Volvo Penta DPX Type E Duoprop Front Propeller Nut 3851335

Volvo Penta 3851335 is a genuine OEM propeller nut used in select Volvo Penta Duoprop sterndrive applications. Current parts references consistently identify it as the front propeller nut used with Volvo Penta Type E / DPX high-speed drive propeller hardware, and specialty propeller sources also tie it to Volvo “F” series front propeller applications.

Key Features

• Genuine Volvo Penta OEM part number 3851335.
• Identified in Volvo Penta propeller guide references as the front propeller nut for Type E / DPX drive installation hardware.
• Specialty propeller references also list it as the front propeller nut for Volvo “F” series propellers.
• Current aftermarket reference material shows 3851569 as a replacement-related number tied to this front prop nut application.
• Dealer weight references list it at approximately 0.088 kg, while some storefronts show shipping-weight style values closer to 1 lb.

Engine Compatibility

The strongest supportable fitment for 3851335 is by drive and propeller family rather than by engine long-block. Current Volvo Penta propeller guide references place it as the front propeller nut for Type E / DPX Duoprop hardware, and specialty propeller sources also connect it to Volvo F-series Duo Prop hardware. Because propeller hardware can vary by drive family, propeller series, and front-versus-rear position, the safest fitment path is to match this nut to the exact Volvo Penta propeller hardware diagram and drive application before ordering.

Serial Number Fitment Notice

Match Volvo Penta part number 3851335 to your drive serial number and the correct Volvo Penta propeller hardware diagram before ordering. Front and rear Duoprop hardware can differ even within closely related setups, so exact application matters more than a visual size match.

When This Part Needs Replacement

This propeller nut should be replaced when threads are damaged, the nut shows corrosion or deformation, or when removal during propeller service reveals wear at the seating or locking surfaces. It is also smart to inspect it anytime the front propeller is already off, since worn prop hardware can create repeat labor or retention issues. This service guidance is an inference based on the part being identified as the front propeller retaining nut in Duoprop hardware references.

Installation Notes

Confirm the exact application before installation, and compare the removed nut carefully against the replacement part, especially if the drive may have mixed or older propeller hardware. Current Volvo Penta guide references also show related installation hardware including rear propeller nut 872179, lock screw 872546, and tool 885195 in the same Type E / DPX hardware set. Always follow the correct Volvo Penta service procedure and torque method for the specific drive.

Alternate/Superseded Part Numbers

Current specialty propeller references show 3851569 as a replacement-related number tied to 3851335. The reviewed sources continue to list 3851335 as an active Volvo Penta OEM number in current dealer catalogs.

Parts Desk Insight

With Duoprop hardware like this, the easy mistake is assuming the front and rear prop nuts are interchangeable. Matching the exact drive family and prop position first usually saves a lot of hassle, especially on older Volvo Penta Duo Prop setups where hardware can look close at a glance but serves a specific location.

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