13840-90J00 Suzuki 5033696 Johnson Airbox Silencer Duct | Genuine Used Part

🔧 Product Description

Genuine Used Suzuki Johnson DF90-DF140 Air Silencer Duct - Part Numbers: 13840-90J00 and 5033696

A genuine pre-owned intake-air duct for selected Suzuki four-stroke outboards and Suzuki-manufactured Johnson four-stroke engines.

Suzuki part number 13840-90J00 and Johnson/BRP part number 5033696 identify the same OEM silencer duct.

The duct attaches to the main air-silencer assembly and directs incoming air into the silencer chamber while helping reduce intake noise and shield the intake from direct spray.

⚙️ Key Features

• Genuine Suzuki or Johnson used silencer duct
• Suzuki OEM number 13840-90J00
• Johnson / BRP number 5033696
• Exact cross-brand OEM interchange
• Used with silencer 13810-90J01 / 5033694
• Suitable for selected DF90-DF140 four-stroke engines
• Original moulded Suzuki intake component

🚤 Compatibility

Commonly used on selected

• Suzuki DF90
• Suzuki DF100
• Suzuki DF115
• Suzuki DF140
• Johnson 90HP four-stroke
• Johnson 100HP four-stroke
• Johnson 115HP four-stroke
• Johnson 140HP four-stroke
• Suzuki-built Johnson inline four-cylinder outboards

Representative application period

• Suzuki DF90, DF115 and DF140 applications from approximately 2001 onward
• Johnson four-stroke applications from approximately 2003-2006
• Later DF100A, DF115A and DF140A diagrams can also list 13840-90J00

Important fitment note

• Confirm the duct shape, grommet position and attachment point.
• The duct is not the complete air-silencer assembly.
• Grommet 13851-90J00 / 5033697 and mounting hardware are separate unless shown.
• Intake layouts can vary according to market and engine-cover design.

🔌 Function

The duct guides incoming air into the main silencer chamber.

It helps

• Reduce direct intake noise
• Shield the silencer opening from spray
• Maintain the intended airflow path
• Prevent nearby wiring or hoses obstructing the intake
• Support correct engine-cover air circulation
• Connect the outer intake area to the silencer assembly

⚠️ Common Signs of Failure

• Duct is cracked
• Mounting point is broken
• Duct is warped
• Grommet connection is loose
• Duct rubs the engine cover
• Intake opening is obstructed
• Oil or debris accumulates inside the duct
• Increased intake noise is present
• Duct separates from the silencer during operation

🛠️ Service Notes

Recommended checks before installation

• Verify both Suzuki and Johnson numbers
• Inspect the complete duct for cracks
• Check grommet 13851-90J00 / 5033697
• Confirm correct alignment with the engine-cover intake
• Clean internal debris
• Check that wiring and hoses remain clear
• Replace damaged mounting hardware
• Ensure the duct cannot contact moving components
• Confirm the engine cover closes without compressing the duct

🔄 Supersession & Cross Reference

OEM / Related Numbers

• Suzuki: 13840-90J00
• Suzuki: 1384090J00
• Johnson / BRP: 5033696
• Suzuki: 13810-90J01 - Main air silencer
• Johnson / BRP: 5033694 - Silencer assembly
• Suzuki: 13710-99E00 - Flame arrester
• Johnson / BRP: 5031070 - Flame arrester
• Suzuki: 13813-90J01 - Flame-arrester holder
• Johnson / BRP: 5033695 - Holder
• Suzuki: 13851-90J00 - Silencer grommet
• Johnson / BRP: 5033697 - Silencer grommet

Aftermarket / Verified Equivalents

• No aftermarket equivalent

Other-Brand Equivalent

• Johnson / BRP 5033696 is the exact OEM equivalent to Suzuki 13840-90J00

Service alternatives

• Genuine used Suzuki duct
• Genuine used Johnson duct
• New-old-stock Suzuki or BRP duct

📦 Condition

• Genuine Suzuki or Johnson used part
• Pre-owned moulded air-intake component
• Cosmetic marks, fading and intake residue may be present
• Inspect mounting points and duct openings before installation
• Supplied components are limited to those shown or described
• Supplied in protective or equivalent packaging