Gunite AS1140 Automatic Slack Adjuster

The Gunite AS1140 Automatic Slack Adjuster

Product specifications:

  • 5-1/2″ arm length
  • 28 spline
  • For 1-1/2″ diameter s-cam splines
  • Includes AS3019 clevis kit
  • Clearance sensing
  • Adjustment occurs on application of brakes
  • Non-handed


Part#: AS1140
Vendor: GUNITE

Gunite AS1140

This Gunite AS1140 automatic slack adjuster has a 1.5″ spline diameter. It is a 28 spline count. The arm length is 5.5″ long.

Gunite slack adjusters are “unhanded,” meaning it can be used on either the left or right side of the vehicle. The pawl points directly away from the brake chamber so it is easily accessible for maintenance without interference from the brakes or camshaft.

This slack adjuster includes a clevis and pins. For replacement clevis on this slack adjuster, please see AS3019. For replacement pins, please see AS4004.

About Gunite Automatic Slack Adjusters

Gunite automatic slack adjusters are a tried, tested and trusted brand in the heavy duty air brake industry. They provide excellent performance than can reduce fleet maintenance costs and provide you with the reliability you deserve. Gunite has consistently provided the heavy duty air brake market with quality  products that will keep you and your truck on the road.

• 5″, 5-1/2″, 6″, 6-1/2″ Arm Lengths

• Straight or Offset clevis with 1/2″ or 5/8″ threads

• Unhanded design

• Compact housing for easy installation

• Drilled worm wheel

• Factory lubricated and sealed

• Extended life clevis pin bushing

• O-Ring on spline gear

• Available in 10, 24, 28, or 37 spline configurations

• Threaded and welded clevis applications

For more information on Gunite automatic slack adjusters, please visit their website.

Additional information

Weight 8.00 lbs
Qty. Included

Unit of Measure


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