Product Description
Shimano 10J7E Idle Gear A (TGT0055) | Tekota & Triton Replacement
The Shimano 10J7E Idle Gear A is a fundamental internal transmission component engineered to drive the level wind system in various Shimano conventional and trolling reels. This gear acts as a primary link in the gear train, ensuring that the worm shaft rotates in perfect synchronization with the spool to provide a consistent and even line lay.
Precision-molded from high-impact industrial nylon, the 10J7E is designed to be a "sacrificial" part. In the event of a mechanical obstruction or jam in the level wind assembly, the nylon teeth are intended to strip first, effectively protecting the more expensive metal drive gears and the spool shaft from terminal damage.
Product Specifications
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Part Name: Idle Gear A
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Shimano Part Number: 10J7E
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Alternate Part Numbers: TGT0055, BNT0674
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Material: Metal
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Placement: Drive train interface (Internal)
Compatible Reel Models
This idle gear is a high-traffic replacement part for Shimano’s most popular saltwater and trolling reels. It is a direct fit for the following series:
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Shimano Tekota: TEK300, TEK300LC, TEK500, TEK500LC, TEK500LCM, TEK600, TEK600LC, TEK600LCM.
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Shimano Triton: TR100G, TR200G.
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Shimano Charter Special: Select models requiring the TGT0055 specification.
Technical Tip: To ensure proper timing of your level wind system during installation, refer to the original PDF parts diagrams and exploded views available at www.reelschematic.com.
Maintenance & Lubrication Recommendation
Since the Idle Gear A is a metal component interfacing with either metal or other nylon gears, choosing a plastic-safe lubricant is vital to prevent the material from becoming brittle over time. We recommend Deuthlon Lubricants for all Shimano reel services:
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For the Gear Teeth: Apply Deuthlon Reel Gear Grease. Its high-tack, water-resistant formula stays on the nylon teeth even during heavy trolling, ensuring a silent retrieve and reduced friction.
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For the Support Post: Use a drop of Deuthlon Power Cast Oil on the post or shaft where the gear sits. This ensures the gear rotates with minimal torque, reducing the overall effort required to turn the handle.
Why Choose Genuine Shimano 10J7E?
Replacing your worn gear with the official BNT0674/TGT0055 ensures your reel operates within its designed tolerances:
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System Protection: Maintains the engineered "break-away" safety feature to save your drive gear during jams.
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Perfect Alignment: Eliminates "skipping" in the line guide movement, preventing uneven line bunching.
