The Volvo alternator decoupler hub coupling connects the alternator to the pulley system, allowing controlled movement that reduces stress on the belt and alternator. This coupling helps absorb shocks and vibrations during acceleration and deceleration, extending the life of your charging system components. A worn or damaged hub coupling can lead to noise, belt slippage, or charging inefficiency. Replacing this part restores smooth operation and protects your vehicle’s electrical system.
A quality hub coupling reduces mechanical stress and helps maintain efficient power transmission from the engine to the alternator.
Manufactured to meet Volvo’s specifications for a perfect fit and long-lasting durability.
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Available on all kits, sets & Bison performance products