21XZ-M Inboard Marine
Race-winning performance for inboard modelers!
Based on the race-proven 21XZ-R, the 21XZ-M Inboard Marine delivers the same winning performance for boaters! The crankshaft is silicone-filled for more efficient intake. Also features a water-cooled cylinder head, RP7 Turbo glow plug and more!
Specifications
Displacement: 0.21 cu in (3.5 cc)
Output: 2.75 hp (33,000 rpm)
RPM Range: 4,000-45,000
Bore: 0.640 in (16.27 mm)
Stroke: 0.661 in (16.8 mm)
Requirements: Boat blend glow fuel with 10-30% nitromethane content (use 20% for break-in),
Exhaust system (depending on boat), Glow plug igniter
Please note: because of the competition nature of this engine,
it is not covered by the O.S. 2-year limited warranty.
Tower Hobbies Has Been Serving Hobbyists Since 1971 • Call 800-637-6050 or 217-398-3636
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