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

3G Electric
RFQ CartGet a QuoteSign inSign up
ENERPAC BUS03 Back-Up Spanner - Backup Spanners
ENERPACBackup Spanners

ENERPAC BUS03 Back-Up Spanner

The ENERPAC Back-Up Spanner (MPN BUS03) is a backup spanner with an overall length of 5 5/8 inches, a minimum hex size of 1 13/16 inches, and a maximum hex size of 2 inches.

SKU 3G-OTH-170094

Also listed as: BUS 03 · BUS-03

Brand
ENERPAC
Item
BUS03 Back-Up Spanner
Category
Backup Spanners
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

ENERPAC
Manufacturer Part Number
BUS03
Product Type
Back-Up Spanner

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

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

Product Description

The ENERPAC Back-Up Spanner (MPN BUS03) is a backup spanner with an overall length of 5 5/8 inches, a minimum hex size of 1 13/16 inches, and a maximum hex size of 2 inches.

Frequently Asked Questions

What is the ENERPAC Back-Up Spanner BUS03 used for?

The ENERPAC Back-Up Spanner BUS03 is used to hold hydraulic cylinder components stationary during assembly or disassembly. It prevents rotation of the cylinder body while torque is applied to the gland or end cap, ensuring safe and accurate maintenance in industrial pressing and lifting applications.

What are the specifications of the ENERPAC Back-Up Spanner BUS03?

The ENERPAC Back-Up Spanner BUS03 has an overall length of 5 5/8 inches, a minimum hex size of 1 13/16 inches, and a maximum hex size of 2 inches. It is designed specifically for use with ENERPAC hydraulic cylinders and is identified by manufacturer part number BUS03.

Where to buy the ENERPAC Back-Up Spanner BUS03 worldwide?

3G Electric supplies the ENERPAC Back-Up Spanner BUS03 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact our team for a quote and lead time; we source genuine ENERPAC parts through our global supply network.

How to select the correct ENERPAC Back-Up Spanner for a cylinder?

To select the correct ENERPAC Back-Up Spanner, match the hex size of the cylinder's gland or end cap to the spanner's minimum and maximum hex range. The BUS03 fits hex sizes from 1 13/16 in to 2 in. Always verify the cylinder model against ENERPAC's compatibility chart to ensure proper fit and safe operation.

Used in

Common applications for ENERPAC
Heavy equipment maintenance — ENERPAC HCL25010 lock nut ram for lifting and holding large components during repair.
Automated machining — ENERPAC SLRD51 swing clamp cylinder for fixturing parts in CNC workholding systems.
Bolted joint assembly — ENERPAC ERT19024 extended reaction tube with RSL series torque wrenches for flange bolting.
Hydraulic power generation — ENERPAC ZE4408SB-T electric pump for powering torque tools in industrial plants.
Structural testing — ENERPAC A243 flat base attachment for RC series cylinders in load frame applications.
Field service operations — ENERPAC ZU4420MB-G portable pump for remote hydraulic tool operation.

ENERPAC Products

3G Electric supplies ENERPAC backup spanners. 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
This 50-ton manual H-frame hydraulic press is designed for pressing, bending, straightening, and assembly operations. It provides controlled force for heavy-duty tasks such as bearing removal, bushing pressing, and metal forming in industrial maintenance and repair settings
ENERPAC
This 50-ton manual H-frame hydraulic press is designed for pressing, bending, straightening, and assembly operations. It provides controlled force for heavy-duty tasks such as bearing removal, bushing pressing, and metal forming in industrial maintenance and repair settings
ENERPAC
ENERPAC
Replacement parts and accessories kit for hydraulic ram spreaders. Compatible with SWi12/14TMEX, SWi20/25TIEX, and SWi20/25TEEX models. Used in industrial bolting and tensioning applications. Pump not included
Single-acting hydraulic ram with 15-ton nominal capacity and 6-inch stroke. Steel construction. Used for lifting, pressing, and positioning heavy loads in industrial maintenance, construction, and manufacturing applications
ENERPAC
Single-acting hydraulic ram with 15-ton nominal capacity and 6-inch stroke. Steel construction. Used for lifting, pressing, and positioning heavy loads in industrial maintenance, construction, and manufacturing applications
Manual H-frame hydraulic press with 25-ton capacity. Designed for pressing, bending, straightening, and assembly tasks in industrial maintenance, fabrication, and repair shops. The H-frame construction provides stability for heavy-duty operations such as bearing removal and metal forming
ENERPAC
Manual H-frame hydraulic press with 25-ton capacity. Designed for pressing, bending, straightening, and assembly tasks in industrial maintenance, fabrication, and repair shops. The H-frame construction provides stability for heavy-duty operations such as bearing removal and metal forming
The ENERPAC RC1510 is a single-acting hydraulic ram with a nominal capacity of 15 tons and a 10-inch stroke. Constructed from steel, it is used for lifting, pressing, and positioning heavy loads in industrial maintenance, construction, and manufacturing applications
ENERPAC
The ENERPAC RC1510 is a single-acting hydraulic ram with a nominal capacity of 15 tons and a 10-inch stroke. Constructed from steel, it is used for lifting, pressing, and positioning heavy loads in industrial maintenance, construction, and manufacturing applications
Manual H-frame hydraulic press with 25-ton capacity for pressing, bending, straightening, and assembly tasks. Suitable for industrial maintenance, fabrication, and repair applications requiring controlled force
ENERPAC
Manual H-frame hydraulic press with 25-ton capacity for pressing, bending, straightening, and assembly tasks. Suitable for industrial maintenance, fabrication, and repair applications requiring controlled force

