Dorman 420-177 | Engine Timing Belt Tensioner

Part Number
Timing Belt Adjuster (Adjuster only)

Fits: 90-96 Nissan 300ZX, 93-97 Infiniti J30

Special Price $199.63 Regular Price $216.99
In stock
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Estimated Ship Date: 1 Business Day or Less

This engine timing belt tensioner is designed to match the fit and function of the original tensioner on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

BRAND: Dorman - OE Solutions


  • Engine, Timing, Belt, Tensioner, Belts, Tensioners, Adjuster, Adjusters
  • Timing Belt Adjuster (Adjuster only)
  • Recommended for replacement when a new timing belt and pulleys are installed
  • Direct replacement - this engine timing belt tensioner is designed to match the fit and function of the original tensioner on specified applications
  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
  • Infiniti J30 1997-93, Nissan 300ZX 1996-90
  • Durable construction - this part is made from quality materials to ensure reliable performance and long service life


Bracket IncludedNo
Contact Surface MaterialCast Steel
Item GradeStandard Replacement
MaterialDuctile Iron
Package Contents1 Tensioner
Pulley IncludedNo
Tensioner StyleAutomatic - Hydraulic



  • DAYCO: 85064
  • Nissan: 1307045V04
  • ACDELCO: T41085
  • Beck/Arnley: 024-1196
  • GATES: T41085


  • 1993-1997 Infiniti J30 - Position: N/A
  • 1990-1996 Nissan 300ZX - Position: N/A
Customer Questions
Can I use Dorman parts to replace OEM parts?
Yes, Dorman parts can often be used as replacements for OEM parts, but it is important to carefully compare specifications and ensure compatibility.
How do I install Dorman shift linkage bushing?
To install a Dorman shift linkage bushing, first locate the old bushing and remove it if necessary. Apply lubricant to the Dorman bushing and slide it onto the shift linkage, tapping it into place with a soft tool until fully seated. Check the alignment and function of the shift linkage after installation.
Where is Dorman manufactured?
Dorman is a global automotive parts supplier with manufacturing facilities in the United States, Mexico, Canada, China, and India. Its headquarters and largest manufacturing facility are located in Colmar, Pennsylvania, USA.
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