Skip to Main Content

Billet Aluminum Alternator Adjustment Arm, 70-83 Z/ZX

Billet Aluminum Alternator Adjustment Arm, 70-83 Z/ZX
Part #:10-2077
Price: $99.87
  • (1) Billet Aluminum Alternator Adjustment Arm
  • (1) Mounting Hardware Kit
  • (1) Instructions

This durable, great looking adjuster arm is the best option to replace the original. The factory leverage-type alternator adjuster arms were made of fairly thin metal, and are prone to bending, cracking, and eventually breaking as a byproduct of their design. The leverage that needs to be applied to the alternator to achieve proper belt tension on the original design ultimately weakens the arm itself over time, and if care isn't taken the alternator itself can be damaged. While the design was typical of the time, better alternatives have since been developed to replace the originals.

Our adjuster arms feature several benefits over the original design, including:
  • High quality materials for increased durability and strength.
  • Polished billet center rod and plated heim joints ensure show car quality appearance without sacrificing strength.
  • Adjustable from 5 5/8" to 7 3/4"
  • Built-in adjuster nut makes tensioning and loosening simple (only requires single open end/adjustable wrench to adjust).
  • Twist to adjust design for precision tension adjustment (no risk of over or under tensioning).
  • Heim Joint at each end provides high strength mounting points.
  • Double jam nuts fully prevent unwanted changes in adjustment position once tightened.
  • Includes all installation hardware (with proper hardware for use with heim joints).

Model Guide:
Datsun 240Z, 260Z, 280Z, 280ZX

Code Guide:
Datsun S30, S130

Year Guide:
1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983

Support Independent Z Engineers!
Please support the local independent engineers that bring so many great products to the Z Community. The same Engineer that did the original research to come up with many of the unique items available for your Z-Car, such as our front and rear brake upgrade kits, also brought high quality pieces like these adjustable alternator arms to Z Enthusiasts everywhere. Some unscrupulous individuals have taken these arms & had them copied with inferior components and materials.
This local engineer personally crafts the custom billet center sections himself, right here in Southern California, with materials made in the USA, while the rod ends and hardware are all top quality and specifically sourced for the design as well. Nobody comes close to his design, quality, and accuracy. Support his contribution to the Z Community by buying the originals, so this great asset to all Z Enthusiasts can continue to create great new products for the Z-Car. Thank you.

Attention California Customers:
WARNING: Cancer and Reproductive Harm -