XDP XD389 Performance Valve Springs & Retainer Kit for 5.9 Cummins (1989-1998)

Boost the performance of your 5.9 Cummins engine with the XDP XD389 Performance Valve Springs & Retainer Kit, engineered for those looking to push their truck’s boost levels and overall capability. Designed for 1989-1998 Cummins trucks, this complete kit includes high-performance conical springs, locks, and retainers, offering everything you need for a straightforward installation.

The conical spring design provides superior performance over stock valve springs, ensuring improved durability and better handling of increased boost pressure. Whether you're enhancing your truck for towing, off-roading, or high-performance driving, this upgrade is ideal for getting the most out of your engine.

Key Features:

• Boost Performance: Designed for increased boost levels on 5.9 Cummins engines (1989-1998)
• Complete Kit: Includes performance valve springs, locks, and retainers for easy installation
• Conical Spring Design: Provides superior performance, handling more pressure than stock springs
• Engineered for High Boost: An excellent upgrade for enthusiasts looking to maximize their truck’s potential

Unlock your Cummins engine’s full power potential with the XDP XD389 Performance Valve Springs & Retainer Kit and experience enhanced performance and reliability. Perfect for serious Cummins enthusiasts looking for superior power and durability.