1997-2004 C5 Power Steering Pulley - OEM Number(s) (12559890)
Keep your steering smooth and your Corvette cruising effortlessly with the 1997-2004 C5 Power Steering Pulley. This factory-original replacement is engineered to maintain optimal belt tension and consistent power steering function, ensuring your C5 handles every turn with the responsiveness it was born with. If your existing pulley is cracked, warped, or worn, it’s time to restore the precision and reliability your Corvette deserves.
Designed to meet exact OEM specifications, this pulley is built from high-strength composite materials that are both lightweight and durable—reducing rotational mass without sacrificing longevity. It installs with factory-like fitment and helps prevent belt slippage or uneven steering performance, especially under load or aggressive driving.
Why it matters: A failing power steering pulley can lead to belt misalignment, increased steering effort, or even premature wear of the entire steering system. Replacing it with the correct part ensures lasting performance and the confident handling C5 drivers expect.
Product Details:
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Fits: 1997–2004 Corvette C5
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Material: High-strength composite
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Function: Drives power steering pump for fluid circulation and assist
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Manufacturer Part Number: 12559890
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GM Original Part Number: 12559890
Don’t let a small part throw off your steering game. Replace your worn pulley with this OE-spec component and bring your Corvette’s handling back up to speed—literally.
Also known under these part numbers: (For reference only)