Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

PROTO J4056-4 Reversible Puller Jaw, 4 in Max Reach, 5 in Overall Length - Replacement Jaws
PROTOReplacement Jaws

PROTO J4056-4 Reversible Puller Jaw, 4 in Max Reach, 5 in Overall Length

The PROTO J4056-4 is a reversible replacement jaw for pullers, with a 4-inch maximum reach and a 5-inch overall length. This reversible jaw is designed for use with PROTO puller systems.

SKU 3G-OTH-294544

Also listed as: J40564 · J4056 4

Brand
PROTO
Item
J4056-4 Reversible Puller Jaw, 4 in Max Reach, 5 in Overall Length
Category
Replacement Jaws
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

PROTO
Manufacturer Part Number
J4056-4
Type
4 in Reach - Max, Reversible Jaw, J4056-4

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO J4056-4 is a reversible replacement jaw for pullers, with a 4-inch maximum reach and a 5-inch overall length. This reversible jaw is designed for use with PROTO puller systems.

Frequently Asked Questions

What is the PROTO J4056-4 reversible puller jaw used for?

The PROTO J4056-4 is a reversible replacement jaw designed for use with PROTO puller systems. It is used in industrial maintenance and repair applications to grip and remove gears, bearings, and pulleys. The reversible design allows the jaw to be positioned for either internal or external pulling tasks.

What are the specifications of the PROTO J4056-4 reversible puller jaw?

The PROTO J4056-4 reversible puller jaw has a 4-inch maximum reach and a 5-inch overall length. It is a replacement jaw for PROTO puller systems. The manufacturer part number is J4056-4, and it is made by PROTO. This jaw is reversible for versatile pulling applications.

Where to buy the PROTO J4056-4 reversible puller jaw worldwide?

You can source the PROTO J4056-4 reversible puller jaw from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine PROTO replacement jaws for your puller systems.

How to select the correct reversible puller jaw for a PROTO puller?

To select the correct reversible puller jaw for a PROTO puller, match the jaw's maximum reach and overall length to your application. The PROTO J4056-4 offers a 4-inch reach and 5-inch length. Ensure the jaw is compatible with your PROTO puller model. For guidance, consult the PROTO puller system documentation or contact 3G Electric.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

PROTO Products

3G Electric supplies PROTO replacement jaws. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Reversible jaw puller with 5-ton pulling capacity, 3 1/4 in jaw reach, and 0.5 in jaw thickness. Suitable for removing gears, bearings, pulleys, and other press-fit components from shafts in industrial maintenance and repair applications
WESTWARD
Reversible jaw puller with 5-ton pulling capacity, 3 1/4 in jaw reach, and 0.5 in jaw thickness. Suitable for removing gears, bearings, pulleys, and other press-fit components from shafts in industrial maintenance and repair applications
Two-jaw external-grip puller with 1 in to 8 in jaw spread, 5 3/4 in jaw reach, and 0.5 in jaw thickness. Thread size 9/16"-20. Used for removing gears, bearings, and pulleys in maintenance and repair tasks
GEARWRENCH
Two-jaw external-grip puller with 1 in to 8 in jaw spread, 5 3/4 in jaw reach, and 0.5 in jaw thickness. Thread size 9/16"-20. Used for removing gears, bearings, and pulleys in maintenance and repair tasks
Zero-backlash curved jaw spider for coupling sizes JC12/JS12/MJC19/MJS19. Outside diameter 3/4 in, power rating 0.0159 hp. Used in motion-control systems to connect shafts with accurate torque transmission
RULAND MANUFACTURING
Zero-backlash curved jaw spider for coupling sizes JC12/JS12/MJC19/MJS19. Outside diameter 3/4 in, power rating 0.0159 hp. Used in motion-control systems to connect shafts with accurate torque transmission
This zero-backlash curved jaw spider from RULAND MANUFACTURING has a 3/4 in outside diameter and is rated for 0.0476 hp. It is designed for use with JC12/JS12/MJC19/MJS19 coupling sizes. The insert transmits torque while dampening vibration and accommodating minor misalignment, suitable for motion control and conveyor systems
RULAND MANUFACTURING
This zero-backlash curved jaw spider from RULAND MANUFACTURING has a 3/4 in outside diameter and is rated for 0.0476 hp. It is designed for use with JC12/JS12/MJC19/MJS19 coupling sizes. The insert transmits torque while dampening vibration and accommodating minor misalignment, suitable for motion control and conveyor systems

More from PROTO

View all PROTO parts
Replacement jaw for puller systems, designed to grip and remove gears, bearings, and pulleys. Overall length 10 inches, maximum reach 7 inches
PROTO
Replacement jaw for puller systems, designed to grip and remove gears, bearings, and pulleys. Overall length 10 inches, maximum reach 7 inches
Replacement jaw for puller systems, with a 10-inch overall length and a 7-inch maximum reach. Used in industrial maintenance to grip and extract press-fit components such as bearings and gears
PROTO
Replacement jaw for puller systems, with a 10-inch overall length and a 7-inch maximum reach. Used in industrial maintenance to grip and extract press-fit components such as bearings and gears
Replacement jaw for pullers, with an overall length of 7 9/16 inches and a maximum reach of 4 11/16 inches. Suitable for removing gears, bearings, and pulleys in confined spaces where standard jaws cannot fit
PROTO
Replacement jaw for pullers, with an overall length of 7 9/16 inches and a maximum reach of 4 11/16 inches. Suitable for removing gears, bearings, and pulleys in confined spaces where standard jaws cannot fit
Replacement jaw for cap screw pullers, designed for gripping and extracting cap screws. Overall length of 6 inches with a maximum reach of 2 inches. Suitable for use in maintenance and repair of industrial machinery
PROTO
Replacement jaw for cap screw pullers, designed for gripping and extracting cap screws. Overall length of 6 inches with a maximum reach of 2 inches. Suitable for use in maintenance and repair of industrial machinery
Replacement jaw for puller systems, featuring a dual-reach configuration with a 4-inch maximum reach and 6-inch overall length. Used in maintenance and repair tasks to grip and extract components such as bearings, gears, and pulleys
PROTO
Replacement jaw for puller systems, featuring a dual-reach configuration with a 4-inch maximum reach and 6-inch overall length. Used in maintenance and repair tasks to grip and extract components such as bearings, gears, and pulleys
Replacement jaw for puller frames used in mechanical disassembly of press-fit components such as gears and bearings. Overall length 6 in, maximum reach 4 in
PROTO
Replacement jaw for puller frames used in mechanical disassembly of press-fit components such as gears and bearings. Overall length 6 in, maximum reach 4 in
Replacement reversible jaw for puller systems, with a 6-inch maximum reach and 7-inch overall length. The reversible design allows positioning for internal or external pulling tasks, such as removing gears, bearings, and pulleys in maintenance and repair applications
PROTO
Replacement reversible jaw for puller systems, with a 6-inch maximum reach and 7-inch overall length. The reversible design allows positioning for internal or external pulling tasks, such as removing gears, bearings, and pulleys in maintenance and repair applications