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HAULK DEPOT

Bolt with Castle Nut (LRG) – 7/8" x 4.75" Grease Type – For 7K-8K Equalizer | HD
SKU: 7BFEQ78-HD
$11.50 USD $11.50 USD
Shipping calculated at checkout.
In stock
Description

The 7/8" x 4.75" Grease Bolt with Castle Nut from Haulk Depot is engineered for large slipper spring equalizers used on 7,000–8,000 lb trailer axles. This wet bolt design allows for periodic lubrication, reducing wear and prolonging the life of your suspension system. Designed to fit 11", 12", and 13" equalizers, it ensures reliable performance for demanding applications.

Detailed Information:
Length 4.75"
Diameter 7/8"
Type Grease (Wet) Bolt
Included Components:
  • 1x 7/8" Grease Bolt (Wet Bolt)
  • 1x Castle Nut
Fitting:

Fits larger slipper equalizers (11"–13") on 7K–8K lb trailer axles. Designed for front or center hanger mounting in heavy-duty suspension systems.

Features:
  • Wet Bolt Design: Zerk fitting allows for easy greasing and reduced friction
  • Heavy-Duty Construction: Built to withstand demanding road conditions
  • Perfect Fit: Engineered for use with common 11", 12", and 13" slipper-style equalizers
  • Castle Nut Included: For secure fastening with cotter pin compatibility
Interchangeable Part Numbers:
  • 1600741536916
  • FA71063120119
  • GEB-78-KIT
Product Overview:

This 7/8" x 4.75" grease bolt with castle nut is ideal for securing large equalizers in slipper spring trailer suspension setups. Designed for 7K–8K lb axles, it improves ride stability and service life with its greasable design and robust build—an essential component for reliable trailer suspension performance.

We want you to be completely satisfied with your purchase. That’s why we offer a hassle-free return policy within 30 days of delivery*. If your item is unused, in original packaging, and eligible for return, you can send it back for a refund or exchange.

*Some exclusions may apply

Some of our products are backed by a 1-year limited manufacturer warranty covering defects in materials and workmanship under normal use. If you experience any issues during this period, we’ll work with you to repair, replace, or resolve it according to warranty terms.*

*Proof of purchase required

Need it fast? We’ve got you covered. Orders confirmed before 3 PM Eastern Standard Time (Monday–Friday) are processed and shipped out the same business day. Orders placed after the cutoff will ship the next business day.
Bolt with Castle Nut (LRG) – 7/8" x 4.75" Grease Type – For 7K-8K Equalizer | HD

Customer Reviews

Based on 12 reviews
75%
(9)
25%
(3)
0%
(0)
0%
(0)
0%
(0)
K
Kahlil Surphliss
Stays Tight Under Heavy Loads

Even after 2,500 miles with a full load, the bolt hasn’t loosened. That’s quality.

I
Igor Popov
Greasing Makes a Big Difference

The zerk fitting is a lifesaver. My trailer now runs quieter and with less bounce.

N
Nicolas Albasiny
Keeps Suspension Smooth

Replaced old dry bolts with these wet bolts—ride feels smoother and no squeaks after 1,000 miles.

S
Shannan Menico
Heavy-Duty and Dependable

This is a beefy bolt—exactly what a loaded trailer needs. The castle nut locks in solid.

M
Meade Wyche
Reliable Replacement Part

Used on my 8K lb flatbed. After a long haul, still tight and working perfectly.

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