Enerpac Back-Up Spanner

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Double Acting
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1.21A for DC 24V
2.50A for DC 12V

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110VAC
12VDC
24VDC

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13.2 gpm
24.0 gpm

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G1/2" BSPP Straight Thread
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-13º to 150ºF
-13º to 180ºF
-40º to 180º F

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psi
psi, bar

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1/2” NPT
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7/16-20 SAE

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304 Stainless Steel Case & Bezel
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1.6% FSD
1% FSD
2% FSD

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1.5 inches
2 inches
2.5 inches
4 inches

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Single-Acting (Spring Return)

Mounting Flange

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2 & 4 Bolt / SAE B / 4" Pilot
2 Bolt / SAE A / 3.25" Pilot
2 Bolt / SAE B / 4.00" Pilot
4 Bolt Std / 1.748 Dia / .120 Pilot

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NPT - 3/8"
ORB - 6

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2,500
2500

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36 - 72"
36"

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70-1790 SSu

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2500 PSI
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-40°F to +212°F (-40°C to +100°C)
-40°F to +257°F (-40°C to +125°C)

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Showing all 12 models

Browse all Torque Wrench Accessories →

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All 12 Enerpac Back-Up Spanner models & pricestap to compare every model

Model	Product	Price	Availability
BUS01	Enerpac BUS01, Back-Up Spanner, 1-1/16" - 1-1/4" Hexagon Size Range	$300.18	In stock
BUS02	Enerpac BUS02, Back-Up Spanner, 1-7/16" - 1-5/8" Hexagon Size Range	$427.18	In stock
BUS03	Enerpac BUS03, Back-Up Spanner, 1-13/16" - 2" Hexagon Size Range	$417.73	In stock
BUS04	Enerpac BUS04, Back-Up Spanner, 2-3/16" - 2-3/8" Hexagon Size Range	$501.70	In stock
BUS05	Enerpac BUS05, Back-Up Spanner, 2-9/16" - 2-3/4" Hexagon Size Range	$655.99	In stock
BUS06	Enerpac BUS06, Back-Up Spanner, 2-15/16" - 3-1/8" Hexagon Size Range	$673.83	In stock
BUS07	Enerpac BUS07, Back-Up Spanner, 3-1/2" - 3-7/8" Hexagon Size Range	$957.22	In stock
BUS08	Enerpac BUS08, Back-Up Spanner, 4-1/4" - 4-5/8" Hexagon Size Range	$1,068.47	In stock
BUS09	Enerpac BUS09, Back-Up Spanner, 85 - 90mm Hexagon Size Range	$909.99	In stock
BUS10	Enerpac BUS10, Back-Up Spanner, 3-3/4" - 3-15/16" Hexagon Size Range	$969.81	In stock
BUS11	Enerpac BUS11, Back-Up Spanner, 4-1/8" - 4-15/16" Hexagon Size Range	$1,027.54	In stock
BUS12	Enerpac BUS12, Back-Up Spanner, 115 - 120mm Hexagon Size Range	$1,083.17	In stock

Enerpac Back-Up Spanner — common questions

Are these genuine Enerpac products?

Yes. Every Enerpac product we list is factory-new and genuine — not aftermarket or remanufactured. Item SKUs match the manufacturer part numbers, so you can verify any model directly against Enerpac documentation.

Can you help me choose the right model?

Yes — Northern Hydraulics has supplied hydraulic equipment since 1963. Call (800) 823-4937 with your application details, or send a quote request with the model you are replacing and we will cross-reference it to the right Enerpac part.

Do you offer volume pricing on Enerpac products?

Yes. For multi-unit or recurring orders, use the Request a Quote button — volume pricing on Enerpac equipment is quoted case by case, usually within one business day.

Which Back-Up Spanner Is Right for the Job?

Cross-Referencing Enerpac Back-Up Spanner

Enerpac BUS01, Back-Up Spanner, 1-1/16" – 1-1/4" Hexagon Size Range

Enerpac BUS03, Back-Up Spanner, 1-13/16" – 2" Hexagon Size Range

Enerpac BUS02, Back-Up Spanner, 1-7/16" – 1-5/8" Hexagon Size Range

Enerpac BUS04, Back-Up Spanner, 2-3/16" – 2-3/8" Hexagon Size Range

Enerpac BUS05, Back-Up Spanner, 2-9/16" – 2-3/4" Hexagon Size Range

Enerpac BUS06, Back-Up Spanner, 2-15/16" – 3-1/8" Hexagon Size Range

Enerpac BUS09, Back-Up Spanner, 85 – 90mm Hexagon Size Range

Enerpac BUS11, Back-Up Spanner, 4-1/8" – 4-15/16" Hexagon Size Range

Enerpac BUS08, Back-Up Spanner, 4-1/4″ – 4-5/8″ Hexagon Size Range

Enerpac BUS10, Back-Up Spanner, 3-3/4" – 3-15/16" Hexagon Size Range

Enerpac BUS12, Back-Up Spanner, 115 – 120mm Hexagon Size Range

Enerpac BUS07, Back-Up Spanner, 3-1/2" – 3-7/8" Hexagon Size Range

Enerpac Back-Up Spanner — common questions