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Complete the Cylinder-Head Repair with the Correct Marine Gasket Set
MAHLE Original HS5719 is a manufacturer-cataloged cylinder-head gasket set for Chevrolet 181 CID 3.0L marine inline-four engines through serial number 6229717. It brings the upper-engine seals required for cylinder-head removal and replacement into one application-specific package, helping technicians avoid mixing automotive and marine configurations.
Key Features
- Exact HS5719 application for the early Chevrolet 181 CID 3.0L marine engine serial range
- MAHLE Original sealing components manufactured to OE-equivalent material and fit standards
- Composite head-gasket construction listed for regular replacement service
- Head-set coverage intended for cylinder-head removal and installation
- Shrink-wrapped tray packaging helps confirm contents before the package is opened
- Cataloged for marine service rather than broad automotive fitment
Fitment
| Application | Engine | Serial Range |
|---|---|---|
| Chevrolet marine engine | 181 CID / 3.0L inline-four | Through 6229717 |
Confirm the engine serial number before ordering. Engines beginning with serial number 6229718 use a later-serial configuration.
Specifications
| Detail | Value |
|---|---|
| Brand | MAHLE Original / Victor Reinz |
| Manufacturer Part Number | HS5719 |
| UPC | 725975461495 |
| Product Type | Cylinder-head gasket set |
| Gasket Material | Composite |
| Grade | Regular replacement |
| Engine Bore | 4.000 inches / 101.6 mm |
| Condition | New |
What's Included
- One MAHLE Original HS5719 cylinder-head gasket set
- Upper-engine gaskets and seals packaged for cylinder-head removal and replacement
- Water-cooled manifold sealing components listed for this catalog configuration
A thermostat-housing gasket set and lower-engine conversion-set components are not represented as included. Inspect the sealed package and current service requirements before disassembly.
About MAHLE Original
MAHLE Original supplies engine sealing components developed around application-specific dimensions, materials, and service requirements. The North American gasket line carries the sealing heritage historically associated with Victor Reinz, so exact part-number and engine-serial verification remain essential.
Related Parts
- MAHLE Original Chevrolet 3.0L marine head set for later engine serials - use only for the later manufacturer-cataloged serial range beginning at 6229718.
FAQ
What is the HS5719?It is a MAHLE Original cylinder-head gasket set cataloged for the Chevrolet 181 CID 3.0L marine inline-four through engine serial number 6229717.
Will this fit every Chevrolet 3.0L marine engine?No. The engine family and serial number must both match the manufacturer catalog before ordering.
Is this an automotive head-gasket set?No. This listing is for a marine-engine application and should not be selected from visual similarity alone.
Does the set include lower-engine gaskets?No. This is a cylinder-head service set, not a complete engine overhaul or conversion set.
Is a thermostat-housing gasket included?The thermostat-housing gasket set is treated as a separate service item and should be ordered for the exact engine configuration when required.
What should be checked before installation?Confirm deck and cylinder-head flatness, surface condition, fastener requirements, coolant and oil sealing locations, and the current marine-engine service procedure.
Can the package be opened to check the contents?Compare the visible tray contents with the current service requirements before opening, because opened gasket packages may not qualify for return.
Does the listing guarantee compatibility by engine displacement alone?No. A 3.0L designation alone is not sufficient; the Chevrolet 181 CID engine family and serial range must match.
Installation Instructions
- Verify HS5719 against the engine identification and serial number before disassembly.
- Disconnect battery power and drain coolant according to the marine-engine service manual.
- Remove the cylinder head and related manifolds while labeling hoses, wiring, and fasteners.
- Clean sealing surfaces without removing material or leaving abrasive residue in oil or coolant passages.
- Inspect deck and cylinder-head flatness and replace any one-time-use fasteners specified by the manufacturer.
- Install each gasket dry or with the specified sealant only where the service manual directs.
- Tighten fasteners in the prescribed sequence and to the current torque and angle specifications.
- Refill and bleed the cooling system, then check for coolant, oil, intake, and exhaust leaks before operation.
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