My gears are not pink. They're white just like the ones you show from OG. Perhaps they've changed their material or vendor since then. I do know that the ones I received are the same size and tooth count as the mushy ones I pulled off.

__________________
Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

I just noticed something else in your photos you shared. The original MB gear is a 15 tooth. The pink gears are 12 tooth. A 12 tooth gear won't mesh in a gear train designed for a 15 tooth. If those are the gears the customer ordered, they probably ordered the wrong one - their website defaults to a 12 or 16 tooth gear.

__________________
Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)