Back to product group

SAF ULX40™ Series

The SAF ULX40™ Trailer Slider Suspension Axle System is the lightest weight tandem spring ride slider suspension system available for dry van and reefer trailer applications.

Product inquiry
Product information

The SAF ULX40™ UltraLite40™ Slider Suspension Axle System with spring ride technology is a proven performer and the choice for many on-highway fleets for its low maintenance operation requirements. One complete integrated slider axle suspension system.

The ULX40™ Series Slider Suspension Axle System features:

  • Qwik Release Pin Pull System with 20% Less Pulling Effort
  • Optional P89™ PSP7 or P89 Plus™ Air Disc Brakes
  • Optional SC5 Dressed Drum Wheel End Package with 5-Year Warranty
  • Optional Air Release Pin Pull System for Easy Slider Subframe Repositioning  
  • Optional Tire Pilot Plus™ Tire Inflation System
  • Optional Composite Springs for Enhanced Ride Performance and Weight Savings
  • Optional Galvanization Treatment for Slider Subframe
  • Slider Subframe with Open Style C-Channel Construction for Strength and Anti-Corrosion
  • Hardened Steel Wear Pads to Reduce Hanger Wear
  • 5.75”  Diameter Robust Axle
  • Black Armour® Corrosion Protection
  • Featuring Haldex Calipers and Actuators
Technical data
Capacity:40,000 lbs. (18.1 t)
Ride Heights:13.25” - 18”
Standard Slider Width:48” (optional 42” and 54”) 
Standard Axle Track:77.5” (optional 71.5” and 83.5”) 
Literature
View all
Document Thumbnail
Important Info - SAF Trailer Suspension Systems – Change Notification
pdf / 372.94 KB
Document Thumbnail
SAF Tire Pilot Plus Retrofit Kits Availability Bulletin
pdf / 1.36 MB
Document Thumbnail
SAF Service Bulletin Trailer Suspension - Trailer Mechanical Suspensions G-Rail Radius Repair Procedure
pdf / 1.31 MB
Document Thumbnail
SAF Service Bulletin Trailer Suspension - Trailer Mechanical Suspensions Cross-Member Repair Procedure
pdf / 4.65 MB
Document Thumbnail
SAF Trailer Axle Production Change Notification Bulletin for Tire Inflation Prep
pdf / 499.55 KB
Document Thumbnail
SAF Drum Brake Lining - New Color Code Change Bulletin
pdf / 424.18 KB
Document Thumbnail
Friction Material - New Markings Bulletin for SAF Drum Brakes
pdf / 308.62 KB
Document Thumbnail
SAF P89 Air Disc Brake Hub Change with MTIS (PSI) Tire Inflation System Bulletin
pdf / 148.66 KB
Document Thumbnail
SAF Hub/Wheel Bearing Lubrication Upgrade Bulletin for all Dressed Axles
pdf / 1.08 MB
Document Thumbnail
Consolidation & Standardization to the New \"SC5\" Dress Drum Brake Wheel End Package Bulletin for SAF CBX & ULX Series Trailer Suspension Systems
pdf / 336.28 KB
Document Thumbnail
Important Info - SAF-Trailer Suspension Axle Systems Equipped with Disc Brakes
pdf / 142.40 KB
Document Thumbnail
SAF P89 Series Air Disc Brakes Product Line Announcement Bulletin
pdf / 856.20 KB
Document Thumbnail
SAF Drum Brake & P89 Air Disc Brake Axles with Axle Spindle Nuts Change Bulletin
pdf / 596.85 KB
Document Thumbnail
SAF Parallel (P-Style) Spindle Axles Change Bulletin for Drum Brake Axles Only
pdf / 489.80 KB
Document Thumbnail
ABS Sensor Block for P89 Integral and P89 Plus
pdf / 247.56 KB
Document Thumbnail
Printed Serial Tag with 2D Bar Codes Bulletin for SAF CBX, ULX, UltraLite & Z-Frame Series Sliders
pdf / 191.72 KB
Document Thumbnail
Camshaft Enclosure Design Improvement Bulletin for SAF Trailer Drum Brake Axles
pdf / 243.76 KB
Document Thumbnail
ABS Tone Ring Change for SAF P89 PLUS Air Disc Brake Systems
pdf / 338.42 KB
Document Thumbnail
SAF CBX Slider Suspension Pull Pin Rod Important Info Bulletin
pdf / 51.55 KB
Document Thumbnail
SAF CBX40 & ULX40 Important Information Product Change Notice for INTEGRAL C88 disc brake hub caps
pdf / 120.48 KB
Document Thumbnail
Spider Bearing Cam Seal Removal & Reassembly Instructions for SAF Series Drum Brake Axles
pdf / 166.69 KB
Document Thumbnail
SAF Trailer Axles with 85⁄8˝ Drum Brakes Marketing Bulletin
pdf / 482.66 KB
Document Thumbnail
Integral Disc Brake Wheel and Valve Stem Clearance Notification
pdf / 92.12 KB
Interested? Get in contact.
Give us a call!