GMB 450-8930 Engine Timing Idler - Lower

Engine Timing Idler for Nissan and INFINITI

GMB 450-8930 is an engine timing idler built for lower-position applications on select Nissan and INFINITI vehicles. Manufactured to meet or exceed OEM specifications, it is a direct-fit replacement for timing system service where pulley alignment and belt tracking matter.

• Engine timing idler for lower-position applications
• Fits serpentine and V-belt setups
• Metal pulley construction for durability
• 1 mm drive belt pulley diameter specification listed by manufacturer
• Cross-references Gates T42021 for the same application

Application Details

Compatible with 1993-1997 INFINITI J30, lower, and 1990-1996 Nissan 300ZX, lower. This GMB 450-8930 timing idler is also referenced by Dorman - Conduct-Tite 85283 for related application matching. Use it when servicing the lower timing drive on the Nissan 300ZX or INFINITI J30 and you need a replacement that follows OEM-level dimensional and material requirements.

What This Part Helps Address

• Noise from a worn or rough idler pulley
• Belt tracking issues in the timing drive
• Visible pulley wear or surface damage
• Service replacement for aging lower timing components
• Fitment-specific replacement needs on Nissan 300ZX and INFINITI J30

Installation Notes and Tips

Verify the lower mounting location and compare the existing pulley style before installation. Confirm belt type, groove count, and pulley material against the original part to ensure proper alignment. For timing system service on the Nissan 300ZX or INFINITI J30, inspect adjacent components for wear before reassembly.

Quality Assurance

GMB manufactures this part to meet or exceed OEM specifications, supporting consistent fit and function for timing system repair. Part number 450-8930 is built for application-specific replacement use on confirmed vehicle listings.