The relief balance serves as a safety and pressure-regulating feature. Its main function is to prevent over-pressurization within the pump and downstream components.
Roughneck Heavy-Duty 5:1 Oil Pump with Release Valve, 11 GPM, 46in. Suction Tube

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Shipping:
Backordered: Order now to reserve yours -
Estimated to ship 07/16/26Store Pickup:
- Includes 46in. suction tube for deep drum reach
- Heavy-duty suction tube is zinc-plated for durability and corrosion resistance
- 5:1 pressure ratio for efficient pumping power
- Operates with 70–180 PSI air inlet pressure
- 870 PSI max. fluid pressure for high-demand applications
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Description
Key Specs
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Q & A
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Product Summary
What's Included
- (1) Oil pump (1) Release valve
Downloads
ENGINEERED FOR EFFICIENCY
The Roughneck® 5:1 OIL PUMP IS DESIGNED to deliver fast and reliable service, streamlining operations with its high flow rate and ROBUST PRESSURE CAPABILITIES
VERSATILE APPLICATION
This pump is perfectly suited for TRANSFERRING LARGE VOLUMES OF OIL, particularly in settings requiring frequent servicing of HEAVY MACHINERY or LARGE VEHICLES
Features + Benefits
- Includes 46in. suction tube for deep drum reach
- Heavy-duty suction tube is zinc-plated for durability and corrosion resistance
- 5:1 pressure ratio for efficient pumping power
- Operates with 70–180 PSI air inlet pressure
- 870 PSI max. fluid pressure for high-demand applications
- Built-in release valve protects pump and system components
- Includes 3/4in. to 1/2in. adapter for connection flexibility
- 1/4in. air inlet and 3/4in. oil output port for optimal flow
- Measures 7-7/8in.L x 6-3/8in.W x 63-1/2in.H
Key Specs
| Attribute | Specification |
|---|---|
item# | 28702 |
Brand | Roughneck |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 34.0 LB |
Flow Rate | 11 GPM |
| Attribute | Specification |
|---|---|
Max. PSI | 870 |
Max. Total Head | 1 ft |
Max. Suction Lift | 3 ft |
Inlet Port | 0.75 in |
Outlet Port | 0.75 in |
Reviews
Questions & Answers
Questions
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· a year ago
What purpose does the relief balance serve on the 5.1 pump?
1 answer-
RoughneckExpert12· a year ago
Helpful?
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· 3 years ago
Can this pump be used for antifreeze?
1 answer-
RoughneckExpert12· 3 years ago
This pump cannot be used with antifreeze. Item 58267 is an air operated oil pump that is approved for use with antifreeze.
Helpful?
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· 4 years ago
will the threads on the suction tube thread in a 2 inch
1 answer-
RoughneckExpert7· 4 years ago
This has a bung adapter which has 2" thread.
Helpful?
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· 8 years ago
Will this pump install into a 55 gallon drum?
1 answer-
RoughneckExpert10· 8 years ago
This product will not work with 55 gallon drums as the pump has a non-adjustable suction tube that is 46 inches. Most 55 gallon drums are approximately 35 inches tall.
Helpful?
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· 11 years ago
Is the suction tube adjustable?
1 answer-
RoughneckExpert7· 3 years ago
The 46" suction tube is not adjustable. Please view item #58281. This includes 8" and 20" extension tubes.
Helpful?
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Accessories We Recommend
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Warranty
Manufacturer's Warranty
1 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Specifications
11 GPM
6 GPM
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870
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1 ft
0 ft
0 ft
0 ft
3 ft
0 ft
0 ft
0 ft
0.75 in
0.75 in
0 in
0 in
0.75 in
0.5 in
0 in
0 in
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lb
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4.5 x 5.75 x 5.0 in
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Steel
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