Up for sale is a genuine original factory OEM High-Performance Crankshaft Assembly, engineered specifically for Mercury Racing 3.2L DFI outboard powerheads.
This is the heavy-duty stroker crankshaft configuration vital for the precision tolerances required by the XS racing blocks.
Part Numbers:
- Factory Assembly Part Number: 842753A04 (Also cataloged as 482-842753A04)
--- ENGINE FITMENT & INTERCHANGE YEARS ---
This crankshaft is a direct factory match for the following high-performance Mercury Racing outboard model lines:
- Mercury Racing 300XS OptiMax (3.2L DFI V6 Models): Model Years 2006 to 2018
- Mercury Racing 250XS OptiMax (Select 3.2L Stroke Variations): Model Years 2006 to 2018
*Please note: This shaft fits the specific 3.2L racing blocks and does not swap into standard 3.0L OptiMax or Pro XS engines. Please cross-reference your engine serial number prefix to guarantee exact fitment before purchasing.*
Condition & Seller Notes:
In perfect condition! This crankshaft is a pristine, 100% FRESHWATER take-off. It was pulled directly from a flawless running motor that had under 400 original hours on it. It has been stored safely in a clean, dry, climate-controlled environment. All main and rod journals are immaculate with no scoring, rusting, or saltwater degradation whatsoever.
Because this is an elite racing engine component capable of high RPM limits, we always recommend having a qualified marine technician or machine shop clean and verify tolerances before final assembly. Sold exactly as pictured.
Insured freight or heavy-parcel secure shipping wrapper will be used. Please examine all high-resolution photos carefully to confirm it fits your specific high-performance application!
Location climate controlled TL200