Auto
5.5" Automatic Slack Adjuster Kit 1.5" 28-Spline for Semi Truck Trailer
- Availability
- Available
- Quantity
- 1 item available
- SKU
- DP-000133
💵 RETAIL PRICE COMPARISON:
• Standard Brand-New Store Retail Price: $75.00 - $125.00 (Save big buying here local!)
Selling a brand new, uninstalled automatic brake slack adjuster kit! This is a high-performance clearance-sensing unhanded design engineered to automatically maintain a uniform distance between the heavy-duty brake drum and lining to maximize your stopping efficiency and extend component lifespan.
Perfect, cost-saving replacement parts layout for commercial semi-trucks, box trucks, vocational dumps, or heavy air-brake trailer axles!
🔧 TECHNICAL DETAILS & SPECIFICATIONS:
• Slack Adjuster Model Class: Haldex Style ABA Automatic Brake Setup
• Arm Length Span: 5.5-inch Straight Arm (Measured center-to-center as pictured)
• Camshaft Hole Inner Diameter: 1.50 Inches
• Internal Spline Configuration: 28 Teeth
• Housing Structure: High-fatigue forged steel casing for maximum tensile durability
📦 WHAT’S INCLUDED:
• 1x 5.5" 28-Spline Automatic Slack Adjuster Module
• 1x Heavy-Duty Steel Stabilization Anchor Bracket Plate
• Complete Mounting Hardware Kit (Includes bolts, washers, and anchor pins)
Condition: Brand new and never mounted. The forged casing is perfectly clean, internal teeth grooves are crisp, and it features factory pre-lubricated sealed internal gears ready to bolt right up to your pushrod.
=== NEW 5.5" AUTOMATIC SLACK ADJUSTER KIT (1.5" - 28 SPLINE) ===
PRODUCT SPECIFICATIONS:
- Item Type: Heavy-Duty Commercial Automatic Slack Adjuster (ASA) Kit
- Arm Length / Center-to-Center: 5.5 inches (5-1/2")
- Spline Diameter: 1.5 inches (1-1/2")
- Spline Tooth Count: 28-Spline Layout
- Internal Adjuster Style: Clearance-Sensing Automatic Mechanics
- Kit Includes: Pack of 2 Matching Slack Adjuster Units plus installation hardware anchors/pins shown in photos.
- Condition: Brand New / Never Installed (Industrial Protective Finish)
UNIVERSAL COMMERCIAL VEHICLE & TRAILER AXLE FITMENT:
COMMERCIAL TRACTORS & SEMI-TRUCKS (Drive Axles & Front Steer Axles):
* Freightliner Trucks (Cascadia, Columbia, Century Class, Coronado, M2 Series)
* Peterbilt Motors (379, 389, 579, 567, 337 Fleet Platforms)
* Kenworth Truck Company (W900, T680, T800, T370 Series Chassis)
* International Harvester / Navistar (ProStar, DuraStar, WorkStar, LT Series)
* Volvo VNL Series & Mack Heavy-Duty Trucks
HEAVY-DUTY COMMERCIAL TRAILERS & DOLLIES:
* Standard Semi-Trailers (Dry Vans, Refrigerated Reefers, Flatbeds, Tankers, Drop-Decks)
* Vocational Platforms (Dump Trailers, Lowboys, Gooseneck Air-Brake Configurations)
* Commercial Axle Manufacturers (Fits Rockwell, Meritor, Dana Spicer, Eaton, and KB Axle S-Cam configurations calling for 1.5"-28 spline layouts)
MUNICIPAL & SPECIALTY ROAD FLEETS:
* Commercial Transit Buses, Motorcoaches, and Heavy Highway Shuttles
* Fleet School Buses running S-Cam Pneumatic Foundation Brakes (Blue Bird, Thomas, IC Bus)
IMPORTANT SERVICE FITMENT EXCEPTIONS & TECHNICAL NOTES:
- Spline & Dimension Check: This unit is explicitly sized for a 1.5-inch camshaft diameter with 28 splines and a 5.5-inch arm length. It will not replace smaller 1-1/4" setups or 10/37 spline camshaft variations.
- Professional Alignment: Features an automatic clearing configuration. Please ensure your camshaft setup matches these specs and use the included hardware clips to fix the reference anchor arm cleanly during installation.
===