Inner & Outer Exhaust Gasket Set for Yamaha 40 HP & 50 HP Outboards

Premium-quality aftermarket inner and outer exhaust cover gasket set for selected Yamaha 40 HP and 50 HP 3-cylinder 2-stroke outboard engines.

The set contains both gaskets required for the corresponding exhaust cover assembly:

1 x Exhaust Inner Cover Gasket
1 x Exhaust Outer Cover Gasket

Yamaha identifies 6H4-41112-A0 as the Gasket, Exhaust Inner Cover and 6H4-41114-A0 as the Gasket, Exhaust Outer Cover.

Fits Selected Yamaha Outboards

40 HP – 2 Stroke

Selected models including:

40H
40V
40Y

50 HP – 2 Stroke

Selected models including:

50D
50H

Engine Type

40 HP
50 HP
2 Stroke
3 Cylinder
Selected Yamaha 6H4-family applications

The 6H4-41112-A0 inner gasket is specifically cross-referenced to Yamaha 40H, 40V, 40Y, 50D and 50H applications.

Set Contains

1 x Inner Exhaust Cover Gasket

Replaces:

6H4-41112-A0
6H4-41112-A0-00
6H441112A0
6H441112A000

1 x Outer Exhaust Cover Gasket

Replaces:

6H4-41114-A0
6H4-41114-A0-00
6H441114A0
6H441114A000

OEM part numbers are used for identification and reference purposes only.

Product Features

Complete inner & outer exhaust gasket set
Contains 2 gaskets
For selected Yamaha outboard engines
40 HP
50 HP
2 Stroke
Selected 3-cylinder applications
Inner exhaust cover gasket
Outer exhaust cover gasket
Marine-grade quality aftermarket parts
Manufactured to OEM specifications
Direct replacements for the corresponding OEM applications
New replacement parts

Important – Two Different Exhaust Gaskets

This set contains both exhaust cover gaskets:

INNER: 6H4-41112-A0
OUTER: 6H4-41114-A0

Yamaha parts diagrams show these as two separate components in the exhaust cover assembly.

This makes the set useful when removing the exhaust cover for servicing or repair, as both corresponding gaskets can be replaced at the same time.

Important – Please Check Compatibility

Please do not order by horsepower or appearance alone.

Not every Yamaha 40 HP or 50 HP 2-stroke uses these particular exhaust gaskets.

Before purchasing, please check:

Engine is Yamaha
Engine is 2 Stroke
Engine horsepower
Exact engine model
Engine serial number
Existing gasket shape
Original Yamaha part numbers

For the safest identification, check that your engine requires:

6H4-41112-A0 + 6H4-41114-A0

If the gaskets look the same as yours, this does not always mean they are the correct ones for your outboard.

If you are unsure, please send us your engine model and serial number before purchasing and our technical team will be happy to check compatibility.

Why Buy From SSI Marine?

Marine-grade aftermarket & OEM-spec parts
Workshop-tested products
More than 10 years supplying outboard parts
UK stock
Same working day dispatch before 1 PM Monday–Friday
Royal Mail Tracked 24
Technical support from experienced outboard specialists
Collection available from Leigh, Greater Manchester

Yamaha Outboard 40 HP 50 HP 2 Stroke Inner Outer Exhaust Gasket Set 6H4-41112-A0 6H4-41114-A0