Product Description
Hardy 1403728 Marquis LWT Trout Regulator Cam
The Hardy 1403728 Marquis LWT Trout Regulator Cam is the internal mechanical heart of the drag adjustment system for the modern Marquis LWT series. This precision-engineered component translates the rotational movement of the external regulator button into vertical pressure against the check spring. By altering the tension on the spring, the cam allows the angler to switch between a light "pay-out" setting and a firm resistance to prevent spool overruns.
Manufactured in Alnwick, England, this cam is designed with a specific taper to provide a smooth, linear increase in drag tension. Replacing a worn or corroded cam is vital for restoring the "fine-tune" capability of your reel, ensuring your drag settings remain consistent and do not slip during a run.
Product Specifications
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Part Name: Regulator Cam / Drag Cam
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Manufacturer Part Number (MPN): 1403728
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Material: High-grade, wear-resistant brass or stainless steel (series dependent) for long-term mechanical reliability.
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Series: Marquis LWT (Lightweight Trout)
Models This Part Fits
The 1403728 Regulator Cam is specifically sized for the trout-sized reels in the Hardy Marquis LWT range. It is a direct OEM fit for:
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Hardy Marquis LWT 4
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Hardy Marquis LWT 5
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Hardy Marquis LWT 6
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Hardy Marquis LWT 7
Technical Note: This cam works in direct contact with the regulator button and the check spring. To ensure the correct orientation during reassembly, please refer to the detailed PDF exploded views available at www.reelschematic.com.
Key Features
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Linear Tension Profile: Precision-ground surface ensures that every click of the regulator button results in a predictable change in drag pressure.
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Structural Durability: Built to withstand constant pressure from the check spring without flattening or deforming over time.
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Corrosion Resistance: Marine-grade construction ensures the cam remains smooth and free of pitting, even in humid or damp fishing conditions.
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Authentic Heritage Part: Maintains the exact mechanical specifications of the Alnwick factory, preserving the reel's signature "Hardy feel."
Maintenance & Lubrication
Because the regulator cam is a high-pressure friction point where metal meets metal (the cam against the spring), proper lubrication is essential to prevent the drag from feeling "notchy" or jumping. We recommend using Deuthlon high-performance lubricants:
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Primary Lubrication: Apply a coating of Deuthlon Power Grease to the tapered surface of the cam. This grease is formulated to stay in place under pressure, providing a smooth sliding action against the check spring.
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Pivot Protection: Use a drop of Deuthlon Reel Gear Oil on the cam’s center post to ensure it rotates freely within the frame without binding.