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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Serpentine belt for my 91 5.0

  • Thread starter Thread starter burnout50
  • Start date Start date Nov 5, 2006

burnout50

New Member
May 23, 2006
2
0
2
Rio Vista
Nov 5, 2006
#1
  • Nov 5, 2006
  • #1
Replacing my belt on my 91 5.0 with A/C. There's two part numbers in the belt catalogs. One says (dealer air) #875K6 the other one says (factory air) #905K6. Which one for my car? How can you tell between dealer air and factory air?
 

Roland69

Sergeant Tangnet
Sep 17, 2005
2,867
3
58
Port Elgin, Ontario
Nov 5, 2006
#2
  • Nov 5, 2006
  • #2
I would get both and take the one that dosn't fit back.....But I would guess you have factory air because not many people added air to thier mustang they usually took the system out
 

burnout50

New Member
May 23, 2006
2
0
2
Rio Vista
Nov 6, 2006
#3
  • Nov 6, 2006
  • #3
Cool, I'll try the factory air part#
 

stangbear427

Active Member
Nov 11, 2002
2,401
1
49
New England
Nov 6, 2006
#4
  • Nov 6, 2006
  • #4
IIRC, the part#'s are measurements. One belt is 87.5", the other is 90.5". Take off the belt and measure it, and buy the closest one.
 

bryce93lx

Member
Jan 20, 2006
88
1
19
Luke AFB AZ
Nov 6, 2006
#5
  • Nov 6, 2006
  • #5
i think it has to be the 90.0 becuase i run a 87" with my smog delete
 
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