Product Description
Mitchell 81694 Pinion Gear – Genuine Replacement Part
The Mitchell 81694 Pinion Gear is a critical internal component designed for Mitchell’s heavy-duty conventional and trolling reels. This gear is responsible for transferring rotational power from the main drive gear to the spool, ensuring a smooth and powerful retrieve even under the extreme stress of saltwater game fishing.
Precision-cut to original factory specifications, the 81694 pinion gear is engineered to provide a perfect mesh with the main gear. Replacing a worn or chipped pinion gear is essential to eliminate "gear grind" and restore the silent, reliable performance that the Mitchell 600 series is known for.
Product Specifications & Compatibility
The 81694 Pinion Gear is built for the robust frames of Mitchell's large-capacity conventional reels. It is designed to handle the high torque of deep-sea trolling and heavy freshwater applications.
Compatible Models:
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Mitchell 600 (Standard conventional)
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Mitchell 600AP
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Mitchell 602
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Mitchell 602AP
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Mitchell 622
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Mitchell 624
Technical Note: The pinion gear is a high-wear part that interfaces with the spool shaft. To ensure correct alignment and to identify matching shims or bearings, please refer to the exploded view diagrams at www.reelschematic.com.
Technical Cross-Reference
To assist in sourcing through modern inventory systems or cross-referencing with other parts catalogs, this component is also identified by the following alternate part numbers:
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Alternate Part Number: 1181694
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Alternate Part Number: 81694-1
Key Features
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High-Strength Material: Machined from durable alloys to resist tooth deformation under heavy drag loads.
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Precision Tooth Geometry: Optimized for a quiet, low-friction interface with the main drive gear.
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Corrosion Resistance: Built to withstand the harsh conditions of saltwater spray and high humidity.
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OEM Specification: A direct drop-in replacement that restores the original factory gear ratio and performance.
Maintenance & Lubrication Recommendation
The pinion gear is a high-stress point that requires consistent lubrication to prevent premature wear. We strongly recommend using Deuthlon high-performance lubricants:
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Deuthlon Reel Grease: Apply an even, light coating to the gear teeth. Its "Ceramic Shield" technology provides a waterproof barrier and superior wear protection, ensuring a smooth feel even during intense battles.
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Deuthlon Reel Oil: Use one drop on the pinion gear support bearing or bushing to reduce startup inertia and protect against internal corrosion.

