Tsu CA 13565-28012 Oil Pump Chain Tensioner Spring

The Tsu CA 13565-28012 is an oil pump chain tensioner spring designed to maintain proper tension on the engine's oil pump drive chain. This critical component ensures consistent oil pump operation by providing constant spring pressure to the chain tensioner mechanism, preventing chain slack that could lead to timing issues or engine damage.

Key Features:

• Precision-engineered spring maintains optimal chain tension throughout the engine's operating range
• Direct replacement for Toyota OEM part number 13565-28012
• Compatible with multiple cross-reference numbers including Melling 5500B, Cloyes 9-5519, and GM 19185463
• Designed for reliable performance in demanding engine environments
• Essential component for proper oil pump chain damper operation

This tensioner spring works in conjunction with the oil pump chain damper assembly to reduce vibration and maintain proper timing chain alignment. Regular inspection and replacement of this spring during timing chain service helps ensure long-term engine reliability and prevents costly repairs from chain failure.