Compact 40 mm Propeller for Outboard Motors — 2 mm Shaft Hole, 3 g Key benefits Direct replacement: Fits outboard motors with a 2 mm shaft hole for quick, no-fuss swaps. Lightweight and responsive: At just 3 g, the propeller reduces inertia for quicker throttle response and improved handling on small craft. Durable construction: Made from a robust material to resist wear and extend service life under normal use. What it does and why you need it Restores propulsion performance on small outboard-driven craft by replacing worn or damaged propellers. Small diameter and light weight make it ideal where space and balance matter, helping maintain efficient operation without adding unnecessary mass. Simple compatibility (2 mm shaft hole) minimizes setup time and the need for custom adapters. Key specifications Propeller diameter: approximately 40 mm (1.57 in) Shaft hole diameter: approximately 2 mm (0.08 in) Net weight: 3 g Material: durable, wear-resistant construction (as supplied) Practical applications RC model boats: Quick spare or upgrade for hobbyist electric or small gas-powered models with a 2 mm shaft. Repairs and maintenance: Replace a stripped or damaged propeller on small outboard assemblies used for testing, prototyping, or light-duty operation. Educational and prototype projects: Use in small-scale propulsion experiments where precise, lightweight components are required. Why this propeller stands out Exact-fit compatibility for shafts of 2 mm reduces the need for modifications. Compact 40 mm size tailored to small craft and model applications where balance, control, and low mass are priorities. Durable build designed to provide reliable performance over many cycles of use. Basic installation tips Confirm your motor shaft measures 2 mm before installation. Ensure the propeller is seated fully and secured according to your motor’s retaining method to avoid slippage. Inspect for nicks or deformation before use to maintain smooth operation. If you need a straightforward, durable replacement propeller for small outboard applications, this 40 mm, 2 mm-shaft propeller offers a precise, lightweight solution.