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1984-1990 Corvette C4 Front Air Dam Spoiler Z51

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Item ID: 601-105
GM Part #: 14089634
14089635
14089636
Availability: In Stock - Ships today if ordered by 3 PM CT
Fits Years:
  • 1984-1990
$65.99
Sale Price! was $69.99
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  • Description
  • Alternate Products

1984-1990 C4 Front Air Dam Spoiler Z51 - OEM Number(s) (14089634,14089635,14089636)

Enhance your C4’s aggression and cooling performance with the exact-fit Z51 Front Air Dam Spoiler—engineered to GM specs for 1984–1990 Corvettes.

By channeling air into the radiator and braking ducts, this deeper “Z51”-style spoiler not only gives your Corvette that purposeful stance but also reduces front-end lift at speed, improving high-velocity stability and brake cooling. It’s the same design offered on GM’s Performance Handling Package, so you know it works as hard as it looks.

Key Features & Specs

  • GM Original Part Numbers:

  • Center section 14089634
  • Left section: 14089635
  • Right section: 14089636
  • Material & Finish: Durable ABS plastic, factory-style black textured finish—ready to install, paint, or wrap

  • Height (deep Z51 version): 4.25″ above stock line

  • Fitment: Direct replacement for all 1984–1990 Corvette C4 (includes Z51, base, B4P)

Why You Need It
Over time, your stock front spoiler can crack, warp, or simply wear out—compromising airflow and that sleek C4 profile. Replacing it with this genuine-spec Z51 unit instantly restores proper under-hood cooling, trims lift at high speeds, and gives your Corvette the aggressive front-end look it was born to have.

Ready to transform your C4?
Click “Add to Cart” now and bolt on the same front-spoiler technology GM designed for its Performance Handling Package. Don’t settle for stock—command the road with Z51 airflow performance and style.

Also known under these part numbers: (For reference only)

  • 14089634
  • 14089635
  • 14089636
  • 201007
  • 25-111978-1
  • 334579
  • 686420015222
  • E10664
  • ET-409
  • X2580
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