CP Piston Wrist Pin Lock | 0.866" Diameter | Piston Wrist Pin Retainers
Overview
The CP Piston Wrist Pin Lock is a precision-engineered retainer designed to securely hold the wrist pin in place within high-performance pistons. Essential for floating-pin configurations, these locks prevent axial movement of the wrist pin, ensuring reliable piston operation under demanding conditions. Ideal for Subaru enthusiasts and engine builders working on performance or motorsport applications, these locks provide peace of mind in engine assembly and operation.
Manufactured by CP-Carrillo, a leader in high-quality piston components, these wrist pin locks are crafted from durable steel to withstand the stresses of high RPM and combustion forces. CP’s engineering expertise ensures tight tolerances and consistent fitment, critical for maintaining piston integrity and engine longevity. Their focus on material strength and precision machining makes these locks a trusted choice for both automotive and powersport engines.
For Subaru owners upgrading or rebuilding their engines, using reliable wrist pin locks like these is vital to maintain piston stability and prevent catastrophic engine failure. The 0.866-inch diameter and 0.063-inch thickness are optimized for common floating-pin setups, making them a practical and durable solution for performance builds. Proper retention of the wrist pin contributes directly to engine durability and smooth operation, especially in high-stress environments.
Features & Specifications
This CP Piston Wrist Pin Lock is engineered for floating-pin automotive and powersport engines and features a 0.866-inch pin diameter with a 0.063-inch thickness. Constructed from carbon steel, it delivers robust retention strength for Subaru enthusiasts seeking reliable piston assembly components.
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Brand: CP
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Product: CP Piston Wrist Pin Lock
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Part Number: 866X063SWL
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Fitment: N/A
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Material: Steel / Carbon Steel
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Finish: Natural steel finish
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Construction: Precision stamped wire lock
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Origin: Not specified
Key Benefits
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Durability: High-strength carbon steel construction ensures long-lasting retention under high RPM and load.
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Fitment Precision: Engineered to exact tolerances for secure fit on 0.866" wrist pins, reducing risk of pin movement.
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Reliability: Prevents wrist pin axial play, protecting piston and connecting rod integrity during aggressive driving or racing.
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Compatibility: Suitable for a wide range of floating-pin engines, including Subaru performance builds.
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Ease of Use: Simple installation with a wire lock design that securely snaps into place without special tools.
What's Included
- 1× CP Piston Wrist Pin Lock (0.866" diameter, 0.063" thickness)
Installation & Compatibility
Installation of the CP Piston Wrist Pin Lock is straightforward for experienced engine builders familiar with piston assembly. The wire lock snaps into the piston pin bore groove to retain the wrist pin securely. While no special tools are required, careful handling is recommended to avoid deformation during installation. These locks are compatible with floating-pin pistons that use a 0.866-inch wrist pin diameter, common in many high-performance Subaru engine builds. Always verify wrist pin size and piston compatibility before installation to ensure proper fitment.
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Professional Installation: Recommended for engine assembly professionals or experienced enthusiasts
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Modifications Required: None
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Verify Compatibility: Confirm wrist pin diameter and piston design before purchase
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