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FLASHSALE26

Aftermarket Circulation Water Pump for Mercury MerCruiser, Volvo Penta, OMC & Chrysler/Force GM Engines

Regular price $140.80

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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@seasierra.com, and we’ll get back to you within 20–36 hours.

Product Details

This aftermarket Circulation Water Pump is a single replacement pump for selected marine engines using GM inline four- and six-cylinder applications. Company fitment records identify applications for Mercury MerCruiser, Volvo Penta, OMC Cobra, and Chrysler/Force inboard engine systems.

Use the reference numbers and engine conditions below to compare this pump with the component currently installed on your engine. Engine model, year, cylinder configuration, and the existing part number should all be confirmed before ordering.

  • Single circulation water pump; this listing is not a kit.
  • Aftermarket replacement for selected marine cooling-system applications.
  • Reference numbers are provided for identification and cross-reference purposes.

Reference Number Matrix

The following manufacturer and aftermarket references are listed for this product. A reference number alone does not confirm fitment for every engine configuration.

Application or Brand Reference Number
Mercury MerCruiser 8M0113733
Mercury MerCruiser 884727
Mercury MerCruiser 65142A1
Mercury MerCruiser 880817
Mercury MerCruiser 814755
Volvo Penta 3854017
Volvo Penta 3858340
OMC Cobra 984360
OMC Cobra 986779
OMC Cobra 380640
Aftermarket 18-3575; 18-3593
Chrysler/Force applications FI1101079; FI1100785; 65142; F2774666; 52353; 37369; 33957
Aftermarket 9-42605

Engine & Model Compatibility

Keep the engine brand, year range, cylinder configuration, displacement, horsepower, and reference number together when checking compatibility. The confirmed company application details are summarized below.

Brand or Application Years Engine Condition Horsepower Reference Numbers
Mercury MerCruiser stern drive 1963–1998 GM four-cylinder and six-cylinder engines, including GM and MIE applications Not specified 8M0113733, 884727, 65142A1, 880817, 814755
Volvo Penta stern drive 1993–2010 GM inline four-cylinder and six-cylinder water-circulating-pump applications Not specified 3854017, 3858340
OMC Cobra stern drive Various years GM 2.5–3.0L four-cylinder engines 120–140 HP 984360, 986779, 380640
OMC Cobra stern drive Various years GM 3.8L six-cylinder engines 165 HP 984360, 986779, 380640
Chrysler/Force inboard applications Not specified GM four-cylinder and six-cylinder inboard engines Not specified FI1101079, FI1100785, 65142, F2774666, 52353, 37369, 33957

Technical Specifications

Product Type
Circulation water pump
Product Configuration
Single replacement component
Application
Selected marine stern-drive and inboard cooling systems
Engine Family
Selected GM inline four-cylinder and six-cylinder applications
Manufacturer Status
Aftermarket replacement; not an OEM-branded component
Material, finish, and warranty
Not specified in the applicable product records

What's in the Box

  • 1 x Circulation Water Pump

Gaskets, sealants, hoses, belts, fasteners, and other installation hardware are not confirmed as included. Verify the contents of the package before beginning installation.

Installation Notes

  1. Confirm the engine model, year, cylinder configuration, and existing pump reference number before removing the original component.
  2. Disconnect the battery and allow the engine to cool completely.
  3. Drain the cooling system as required by the engine manufacturer's service procedure.
  4. Remove the hoses, belt, and fasteners connected to the existing circulation pump, following the applicable service manual.
  5. Clean the mounting surface and inspect the hoses, belt, pulley, and adjacent cooling components for wear or damage.
  6. Install the replacement pump with the correct new gasket or seal specified for the engine. The gasket is not confirmed as included.
  7. Tighten fasteners to the engine manufacturer's torque specifications and reinstall the hoses and belt correctly.
  8. Refill the cooling system with the specified coolant, bleed air if required, and inspect for leaks.
  9. Run the engine according to the service procedure and verify proper temperature and circulation before returning the vessel to service.

Troubleshooting & FAQ

How do I confirm that this pump fits my engine?

Match your existing reference number and verify the complete engine condition, including brand, year, displacement, cylinder configuration, and horsepower where listed. Do not rely on displacement alone because similar engines may use different pumps.

Is this a complete kit?

No. The company product record identifies this as a single circulation water pump, not a kit. A gasket and other installation materials are not confirmed as included.

Is this an OEM pump?

No. This listing is for an aftermarket replacement. The reference numbers identify applicable manufacturer or aftermarket applications and are not a claim that this product is manufactured by those brands.

What are common signs of a failing circulation water pump?

Possible symptoms include overheating, coolant or water leakage near the pump, abnormal bearing or pulley noise, looseness at the pulley, or reduced cooling performance. Diagnose the complete cooling system before replacing the pump.

Does the pump include a gasket?

The applicable product records do not confirm a gasket as part of the package. Plan to use the correct new gasket or seal specified for your engine.

Should installation be performed by a professional?

Professional installation is recommended when you are not familiar with marine cooling systems. Follow the engine manufacturer's service information and use the specified torque, coolant, and bleeding procedures.

Shipping speed and cost

Shipping methods, delivery estimates, and costs are shown at checkout and may vary by destination.

Warranty and returns

Warranty and return terms are governed by the seller's current policy. Contact support with your order details if you need assistance.

Safety & Important Information

  • Do not order based only on engine displacement or a general brand match.
  • Verify the reference number, mounting arrangement, cylinder configuration, and year range against your original pump and service documentation.
  • Never work on a hot engine or a pressurized cooling system.
  • This is an aftermarket replacement and is not an OEM-branded component.
  • Stop operation immediately if the engine overheats or if a leak is found after installation.

About Sea Sierra

  • Marine Replacement Parts — We supply aftermarket components for selected marine engine and stern-drive applications.
  • Application-Focused Listings — Product references and engine conditions are provided to help customers compare replacement parts.
  • Support When You Need It — Contact support with your engine details and existing reference number if you need help checking an application.

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