MERCURY ProXS V6 3.0L 200-250HP (2003-2018):
200HP ProXS V6 3.0L DFI 2-Stroke (2007-2018)
225HP ProXS/Optimax V6 3.0L DFI (2007-2018)
250HP ProXS/Optimax V6 3.0L DFI (2003-2018)

MERCURY XS V6 3.2L 300HP (2006-2018):
300HP XS V6 3.2L DFI 2-Stroke (2006-2018)

OEM PART NUMBERS:
Mercury Piston: 842986T03 / 2720-842986T03

Mercury ProXS / XS V6 Powerhead Rebuild Kit .030 Over:
Complete powerhead rebuild kit for Mercury ProXS, Optimax, and XS V6 3.0L/3.2L DFI 2-stroke outboard engines. Fits 200-300HP models from 2003-2018. .030" oversize bore 3.655" pistons for significant cylinder reconditioning.

ADDITIONAL FITMENT DETAILS:
Mariner DFI V6 3.0L/3.2L 200-300HP (All Applicable Years)

ADDITIONAL CROSS-REFERENCES:
Type: Powerhead Rebuild Kit
Oversize: .030 Over
Standard Bore: 3.6265"
Finished Bore: 3.655"
Configuration: V6 2-Stroke DFI
Fuel Delivery: DFI / Optimax / ProXS / XS Direct Injection
Kit Includes: 6 Pistons w/Rings, Pins, Clips, Gasket Kit, Bearings, Rod Bolts

⚠️ IMPORTANT: Verify OEM part number before ordering to ensure proper fitment.