A full profile view of the GEARWRENCH 3900 universal pulley holder engine fan clutch removal wrench against a clean white background, featuring a long 23.5-inch black metal body, a comfortable red rubber grip on the left, and adjustable hooked jaws on the right for securely holding pulley mounting bolts.
A reverse profile studio shot of the 23.5-inch GEARWRENCH universal pulley holding tool for professional auto mechanics, displaying the adjustable hook pins on the left designed for fan clutch removal on Ford, Dodge, GM, and Jeep trucks, leading to the red cushioned handle on the right.
A full profile view of the GEARWRENCH 3900 universal pulley holder engine fan clutch removal wrench against a clean white background, featuring a long 23.5-inch black metal body, a comfortable red rubber grip on the left, and adjustable hooked jaws on the right for securely holding pulley mounting bolts.
A reverse profile studio shot of the 23.5-inch GEARWRENCH universal pulley holding tool for professional auto mechanics, displaying the adjustable hook pins on the left designed for fan clutch removal on Ford, Dodge, GM, and Jeep trucks, leading to the red cushioned handle on the right.
GEARWRENCH

GEARWRENCH 3900 Universal Pulley Holder Wrench Tool Set (23.5 Inch Length, 3 Pieces, Fan Clutch Removal for Ford Dodge GM Jeep Truck Engines)

In stock
SKU: 3900
$17.95 USD

Description

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Professional Grade Universal Pulley Holding Engine Service Tool Set

The GEARWRENCH 3900 Universal Pulley Holder Engine Fan Clutch Removal Wrench Tool Set is a specialized 3-piece service configuration engineered to trap and lock bolt-on pulleys by their mounting fasteners during mechanical maintenance. This mechanical assembly delivers a manual 23.5-inch overall reach to facilitate deep access into cramped engine compartments without component slippage. Designed for domestic truck architectures including Ford, Dodge, GM, and Jeep engine blocks, this system provides necessary leverage when paired with standard fan clutch wrenches, solving the problem of maintaining inventory for multiple size-specific holding tools during water pump swaps and thermostatic fan assembly replacements.

Best Used For:

  • Thermostatic Fan Assembly Service: Counter-holding bolt-on water pump pulleys by their mounting bolts to break stubborn fan clutch threads loose.
  • High-Torque Pulley Retention: Stabilizing engine drive pulleys safely to prevent free rotation while loosening or tightening hardware.
  • Deep Bay Engine Diagnostics: Reaching restricted mechanical clearances in light trucks and utility vehicles using an extended leverage bar chassis.

Key Performance & Safety Features

  • Universal Fastener Interface: Anchors onto existing pulley hardware across major domestic truck applications to eliminate specialized wrench sizing.
  • Extended 23.5-Inch Chassis: Elongated handle bar provides substantial mechanical advantage and safety margins away from sharp fan blades.
  • Multi-Vehicle Engine Compatibility: Calibrated to service Ford 2.8L to 5.0L, Dodge 3.9L to 8.0L V10, and GM 4.3L to 5.7L gasoline and diesel platforms.
  • Three-Piece Configuration: Modular element construction allows adaptive spacing configurations to conform with variable structural bolt circles.
  • Industrial Steel Geometry: Rigid metal structural components resist bending and deflection under rigorous field torque applications.

What's Included

  • (1) GEARWRENCH 3900 Universal Pulley Holder Assembly (3-Piece Set)

Technical Specifications

Brand Name GEARWRENCH
Model Number 3900
Tool Type Engine Service Tools
Overall Length 23.5 in.
Tool Weight 1.50 lbs.
Set Piece Count 3 Pieces
Magnetic Core No
Packaging Design Carded
UPC Code 082171390005
Warranty Profile Full Lifetime Warranty 
Pro-Tip: Before applying heavy counter-torque to lock the pulley, ensure that the adjustable holding pins are seated fully flush against the flat base of the pulley mounting bolts. This configuration guarantees full contact area and prevents structural bolt heads from bending or shearing under intense lever pressure.