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Evinrude 235HP 2-Stroke Outboard Parts

(4 products)

This page is for Evinrude 2‑Stroke 235 HP outboard engines. Use it to find compatible parts and service information, including maintenance intervals, common replacement items, and troubleshooting guidance. You can also browse our main Johnson/Evinrude collection. Scroll to the bottom of the page to start browsing parts for this engine, and remember that on the collection page you can use the Filter & Sort controls to narrow results by horsepower, year range, and part category/section.

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How to Identify Your 235 HP Model

  • Model number plate location: typically on the top outside edge of the clamp bracket or on the top of the swivel bracket (port or starboard).
  • Reading the model code: the base model is followed by suffix letters indicating shaft length (L/XL), starting/charging options, and a year code. The serial can help confirm exact year and running changes.
  • Platform cues: the 235 HP is a 2‑stroke V6. Early engines are pre‑mix; later units may have oil injection (VRO). Verify which system you have before ordering fuel/oil components.
  • Gearcase/shaft: most were offered in 20 in (L) and 25 in (XL) shaft lengths; note this when selecting gearcase, water pump, and propeller parts.

Engine Overview

Evinrude 235 HP V6 2‑Stroke

Feature Description
Configuration 90° V6, carbureted 2‑stroke; mechanical fuel pump; pre‑mix or VRO oil injection depending on year.
Common Models Late‑1970s to mid‑1980s 235 HP V6 models, including standard and performance variants (XP/GT in some years).
Advantages High power‑to‑weight, strong mid‑range punch, simple mechanical systems, wide parts availability.
Notes Many cooling/ignition and gearcase components overlap with same‑era OMC V6 engines (200–225 HP). Always confirm by model/serial, shaft length, and oiling system type.

Routine Maintenance & Service Parts

Intervals below are general guidelines; always follow your official service manual for procedures and specifications.

Item Interval* Remarks Parts Link
Gear oil (lower unit) Every 100 hours or annually Inspect for water (milky oil) and metal. Replace drain plug seals; pressure test if contamination is found. Lower Unit Seal Kits
Spark plugs Inspect 50 hours; replace annually or as needed Use the correct heat range and gap for your exact model/year; fouling often indicates rich mixture or oiling issues. Johnson/Evinrude/OMC Outboard Parts
Fuel filter / water‑separating filter Inspect 50 hours; replace 100 hours or each season Check primer bulb and fuel lines for softness, cracks, or air leaks. Fuel Filters
Water pump impeller / kit Inspect annually; replace every 2–3 seasons (or sooner in sandy/silty water) Weak tell‑tale or overheat alarm points to impeller, housing wear, or thermostat issues. Water Pump Repair Kits
Anodes (zincs) Inspect every 50 hours; replace when 50% depleted Use the correct alloy for your water (salt, brackish, or fresh) and keep mounting points clean. Johnson/Evinrude/OMC Anodes
Fuel/oil mix or oil injection service Each season; verify before first start Premix engines: run 50:1 TC‑W3. Oil‑injected engines: inspect/replace VRO pump and oil lines; confirm alarm operation and calibrate as specified. Johnson/Evinrude/OMC Hoses | Fuel Pumps
Thermostats / pressure relief valves Inspect annually; replace as needed Stuck‑open thermostats cause cold running and excessive smoke; stuck‑closed can trigger overheat. Johnson/Evinrude/OMC Outboard Parts

Frequently Used Parts Categories

Common Symptoms & Quick Checks

Symptom Check First Related Parts
Weak tell‑tale or overheat alarm Verify water inlet screens are clear; inspect impeller and housing; test thermostats. Water pump kit, thermostat(s), intake screen, anodes.
Poor acceleration / power loss Check prop condition/pitch; verify compression; inspect spark plugs; confirm fuel delivery and carburetor cleanliness. Propeller, spark plugs, fuel filter, fuel pump, carburetor kits.
Hard starting / rough idle Prime fuel system; check choke/primer solenoid operation; look for air leaks in lines; set idle mixture/sync‑n‑link. Fuel filter, fuel lines, primer bulb, carburetor kits, spark plugs.
Excessive smoke (2‑stroke) Confirm correct oil ratio (premix) or VRO calibration; ensure thermostats aren’t stuck open; check plug heat range. Oil pump (VRO), oil/fuel hoses, thermostats, spark plugs.
Gearcase noise / metal in gear oil Drain and inspect gear oil; check for fishing line on prop shaft; pressure/vacuum test seals. Lower unit seal kit, bearings, gear set, prop shaft hardware.

FAQs

Are parts interchangeable across different years of the 235 HP V6?

Many items interchange among late‑70s to mid‑80s OMC V6 engines, but ignition, cooling, and gearcase components can vary by year and model suffix. Always confirm with the model number, serial, and shaft length before ordering.

When should I replace the water pump impeller?

Inspect yearly and replace every 2–3 seasons, or immediately if you see a weak tell‑tale, overheat warnings, or if the impeller shows wear or missing vanes.

How often should I change the lower unit gear oil?

Change at least once per season or every 100 hours. If you find milky oil or metal, replace seals and pressure‑test the gearcase.

What information do you need to confirm part compatibility?

Please provide the full model number (including suffix), serial number, shaft length, oiling system type (premix or VRO), and any known modifications. Photos of the nameplate and the part needing replacement are helpful.

Ready to find parts by horsepower, year, and model? Browse our main Johnson/Evinrude collection to locate compatible components for your Evinrude 235 HP 2‑Stroke V6.

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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.
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