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Water Pump Housing – Fits Yamaha F2.5 / Parsun F2.6 Outboard (2003+)

Sale price $12.11 Regular price $19.00
Shipping calculated at checkout.

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).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This aftermarket Water Pump Housing – Fits Yamaha F2.5 / Parsun F2.6 Outboard is designed for reliable performance in Yamaha F2.5 4-stroke outboard engines from 2003 and newer, as well as compatible Parsun F2.6 4-stroke models.

It serves as a direct replacement for Yamaha part numbers 69M-G5321-00-94 and 69M-G4311-00-00, and Parsun equivalents PAF2.6-03000014 and PAF2.6-03000008.

  • Installs as a direct OEM-equivalent replacement.
  • Engineered for high wear and temperature resistance.
  • Made from premium rubber for durability in marine environments.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Yamaha 69M-G5321-00-94
Yamaha 69M-G4311-00-00
Parsun PAF2.6-03000014
Parsun PAF2.6-03000008

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Yamaha, this housing fits F2.5 models from 2003 onward.

For Parsun, this housing is for the F2.6 model. Please verify your part number, as specific years are not available.

Brand Model Rated HP Stroke Years OEM Part No.
Yamaha F2.5 2.5 4-Stroke 2003+ 69M-G5321-00-94, 69M-G4311-00-00
Parsun F2.6 2.6 4-Stroke PAF2.6-03000014, PAF2.6-03000008

Technical Specs

Product Type
Water Pump Housing
Installation
Direct OEM replacement
Fuel Type
Gasoline
Housing Material
Premium rubber
Housing Color
Black
Dimensions
13.0cm L x 10.3cm W x 4.0cm H
Weight
54g (0.12 lb)
Operating Temperature
Up to 105°C (221°F)
Other Technical Attributes
High wear resistance, high temperature resistance

What’s in the Box

  • 1 x Water Pump Housing (Replaces 69M-G5321-00-94, PAF2.6-03000014)

Installation Notes

  1. Disconnect the battery and spark plug wire for safety.
  2. Place a drain pan under the lower unit and remove the gearcase oil drain screw to empty the oil.
  3. Remove the bolts securing the lower unit (gearcase) to the engine's midsection and carefully lower it.
  4. Locate the water pump assembly on top of the gearcase and remove the bolts securing the old housing.
  5. Lift the old housing off, taking care not to lose the woodruff key for the impeller. Inspect the impeller and wear plate, replacing if necessary.
  6. Clean the mounting surfaces and install the new water pump housing, ensuring a proper seal. Tighten bolts to manufacturer-specified torque.
  7. Re-install the lower unit, refill the gearcase with fresh oil, and reconnect the battery/spark plug.
  8. Before regular use, test the engine with a water source to confirm the cooling system functions correctly.

Troubleshooting & FAQ

How do I confirm this housing fits my outboard?

First, check your engine model and year against the compatibility table. Second, and most importantly, compare your existing part number to those listed in our Part Number Matrix to ensure an exact match.

What are the signs of a failing water pump housing?

Common symptoms include the engine overheating, a weak or non-existent stream of water from the "telltale" outlet, or visible cracks and warping on the housing itself. It is often replaced along with the water pump impeller during routine service.

How often should the water pump be serviced?

As a best practice, inspect your water pump impeller and housing annually or every 100 hours of operation, whichever comes first. Always replace components that show signs of wear, brittleness, or damage.

Is this part functionally identical to the original OEM part?

Yes, this aftermarket housing is designed to meet or exceed original equipment manufacturer (OEM) specifications for fit, material quality, and performance. It provides a reliable, cost-effective alternative to the original part.

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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