12V 24V Self Priming Diesel Transfer Pump | Replaceable Vane Core
News 2026年 9月 17日 73
1. Overview
This DC rotary vane self-priming diesel pump is a heavy-duty portable fuel transfer pump specially designed for diesel and kerosene transfer.
Different from disposable cheap pumps on the market, this model features fully replaceable pump core and vanes, which greatly reduces your customer’s maintenance cost and replacement frequency.
Suitable for gas station auxiliary refueling, oil barrel refueling, agricultural tractors, construction machinery, trucks and outdoor mobile fuel transfer scenarios.
Strict Reminder:
This pump is NON-EXPLOSION-PROOF.
ONLY for diesel / kerosene.
DO NOT pump gasoline, alcohol, chemical liquid or high-viscosity engine oil.
For applications requiring complete fuel dispensing equipment, you can also view our Fuel Dispensers.
Need help selecting the right diesel transfer pump? Contact us for model selection, specifications and wholesale pricing.
2. 12V vs 24V Diesel Transfer Pump
The pump is available in two DC voltage models for different equipment and battery systems.
| Model | Power (V) | Current (A) | Flow (L/min) | Suction (m) | Head (m) |
|---|---|---|---|---|---|
| ZYB120-2 | DC 24 | 8.5 | 50 | 3 | 5.5 |
| ZYB90 | DC 12 | 11 | 35 | 3 | 3.5 |
Matching pipe inner diameter: 25mm
Note: Voltage tolerance ±12%. Suction performance will drop if suction pipeline has air leakage.
The 12V model is suitable for 12V battery systems, while the 24V model provides higher flow and head for applications using a 24V power supply.
3. Core Selling Points
- True self-priming design, no need frequent oil filling
- Two complete models for different working scenarios: 12V / 24V
- Full maintainable structure: replaceable pump core, vanes, filter and fuse
- Aluminum alloy pump head + durable copper motor
- Low noise, stable flow, strong suction
- Direct battery power supply, easy outdoor operation
- Complete spare parts supply for distributors
- Strict over-current fuse protection to protect motor
4. Working Principle
This is a rotary vane self-priming pump.
When the motor runs, the rotor drives the sliding vanes. Under centrifugal force, vanes closely fit the pump cavity. The internal volume changes periodically to form vacuum suction, realizing automatic self-priming and continuous fuel delivery.
5. Installation & Operation Guide
- Before use, confirm that the power supply matches the pump voltage, voltage tolerance ±12%.
- DC fuel pump has positive (+) and negative (-) poles. Red wire is positive. Wrong polarity will cause pump reverse rotation and no oil output.
- Install inlet and outlet pipes according to the arrow marks. Inlet pipe and joints must be airtight to guarantee suction.
- Install matching filter screen on inlet pipe to prevent hard impurities from damaging pump core and scrapers. Clean dirt on filter regularly. Do NOT wrap filter with silk stockings for over-filtration.
- In use: pull out the protective cover of the filter screen, then turn on power switch. After use: cover the protective cover and turn off power switch.
- The pump can work continuously. Dry running without oil must NOT exceed 5 minutes, otherwise pump core and scrapers will be damaged by heat from friction.
Contact Us: If you need a complete diesel transfer pump configuration, matching filter or spare parts, contact us for available options.
6. Complete Maintenance Instruction
1.Daily maintenance: Depending on different working environments, clean the filter screen after 60 minutes of operation to ensure dirt will not block the mesh holes. Tighten pipe clamps to prevent the filter from falling into the oil barrel.
2.If the motor runs normally but the oil output is low or no oil comes out, follow the pump core replacement steps:
① Loosen the screws and remove the pump end cover
② Take out the complete pump core assembly
③ Clean impurities inside the pump cavity
④ Install vanes in the correct direction: the bevel side of the blade follows the outer circle of the pump core; flat slot outward, round slot inward
⑤ Reinstall the pump core and tighten the end cover
Incorrect vane installation will lead to weak suction or even no suction.
3.If the motor does not work, check whether the fuse in the fuse box is blown. If blown, replace it with the corresponding fuse.
Fuse replacement:
- 12V model: 25A white fuse
- 24V model: 15A blue fuse
Do NOT use higher current fuse to avoid motor burnout.
For additional fuel dispenser components and maintenance-related products, see our Fuel Dispenser Parts category.
7. Fault Troubleshooting
| Fault | Possible Reason | Treatment Method |
|---|---|---|
| No oil output at first use | (+)(-) poles reversed; air leakage on inlet pipe; no liquid added before startup | Connect (+)(-) poles correctly; connect inlet pipeline tightly and lock clamps; add a small amount of pumped liquid |
| Low oil output | Low power voltage; suction / head exceeds rating; foreign matter blocks inlet filter | Raise power voltage, but cannot exceed voltage tolerance; adjust suction and head; clear foreign matters |
| Motor runs but cannot pump oil | Long dry running burns pump core and blades; no filter, sand and stone enter pump | Replace pump core; clean or replace pump core |
| Motor does not work | Foreign matter stuck in pump core, motor stuck, fuse burned | Clear foreign matter and replace fuse |
8. Spare Parts Support
We supply full sets of consumable spare parts in bulk:
- Replaceable pump core + vane set
- Inlet filter screen
- 12V/24V dedicated fuse
Distributors can purchase spare parts separately to support after-sales service locally.
This replaceable structure helps distributors reduce complete-pump replacement costs and maintain local after-sales support.
9. FAQ
Q1: Can this pump pump gasoline / petrol?
A: No. This is a non-explosion-proof vane pump, only suitable for diesel and kerosene. Gasoline pumping will cause serious fire and explosion risk.
Q2: What is the maximum suction height?
A: Rated suction lift 3m. We suggest actual working height ≤2m for stable performance.
Q3: Can I replace the internal vanes and pump core?
A: Yes. This is our biggest advantage over ordinary disposable pumps. All wearing parts can be replaced without changing the whole pump.
Q4: Can the pump run continuously?
A: Yes when pumping diesel. Dry running must not exceed 5 minutes.
Q5: What size hose do I need?
A: Standard 25mm inner diameter hose. Use rigid pipe to avoid vacuum collapse.
10. Warranty Term
- Motor body: 12 months warranty
- Consumable parts (pump core, vanes, filter, fuse): not covered by warranty, belongs to normal wearing parts
11. Get Wholesale Price & OEM Service
We support bulk wholesale, customized logo and OEM packing.
Please contact us for:
- Latest wholesale price
- MOQ & stock
- Shipping cost & delivery time
- Spare parts bulk order
- OEM packaging requirements
If you are a distributor, equipment dealer or project buyer looking for a reliable diesel transfer pump supply, contact us for product specifications, pricing and spare parts support.