10KTE  (TGT0437  Cast Control Cap)

Genuine Shimano Tiagra cast control cap (part #TGT0437, SKU 10KTE) — the external knob that adjusts spool tension and braking pressure on Tiagra trolling reels. Turning this cap fine-tunes how freely the spool spins in free spool mode, helping prevent backlashes during dropping baits and controlling bait descent speed. When the cast control cap threads strip or the internal components wear, you lose the ability to fine-tune spool tension, leading to uncontrolled line release. Cross-references with Shimano part number TGT0437. OEM replacement ensures precise spool tension adjustment. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano Tiagra trolling reel parts and professional reel service.