[Lifetime Warranty] WA6531 GT Trimmer Replacement Spool Cap Covers - Compatible with Worx WA0010, WG155, WG180 - Replaces 50006531 - Pack of 4

WA6531 Spool Cap Covers for Worx GT Series Trimmers

Key Features

• High-Impact ABS Construction: Manufactured from durable, UV-resistant ABS plastic to withstand high-velocity contact with rocks, curbs, and hard surfaces during edging and trimming.
• Dual-Tab Locking System: Features a precision-molded snap-on design that ensures the cap remains securely locked to the trimmer head even under high centrifugal force and heavy vibration.
• Optimized Line Protection: Designed to protect the WA0010 trimmer line and spool from dirt, debris, and ground friction, extending the life of your line and internal spool components.
• Tool-Free Installation: Engineered as a direct-fit replacement that snaps into place by hand, allowing for quick line changes and maintenance without the need for additional tools.
• High-Visibility Orange: The bright factory-match color ensures the cap is easy to locate if accidentally dropped in tall grass or brush during a line refill.

Replaces / Cross-Reference Part Numbers

• WA6531
• 50006531
• WA0010 (Compatible Spool Series)

Compatibility & Fitment

This spool cap cover is specifically designed for the Worx GT and GT Revolution series of cordless and electric trimmers. Key compatible models include:

• Worx GT Series: WG150, WG151, WG151.5, WG152, WG153, WG154, WG155, WG155.5, WG156, WG157.
• Worx GT Revolution & Nitro: WG160, WG160.1, WG160.2, WG160.3, WG160.4, WG163, WG165, WG170, WG175, WG180.
• Worx Electric: WG167, WG176.
• Note: Specifically designed to secure the Worx WA0010 (single-line) spool system.

When to Replace

• Worn-Through Center: The bottom of the cap has ground down from contact with pavement or soil, potentially exposing the trimmer spool and line.
• Broken Locking Tabs: One or both of the side "snap" tabs have cracked or snapped off, causing the cap to fly off while the trimmer is spinning.
• Visible Stress Fractures: Small white lines or cracks appearing in the orange plastic, indicating the material has become brittle and is prone to failure.
• Loose Fitment: The cap no longer "clicks" firmly into place, which can cause the internal spool to vibrate or jump out during use.
• Melting or Heat Damage: Significant warping of the plastic due to friction heat from the trimmer head or line.

Installation Tips

• Clean the Trimmer Head: Before snapping on the new WA6531 cap, use a stiff brush to remove dried grass, mud, and debris from the locking slots on the trimmer head. This ensures a 100% secure lock.
• Tab Alignment: Align the two plastic tabs on the cap with the corresponding notches on the trimmer hub. Press down firmly on both sides until you hear a distinct "click" from each tab.
• The Pull Test: After installation, give the cap a firm tug by hand to ensure it is locked. A loose cap can become a high-velocity projectile if it detaches at full RPM.
• Check the Spool: Ensure the WA0010 spool is seated flat and the line is correctly threaded through the metal eyelet before snapping the cap on. If the spool is crooked, the cap will not lock properly.
• Avoid "Bottoming Out": To prolong the life of your new cap, try to avoid letting the trimmer head drag directly on concrete or stone while edging; keep the head slightly elevated to reduce friction wear.