• Fast shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Flash Sale now on!

FLASHSALE26

98-8M0135821 Water Pump Kit with Housing for Mercury Mariner 10, 15, 20 HP Outboards | SeaSierra

Regular price $999.00

Worry-free returns

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: 988M0135821
  • Brand & Manufacturer: SeaSierra
  • Category: Water Pump Repair Kit
  • Part Type: Water Pump Impeller Kit

Compatibility

This kit is compatible with the following Mercury Mariner Outboard models and components:

Engines:

  • 10 EFI 2 Cylinder 4 Stroke
  • 15 EFI 2 Cylinder 4 Stroke
  • 15 EFI SeaPro 2 Cylinder 4 Stroke
  • 20 EFI 2 Cylinder 4 Stroke

Gear Housing (Driveshaft):

  • 20HP 0R833820 & Up - Cat.# 90-8M0125267 - EFI Gear Housing (Driveshaft)
  • 10HP 0R833820 & Up Gear Housing (Driveshaft)
  • 15HP 0R833820 & Up - Cat.# 90-8M0125267 - EFI SEAPRO 2CYL Gear Housing (Driveshaft)

Gear Housing (Propeller Shaft):

  • 15HP 0R833820 & Up - Cat.# 90-8M0125267 - EFI SEAPRO 2CYL Gear Housing (Propeller Shaft)
  • 20HP 0R833820 & Up - Cat.# 90-8M0125267 - EFI Gear Housing (Propeller Shaft)
  • 10HP 0R833820 & Up Gear Housing (Propeller Shaft)

Kit Components

The package includes the following items:

  1. Water Pump Impeller (Part Number: 98-8M0135821)

Part Numbers and Replacements

  • Replaces OEM Part Numbers: 98-8M0135821

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.