BRP Johnson 35HP 2-Stroke Outboard Engine Parts

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This page supports BRP Johnson 35HP 2‑Stroke outboard engines and helps you find compatible parts and service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse our main Johnson/Evinrude/OMC collection any time. Scroll to the bottom of this page to start browsing parts for this engine, and remember you can use the “Filter & Sort” controls on the collection page to narrow results by horsepower, year range, and part category.

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How to Identify Your 35HP Model

Find the model/serial plate on the transom bracket or swivel bracket. Record the full model code and serial number.
Model codes typically include the brand prefix and horsepower (e.g., “35”), plus suffix letters that indicate shaft length and control/start type (e.g., S/L for short/long shaft; R/E for rope/electric start).
This is a 2‑Stroke platform: premix fuel or oil‑injection system (varies by model). There is no crankcase engine oil or spin‑on oil filter as found on 4‑Stroke engines.
When ordering parts, match by the exact model code and serial to account for mid‑year changes.

Engine Overview

Johnson 35HP 2‑Stroke Platform

Feature	Description
Configuration	Inline 2‑cylinder, carbureted 2‑Stroke with conventional water‑pump impeller cooling.
Common Models	35HP 2‑Stroke variants offered in short and long shaft, rope or electric start, and tiller or remote control versions across multiple production years.
Advantages	Light weight, simple carburetor service, strong low‑to‑mid range performance.
Notes	Many service parts are shared across the 20–35HP family. Always confirm by model and serial number before ordering.

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)	Every 100 hours or annually	Change before winter layup; check for water or metal. If milky or leaking, inspect seals.	Johnson/Evinrude/OMC Lower Unit Seal Kits
Spark plugs	Inspect every 50 hours; replace 100 hours or annually	Use the specified heat range and gap; replace if fouled or worn.	Spark Plugs
Fuel filter / water‑separating filter	Every 100 hours or annually	Replace more often in dirty fuel environments; keep a spare onboard.	Fuel Filters
Fuel pump diaphragm/service	Every 2–3 seasons or as needed	Hard starting or fuel starvation often indicates a weak pump or cracked diaphragm.	Fuel Pumps
Water pump impeller/kit	Every 2 seasons (annually in sandy/silty water)	A weak tell‑tale or overheat alarm often points to an aged impeller or worn cup/plate.	Johnson/Evinrude/OMC Water Pump Repair Kits
Anodes (zincs)	Inspect every 3 months; replace when 50% depleted	Select material for your water type (zinc, aluminum, magnesium).	Johnson/Evinrude/OMC Anodes
Premix fuel ratio / oil‑injection inspection	Each refuel; inspect seasonally	Most 35HP models use 50:1 premix unless equipped with a factory oil‑injection system. Verify in your manual.	Johnson/Evinrude/OMC Service & Maintenance Kits
Thermostat inspection/replacement	Every 2–3 seasons or if overcooling/overheating	A stuck thermostat can cause cold running (smoke/plug fouling) or overheat.	Johnson/Evinrude/OMC Outboard Parts

Frequently Used Parts Categories

Routine Service — Johnson/Evinrude/OMC Service & Maintenance Kits
Cooling System — Water Pump Repair Kits
Fuel System — Fuel Filters
Fuel Delivery — Fuel Pumps
Ignition / Electrical — Electrical Items
Gearcase Sealing — Lower Unit Seal Kits
Corrosion Protection — Anodes
Propulsion — Johnson/Evinrude/OMC Propellers

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak tell‑tale or overheat alarm	Inspect intake screens for debris; confirm strong primer bulb; test thermostat; evaluate impeller age.	Water pump repair kit, impeller, thermostat, intake screen
Poor acceleration or power loss	Check fuel freshness; replace fuel filter; inspect fuel pump diaphragm; examine spark plugs and gaps; verify throttle linkage.	Fuel filter, fuel pump, spark plugs, carburetor service kit
Hard starting or rough idle	Confirm choke/primer operation; check for air leaks in fuel lines; verify idle mixture and sync‑n‑link; inspect plugs.	Fuel lines/connectors, primer bulb, spark plugs, carburetor kit
Excessive smoke (2‑Stroke)	Verify correct 50:1 premix; check thermostat (cold running causes fouling); ensure plugs are clean and correct heat range.	Spark plugs, thermostat
Gearcase noise or metal in gear oil	Change gear oil and inspect; check prop shaft seal for fishing line; evaluate shift and carrier seals if water intrusion is found.	Lower unit seal kit, bearings, propeller hardware

FAQs

Are parts interchangeable between different years or platforms?

Some 20–35HP components interchange, but mid‑year updates and model suffixes affect fit. Always match parts using your full model code and serial number.

When should I replace the impeller?

Replace the impeller every two seasons (annually in sandy or silty water) or any time water flow is weak, the engine overheats, or the housing shows wear.

How often should I change the lower unit gear oil?

At least every 100 hours or annually, and before winter layup. If the oil is milky or contaminated, service the seals before running again.

What information do you need to confirm part compatibility?

Please provide the complete model code, serial number, shaft length (S/L/XL), and whether it is rope or electric start and tiller or remote control. Photos of the nameplate and the part area also help.

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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.