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Extreme Sealing Technology (EST) Complete Gasket Set - C9920

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Extreme Sealing Technology (EST) Complete Gasket Set - C9920

MSRP: $161.95

Price: $120.88 25% off!
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Cometic Extreme Sealing Technology (EST) Complete Gasket Set - C9920
  • EST kits ensure critical seal and superior durability that meets and exceed OE specifications
  • MLS (multi-layer-steel) head gaskets are ideal for any combination of head and cylinder materials, comprised of two embossed viton coated stainless steel outer layers and variable stainless center layer
  • The variable center layer allows us to create multiple gasket thickness options, no re-torque is required after initial torque set
  • Rubber coated single layer steel base gaskets are viton rubber coated with a steel core
  • AFM material engine cover gaskets are made for a chemically blown compounded nitrile synthetic rubber that is bonded to an aluminum core.
  • AFM has a temperature resistance of over 250 degrees F and an 85 percent recovery while maintaining a strong torque retention, they also install dry and do not require a re-torque
  • Viton valve stem seals are made from hi-temperature Flouroviton with Teflon to prolong valve stem life and have a spring on the wiper to maintain a positive seal
  • Race style exhaust gasket that will not fray into the port
  • Copper washers and Viton o-rings are used to seal drain plugs and engine covers with stock o-ring seals
  • Contains all necessary gaskets for application


  • For models listed with 1550 big bore kit, .040 head gasket


  • Included Items:
    (1) Folded Box 24-1/4 x 14 x 1-1/4
    (2) Carb gaskets
    (14) Engine case gaskets
    (2) Evo exhaust gaskets
    (2) Head gaskets
    (1) Crankcase oil seals
    (2) Intake manifold gasket seals
    (1) Carb seal o-ring
    (1) Silicone sensor
    (1) Derby cover o-ring
    (2) Base o-rings
    (1) Inner chain housing seal
    (1) Shifter shaft oil seal
    (1) Starter motor shaft oil seal
    (2) Umbrella valve rocker covers
    (12) Brown viton o-rings
    (27) Assorted o-rings
    (4) Valve stem seals
    (4) Rocker box gaskets
    (2) Engine case washers
Specifications
Mfg #: C9920
Part #: 263474
Type Complete Gasket
Type Full Engine Gasket Kit
Units Set
Weight 1.81 lbs
Alternate/OEM Part Number(s):
09340807
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Resources & Manuals
Fitment for Cometic Extreme Sealing Technology (EST) Complete Gasket Set - C9920

Part 263474 fits the following machines

Harley-Davidson

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