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Trailer Parts Pro 3,500 lb Trailer Axles Pre-Greased Idler Hub Assembly 5 on 4.5" Bolt Pattern, #84 Spindle, 1/2" Studs, H84545BX


Regular price $66.79 USD

Care information

To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:

  • Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
  • Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
  • For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
  • Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
  • Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
  • After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
  • If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.

Delivery and Shipping

Handling Time: Orders ship out within 1 business day after payment is received.

Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.

Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).

Tracking: A tracking number will be provided once your order is dispatched.

Product Overview:

This comprehensive pre-greased trailer idler hub assembly provides a reliable replacement solution for 3,500 lb axles equipped with a #84 spindle. Designed with a 5 on 4.5" bolt pattern and 1/2" studs, the kit offers peak convenience as the inner and outer bearing races arrive professionally pressed into the hub body. The heavy-duty painted finish paired with dual grease or Zerk-lube compatibility delivers long-lasting protection and smooth rotation for your trailer's wheel assembly.

What's Included by Kit Option:

1 x 5 on 4.5" Pre-greased Hub

1 x L68149 Inner Bearing

1 x L44649 Outer Bearing

1 x L44610 Outer Race

1 x L68111 Inner Race

1 x 10-19 Grease Seal

1 x 46749 Grease Cap

1 x 21-41-1 Grease Cap

1 x 85-1 Grease Cap Plug

5 x X1023R Coned Wheel Nuts

Specifications:

Brand: Trailer Parts Pro

Part Number: H84545BX

Reference Number: 107049

Alternate Item Numbers: PP84545, PPG84545RA, 7650073-03B

Bolt Pattern: 5 on 4.5"

Axle Capacity Rating Per Pair: 3.5K

Capacity Per Hub: 1,750 lbs

Fits Spindle: #84

Stud Size: 1/2"

Finish: Painted

Inner Bearing Part Number: L68149

Outer Bearing Part Number: L44649

Seal Inner Diameter: 1.719"

Thread Count: 20

Lubrication: Grease or Zerk-Lube

Package Type: Retail Packaged

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