Water Pump Repair Kit – Fits OMC Stringer Outdrives 1969-1985 (Replaces 983218, 0983218)
Water Pump Repair Kit – Fits OMC Stringer Outdrives 1969-1985 (Replaces 983218, 0983218) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Repair Kit – Fits OMC Stringer Outdrives 1969-1985 (Repl...
Water Pump Repair Kit – Fits OMC Stringer Outdrives 1969-1985 (Replaces 983218, 0983218) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Repair Kit – Fits OMC Stringer Outdrives 1969-1985 is designed for OMC Stringer stern drives, including electric and mechanical shift models. It provides a complete solution to rebuild the raw water pump assembly, but specifically excludes compatibility with OMC Cobra models.
This kit serves as a direct replacement for OEM part numbers OMC 983218/0983218, 778061/0778061, and aftermarket equivalents Sierra 18-3386, Mallory 9-45286, GLM 12190, SEI Marine 96-105-09K, and OBR Red Rhino OS-152.
- Engineered as a direct replacement for straightforward installation.
- Includes the housing, impeller, plate, and seals for a complete overhaul.
- Built for use in marine saltwater and freshwater environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| OMC | 983218 / 0983218 |
| OMC | 778061 / 0778061 |
| Sierra | 18-3386 |
| Mallory | 9-45286 |
| GLM | 12190 |
| SEI Marine | 96-105-09K |
| OBR Red Rhino | OS-152 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is designed for most OMC Stringer, Electric Shift, and Mechanical Shift drives. Note that while some sources suggest compatibility from 1962–1986, guaranteed fitment is for 1969–1985. This kit explicitly excludes all OMC Cobra models.
| Brand | Model | Years | OEM Part No. | Notes |
|---|---|---|---|---|
| OMC | Stringer Outdrive | 1962–1985 | 983218 | EXCEPT COBRA models |
| OMC | Electric Shift Drives | 1964–1986 | 983218 | EXCEPT COBRA models |
| OMC | Mechanical Shift Drives | 1964–1986 | 983218 | EXCEPT COBRA models |
Technical Specs
- Product Type
- Water Pump Repair Kit with Housing
- Installation
- Direct replacement
- Fitting Type
- OMC Stringer drive standard mounting
- Other Technical Attributes
- For OMC Stringer outdrives only; not compatible with OMC Cobra models
What’s in the Box
- 1 x Impeller Housing (983298)
- 1 x Impeller (379475)
- 1 x Wear Plate (313176)
- 1 x Rubber Seal (907774)
- 1 x O-Ring (310584)
- 1 x O-Ring (314491)
- 1 x O-Ring (310585/310967)
Installation Notes
- Disconnect the battery and ensure the engine is cool.
- Close the water inlet seacock and drain the existing pump housing.
- Carefully remove the old water pump assembly from the outdrive.
- Thoroughly clean the mounting surface, removing any old gasket material or sealant.
- Assemble the new kit components according to your service manual's diagram. Lightly lubricate seals and O-rings with marine grease.
- Install the new pump assembly, ensuring it is correctly aligned.
- Tighten all mounting bolts to the manufacturer's specified torque in a crisscross pattern.
- Reconnect all hoses and open the water inlet seacock.
- Reconnect the battery, start the engine, and immediately check for water leaks and proper water flow from the tell-tale outlet.
Troubleshooting & FAQ
How do I know if this kit fits my OMC outdrive?
This kit fits most OMC Stringer, Electric Shift, and Mechanical Shift drives from 1969 to 1985. It is NOT compatible with any OMC Cobra models. Always compare the part numbers and visual appearance of your old pump with our product images to confirm fitment.
What are the signs of a failing water pump?
Common symptoms include engine overheating at idle or low speeds, a weak or inconsistent stream of water from the tell-tale outlet, and a visibly damaged, brittle, or melted impeller upon inspection.
How often should the water pump impeller be replaced?
For preventative maintenance, it is recommended to inspect the impeller annually and replace it every 1-2 years. Frequency depends on usage hours and operating conditions (e.g., saltwater vs. freshwater, high-sediment areas).
Is the housing included in this kit?
Yes, this is a complete repair kit that includes the main impeller housing, impeller, wear plate, seals, and all necessary O-rings for a full replacement.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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