OMC 2-Stroke 35HP Outboard Engine Parts

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This page is dedicated to OMC 2‑Stroke 35HP outboard engines and helps you quickly find compatible parts and service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Johnson/Evinrude/OMC collection, and at the bottom of this page you’ll find links to start browsing parts for this engine. On the collection page, use the Filter & Sort controls to narrow results by horsepower, year range, and part category.

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How to Identify Your 35HP Model

Nameplate location: Look for the model/serial plate on the transom bracket or swivel bracket. A secondary sticker may be on the engine block.
Reading the model code: Suffixes typically indicate shaft length (S=15", L=20"), electric start (E), and steering/control type (tiller vs. remote). Note all letters and numbers.
Year and platform clues: Many 35HP OMC two‑strokes from roughly the late 1970s through early 2000s share parts with 28/30/35HP families. Confirm exact year or model code for best compatibility.
2‑Stroke specifics: Most engines are premix 50:1 or use an oil‑injection/VRO system. Verify which system you have before ordering fuel/oil components.

Platform Overview

35HP Inline‑2 Carbureted 2‑Stroke

Feature	Description
Configuration	Inline 2‑cylinder, carbureted 2‑stroke; rope or electric start; short or long shaft options.
Common Models	Johnson/Evinrude/OMC 35HP two‑strokes (approx. late 1970s–early 2000s), often sharing components with 28/30/35HP families.
Advantages	Lightweight, simple design, easy starting and strong low‑ to mid‑range performance for small boats.
Notes	Many ignition, carburetor, and water pump parts overlap across 28/30/35HP lines. Verify shaft length, start type, and year when selecting gearcase, controls, and mounting parts.

Routine Maintenance & Service Parts

Intervals below are general guidelines for typical recreational use. Always follow the official service manual for your exact model and operating conditions.

Item	Interval*	Remarks	Parts Link
Gear oil (lower unit)	Annually or every 100 hours	Inspect for water (milky oil) and metal on magnet; renew drain/fill plug gaskets.	Johnson/Evinrude/OMC Lower Unit Seal Kits
Spark plugs	Inspect 50 hours; replace yearly	Use correct heat range and gap; replace if fouled or worn.	Spark Plugs
Fuel filter / inline filter	100 hours or annually	Replace clogged or water‑contaminated filters; use fresh fuel.	Fuel Filters
Water pump impeller/kit	Every 2–3 seasons (or sooner in sandy/silty water)	Restore cooling flow; inspect wear plate, cup, and key.	Johnson/Evinrude/OMC Water Pump Repair Kits
Anodes (zincs)	Inspect each season; replace when 50% depleted	Protects against corrosion; choose alloy for your water (zinc/aluminum/magnesium).	Johnson/Evinrude/OMC Anodes
Thermostat	Inspect 2 years; replace as needed	Sticking thermostats cause cold running or overheat alarms.	Johnson/Evinrude/OMC Parts
2‑Stroke oiling	Every outing (premix) / seasonally (VRO hoses)	Use 50:1 TC‑W3 premix unless otherwise specified. For oil‑injection/VRO systems, inspect hoses and clamps.	Johnson/Evinrude/OMC Hoses
Propeller & hardware	Inspect each trip; replace if bent/chipped	Check hub, cotter pin, and shaft seals if fishing line is found.	Johnson/Evinrude/OMC Propellers

Frequently Used Parts Categories

Routine Service — Johnson/Evinrude/OMC Service & Maintenance Kits
Cooling System — Water Pump Repair Kits
Gearcase / Seals — Lower Unit Seal Kits
Ignition / Electrical — Electrical Items
Fuel System — Carburetor Components
Propellers — Johnson/Evinrude/OMC Propellers
Corrosion Protection — Johnson/Evinrude/OMC Anodes

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak telltale or overheat alarm	Inspect intake screens, thermostat, and impeller; look for sand/silt or salt buildup.	Water pump kit, thermostat, water inlet screen, grommets
Hard starting or rough idle	Prime fuel system, check for stale fuel, inspect plugs and plug wires.	Fuel filter, carburetor repair kit, spark plugs, ignition components
Poor acceleration / power loss	Check prop condition and pitch, verify compression and spark on both cylinders.	Propeller, spark plugs, coils, carburetor kit
Excessive smoke (2‑stroke)	Confirm correct oil ratio; inspect choke/enricher and carb settings.	Carburetor kit, fuel pump diaphragm, oil‑injection/VRO hoses
Gearcase noise or metal in gear oil	Check prop shaft for fishing line; inspect seals and refill with fresh gear oil.	Lower unit seal kit, drain/fill plug washers, prop shaft seals

FAQs

Are parts interchangeable across different years of 35HP OMC two‑strokes?

Many service items (impellers, tune‑up parts, carb kits) are shared across 28/30/35HP families, especially from the late 1970s through early 2000s. Always confirm by model code, shaft length, and start/control type before ordering.

When should I replace the impeller?

As preventive maintenance, replace every 2–3 seasons, or sooner if you notice a weak telltale, overheat alarms, or you operate in sandy/silty conditions.

How often should I change the lower unit gear oil?

Change at least once per year or every 100 hours. Inspect for water contamination (milky oil) and replace drain/fill plug gaskets during service.

What information do you need to confirm part compatibility?

Provide the full model number and serial, shaft length (15" or 20"), start type (electric or rope), steering/control type (tiller or remote), and approximate year. Photos of the nameplate and the part in question also help.

Ready to find parts for your OMC 2‑Stroke 35HP? Browse the main Johnson/Evinrude/OMC collection by horsepower, year, and model to locate the correct components.

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