More from ENERPAC

View all ENERPAC parts →
Back-up spanner with 6 1/2 in overall length, minimum hex size 2 3/16 in, and maximum hex size 2 3/8 in. Used to hold hex nuts on hydraulic cylinders or tools during tightening or loosening of the cylinder body, preventing rotation in maintenance and installation tasks
ENERPAC
Back-up spanner with 6 1/2 in overall length, minimum hex size 2 3/16 in, and maximum hex size 2 3/8 in. Used to hold hex nuts on hydraulic cylinders or tools during tightening or loosening of the cylinder body, preventing rotation in maintenance and installation tasks
Back-up spanner used to hold the hex end of a hydraulic cylinder or tool during installation or removal, preventing rotation while torque is applied. Features a minimum hex capacity of 4 1/4 in and a maximum hex capacity of 4 5/8 in. Suitable for industrial maintenance and heavy equipment repair applications
ENERPAC
Back-up spanner used to hold the hex end of a hydraulic cylinder or tool during installation or removal, preventing rotation while torque is applied. Features a minimum hex capacity of 4 1/4 in and a maximum hex capacity of 4 5/8 in. Suitable for industrial maintenance and heavy equipment repair applications
Back-up spanner for holding hex ends of hydraulic cylinders or rams during installation or removal. Accommodates hex sizes from 1 1/16 in to 1 1/4 in. Used in industrial maintenance and heavy equipment repair
ENERPAC
Back-up spanner for holding hex ends of hydraulic cylinders or rams during installation or removal. Accommodates hex sizes from 1 1/16 in to 1 1/4 in. Used in industrial maintenance and heavy equipment repair
Back-up spanner for holding the hex collar of hydraulic cylinders or jacks during installation or removal, preventing rotation. Hex range 4 1/8 to 4 15/16 in. Overall length 11 3/4 in
ENERPAC
Back-up spanner for holding the hex collar of hydraulic cylinders or jacks during installation or removal, preventing rotation. Hex range 4 1/8 to 4 15/16 in. Overall length 11 3/4 in
Back-up spanner used to hold the hex of a hydraulic cylinder or accessory stationary while tightening or loosening connections. Prevents rotation during installation or removal. Hex range: 3 11/32 in to 3 35/64 in
ENERPAC
Back-up spanner used to hold the hex of a hydraulic cylinder or accessory stationary while tightening or loosening connections. Prevents rotation during installation or removal. Hex range: 3 11/32 in to 3 35/64 in
Back-up spanner for holding the hex end of hydraulic cylinders or components stationary during assembly or disassembly. Features a minimum hex capacity of 3 3/4 in and a maximum hex capacity of 3 15/16 in. Suitable for industrial maintenance and heavy equipment repair applications
ENERPAC
Back-up spanner for holding the hex end of hydraulic cylinders or components stationary during assembly or disassembly. Features a minimum hex capacity of 3 3/4 in and a maximum hex capacity of 3 15/16 in. Suitable for industrial maintenance and heavy equipment repair applications
Back-up spanner for holding hex nuts during installation or removal of hydraulic cylinders and similar equipment. Hex range: 2 15/16 in min to 3 1/8 in max. Prevents rotation of components for safe assembly and disassembly in industrial maintenance
ENERPAC
Back-up spanner for holding hex nuts during installation or removal of hydraulic cylinders and similar equipment. Hex range: 2 15/16 in min to 3 1/8 in max. Prevents rotation of components for safe assembly and disassembly in industrial maintenance
Back-up spanner used to hold the hex of a hydraulic cylinder or component stationary while tightening or loosening the retaining nut. Minimum hex capacity 4 17/32 in, maximum hex capacity 4 23/32 in. Overall length 12 5/8 in
ENERPAC
Back-up spanner used to hold the hex of a hydraulic cylinder or component stationary while tightening or loosening the retaining nut. Minimum hex capacity 4 17/32 in, maximum hex capacity 4 23/32 in. Overall length 12 5/8 in