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COMETIC Base Gasket - 3-5/8" C9989

Part Number: 09340784
COMETIC
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SKU:
09340784
MPN:
C9989
Condition:
New
Availability:
Ships Same Business Day
Weight:
0.09 LBS
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MSRP: $33.55
Now: $32.00
Was: $33.55
— You save $1.55

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Description

A failing head gasket compromises combustion sealing, kills power output, and invites coolant leaks that can wreck your engine. The COMETIC Base Gasket C9989 uses multi-layer steel construction with load-control embossments to distribute clamping force evenly, minimizing bore distortion and maximizing ring seal integrity—critical for forced induction and high-boost applications. Built to U.S. specifications and Viton-coated for reliability across extreme temperatures and harsh sealing environments, this gasket delivers the durability and performance precision racers and serious builders demand.

  • MLS (Multi-Layer Steel) construction
  • Viton coating, both sides
  • Load Control Embossments (LCE)
  • 3-5/8" bore diameter
  • Reduced bore distortion
  • Improved ring seal
  • Enhanced power retention
  • Made in U.S.A.
  • Multiple sealing environment rated
  • OEM part number C9989
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Specs

BORE SIZE IMPERIAL:
3.625'
MATERIAL:
RUBBER
TYPE:
CYLINDER BASE
UNITS:
PAIR
MATERIAL:
STEEL
STYLE:
STANDARD
THICKNESS:
STOCK
THICKNESS METRIC:
0.51 MM
PRODUCT NAME:
GASKET
RIDING STYLE:
STREET
THICKNESS IMPERIAL:
0,020'
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Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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