386084 Water Pump Impeller for Johnson Evinrude 8-15 HP | Quickmarine
386084 Water Pump Impeller for Johnson Evinrude 8-15 HP | Quickmarine is backordered and will ship as soon as it is back in stock.
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386084 Water Pump Impeller for Johnson Evinrude 8-15 HP | Quickmarine
386084 Water Pump Impeller for Johnson Evinrude 8-15 HP | Quickmarine is backordered and will ship as soon as it is back in stock.
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Description
Description
Quickmarine aftermarket outboard cooling part
This Quickmarine 386084 water pump impeller is an aftermarket replacement part for selected Johnson, Evinrude, OMC and BRP small-horsepower outboards that use the 386084 / 0386084 impeller family. It is supplied as one replacement impeller and is intended to help restore proper raw-water circulation through the outboard cooling system.
Product Overview
The 386084 water pump impeller is used inside the lower-unit water pump to draw cooling water into the engine and move it through the powerhead. A worn, cracked or heat-damaged impeller can reduce water flow, cause a weak tell-tale stream and increase the risk of overheating.
This replacement impeller is designed for buyers who have identified the Johnson / Evinrude / OMC / BRP 386084 or 0386084 part family on their old impeller, service record or parts diagram. Before ordering, compare the part number, engine model, year range and physical dimensions with your original component.
Why Choose This Quickmarine Replacement Impeller
Part Number Cross Reference
Use the table below to compare the most common reference numbers associated with this impeller family. Cross-reference numbers are provided for identification only and do not imply that this product is manufactured by, sponsored by or affiliated with the listed brands.
| Brand / Reference Source | Part Number | How to Use This Information |
|---|---|---|
| Johnson / Evinrude / OMC / BRP | 386084, 0386084 | Primary OEM reference numbers to compare with your old part or official parts diagram. |
| Sierra | 18-3050 | Common aftermarket cross-reference for the same impeller family. |
| CEF | 500355 | Common European-style cross-reference used by marine parts catalogs. |
| GLM / Mallory | GLM 89770; Mallory 9-45201 | Additional aftermarket references that may appear in catalogs and search results. |
Technical Specifications
The measurements below are listed to help buyers compare the replacement impeller against the old component. Minor dimensional differences may appear between aftermarket manufacturers or measurement methods, so physical verification is recommended before installation.
| Specification | Value | Buyer Verification Note |
|---|---|---|
| Product Type | Water pump impeller | Used inside the outboard lower-unit water pump. |
| Primary OEM Reference | 386084 / 0386084 | Confirm against your old impeller or official parts diagram. |
| Blade Count | 6 blades | Match the old impeller blade count where possible. |
| Approximate Outer Diameter | 38.40 mm | Some aftermarket listings show nearby values, so treat this as an approximate measurement. |
| Approximate Shaft Insert Diameter | 12.75 mm | Confirm the brass hub fits your driveshaft correctly. |
| Approximate Height / Depth | Please verify with your original part; common listings are around 17-18 mm | Height can vary slightly by measuring method and manufacturer. |
| Material | Flexible marine-grade rubber with metal hub | Do not run without cooling water; rubber impellers require water lubrication. |
| Approximate Item Weight | About 17 g | Weight is not a fitment standard; use dimensions and part number first. |
| Package Contents | 1 water pump impeller | Gaskets, key, housing, wear plate and sealant are not included unless separately stated. |
Compatible Engine Models
This impeller is intended for selected Johnson, Evinrude, OMC and BRP outboards that use the 386084 / 0386084 water pump impeller. Because marine fitment can vary by year, serial range, gearcase and parts diagram revision, the most reliable confirmation method is to match the OEM number and old component dimensions.
| Engine Brand | Common HP Range | Common Application Group | Fitment Note |
|---|---|---|---|
| Johnson / Evinrude / OMC / BRP | 9.9HP and 15HP | Selected two-stroke outboards, commonly listed across 1974-1992 and broader catalog ranges in some parts sources. | Verify exact model year and parts diagram before ordering. |
| Johnson / Evinrude / OMC / BRP | 8HP, 9.9HP and 15HP | Selected four-stroke outboards, commonly listed around mid-1990s to early-2000s applications. | Confirm by OEM number 386084 / 0386084 and old impeller dimensions. |
| Johnson / Evinrude / OMC / BRP | 10HP | Some aftermarket product pages mention 10HP compatibility. | Do not rely on horsepower alone; confirm against the original part number and official parts diagram. |
Installation and Inspection Notes
Water pump service typically requires access to the lower-unit pump housing. During inspection, check the old impeller for missing vanes, cracking, stiffness, blade set or heat damage. If pieces are missing, inspect the water passages because broken rubber fragments can restrict cooling flow.
When installing the new impeller, lightly lubricate the impeller and pump cup with a suitable marine-safe lubricant, align the drive key correctly and make sure the vanes are folded in the proper rotational direction. Inspect the wear plate, cup, housing, gaskets and seals; a new impeller may not pump correctly inside a scored or damaged housing.
FAQ
How do I know if this 386084 impeller fits my Johnson or Evinrude outboard?
Start by checking the OEM reference number in your service manual, parts diagram or old impeller. This Quickmarine replacement is intended for engines using the 386084 / 0386084 impeller family. You should also compare the blade count, outer diameter, shaft insert diameter and engine model year before ordering.
Is this an OEM Johnson, Evinrude, OMC or BRP part?
No. This is a Quickmarine aftermarket replacement part. Johnson, Evinrude, OMC, BRP, Sierra, CEF, GLM and Mallory names or numbers are used only to identify compatibility and cross-reference information.
What is included in the package?
The package includes one water pump impeller. It does not include a full water pump repair kit, gasket set, key, housing, wear plate or sealant unless those items are explicitly listed separately on the product offer.
What are common signs of a failing outboard impeller?
Common warning signs include a weak or sputtering tell-tale stream, reduced cooling water output, overheating alarms, rising engine temperature and visible damage such as cracked, missing or permanently bent impeller vanes.
How often should an outboard water pump impeller be replaced?
Many maintenance guides recommend inspecting the impeller at least annually or around every 100 hours, with replacement intervals depending on use, water conditions and manufacturer guidance. Operation in sand, silt, saltwater or long storage periods can shorten service life.
Can I run my outboard briefly without water after installing the impeller?
No. Even a short dry start can damage a rubber impeller because water acts as both coolant and lubricant. Always provide cooling water with a test tank or proper motor flusher before starting the engine on land.
Important Notes Before Ordering
This page is designed to help buyers identify the correct replacement water pump impeller by part number, application group and approximate dimensions. It should not replace your official service manual or OEM parts diagram. If your old impeller number, dimensions, engine model or year do not match the information shown here, verify fitment before purchase.
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