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Tandem Axle Trailer Hanger Kit | Double-Eye Springs | 2-1/2 Inch Front Height, 2-1/2 Inch Rear Height, 5-7/16 Inch Center Height


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Redline Tandem Axle Trailer Hanger Kit APT1 is designed for use with 1-3/4 inch wide double eye springs. The kit includes 2-1/2 inch high front hangers, 2-1/2 inch high rear hangers, 5-7/16 inch high center hanger, 2-5/8 inch shackle straps, 8 inch long straight equalizers and mounting hardware. Designed to mount springs to 2,000 to 7,000 pound tandem axle trailer frames.

Product Specs for Redline APT1

  • Axle Type:Tandem Axle
  • Spring Type:Double-Eye
  • Spring Width:1-3/4 inch
  • Front Hanger Height:2-1/2 inch
  • Rear Hanger Height:2-1/2 inch
  • Center Hanger Height:5-7/16 inch
  • Dimension A (in):24-3/4
  • Dimension B (in):24-3/4
  • Dimension C (in):29-1/2
  • Dimension D (in):4-1/2
  • Manufacturers Part Number:APT1
  • Note:U-Bolts and spring are not included in hanger kits.
  • MPN: APT1
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Redline APT1 Details

Redline Tandem Axle Trailer Hanger Kit APT1 for Double-Eye Springs is designed to attach four 1-3/4 inch wide leaf springs to your 2,000-lb to 7,000 pound, tandem axle trailer frame.

Kit Includes:

  • (4) 2-1/2" high front and rear hangers #115918
  • (2) 5-7/16" high center hangers with 3/4" bolt holes #115919
  • (2) 8" long straight equalizers #A2251B3
  • (8) 2-5/8" long shackle straps #115052
  • (12) 3" long x 9/16" diameter shackle bolts #9163B
  • (12) 9/16" diameter locknuts #916DLN
  • (2) 3-1/2" long x 3/4" diameter wet equalizer bolts #126A1LN
  • (2) 3/4" diameter castle nuts #165093
  • (2) 2-1/4" long cotter pins #165649
  • (2) 1/8" MPT grease zerks #1610


  • (A) 24-3/4 inches - Distance Between Front and Center Hangers
  • (B) 24-3/4 inches - Distance Between Center and Rear Hangers
  • (C) 29-1/2 inches - Distance Between U-Bolts
  • (D) 4-1/2 inches - Distance Between Center of Axle and Trailer Frame

U-Bolts and spring are not included in hanger kits. Dimensions for 1-3/4 inch trailer axle.

Customer Q&A - Redline APT1


Redline is the one of the nation’s largest seller of replacement trailer parts. Redline has been leading the way since 1980 and have built their strong reputation by providing the best quality replacement trailer products.

Redline replacement trailer parts and accessories will you keep your trailer in top towing condition. They offer a large selection of trailer suspension parts, accessories and are a leading supplier in the United States. They supply many of the country’s top automotive stores and they stand behind their products. They are a one stop shop for trailer replacement parts for all types of trailers including utility trailers, flat beds, horse trailers, boat trailers and more.

Redline Warranty

1 Year Limited Warranty

On all Redline products. Some products have longer warranty coverage periods. This coverage is item by item and you should review the warranty information included.

What the warranty does not cover

Normal wear and tear over time, damage from abuse or neglect, corrosion, and damage resulting from accidents is not covered. Improper installation including welding will void any warranty. Any alteration of products beyond the included installation instructions will void the warranty.

How to get service

If a Redline product failure results from a manufacturer defect, contact us at Michigan Truck Spring for support. You can contact us by phone at 1-800-358-4751 or by using our contact form.

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