1263-812718t1 Mercury MerCruiser Oil Bottle | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Oil Tank Assembly - Part Number: 1263-812718T1

A genuine Quicksilver oil tank assembly used on Mercury and Mariner 3-cylinder 2-stroke oil-injection outboards and selected Jet models. This tank replaces earlier 812718A1-style oil tanks and is used on 40 Jet, 45 Jet, 55HP, 60HP and 60 BigFoot applications where the oil injection components diagram specifies 1263-812718T1.

⚙️ Key Features

• Genuine Quicksilver OEM oil tank assembly

• Correct Mercury part number 1263-812718T1

• Supersedes earlier 1263-812718A1 / 812718A1 references

• Used on 40 Jet, 45 Jet, 55HP, 60HP and 60 BigFoot 3-cylinder oil-injection models

• Works with the matching oil tank cap, vent, grommet, boot and level switch components

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 1263-812718T1 → Supersedes 1263-812718A1

• 1263-812718A1 earlier OEM oil tank assembly reference

• 1263-8127181 earlier formatted oil tank reference

OEM / Related Numbers:

• 1263-812718T1

• 812718T1

• 1263812718T1

• 1263-812718T 1

• 1263-812718A1

• 812718A1

• 1263-812718A 1

• 812718

• 8127181

• 36-828765A2 related oil tank cap assembly

• 8M0039080 related cap / tank seal

• 19299A1 related vent assembly

• 21-64871 related valve

• 25-813644002 related grommet

• 99162001 related boot

• 8M0039085 related boot

• 87-12886A6 related switch assembly

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Mercury / Mariner 3-cylinder 2-stroke oil injection systems

• Mercury / Mariner Jet oil injection systems

• Under-cowl oil tank assemblies for 40HP to 60HP 2-stroke applications

Typically suits:

• Engine models:

• Mercury 40 Jet 2-stroke - serial 0T178500 to 0T979999

• Mercury 40 Jet 2-stroke - serial 0T980000 and up

• Mercury 45 Jet 2-stroke - serial 0G760300 to 0T129554

• Mercury 45 Jet 2-stroke Belgium-built - serial 0P017000 to 0P094499

• Mercury 55HP 3-cylinder 2-stroke - serial 0G760300 to 0T979999

• Mercury 55HP 3-cylinder 2-stroke - serial 0T980000 and up

• Mercury 55HP 3-cylinder Belgium-built - serial 0P017000 to 0P325499

• Mercury 60HP 3-cylinder 2-stroke - serial 0G760300 to 0T979999

• Mercury 60HP 3-cylinder 2-stroke - serial 0T980000 and up

• Mercury 60HP 3-cylinder Belgium-built - serial 0P017000 to 0P325499

• Mercury 60HP 3-cylinder Belgium-built - serial 0P325500 and up

• Mercury 60HP BigFoot 3-cylinder 2-stroke - serial 0G760300 to 0T979999

• Mercury 60HP BigFoot 3-cylinder 2-stroke - serial 0T980000 and up

• Mercury 60HP BigFoot Belgium-built - serial 0P017000 to 0P325499

• Mariner 55HP 3-cylinder 2-stroke - serial 0T980000 and up

• Mariner 60HP 3-cylinder 2-stroke - serial 0P017000 to 0P325499

• Mariner 60HP 3-cylinder 2-stroke - serial 0P325500 and up

• HP Range: commonly 40 Jet, 45 Jet, 55HP and 60HP

• Engine Type: Mercury / Mariner 3-cylinder 2-stroke oil-injected outboard

• System Type: Oil injection tank assembly

🔌 Function

The oil tank stores 2-stroke oil under the engine cowl and supplies the oil injection pump. It also supports the cap, vent and level switch components required for oil storage and warning-system operation.

Common signs of failure:

• Oil leaking from tank body, grommet or cap area

• Low-oil warning caused by tank / switch fault

• Cracked or sun-brittle tank body

• Loose or damaged tank mounting points

• Oil contamination or sludge inside the tank

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging