Heating and Cooling› Water Pumps

SIERRAMARINE

WATER PUMP KIT

$120.65

SKU: S08C 18-3386

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The SeaSierra Water Pump Impeller Kit is a direct replacement for OMC Stringer 400 and 800 series stern drives from 1962-1985. It includes the water pump housing, impeller, wear plate, and necessary O-rings and seals. Constructed with durable, marine-grade materials, this kit meets or exceeds OEM specifications. It is a direct interchange for OMC part number 983218 and Sierra part number 18-3386, ensuring broad compatibility for repairs and maintenance.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSIERRAMARINE
Part NumberS08C 18-3386

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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