278031484 Mercury MerCruiser Gasket Set Intake | Genuine Quicksilver OEM Part
278031484 Mercury MerCruiser Gasket Set Intake | Genuine Quicksilver OEM Part
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🔧 Product Description
Genuine Quicksilver Intake Gasket Set - Part Number: 27-803184
A genuine Quicksilver intake gasket set for MerCruiser GM 7.4L MPI Gen VI 454 CID V8 engines. This gasket set seals the intake manifold to the cylinder heads and is used during intake manifold removal, resealing or top-end service.
⚙️ Key Features
- Genuine Quicksilver OEM intake gasket set
- Correct Mercury part number 27-803184
- Intake manifold gasket set for MerCruiser 7.4L MPI Gen VI GM 454 V8 engines
- Helps seal intake ports and coolant / air passages as designed by the manifold layout
- Important replacement set during intake manifold service
🚤 Compatibility
Commonly used on
- MerCruiser 7.4L MPI Gen VI GM 454 CID V8 intake manifold gasket applications
- MerCruiser sterndrive and inboard big block V8 top-end service where 27-803184 is specified
Typically suits
- Engine models:
- MerCruiser 7.4L MPI MIE L29 Gen VI GM 454 V8 - 1998-2000, serial 0L002006 to 0L674613
- MerCruiser 7.4L Bravo MPI Gen VI GM 454 V8 - 1998-2000, serial 0L010003 to 0M024330
- Engine Type: MerCruiser GM big block V8 petrol inboard and sterndrive
- CID / Litre Range: 454 CID / 7.4L
- System Type: Intake manifold gasket set
🔌 Function
The intake gasket set seals the intake manifold to the cylinder heads, helping prevent intake air leaks, fuel-air mixture imbalance and coolant or vacuum leakage at the manifold joint.
⚠️ Common Signs of Failure
- Vacuum leak or rough idle
- Lean running condition
- Coolant seepage near intake manifold
- Poor running after intake removal
- Gasket replacement required during manifold service
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 27-803184 → Supersedes 27-802567
- 27-802567 earlier OEM intake gasket set reference
OEM / Related Numbers
- 27-803184
- 803184
- 27803184
- 278031484
- 27-802567
- 802567
Aftermarket / Verified Equivalents
- Recmar: REC27-803184
📦 Condition
- Genuine Quicksilver part
- Brand new
- Supplied in original or equivalent packaging
Shipping & Delivery
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
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?
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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