Hydraulic Ball Joint Puller, 39mm Drive Nut with Inspection Window

Brief Overview

This is a heavy-duty hydraulic ball joint puller designed for professional automotive technicians and suspension specialists. The 39mm drive nut positions it squarely in the mid-to-heavy truck and industrial vehicle segment—ideal for vehicles in the 5–10 ton range. The integrated inspection window allows you to monitor screw engagement and thread alignment without disassembly, reducing setup errors and rework time. Whether you're running a busy shop floor or stocking a distributor inventory, this tool addresses a genuine market gap between lightweight manual pullers and oversized truck extractors. For shops handling mixed vehicle sizes, pairing this with a three-piece universal ball joint puller set or a heavier 8-ton capacity hydraulic separator rounds out your suspension removal capability.

Key Features

• 39mm Drive Nut: Matched to common medium-duty truck and bus suspension geometries
• Inspection Window: Rectangular cutout on the forged body reveals internal threading, enabling precise screw positioning and preventing over-tightening
• Hydraulic Operation: Delivers consistent, controlled force—critical for modern suspension components with tighter tolerances
• Heavy Cast-Steel Construction: Black powder-coated finish resists corrosion; robust fork arms withstand repeated shock loads
• Threaded Ram with Ball Tip: Precision-machined forcing screw with rounded contact point minimizes damage to ball joint seats
• Knurled Adjustment Cap: Allows manual fine-tuning before hydraulic pressure is applied

Business Advantages for Resellers

• High Demand Segment: 39mm size fills the sweet spot between small passenger-car pullers and industrial truck tools—strong repeat order potential
• Professional-Grade Durability: Built to survive thousands of cycles in high-volume shops; minimal warranty returns
• Diagnostic Feature: The window is a genuine differentiator that reduces comeback work and boosts technician confidence
• Margin-Friendly: Hydraulic tools command higher margins than manual equivalents while offering faster ROI for shop owners
• Fleet and Independent Appeal: Municipal fleets, commercial transport operators, and independent repair shops all stock this category

Technical Specifications

Specification	Value
Drive Nut Size	39mm
Body Material	Cast Steel, Black Powder-Coated
Ram Type	Threaded, Ball-Tip Forcing Screw
Operation	Hydraulic (External Pump Required)
Inspection Window	Yes – Rectangular Cutout on Body
Fork Configuration	C-Type / Yoke-Style
Typical Application Range	Medium-Duty Trucks, Buses, Industrial Vehicles (5–10 Ton Class)
Finish	Matte Black with Machined Threading

Why This Tool Matters

Suspension removal on medium-duty vehicles demands precision and control. Manual ball joint pullers risk cross-threading or applying uneven force; undersized hydraulic tools fail under load. This 39mm hydraulic puller strikes the balance: enough power to break stubborn corrosion bonds, yet compact enough to fit tight engine bays. The window feature is not cosmetic—it's a practical safeguard that catches misalignment before pressure is applied, saving both components and reputation.

Stock this tool if your customer base includes commercial fleets, truck dealerships, or multi-bay independent shops. The 39mm size moves steadily in markets with medium-duty trucks and older-generation bus fleets.

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Ready to add precision suspension removal to your catalog? This hydraulic puller is built for shops that demand reliability and accuracy.