DJ Rock TK638 Engine Timing Set

Engine Timing Chain Kit for Nissan Altima and Sentra

Restore accurate valve timing with the DJ Rock TK638 engine timing set. This premium silent-chain kit is built for 2002-2006 Nissan Altima and 2002-2006 Nissan Sentra applications with VVT engines, and it includes timing marks plus steel sprockets for precise alignment.

• Engine timing set for Nissan Altima and Nissan Sentra VVT applications
• Silent timing chain design for smooth operation
• Steel camshaft sprocket and steel crankshaft sprocket
• Timing marks included for setup and alignment
• Premium-grade components built to exact tolerances
• Sprockets included; gaskets not included

Detailed Product Overview

The DJ Rock TK638 timing chain kit is engineered to synchronize crankshaft and camshaft movement so the engine can maintain correct valve timing. It is a direct-fit timing set for 2002-2006 Nissan Altima and 2002-2006 Nissan Sentra models equipped with VVT engines, and the notes specify that variable valve timing cam gears are not included. The silent chain design, steel sprockets, and timing marks support accurate installation and dependable engagement in demanding engine conditions. This part cross-references Monroe Shocks & Struts (e.g., 3-4212S) for the same application.

Vehicle Fitment

• Fits 2002-2006 Nissan Altima, N/A. Premium Kit; VVT Engine; Variable Valve Timing Cam Gear(s) Not Included
• Fits 2002-2006 Nissan Sentra, N/A. Premium Kit; VVT Engine; Variable Valve Timing Cam Gear(s) Not Included

Common Repair Symptoms

• Rattling or chain noise from the front of the engine
• Incorrect camshaft and crankshaft timing
• Check engine light related to timing correlation faults
• Rough idle, misfire, or poor engine performance
• Wear in timing chain, guides, or sprocket engagement surfaces

Installation Notes

Confirm engine code and VVT configuration before ordering TK638. Follow factory timing procedures, align all timing marks carefully, and verify that the camshaft and crankshaft sprockets are seated correctly during assembly. Because gaskets are not included, inspect related sealing components and replace them as needed during timing service.

Quality Assurance

DJ Rock timing components are built to exact tolerances and manufactured to meet or exceed OEM quality standards. The TK638 uses premium materials selected for durability, including steel sprockets and a silent-chain design for consistent timing performance.