• 98618A1 Mercruiser Heat Exchanger Bracket (Set) | Genuine Used Part
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98618A1 Mercruiser Heat Exchanger Bracket (Set) | Genuine Used Part

98618A1 Mercruiser Heat Exchanger Bracket (Set) | Genuine Used Part

$50.00 AUD
$50.00 AUD
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🔧 Product Description

Genuine MerCruiser 470 3.7L Heat-Exchanger Mounting Bracket Set - Part Number: 98618A1

A genuine used MerCruiser heat-exchanger mounting-bracket set for Mercury's 224 CID inline-four 470-series petrol engines.

The bracket assembly supports and positions the engine heat exchanger, maintaining clearance from the exhaust, belts and surrounding engine components.

⚙️ Key Features

  • Genuine used MerCruiser heat-exchanger bracket set
  • Current OEM assembly number 98618A1
  • Supersedes 91907A1 and 77226
  • Designed for Mercury 224 CID inline-four engines
  • Supplied as the bracket set shown

🚤 Compatibility

Published MerCruiser applications include

  • 470 2 BBL, 1976-1979: 4208730-5520114
  • 470 2 BBL, 1980-1982: 5520115-6218036
  • 470, 1983-1984: 6218037-6916778
  • 470 MIE, 1980-1981: 5520115-6218036
  • 485 2 BBL, 1980-1982: 5685394-6218036
  • 170 2 BBL, 1985-1986: 6916779-0B434940
  • 165 2 BBL, 1987: 0B434941-0B774251
  • 190 4 BBL, 1985-1986: 6916779-0B436390
  • 180 4 BBL, 1987: 0B436391-0B775248
  • 3.7L 2 BBL, 1988-1989: 0B774252 and above
  • 3.7LX 4 BBL, 1988-1989: 0B775249 and above
  • Engine Type: Mercury-designed inline four-cylinder petrol engine
  • Engine Capacity: 224 CID / 3.7L

🔌 Function

The brackets support the heat exchanger and maintain the correct position for cooling hoses, mounting cushions and service access.

⚠️ Common Signs of Failure

  • Brackets are cracked or bent
  • Heat exchanger vibrates
  • Mounting holes are enlarged
  • Cooler contacts the engine or exhaust
  • Hose connections are placed under strain
  • Corrosion weakens the bracket
  • Retaining hardware repeatedly loosens

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 98618A1 → Supersedes 91907A1
  • 91907A1 → Supersedes or incorporates earlier bracket reference 77226

OEM / Related Numbers

  • 98618A1
  • 91907A1
  • 77226
  • Related heat exchanger, mounting cushions and retaining straps
  • Related cooling hoses, clamps and mounting bolts

Aftermarket / Verified Equivalents

  • No aftermarket equivalent

📦 Condition

  • Supplied as a set where shown
  • Genuine used part
  • Removed from running engine where applicable
  • In good working condition unless otherwise stated

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 the condition you received it for a refund or exchange. 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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