This 12V 65A alternator is supplied by Recmar as a replacement unit for MerCruiser/Mercury applications that cross-reference OEM part number 807653T. It is specified for MerCruiser Cummins Diesel EI/ES 165, 250 & 300 engines (2.8L & 4.2L) and features a 6-groove serpentine pulley and internal regulator.

Before ordering, confirm the OEM number on your existing alternator and match belt/pulley style. Fitment can vary by engine package and serial number.

• Part: Alternator
• Voltage / Output: 12V / 65A
• Regulator: Internal
• Pulley: 6-groove serpentine (approx. 50 mm)
• Primary fitment (per supplier): MerCruiser Cummins Diesel EI 165, 250, 300 & ES 165, 250, 300 (2.8L & 4.2L)
• OEM cross-references: MerCruiser/Mercury 807653T (also referenced as 807653, 807653F2, 807653R01)
• Aftermarket reference: Recmar REC807653T
• Notes: OEM 807653T is also commonly listed for select GM-based MerCruiser V6/V8 EFI engines with a serpentine belt; verify by exact part number and your engine documentation.

Compatibility notice: Always confirm fitment by engine model/serial number and the reference number on the alternator being replaced before purchase.