Edge ST, and I came across some vendors online offering the part number but with different revisions:  (at different prices)

 

F2GZ-3078-A,   (n/a)

F2GZ-3078-B,   (n/a)

F2GZ-3078-C,  ($226)

F2GZ-3078-H,  ($198)

F2GZ-3078-K  ($253)

 

According to Gemini:

 

Here's a breakdown:

• F2GZ-3078-K is generally the latest or current part number that supersedes the others. .
• The suffixes (A, B, C, H, K) indicate engineering revisions or updates to the part. When a manufacturer makes a minor change or improvement to a component, they often issue a new part number with a different suffix. These changes can be:
  • Material improvements: A stronger or lighter material might be used.
  • Design tweaks: Minor changes to the shape or dimensions for better fitment, durability, or performance.
  • Manufacturing process changes: Updates to how the part is produced.
  • Supplier changes: A new supplier might necessitate a slight change in the part number.
  • Inclusion of components: Sometimes a new part number might indicate that additional small components (like a specific bolt or bushing) are now included with the main assembly.

Without access to Ford's internal engineering change notices or technical service bulletins specifically detailing each incremental change, it's impossible to pinpoint the exact differences (e.g., "in 'H' we increased the bushing durometer by X%, and in 'K' we added a different coating to the ball joint pin").

 

Does anyone know the specific details of the changes Ford made to this revisions ?

Would it be wise to buy the rev H, taking in consideration the price difference ?

Thank you

 

 

[Wubster100]

The revision numbers may also indicate differences in the features of parts. As we see from this example, the audio control module KT4T-19C107-CE does not have active noise cancellation, while KT4T-19C107-DE does have active noise cancellation.

 

https://www.fordedgeforum.com/topic/33925-active-noise-control-anc-retrofit-2019-titanium/

 

The best way to verify if a part will fit is to enter your vin number at parts.ford.com.

[Wubster100]

I have ordered a superseded part number for my rear wheel speed sensors because they were cheaper, and they are fine. The difficult part is figuring out what changes were made with the part revisions.

[razziel24]

thanks for your reply, yes I checked with Ford OEM parts using my vin, and it says its compatible with all revisions, but I couldnt manage to find the detailed info regarding the changes made to each revision

[omar302]

As @Wubster100 stated above, sometimes different letters indicate different features or specs, also like different spring or shock rates. However, for the part numbers you listed, the are superceding numbers with the K version being the latest. 

 

See this listing where it is clearly stating that the K version replaces the older ones. If you enter any of the older numbers it will automatically take offer you the K version. 

 

So all will work, what changed between versions will probably remain a mystery to customers. Generally the latest is the best. 

Edited 16 hours ago by omar302