Aftermarket 3.0L Marine Cylinder Head 8M0188300 3854012
RM3.0CH
- Dispatched in 2-3 days
- 30 Day Return Policy
- In stock, ready to ship
- Backordered, shipping soon
New aftermarket cylinder head for selected 1991-on GM-based 3.0 L / 181 cu in marine petrol engines used by MerCruiser, Volvo Penta and OMC. The supplier specifies the later small-port design supplied with valves and springs installed.
Key Features
- New aftermarket small-port marine cylinder head
- Cast-iron construction
- Supplied assembled with valves and springs
- Replacement for the listed MerCruiser and Volvo Penta references
- For compatible 1991-on 3.0 L applications
Technical Specs
- Engine displacement: 3.0 L / 181 cu in
- Configuration: inline four cylinder
- Fuel: petrol
- Port design: later small port
- Material: cast iron
- Included: valves and valve springs
- Supplier SKU: RM3.0CH
Compatibility / Fitment Guide
Specified for selected 1991-on GM 3.0 L marine engines, including MerCruiser 3.0L, 3.0LX and 3.0L TKS and Volvo Penta 3.0GL and 3.0GS applications using the matching small-port head. OMC applications may also use the same casting family. Confirm engine serial number, casting/part number, port shape, head-bolt pattern and manifold compatibility before purchase.
Part Number Cross Reference
- MerCruiser: 8M0188300
- MerCruiser: 936-810849
- Volvo Penta: 3854012
- Supplier SKU: RM3.0CH
Frequently Asked Questions
Is this a genuine MerCruiser or Volvo Penta head?
No. It is a new aftermarket marine replacement.
Are valves and springs included?
Yes. The supplier states that the head is supplied with valves and springs.
Are rockers, pushrods and gaskets included?
They are not stated as included; reuse or order the correct service parts as required.
Will it fit a pre-1991 engine?
Not as a direct confirmed replacement. Earlier engines may use a different port/manifold configuration.
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