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Used Volvo Penta DP-SM Duoprop Sterndrive, 1.95:1 Ratio. This Drive has just been Resealed & Checked Out Internally & Filled With 75W/90W Syntehtic Oil. Vaccum & Pressure Tested, Ready to install !!
Volvo Penta DP-SM Duoprop Marine Sterndrive 1.95:1 Ratio
$2,788.00
Used Volvo Penta DP-SM Duoprop Sterndrive, 1.95:1 Ratio. This Drive has just been Resealed & Checked Out Internally & Filled With 75W/90W Syntehtic Oil. Vaccum & Pressure Tested, Ready to install !!
Volvo Penta Duoprop DP-SM 1.95:1 Ratio Marine Sterndrive
The Volvo Penta DP-SM DuoProp Sterndrive with a 1.95:1 gear ratio is a transom-shield mounted twin-propeller outdrive designed for gasoline and diesel marine engines.
SPECIFICATION
Model Series: DP-S / DP-SM
Drive Type: Duoprop (Counter-Rotating Twin Propellers)
Gear Ratio: 1.95:1
Clutch Mechanism: Cone Clutch
Dry Weight (Drive Unit Only): 48 kg (106 lbs)
Dry Weight (Transom Shield SM): 31 kg (68 lbs)
Total System Weight: Approx. 79 kg (174 lbs) excluding power steering ram.
Propeller Shaft Diameter: Standard heavy-duty spline.
Configuration: Counter-rotating (Front prop rotates Right-hand, Rear prop rotates Left-hand).
Propeller Series: Uses the standard Volvo Penta DP-S propeller series
Oil Type: Volvo Penta High Performance Gear Oil (Synthetic SAE 75W/90). Do not use standard automotive gear oil.
Oil Capacity (Drive Unit): Approximately 2.2 Liters (2.3 US Quarts).
Oil Capacity (Transom Shield/Upper Unit): Approximately 0.5 Liters.
Max Input Torque: Rated for high torque output typical of 3.0L – 4.0L diesel blocks.
Steering: Requires Power Steering Ram (Hydraulic).
KEY FEATURES
Duoprop Technology: The twin counter-rotating props eliminate "prop walk" (torque steer), providing superior straight-line tracking, faster planing times, and up to 30% better acceleration compared to single-prop drives.
Cone Clutch: The DP-S uses a mechanical cone clutch for shifting. This provides a positive engagement with minimal slippage, though it requires proper adjustment of the shift cables to prevent "clunking" or wear.
Water Intake: The S-drive has water intakes located on the front and sides of the lower gear housing to supply raw water to the engine cooling system.
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