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

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

$15.30 AUD
$15.30 AUD
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🔧 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

🚤 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

🔄 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

📦 Condition

  • Genuine Quicksilver part
  • Brand new
  • Supplied in original or equivalent packaging

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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