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Extreme Sealing Technology (EST) Motor Only Gasket Set - C9891

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Extreme Sealing Technology (EST) Motor Only Gasket Set - C9891

MSRP: $141.95

Price: $119.88 16% off!
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Cometic Extreme Sealing Technology (EST) Motor Only Gasket Set - C9891
  • 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

  • Included Items:
    (2) Base gaskets
    (4) Engine case gaskets
    (2) Race style exhaust gaskets
    (2) Head gaskets
    (1) Pump body oil seal
    (1) Cam cover seal
    (1) Sprocket shaft oil seal
    (7) Cover/overflow oil seal
    (1) Starter motor shaft oil seal
    (1) Inner chain housing seal
    (1) Shifter shaft oil seal
    (1) Trans. to starter oil seal
    (1) Starter shaft oil seal
    (1) Inner primary cover oil seal
    (2) Umbrella valve rocker cover seal
    (14) Assorted o-rings
    (4) Viton o-rings
    (4) Valve stem seals
    (8) Vulcanized stud washers
    (8) Copper washers
    (2) Rocker box gaskets
    (2) Oil pump/pan gaskets
    (2) Inner rocker seals
    (2) Upper rocker box seals
    (2) Lower rocker box seals
    (2) Intake manifold gasket seals
    (1) Carb seal o-ring
    (2) Carb gaskets
    (2) Intake reed gaskets
Mfg #: C9891
Part #: 263396
Type Full Engine Gasket Kit
Type Motor Gasket
Units Set
Weight 1.68 lbs
Alternate/OEM Part Number(s):
WARNING: Cancer and Reproductive Harm -
Resources & Manuals
Fitment for Cometic Extreme Sealing Technology (EST) Motor Only Gasket Set - C9891

Part 263396 fits the following machines


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