Product Description
Shimano 10AQA Idle Gear (A)
The Shimano 10AQA Idle Gear (A) is a high-precision internal drive component essential for the level wind system in your Shimano round baitcasting reels. This gear plays a pivotal role in synchronizing the rotation of the spool with the movement of the line guide, ensuring an even line lay across the spool during both the cast and retrieve.
Crafted from durable, low-friction materials, the 10AQA is designed to minimize mechanical drag and noise. If you notice uneven line bunching on one side of your spool or hear a clicking sound during the retrieve, your idle gear may be worn or have chipped teeth. Replacing it with this genuine Shimano factory part will restore the smooth, factory-standard line management your reel was built for.
Product Specifications
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Part Name: Idle Gear (A)
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Part Number: 10AQA
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Material: Heavy-duty composite
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System: Level Wind / Drive Train
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Placement: Typically located on the handle side or non-handle side plate depending on the specific model's drive configuration.
Alternate Part Numbers
This part is often cross-referenced or superseded by the following Shimano part numbers:
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BNT1965
Compatibility & Fitment
The 10AQA (BNT1965) idle gear is used extensively in Shimano’s medium and large capacity round reel series. It is a direct fit for the following models:
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Shimano Corsair Series: CS-400, CS-400A
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Shimano Cardiff Series: CDF-400A, CDF-401A
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Shimano Corvalus Series: CVL-400, CVL-401
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Shimano Catala Series: 300, 400 models (Verify via schematic)
Pro Tip: Because level wind systems can vary between reel generations, we recommend verifying your specific reel’s assembly using a PDF schematic. You can find the exact parts diagram for your model at www.reelschematic.com.
Key Benefits
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Optimized Line Lay: Restores the precise oscillation needed to prevent "line dig" during heavy drags.
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OEM Durability: Engineered to withstand the torque of large freshwater and saltwater species.
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Easy Installation: Direct drop-in replacement for the BNT1965 gear.
