BRP Johnson 40HP 2-Stroke Outboard Engine Parts

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This page is for BRP Johnson 40HP 2-Stroke outboard engines. Use it to 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 collection. Scroll to the bottom 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 40HP Model

Find the nameplate/serial tag on the clamp bracket or on the swivel bracket (port or starboard). Record the full model and serial number.
Model codes and suffixes indicate features such as electric start (E), tiller/remote (T/R), and shaft length (S/L). The suffix lettering often encodes year and running changes—verify against the serial tag.
These 40HP motors are 2‑stroke designs; later years may use loop‑charged induction. Carburetion, ignition, and gearcase parts can vary by model year and suffix.
If in doubt, match parts by the exact model code stamped on your engine (e.g., examples like 40EL71G, J40ELCEC, J40TELENM indicate year and configuration).

Platform Overview

Johnson 40HP 2‑Stroke (Inline‑2)

Feature	Description
Configuration	Inline‑2, carbureted 2‑stroke; later variants use loop‑charged induction.
Common Models	Examples across late‑1960s to early‑1990s include codes like 40EL71G (early 1970s), J40ELCEC (late 1980s), and J40TELENM (early 1990s).
Advantages	Lightweight, simple maintenance, strong low‑to‑midrange performance, and broad parts availability.
Notes	Many service items are shared across years, but ignition, carburetor, and gasket sets vary by model suffix. Always confirm with your exact model/serial.

Routine Maintenance & Service Parts

Intervals below are general guidelines for typical use. Always follow the official service manual procedures and intervals for your exact model.

Item	Interval*	Remarks	Parts Link
Gear oil (lower unit)	Every 100 hours or annually	Inspect for water or metal; replace drain/fill gaskets; reseal if intrusion is found.	Johnson/Evinrude Collection
Spark plugs	Inspect every 100 hours; replace as needed	Use the correct heat range and gap per manual; replace if fouled or worn.	Spark Plugs
Fuel filter / inline filter	Every 100 hours or annually	Replace more often if using E10 fuel; check primer bulb and fuel lines for age cracks.	Fuel Filters
Water pump impeller / kit	Every 2–3 seasons or 200 hours	Replace sooner if weak telltale or overheat alarm; inspect housing and key.	Johnson/Evinrude Water Pump Kits
Anodes (zincs)	Inspect quarterly; replace when 50% depleted	Choose alloy for your water (zinc/brackish, aluminum/salt, magnesium/fresh).	Johnson/Evinrude Anodes
2‑Stroke fuel/oil	Every fill‑up (premix) or per VRO service schedule	Use the correct TC‑W3 oil; many 40HP models run 50:1 premix unless equipped with a functioning oil‑injection system—confirm in your manual.	Johnson/Evinrude Outboard Parts
Gearcase seal inspection (if water found)	As needed	Pressure/vacuum test the lower unit; reseal before further use.	Lower Unit Seal Kits

Frequently Used Parts Categories

Routine Service – Johnson/Evinrude Service & Maintenance Kits
Cooling System – Water Pump Repair Kits
Fuel System – Fuel Filters and Fuel Hoses
Ignition / Electrical – Electrical Items and Starters
Propulsion – Johnson/Evinrude Propellers
Corrosion Protection – Johnson/Evinrude Anodes
Gearcase Seals – Lower Unit Seal Kits

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak telltale stream or overheat alarm	Inspect intake screens for debris, check impeller condition, verify thermostat operation.	Water pump kit, pump housing, gaskets, thermostat
Hard starting or rough idle	Confirm fresh fuel and proper 2‑stroke mix; inspect spark plugs; check primer bulb and fuel filter.	Spark plugs, fuel filter, primer bulb, carburetor kit
Poor acceleration or power loss	Compression test; verify throttle linkage sync; inspect fuel delivery and exhaust relief for blockage.	Carburetor kit, fuel pump, fuel lines/hoses, propeller (pitch/damage)
Excessive smoke	Check oil ratio (premix) or oil‑injection function; verify plugs and carb settings are correct.	Spark plugs, carburetor kit, oil‑injection components
Gearcase noise or metal in gear oil	Drain gear oil to inspect; pressure/vacuum test; check prop shaft for fishing line and seal damage.	Lower unit seal kit, bearings, shims

FAQs

Are parts interchangeable across different years of 40HP Johnson models?

Some service items (plugs, anodes, impellers) overlap, but ignition, carburetor, and gasket components often vary by model suffix and year. Always confirm with the exact model/serial from your nameplate.

When should I replace the water pump impeller?

Every 2–3 seasons or about 200 hours, and sooner if the telltale is weak, the engine overheats, or the impeller shows set or cracks. Coastal/sandy use may require more frequent service.

How often should I change lower unit gear oil?

At least every 100 hours or annually. Inspect for water intrusion (milky oil) or metal. If contamination is present, pressure/vacuum test and reseal before further operation.

What information do you need to confirm part compatibility?

Please provide the full model code and serial number from the engine’s nameplate, plus any relevant details (shaft length, tiller/remote, electric start). Photos of the tag and the part to replace are very helpful.

Ready to find parts? Browse the main Johnson/Evinrude collection and narrow by horsepower, year, and model to locate the right components for your 40HP 2‑Stroke.

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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.