• 3C8650183 Tohatsu Marine Gasket | Genuine OEM Outboard Part
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3C8650183 Tohatsu Marine Gasket | Genuine OEM Outboard Part

3C8650183 Tohatsu Marine Gasket | Genuine OEM Outboard Part

$8.40 AUD
$8.40 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

Genuine Tohatsu / Nissan Water Pump Case Gasket - Part Number: 3C8-65018-3

A genuine Tohatsu/Nissan water-pump case gasket for the three-cylinder 40 HP and 50 HP pump assembly. The compact service number 3C8650183 corresponds to OEM part 3C8-65018-3 and supersedes earlier gasket revisions.

⚙️ Key Features

  • Genuine Tohatsu/Nissan formed pump-case gasket
  • Seals the pump liner/housing assembly to the lower-unit surface
  • Correct coolant-port and bolt-hole alignment
  • Single-use gasket recommended whenever the pump assembly is removed

🚤 Compatibility

Commonly used on

  • Tohatsu M40D and M40D2
  • Tohatsu M50D and M50D2
  • Nissan NS40D2 and NS50D2
  • Selected MD40/MD50 or Tohatsu-built Mercury/Mariner pump assemblies only where 3C8-65018-3 is specified

Typically suits

  • HP Range: 40-50 HP
  • Engine / System Type: Three-cylinder two-stroke/TLDI lower-unit water pump, application dependent
  • Year Range: Approximately 2002 onward, pump revision dependent
  • Serial / Identification Range: Confirm the pump housing and gasket profile. Earlier and later 3C8/3T5 pump housings can require different matched liners and gaskets.

🔌 Function

Seals the water-pump case to prevent cooling-water pressure loss around the pump base.

⚠️ Common Signs of Failure

  • Water leakage around the pump case
  • Weak pump output after reassembly
  • Gasket is torn, compressed or stuck to the housing
  • Corrosion or scoring is present on the gasket surface

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 3C8-65018-3 / 3C8650183M → current gasket reference
  • 3C8-65018-2 → preceding revision
  • 3C8-65018-1 / 3C8650181M → earlier gasket superseded to 3C8650183M

OEM / Related Numbers

  • 3C8650183
  • 3C8650183M
  • 3C8-65018-3
  • 3C8-65018-2
  • 3C8-65018-1
  • 3C8650181M

Aftermarket / Verified Equivalents

  • Aftermarket 3C8-65018-3 pump-case gasket
  • Mercury cross-reference family: 27-16158-3 on applicable Tohatsu-built engines

📦 Condition

  • Genuine Tohatsu / Nissan OEM gasket, brand new.
  • Brand new
  • Supplied in manufacturer or equivalent protective 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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