Evinrude 2-Stroke 14-35HP Outboard Marine Engine

(3 products)

This page is tailored for Evinrude 2-Stroke 14–35HP outboard engines. Use it to find compatible parts and service information, including maintenance tips, common replacement items, and troubleshooting guidance. You can also browse our main Evinrude collection any time. Scroll to the bottom to start browsing parts for this engine, and on the collection page use the Filter & Sort controls to narrow by horsepower, year range, and part category.

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How to Identify Your 14–35HP Model

Nameplate location: Look for the model/serial plate on the transom bracket or swivel bracket. The same code is often stamped on an inner core plug on the powerhead.
Reading the code: Evinrude model numbers and suffixes identify horsepower, year/era, shaft length (S/L/XL), and control type (tiller vs. remote). Pre-1980 motors vary by code format, so verify the full number.
Platform hints: Most 14–35HP 2‑stroke models are twin‑cylinder, carbureted designs. Electric‑start options and long‑shaft variants are common; verify these when selecting parts.
Year confirmation: Cross‑check the model number against your owner’s or service manual to confirm the correct year range before ordering.

Platform Overview

Evinrude 2‑Stroke 14–35HP (Twin‑Cylinder, Carbureted)

Feature	Description
Configuration	Twin‑cylinder, loop/cross‑flow carbureted 2‑stroke with rope or electric start; short and long shaft variants were produced.
Common Models	Examples include 15HP (e.g., 15404, 15505), 18HP (15020, 15024), 25HP (25018, 25502), 35HP (25028, 35902). Model codes vary by year and configuration.
Advantages	Light weight, simple maintenance, strong low‑to‑mid‑range torque, plentiful aftermarket parts support.
Notes	Many wear items interchange within HP families and year ranges, but always match by full model number, shaft length, and start/control type before purchasing.

Routine Maintenance & Service Parts

Intervals below are general guidelines for classic 2‑stroke outboards. Always follow your official service manual and adjust for heavy use or harsh conditions.

Item	Interval*	Remarks	Parts Link
Lower Unit Gear Oil	Every 100 hours or annually	Inspect for water intrusion/metal; replace drain screw seals as needed.	Lower Unit Seal Kits
Spark Plugs	Inspect every 50–100 hours; replace as required	Check heat range and gap per manual; replace fouled or worn plugs.	Spark Plugs
Fuel Filter / Inline Filter	Every 100 hours or annually	Replace clogged elements; drain water separators if fitted.	Fuel Filters
Water Pump Impeller / Kit	Every 2–3 seasons (or 200 hours)	Critical for cooling; replace sooner if weak telltale or overheat warnings occur.	Water Pump Repair Kits
Anodes (Sacrificial)	Inspect every 3 months; replace when 50% consumed	Use the correct material for your water (aluminum/zinc/magnesium).	Evinrude/OMC Anodes
Propeller & Cotter/Hardware	Inspect every trip; remove/grease spline seasonally	Check for fishing line around the shaft; verify correct pitch for load.	Evinrude/OMC Propellers
Fuel/Oil Mix (2‑Stroke)	Every fill‑up	Most later models use 50:1 (gas:TC‑W3 oil). Older bearings may require richer mix—confirm in your manual.	Evinrude Parts & Fluids

Frequently Used Parts Categories

Routine Service: Evinrude Service & Maintenance Kits
Cooling System: Water Pump Repair Kits and Impellers
Fuel System: Fuel Filters and Fuel Pumps
Ignition / Electrical: Spark Plugs and Electrical Items
Lower Unit & Propulsion: Lower Unit Seal Kits and Propellers
Gaskets & Sealing: Evinrude/OMC Gaskets and Hoses
Accessories: Hydrofoil Stabilizers and Propeller Guards

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak telltale / overheat alarm	Inspect intake screens for blockage; verify impeller condition; confirm thermostat operation.	Water pump kit, intake screen, thermostat, anodes
Poor acceleration / power loss	Check fuel quality, filter restriction, spark plug condition, prop damage or wrong pitch.	Fuel filter, spark plugs, fuel pump diaphragm, propeller
Hard starting / rough idle	Verify choke/enrichment function, carb cleanliness, plug gap, and idle mixture settings.	Spark plugs, carburetor kit, fuel pump, ignition components
Excessive smoke (2‑stroke)	Confirm correct fuel/oil ratio; look for stuck choke or flooded carb; inspect plugs for fouling.	Spark plugs, carburetor parts, fuel needles/seats
Gearcase noise / metal in gear oil	Check prop shaft for fishing line, drain and inspect oil, pressure test seals.	Lower unit seal kit, bearings, shims

FAQs

Are parts interchangeable across different years or HP models?

Some wear items interchange within the same HP family and era, but many components (gaskets, ignition, gearcase seals) are year and model specific. Always match by full model number and configuration.

When should I replace the impeller?

As a preventive measure every 2–3 seasons (or ~200 hours). Replace immediately if the telltale weakens, the engine overheats, or sand/silt operation was frequent.

How often should I change gear oil in the lower unit?

Inspect or replace every 100 hours or at least annually. If the oil appears milky or metallic, service the seals and investigate internal wear before further use.

What information do you need to confirm part compatibility?

Provide the complete model number, serial number, shaft length, and start/control type. Photos of the nameplate and the existing part are very helpful.

Ready to find parts? Browse the main Evinrude collection and filter by horsepower, year range, and part category to locate components for your 14–35HP model.

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If you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.