Water Pump Repair Kit with Housing – Fits OMC Stringer Drives 120-260HP (Replaces OMC 983218, 981802)
Water Pump Repair Kit with Housing – Fits OMC Stringer Drives 120-260HP (Replaces OMC 983218, 981802) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Water Pump Repair Kit with Housing – Fits OMC Stringer Drives 120-2...
Product Details
This is a complete Water Pump Repair Kit with Housing – Fits OMC Stringer Drives 120-260HP (Replaces 983218, 981802), designed for 400 and 800 series sterndrive units with 4-cylinder, V6, and V8 engines from 1962–1985. The kit provides all the essential components needed to restore the performance of your engine's cooling system.
It serves as a direct replacement for OMC part numbers 983218, 0983218, 981802, and 778061, along with aftermarket equivalents from Sierra, GLM, Mallory, and others.
- Installs as a direct replacement for OMC Stringer stern drives.
- The housing is built with marine-grade materials that meet or exceed OEM specifications.
- Components are produced in ISO9002 certified factories for reliable quality.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| OMC | 983218 |
| OMC | 0983218 |
| OMC | 981802 |
| OMC | 778061 |
| Sierra | 18-3386 |
| GLM | 12190 |
| Mallory | 9-45286 |
| SEI Marine | 96-105-09K |
| JLM Marine | 46-00017 |
| OBR Red Rhino | OS-152 |
| SOXA Marine | 23KO449 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
OMC Stringer Drives (1962–1985): This kit is designed for OMC Stringer 400 & 800 series units. IMPORTANT: This kit does NOT fit OMC Cobra stern drives.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| OMC | Stringer 400 | 100-140 | 4-Stroke | 1962–1985 | 983218 | Upper gear housing - Stringer mount |
| OMC | Stringer 800 | 170-260 | 4-Stroke | 1962–1985 | 983218 | Upper gear housing - Stringer mount |
| OMC | 2.0-3.0L | 100-140 | 4-Stroke | 1962–1985 | 983218 | 4-cylinder engines |
| OMC | 4.3L | 165 | 4-Stroke | 1962–1985 | 983218 | V6 engines |
| OMC | 5.0-6.2L | 170-260 | 4-Stroke | 1962–1985 | 983218 | V8 engines |
| OMC | 120-140HP | 120-140 | 4-Stroke | 1964–1986 | 983218 | Electric shift drives |
| OMC | 175-190HP | 175-190 | 4-Stroke | 1964–1986 | 983218 | Electric shift drives |
| OMC | 200-260HP | 200-260 | 4-Stroke | 1964–1986 | 983218 | Electric shift drives |
Technical Specs
- Product Type
- Water Pump Repair Kit with Housing
- Installation
- Direct replacement for OMC Stringer stern drives
- Housing Material
- Marine-grade materials meeting OEM specifications
- Housing Color
- Silver/Metallic
- Weight
- 0.71 kg (1.57 lb)
- Fitting Type
- Direct fit to OEM specifications
- Warranty
- 1 year limited warranty (typical for aftermarket parts)
- Other Technical Attributes
- Produced in ISO9002 certified factories (JLM Marine)
What’s in the Box
- 1 x Water Pump Housing (981802)
- 1 x Impeller
- 1 x Driveshaft Seal
- 1 x SS Wear Plate
- 1 x Impeller Key Way
Installation Notes
- Disconnect the negative battery cable before starting work.
- Remove the sterndrive unit from the transom assembly according to your service manual.
- Place the sterndrive on a suitable workbench and separate the upper and lower units.
- Unbolt and remove the old water pump housing assembly from the lower unit.
- Carefully clean all gasket mating surfaces, removing any old sealant or debris.
- Install the new wear plate, seals, and gaskets as provided in the kit.
- Lubricate the new impeller with marine grease and install it into the housing.
- Secure the new water pump housing with the original bolts, tightening them to the manufacturer's specified torque.
- Reassemble the lower and upper units of the sterndrive.
- Reinstall the sterndrive onto the boat, reconnect the battery, and test the engine in the water to verify proper cooling system operation.
Troubleshooting & FAQ
How do I confirm this kit fits my specific engine?
This kit is designed exclusively for OMC Stringer sterndrives made between 1962 and 1985. Please check your model, horsepower, and year against the compatibility table. It is critical to note that this kit does NOT fit OMC Cobra drives.
What are the common signs of a failing water pump impeller?
The most common symptom is engine overheating at idle or low speeds. Other signs include a weak water stream from the tell-tale outlet, an abnormally high engine temperature gauge reading, or finding brittle, cracked, or missing vanes on the old impeller during inspection.
How often should the water pump impeller be replaced?
As a general maintenance rule, it is best practice to inspect the water pump impeller annually and replace it every 1-2 years or every 100-200 hours of operation, whichever comes first. Replacement is especially important if you operate primarily in saltwater or sandy/silty conditions.
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.
Payment & Security
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