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18-2663 Lower Unit Seal Kit for 100-245 Stringer Units | SeaSierra

Regular price $40.00

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Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.


If the return is due to our error or a defective item, we’ll make it right.


Please contact us before returning any item.

Delivery and Shipping

Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


International delivery times may vary due to customs processing.


Tracking information will be provided once your order ships.

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

  • SKU: 182663
  • Item Weight: 0.32 ounces
  • Product Dimensions: 0.39 x 0.39 x 0.39 inches
  • Manufacturer Part Number: 18-2663
  • OEM Part Number: OMC 981797
  • Category: Drive Parts / Seal Kits, Oil Seals
  • Compatibility: For 100-245 Stringer Units (1968-1977)
  • Package Dimensions:
    • Weight: 0.275
    • Height: 1.65
    • Depth: 7.9
    • Width: 10.9

Kit Components

The package includes the following items suitable for 100-245 Stringer Units (1968-1977):

  1. Lower Unit Seal Kit (Part Number: 18-2663)
  2. Grommet, Water Tube (Part Number: 981797)
  3. Swivel Bearing Gasket (Part Number: 18-2851)
  4. Drain/Fill Plug Washer (Priced Per Pkg of 5) (Part Number: 18-4248-9)
  5. O-Ring (Priced Per Pkg of 5) (Part Number: 18-7167-9)
  6. O-Ring (Part Number: 18-7120)
  7. O-Ring (Part Number: 18-7135)
  8. O-Ring (Part Number: 18-7129)
  9. Oil Seal (Part Number: 18-2012)
  10. Oil Seal (Part Number: 18-2020)
  11. Oil Seal (Part Number: 18-2058)

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