Performance Timing Chain Kit for Nissan Altima (2004-2006) 3.5L

Heavy-Duty Performance Timing Chain Kit with Water Pump for 2004-2006 Nissan Altima (L31)

What it Does: The Performance Timing Chain Kit replaces degraded factory chains, tensioners, guides, and the internal water pump on the 2004-2006 Nissan Altima to restore precise valvetrain synchronization and eliminate timing-related mechanical failure.

The Stock Nissan Altima Valvetrain & Guide Wear Failure

The factory VQ35DE valvetrain in the L31 chassis is notorious for accelerated nylon guide shoe wear and tensioner hydraulic bleed-down. Over heat cycles, the OEM plastic guide facings deteriorate, allowing the secondary and primary timing chains to ride against bare metal tensioner pistons. This generates severe chain slack, scoring, timing retard, and DTC trouble codes such as P0011 and P0021. Because the VQ35DE is an interference engine, excessive chain stretch or skipped teeth causes immediate piston-to-valve contact, resulting in bent valves and catastrophic engine failure. Furthermore, the internal, chain-driven water pump bearings degrade over time, risking coolant contamination in the crankcase.

The Engineering Solution

This comprehensive timing service kit resolves OEM slack issues with pre-stretched, heat-treated alloy steel link chains, including a reinforced 196-link channel-back lower chain engineered for high tensile stability. Updated composite guide rails withstand elevated friction and oil temperatures without brittling. Matched with hardened 26-tooth crank and secondary cam sprockets, high-pressure hydraulic tensioners with positive-lock ratcheting pins, and a new anti-cavitation water pump, this kit restores factory camshaft timing, oil-damping integrity, and coolant circulation.

What's Included

• 1 Timing Chain Lower (196-link channel back)
• 2 Timing Chains Upper (1 left and 1 right)
• 1 Tensioner Lower (primary hydraulic)
• 1 Tensioner Upper (secondary left side)
• 1 Tensioner Upper (secondary right side)
• 1 Guide Rail (smallest - left fixed, 2 bolt holes)
• 1 Guide Rail (new style - right tensioner rail)
• 1 Guide Rail (new style - top)
• 2 Cam Sprockets External (secondary drive)
• 1 Crank Sprocket (26 teeth)
• 1 Engine Water Pump

Technical Specifications

Compatibility

• 2004-2006 Nissan Altima SE (3.5L V6 VQ35DE)
• 2005-2006 Nissan Altima SE-R (3.5L V6 VQ35DE)
• 2004-2006 Nissan Altima SL (3.5L V6 VQ35DE)

Frequently Asked Questions & Fitment Warnings

Does this fit the L31 Altima?

Yes, this is a direct fit for the 2004-2006 Nissan Altima equipped with the VQ35DE 3.5L engine. This kit does NOT include the internal intake cam sprockets (52/36 teeth VTC phasers), nor does it fit 2.5L QR25DE 4-cylinder models.

Are variable valve timing (VTC) internal cam sprockets included?

No, this kit includes only the two external secondary cam sprockets; factory variable intake cam phasers must be inspected and reused or sourced separately.

The Nissan VQ Caliber

The award-winning Nissan VQ35DE platform delivers sharp throttle response and robust high-RPM performance, but its long timing path demands zero component deflection. Rebuilding your front timing drive with precision-matched components guarantees factory timing alignment, protects bottom-end power output, and preserves valvetrain longevity under load.