Product Description
Shimano 10QP1 Roller Clutch Assembly (RD13797 / RD16395)
The Shimano 10QP1 Roller Clutch Assembly (R/C ASY N) is a critical internal component responsible for the "Instant Anti-Reverse" function in Shimano spinning reels. Known among anglers as the One-Way Bearing, this assembly ensures that the handle and rotor stop immediately without any "back-play" or "slop" when you stop retrieving or when a fish strikes.
The "10BTR4000D" designation in the description refers to its primary application in the Baitrunner 4000D, one of Shimano’s most popular heavy-duty saltwater and freshwater spinning reels.
Product Specifications
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Part Name: Roller Clutch Assembly (R/C ASY)
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Shimano Part Number: 10QP1
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Schematic Part Number: RD13797 (standard) / RD16395 (updated)
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Function: Instant Anti-Reverse / One-Way Clutch
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Design: Multi-roller system with friction-controlled orientation.
Compatible Reel Models
The 10QP1 (RD13797) is the factory-standard roller clutch for the following models:
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Shimano Baitrunner D: BTR4000D, BTR6000D, BTR8000D, BTR12000D.
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Shimano Thunnus CI4: 4000, 6000, 8000, 12000 versions (which share the Baitrunner D architecture).
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Shimano Saragosa F: Select older models (Verify by schematic).
Technical Note: If your reel handle has started "slipping" or turning backward in cold weather, it is a sign that the Roller Clutch is either contaminated with heavy grease or the internal springs have lost tension. Replacing the 10QP1 assembly is the most reliable fix for anti-reverse failure.
Maintenance & Lubrication Recommendation
The Roller Clutch is one of the most sensitive parts of the reel. Never pack this assembly with grease, as it will cause the rollers to stick and the anti-reverse to fail.
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Proper Lubrication: Use a single drop of an ultra-light oil, such as Deuthlon Power Cast Oil or Shimano Bantam Oil.
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Cleaning: If the assembly is dirty, soak it in a degreaser (like Isopropyl Alcohol), dry it completely, and re-oil lightly.
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Installation: When installing the 10QP1, ensure the Roller Clutch Inner Tube is inserted correctly. If inserted upside down, the anti-reverse will not engage or the reel will feel blocked.
Why Use Genuine Shimano 10QP1?
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Zero Back-Play: Engineered with precise tolerances to provide a "rock-solid" stop, which is essential for effective hooksets.
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Corrosion Resistance: The rollers and housing are treated to resist the high-salinity environments that Baitrunner reels typically encounter.
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Matched Spring Tension: The internal "N" iteration features springs calibrated for the specific rotor weight of the 4000-12000 size reels, ensuring it doesn't "slip" even under high drag loads.
