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41505A1 Mercruiser Side Cover | Genuine Used Part

41505A1 Mercruiser Side Cover | Genuine Used Part

$55.00 AUD
$55.00 AUD
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Low stock: 1 left

🔧 Product Description

Genuine MerCruiser 3.7L Engine-Block Side Cover - Part Number: 41505A1

A genuine used aluminium block side cover for the MerCruiser 3.7L / 224 CID inline-four engine family. The cover closes the large inspection opening in the side of the unique MerCruiser block. Part number 41505A1 supersedes earlier cover 68711 and uses side-cover gasket 72479A5.

⚙️ Key Features

  • Genuine Mercury MerCruiser side cover
  • Correct part number 41505A1
  • Supersedes earlier 68711 cover
  • Used on 3.7L / 224 CID inline-four engines
  • Matches gasket 72479A5

🚤 Compatibility

Commonly used on

  • MerCruiser 470-family inline-four engines
  • MerCruiser 165HP, 170HP, 180HP and 190HP variants
  • MerCruiser 485, 488, 3.7L and 3.7LX engines

Typically suits

  • 470 two-barrel and four-barrel engines
  • 165 / 170 / 180 / 190 model families
  • 485 and 488
  • Approximately 1976-1989 production
  • These engines share the MerCruiser-designed 224 CID block
  • Engine Size: 3.7L / 224 CID inline-four
  • Year Range: Approximately 1976-1989
  • Supersedes: 68711
  • Gasket: 72479A5 / earlier 68706
  • Fitment Requirement: Inspect the cover for warping and electrolysis before reuse

🔌 Function

The side cover seals the block inspection cavity and keeps engine oil inside while allowing access during major engine service.

⚠️ Common Signs of Failure

  • Oil leaking from the side-cover gasket
  • Cover warped from overtightening
  • Corrosion or pinholes
  • Damaged screw holes
  • Hardened screw O-rings

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 41505A1 supersedes 68711
  • The cover is discontinued as a current new-production part
  • Earlier diagrams may list gasket 68706 while later service uses 72479A5

OEM / Related Numbers

  • 41505A1
  • 41505
  • 68711
  • 72479A5 side-cover gasket
  • 68706 earlier gasket reference
  • 881892 side-cover screw
  • 26543 screw O-ring

Aftermarket / Verified Equivalents

  • No verified new aftermarket aluminium cover
  • Used genuine 41505A1 / 68711 covers
  • Aftermarket side-cover gasket sets based on 72479A5
  • Custom-machined replacement only when dimensions and sealing are reproduced exactly
  • Used complete 3.7L block assemblies as donor sources

📦 Condition

  • Genuine used part
  • Removed from running engine or vessel where applicable
  • In good working condition unless otherwise stated
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