Description
Macnaught BOP205X 16-55 Gallon Battery Operated
DEF / Oil Stem Kit
The Macnaught BOP205X Stem Kit is a versatile battery-powered delivery system engineered for fluid transfer from 16 to 55 gallon containers. Designed for maintenance, service bays, and industrial environments, this stem kit delivers controlled dispensing of a wide range of commonly used fluids when paired with a compatible 18V powerhead.
Suitable Fluids
This stem kit is purpose-built to handle a broad set of shop and industrial liquids. It performs reliably with:
- Diesel Exhaust Fluid (DEF / Urea)
- Engine oil up to SAE 140 / ISO 680 viscosity
- Gear oil within the same viscosity range
- Hydraulic oil up to SAE 140 viscosity
- Automatic Transmission Fluid (ATF)
- Engine coolant
This fluid range makes the BOP205X stem an excellent choice where flexibility is needed without changing stems for different fluids.
Key Features
- Stainless steel pump stem with integral adjusting sleeve for 1655 gallon drums
- 5 ft delivery hose with on-demand control nozzle
- Stainless construction for DEF service and longer life
- Compact, portable design that mates with a separate 18V battery powerhead
- Sealed wetted parts for durability and reduced maintenance
- Delivers fluids cleanly with minimal spillage
- Backed by a 2-year manufacturer warranty
Technical Specifications
| Part Number | BP205X-DUNA |
| Fits Drum Sizes | 1655 gallon containers |
| Compatible Fluids | DEF/Urea, oils up to SAE 140 / ISO 680, ATF, coolants |
| Flow Rate | Up to 1.5+ GPM at 68F (viscosity and temperature dependent) |
| Hose | 5 ft of ” hose with on-demand nozzle |
| Battery | 18V Li-Ion (powerhead sold separately) |
| Serviceability | Fully serviceable |
| Warranty | 2 years |
Typical Applications
- DEF transfer from drums in maintenance bays and fleet garages
- Engine oil and gear oil dispensing
- Hydraulic oil servicing
- Transmission fluid refills
- Coolant handling and topping off
Usage Notes
- The stem requires a compatible 18V Macnaught battery powerhead (sold separately).
- After using for DEF, flush the stem with clean water to prevent crystallization and ensure long life.
- Do not use with gasoline, diesel fuel, or other flammable liquids.









