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1ISO 9001 Certification
 
 
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Flex Fan Spacers and NoseCones
Standard Fan Spacers
  • Extruded aluminum construction
  • Colorful Clamshell Packaging
  • Anodized finishes match fan blades


Nose Cone Kits
  • One-piece billet
  • Covers exposed bolts for custom look
  • Left-hand threads for safety


Selecting A Fan Spacer

With Fan Shroud (Diagram #1): Measure the distance from the water pump flange to the edge of shroud. Add 3/4" to this measurement for the spacer.

Without Fan Shroud (Diagram #2): Measure the distance from the water pump flange to the radiator core. Subtract 3" from this measurement.

Warning: Fan should have a minimum clearance of 3/4" from radiator, belt, hose, or pulley.

A
Length
B
Pilot Dia.
C
Pilot Dia.
Bolts Spacer Kits NoseCone Kits
Clear Red Blue Clear Red Blue
1/2" 5/8" 5/8" 5/16-18/24" 31500 31600 31700 32500 32600 32700
1" 5/8" 5/8" 5/16-18/24" 31510 31610 31710 32510 32610 32710
1 1/2" 5/8" 5/8" 5/16-18/24" 31515 31615 31715 n/a n/a n/a
1 3/4" 5/8" 5/8" 5/16-18/24" n/a n/a n/a n/a n/a n/a
2" 5/8" 5/8" 5/16-18/24" 31520 31620 31720 32520 32620 32720
2" 5/8" 5/8" 8mm x 1.25 31521 n/a n/a n/a n/a n/a
2" 5/8" 5/8" 6mm x 1.00 31522 n/a n/a n/a n/a n/a
2" 5/8" 3/4" 8mm x 1.25 31531 n/a n/a n/a n/a n/a
2" 5/8" 3/4" 5/16-18/24 31530 31630 31730 32530 32630 32730
2 1/4" 5/8" 5/8" 5/16-18/24 31540 31640 31740 32540 32640 32740
2 1/4" 5/8" 1.180 8mm x 1.25 31521 n/a n/a n/a n/a n/a
2 1/4" 5/8" 5/8"-3/4" 5/16-18/24 31545 n/a n/a n/a n/a n/a
2 1/4" 5/8" 5/8"-3/4" 8mm x 1.25 31546 n/a n/a n/a n/a n/a
3 1/2" 5/8" 1.180 8mm x 1.25 31551 n/a n/a n/a n/a n/a
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