8m0188327 Mercury MerCruiser 36865448A01 Cap Oil Reservoir | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Trim Pump Oil Reservoir Cap - Part Number: 36-8M0188327

Genuine Quicksilver yellow oil reservoir cap used on MerCruiser power trim pump reservoir bottles. This cap is the current replacement for earlier 36-865448A01 and is supplied as the cap only for compatible MerCruiser trim pump reservoirs.

⚙️ Key Features

• Genuine Quicksilver OEM trim pump reservoir cap

• Correct current Mercury part number 36-8M0188327

• Supersedes 36-865448A01

• Yellow reservoir cap for easy service identification

• Used on MerCruiser power trim pump oil reservoirs

• Cap only; reservoir bottle not included

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 36-8M0188327 → Supersedes 36-865448A01

• 36-865448A01 earlier OEM oil reservoir cap reference

OEM / Related Numbers:

• 36-8M0188327

• 8M0188327

• 368M0188327

• 36-865448A01

• 865448A01

• 36865448A01

• Yellow trim pump cap

• Power trim oil reservoir cap

• Trim pump reservoir bottle cap

• 8M0188326 related reservoir bottle family reference where specified

• 891736A01 related power trim pump family reference

Aftermarket / Verified Equivalents:

• Recmar-style replacement trim reservoir caps for 36-865448A01 / 36-8M0188327 applications

• Aftermarket yellow MerCruiser trim pump reservoir cap equivalents where matched to 36-865448A01

• Use only caps with the correct thread and vent / seal design for the reservoir bottle

🚤 Compatibility

Commonly used on:

• MerCruiser power trim pump oil reservoir bottles

• Alpha and Bravo trim pump assemblies using the yellow reservoir cap

• Trim pump service where cap 36-865448A01 / 36-8M0188327 is specified

Typically suits:

• Drive / transom models:

• MerCruiser Alpha One Gen II power trim pump applications where 36-8M0188327 is specified

• MerCruiser Bravo One power trim pump applications where specified

• MerCruiser Bravo Two power trim pump applications where specified

• MerCruiser Bravo Three power trim pump applications where specified

• MerCruiser Bravo X / XR / XZ trim pump systems where specified

• MerCruiser standard black plastic trim pump reservoir bottle assemblies using the yellow cap

• Common Serial Families:

• MerCruiser Alpha One Gen II - serial 0D469859 and up where the trim pump reservoir diagram lists this cap

• MerCruiser Bravo Drives - serial 0B664190 and up where the trim pump reservoir uses cap 36-865448A01 / 36-8M0188327

• MerCruiser Bravo SeaCore and later trim pump assemblies where this cap is specified

• Drive Type: MerCruiser Alpha / Bravo trim pump systems where specified

• System Type: Power trim oil reservoir cap

🔌 Function

The cap closes the trim pump oil reservoir and helps protect the trim fluid from contamination while allowing the reservoir to function as designed.

Common signs of failure:

• Cap cracked, missing or loose

• Trim fluid contamination around reservoir

• Oil seepage from reservoir opening

• Cap threads damaged

• Old cap not sealing correctly

• Replacement required during trim pump service

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging