Raw Water Pump Impeller Service Kit – Fits OMC Stringer Sterndrive 1962–1985 (Replaces 983218, 0983218)

Raw Water Pump Impeller Service Kit 62 65 - Fits OMC Stringer Sterndrive (Replaces 983218, 0983218)

This raw water pump impeller service kit is designed to fit OMC Stringer 400 and 800 sterndrive outdrives manufactured between 1962 and 1985, excluding Cobra models. It provides the essential components required for maintaining the raw water pump in these legacy marine outdrives.

The kit serves as a direct replacement for OEM part numbers 983218 and 0983218, and is compatible with aftermarket cross references including Sierra 18-3286, GLM 12190, and Mallory 9-45284.

• Includes impeller, wear plate, and seal O-rings for pump maintenance
• Compatible with OMC Stringer 400 and 800 outdrives (except Cobra)
• Designed for direct, drop-in replacement installation

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• 1 x Impeller (OMC 379475)
• 1 x Wear Plate
• Seal O-rings

Note: This kit does NOT include the pump housing. For the complete kit with housing, refer to Sierra 18-3386 or equivalent.

Installation Guide

1. Remove the old impeller and wear plate from the raw water pump housing carefully to avoid damage.
2. Clean the inside of the pump housing to remove debris and old seal remnants.
3. Inspect the pump housing for any cracks or wear before proceeding.
4. Install the new wear plate securely in the pump housing.
5. Lubricate the new impeller with a light coat of water-resistant lubricant or fresh water.
6. Insert the impeller into the pump housing, ensuring the blades are correctly oriented.
7. Replace the seal O-rings in their designated positions to maintain proper sealing.
8. Reassemble the pump housing and fasten all hardware to manufacturer specifications.
9. Test the pump operation before reinstalling the sterndrive on the boat.
10. Check for leaks during the initial run and re-tighten if necessary.
11. Refer to your marine engine service manual for torque settings and any model-specific instructions.

Troubleshooting & FAQ

• How do I confirm this fits my engine?
  Check the compatible engine models table and verify your OEM part number and model year range. This kit fits OMC Stringer 400/800 sterndrives from 1962-1985, excluding Cobra models.
• What are the differences between this aftermarket kit and the OEM part?
  This is an aftermarket replacement built to OEM specifications using comparable-grade materials, produced in an ISO9002-certified facility with batch inspections for quality.
• How often should I replace the impeller and seals?
  Regular inspection annually or every 100 hours of engine use is recommended; replace the impeller and seals whenever wear or damage is detected to avoid pump failure.
• What are common signs of water pump failure?
  Reduced water flow, overheating engine, or visible damage on the impeller blades are indicators that replacement is needed.
• OEM vs. Aftermarket?
  This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
• How fast do you ship and how much does it cost?
  We offer fast global shipping 7 typically 5 615 days worldwide 7 and standard shipping is free. Expedited options are available at checkout depending on your location.
• What is your warranty and return policy?
  This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist 7 even if your model is listed 7 do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5 615 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.