Product Description
Shimano 10KZK Gear Shaft Shield (TLD0078) | Drive Train Protection
The Shimano 10KZK Gear Shaft Shield (TLD0078) is a specialized protective component designed for the drive shaft assembly of Shimano’s legendary TLD and Star Drag series reels. This shield serves as a critical barrier, sitting at the base of the main gear shaft to prevent salt, grit, and water from migrating into the internal gear chamber and the main drive bearings.
Precision-molded from a durable, chemical-resistant polymer, the 10KZK ensures that your reel's "engine room" remains clean and well-lubricated even during heavy saltwater spray or wash-down procedures. A cracked or missing shield can lead to premature bearing failure and gear corrosion, making this an essential part for long-term reel maintenance.
Product Specifications
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Part Name: Gear Shaft Shield / Drive Shaft Cover
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Shimano Part Number: 10KZK
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Alternate Part Number: TLD0078
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Material: Metal
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Application: Internal Gear Train Protection
Compatible Reel Models
The TLD0078 is a foundational part for Shimano’s most famous lever drag and star drag conventional reels. It is a direct fit for the following series:
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Shimano TLD Star: TLD 15/30, TLD 20/40.
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Shimano TLD Lever Drag: TLD 5, TLD 10, TLD 15, TLD 20, TLD 25 (Single Speed models).
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Shimano Triton: Select TR series models (Check schematic for TLD0078 cross-reference).
Maintenance Tip: Because this shield sits behind the main gear, it is often overlooked during basic servicing. To ensure it is seated correctly against the frame, refer to the official PDF parts diagrams at www.reelschematic.com.
Maintenance & Lubrication Recommendation
The Gear Shaft Shield functions best when it is assisted by a high-quality moisture barrier. When reassembling your gear train, we recommend using Deuthlon Lubricants:
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For the Shield Surface: Apply a light film of Deuthlon Reel Gear Grease to both sides of the shield. This creates a "hydrophobic" barrier that helps shed water and prevents salt crystals from adhering to the polymer.
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For the Gear Shaft: Before sliding the shield into place, apply Deuthlon Power Cast Oil to the drive shaft to ensure smooth rotation and prevent the shield from "dragging" against the shaft during high-speed retrieves.
Why Use Genuine Shimano 10KZK Parts?
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Engineered Fit: The internal diameter of the 10KZK is sized exactly to the TLD drive shaft to provide a seal without causing mechanical friction.
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Chemical Resistance: Unlike standard plastic washers, this shield is designed to withstand the degreasers and oils used during professional reel servicing.
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Extended Reel Life: By isolating the main gear bearing from the external environment, this part significantly reduces the frequency of bearing replacements.
