• 864592T1 Mercury MerCruiser Thermostat Housing Assembly | Genuine Quicksilver OEM Part
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864592T1 Mercury MerCruiser Thermostat Housing Assembly | Genuine Quicksilver OEM Part

864592T1 Mercury MerCruiser Thermostat Housing Assembly | Genuine Quicksilver OEM Part

$667.20 AUD
$667.20 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

Genuine Quicksilver Thermostat Housing Assembly - Part Number: 864592T1

A genuine Quicksilver thermostat housing assembly for selected MerCruiser V6 and V8 MPI engines with dry-joint exhaust and 7-point drain cooling systems. This housing forms the central coolant distribution point for thermostat, drain and cooling hose connections.

⚙️ Key Features

  • Genuine Quicksilver OEM thermostat housing assembly
  • Correct Mercury part number 864592T1
  • Used on MerCruiser V6 and V8 MPI engines with dry-joint exhaust
  • Designed for 7-point drain cooling-system layouts
  • Direct service replacement for the specified factory thermostat housing

🚤 Compatibility

Commonly used on

  • MerCruiser MPI dry-joint cooling systems with 7-point drain layout

Typically suits

  • Engine models:
  • MerCruiser 4.3L MPI V6 with dry-joint exhaust and 7-point drain cooling system
  • MerCruiser 5.0L MPI V8 with dry-joint exhaust and 7-point drain cooling system
  • MerCruiser 5.7L MPI V8 with dry-joint exhaust and 7-point drain cooling system
  • MerCruiser 350 MAG MPI dry-joint exhaust applications using thermostat housing 864592T1
  • MerCruiser 6.2L MPI V8 with dry-joint exhaust and 7-point drain cooling system
  • MerCruiser V6 / V8 MPI engine packages where thermostat housing 864592T1 is specified
  • Engine Type: MerCruiser petrol V6 / V8 MPI
  • System Type: Thermostat housing / 7-point drain cooling assembly
  • Exhaust Type: Dry-joint exhaust configuration

🔌 Function

The thermostat housing holds the thermostat and routes cooling water through the engine, exhaust and drain system according to engine temperature and cooling-system demand.

⚠️ Common Signs of Failure

  • Cooling water leakage around housing
  • Cracked or corroded housing
  • Overheating or poor coolant flow
  • Drain system leak or blocked drain connection
  • Thermostat sealing issue at the housing

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 864592T1 current OEM thermostat housing reference
  • 864592T related OEM reference

OEM / Related Numbers

  • 864592T1
  • 864592T
  • 864592-C related aftermarket casting reference
  • 129170-13000 related aftermarket reference
  • 8M0109441 related thermostat reference
  • 27-806871 related gasket reference
  • 23-806922 related sleeve reference

Aftermarket / Verified Equivalents

  • Recmar: REC864592T1
  • No additional aftermarket equivalent

📦 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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