Product Description
Shimano 10FFZ Line Guide Pawl (BNT0042 & TGT0520)
The Shimano 10FFZ Line Guide Pawl (commonly referred to by its legacy part numbers BNT0042 or TGT0520) is perhaps the most universal "wear part" in the Shimano catalog. This small, T-shaped metal component is the mechanical heart of the levelwind system. It sits inside the line guide carriage and tracks the spiraling grooves of the worm gear to move the line guide back and forth across the spool.
Because the pawl is in constant motion during every cast and retrieve, its tip eventually wears down or flattens. This is the #1 cause of "levelwind failure," where the guide gets stuck on one side or skips as you turn the handle. Replacing it with a genuine 10FFZ part is a simple, 5-minute fix that restores perfectly even line lay.
Product Specifications
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Part Name: Line Guide Pawl
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Part Number: 10FFZ
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Shimano Codes: BNT0042 / TGT0520
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Material: Polished Hardened Alloy (also available in aftermarket Ceramic)
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Function: Engages the worm gear to drive the levelwind oscillation.
Alternate Part Numbers
These numbers are used interchangeably in official Shimano schematics depending on the region and age of the reel:
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BNT0042 (Classic Baitcasting designation)
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TGT0520 (Modern Conventional/Saltwater designation)
Compatibility & Fitment
The 10FFZ fits approximately 95% of Shimano's standard baitcasting and round reels. It is a direct factory fit for:
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Shimano Curado Series: All models (200B "Greenie", 200D, 200E, 200G, 200K, and 300 sizes)
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Shimano Calcutta Series: CT-50, 100, 150, 200, 250, 400, and 700 (Standard, B, and D versions)
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Shimano Chronarch Series: 100, 100A, 50E, 200E, and G series
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Shimano Cardiff & Corvalus: All frame sizes (100 through 400)
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Shimano Tekota Series: TEK-300, 500, and 600 (Standard and LC models)
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Shimano Citica, Caenan, Caius, & Castaic: Nearly every generation.
Signs Your Pawl Needs Replacement
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The "Stuck" Guide: The line guide moves to one side and stays there while the handle still turns.
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The "Ticking" Sound: A rhythmic clicking or ticking noise occurs exactly when the line guide reaches the end of its track and tries to turn back.
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Bunching Line: Your line is stacking up heavily on one side of the spool rather than laying flat.
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Visual Wear: Upon inspection, the "legs" or crescent tip of the pawl look rounded off or have visible silver burrs.
Installation Pro-Tips
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The "Drop and Twist" Method: When inserting the new pawl into the carriage, turn the reel handle slowly. The pawl will "drop" into place once it aligns with the worm gear groove. Never force the pawl cap down if the pawl isn't seated.
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Lubrication is Key: The 10FFZ is an exposed part. Use a light oil (like Shimano Bantam Oil) for maximum casting distance, or a light marine grease for maximum protection in saltwater.
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Don't Forget the Spacer: Check your old pawl cap for a tiny copper washer (BNT0060). If you omit this spacer, the new pawl may have too much "play" and skip out of the gear.
Maintenance Note: If you replace the pawl and the levelwind still fails, inspect the Worm Gear (BNT2151). A worn pawl often leaves a "burr" inside the gear groove that will quickly destroy your new replacement part.
