Product Description
Mitchell 81737 Upper Frame Post – Genuine Replacement Part
The Mitchell 81737 Upper Frame Post is a critical structural pillar for Mitchell’s classic 600-series conventional and saltwater reels. These posts act as the "backbone" of the reel frame, spacing the side plates correctly and providing the rigid support needed to keep the spool and drivetrain perfectly aligned under the torque of heavy retrieval.
Often crafted from high-quality brass, the 81737 is the "Upper" post, distinguishing it from the lower and middle posts that may have different lengths or attachment points for accessories like the rod clamp or clicker mechanism. Replacing a bent or corroded post is essential for eliminating frame "flex" and preventing the side plates from rubbing against the spool.
Product Specifications & Compatibility
The 81737 Upper Frame Post is engineered to the exact tolerances of the French-made Mitchell 600 family. It ensures a rock-solid foundation for both offshore and heavy freshwater applications.
Compatible Models:
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Mitchell 622 (Standard Saltwater Conventional)
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Mitchell 624 (Large Capacity Conventional)
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Mitchell 600 / 600A / 600AP
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Mitchell 602 / 602A / 602AP
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Mitchell 604
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Mitchell 620
Technical Note: In the Mitchell 600 series, different posts may serve different secondary functions. To ensure this specific post is located in the "Upper" position on your specific model, please refer to the high-resolution PDF schematics at www.reelschematic.com.
Technical Cross-Reference
For technicians and collectors sourcing through modern inventory systems, this part is identified by the following alternate manufacturer part numbers:
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Alternate Part Number: 81737-1
Key Features
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High-Strength Brass Construction: Naturally corrosion-resistant and strong enough to maintain frame alignment under the stress of fighting large game fish.
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Precision Facing: The ends of the post are machined perfectly flat to ensure a square, gap-free fit against the side plates.
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OEM Threading: Features the specific thread pitch required for a secure, vibration-resistant connection with the frame screws.
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Structural Integrity: Restores the "boxed" strength of the reel, protecting the internal gear mesh from displacement during heavy load.
Maintenance & Lubrication Recommendation
Because frame posts are structural points where salt and moisture often trap, they are prone to "galvanic corrosion" at the screw interface. We strongly recommend using Deuthlon products during reassembly:
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Deuthlon Reel Grease: Apply a small amount to the internal threads of the 81737 post before inserting the frame screws. Its "Aqua Shield" technology creates a waterproof barrier that prevents the screws from "freezing" into the brass post over time.
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Deuthlon Reel Oil: A light wipe of oil on the exterior surface of the post helps shed water and prevents green oxidation (verdigris) from forming on the brass in harsh saltwater environments.
