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Sierra 18-99121 Intake Manifold Gasket Yamaha Outboard Replacement

Manufacturer

Picture for manufacturer Sierra

Part Number

18-99121
13 reviews
Sale Price

$8.63

1 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-99121 is an aftermarket replacement intake manifold gasket designed to meet or exceed OEM specifications for compatible Yamaha outboard engines. This gasket serves as a direct replacement for Yamaha OEM part number 6G8-13646-A0, ensuring a reliable, leak-free seal between the intake manifold and the engine block.

Key Features:

  • Direct OEM replacement for Yamaha part number 6G8-13646-A0
  • Engineered to Sierra's marine-grade quality standards for durability in harsh marine environments
  • Precision die-cut construction for accurate fitment and consistent sealing performance
  • Resists heat, fuel, and oil exposure common in outboard engine applications
  • Manufactured by Sierra International, a trusted name in aftermarket marine parts

Sierra International has been a leading supplier of marine replacement parts for decades, producing components that match OEM form, fit, and function. The 18-99121 intake gasket is an ideal choice for technicians and boat owners performing intake manifold service or top-end engine rebuilds on compatible Yamaha outboard motors.

Product came just three days after I ordered it! Great product at a great price. I would definitely order from them again!

easy , good price, instant 20% discount freight, hopefully will fit my 1985 chevy el camino v6 4.3 liter and delivered on time. thank you

Easy shopping and fast checkout, but this isn't the part I needed...

great price

great selection at reasonable price.

Thanks

So far its been fast and easy. I only hope the box comes undamaged. It looks like a nice box. Arrived with a little cardboard damage from UPS. The toolbox had some minor dents that I successfully pounded out. Was no fault of yours. Thanks.

Thank you.

Very competive prices, even with shipping costs. Looking forward to using Autoplicity again in the near future.

best price i found online

thanks

I ordered the product and it was shipped very quickly and arrived safe and sound. I am very pleased with the transaction. Thanks!

Item arrived promptly (4 days after order), price was good and item was as described.

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