Gentec HT618 Hydraulic Weld-On Excavator Thumb | Machines Under 3,900 lb

KEY FEATURES

• Hydraulic operation lets the operator control the thumb from the excavator cab
• Works with the excavator bucket to grab, hold, sort, and position irregular material
• Compact 6" x 18" design built specifically for smaller excavators
• Maximum 140° extension angle provides a broad working range
• Tines extend only 7.5" from the excavator stick when fully retracted, helping reduce interference while digging
• 1/2" AR400 steel tines use a reinforced ladder-frame design with gussets for added strength
• Double-sealed welded hydraulic cylinder is built for dependable operation
• Mechanical stop helps prevent cylinder lockout when the thumb is fully retracted
• Greaseable main pin and cylinder pins help reduce wear
• Hydraulic cylinder included
• Replacement parts available
• Backed by Gentec’s 1-year manufacturer warranty


SPECIFICATIONS

Model: HT618
Recommended Excavator Weight: Under 3,900 lb
Gentec Weight Class: 0.6–2.2 Metric Tons
Thumb Width: 6"
Thumb Length: 18"
Backplate Width: 2"
Backplate Length: 23 3/8"
Tine Thickness: 1/2"
Tine Material: AR400 / Hardox 400
Main Pin Diameter: 1"
Maximum Extension Angle: 140°
Distance From Stick When Retracted: 7.5"
Hydraulic Port Size: SAE-04 / ORB-04
Mounting Style: Weld-On
Operation: Hydraulic
Hydraulic Cylinder: Included
Manufacturer Warranty: 1 Year


FITMENT & HYDRAULIC REQUIREMENTS

Machine Type: Small and compact excavators
Mounting Interface: Weld-on backplate
Auxiliary Hydraulics: Required
Maximum Thumb Circuit Pressure: 1,800 PSI
Installation: Welding and hydraulic connection required
Recommended Installer: Qualified equipment dealer, hydraulic shop, or experienced professional welder

Fitment must be based on the excavator, bucket geometry, and coupler configuration—not operating weight alone. The location of the thumb must allow it to properly meet the bucket throughout its working range.

Please provide your excavator make, model, year, operating weight, bucket width, and coupler information so CrewTough can confirm fitment before the order is released.

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1-Year Limited Warranty


Gentec Equipment warrants to the original purchaser that all attachments manufactured by Gentec Equipment are free from defects in materials and workmanship for a period of 1 year from the date of purchase.


If a defect is found within this warranty period, Gentec Equipment will, at its discretion, repair or replace the defective product or part free of charge, subject to the terms outlined below.



Warranty Claim Procedure



Customers must notify Gentec Equipment immediately of the defect by phone or email.
All claims must be accompanied by a photograph of the defective product.
Repairs or replacements must be pre-approved by a Gentec Equipment representative.

The defective product must be returned to a location designated by Gentec Equipment.

Limitations


This warranty does not cover labour costs, including installation, removal, or transportation expenses.



Gentec Equipment’s warranty will not apply to:



Products that, in our judgment, have been misused, abused, or improperly maintained.
Products that are not sold or manufactured by Gentec Equipment or an authorized Gentec Equipment dealer.

Alterations or repairs not authorized by Gentec Equipment.

Damages to equipment or downtime resulting from a defective Gentec Equipment product.