🔧 SUNTEC J4PBB1000G – Single-Stage Fuel Oil Pump (Right-Hand Rotation, LH Nozzle, 200 PSI Max)
🔍 Product Overview
The SUNTEC J4PBB1000G is a high-efficiency single-stage oil pump engineered for medium-capacity oil burners ranging from 400 to 3000 kW.
It’s designed to deliver reliable fuel performance for No. 4 and lighter oils, providing steady combustion and long-term durability.
With a pressure range of 100–200 PSI and flow rates of 22 GPH at 1725 RPM and 54 GPH at 3450 RPM, this pump ensures consistent operation for commercial and industrial burner systems.
The right-hand rotation and left-hand nozzle location configuration make it an excellent replacement for a broad list of older Suntec, Carlin, and other equivalent models.
✅ Key Features
✔️ Single-stage J-type oil pump for No. 4 and lighter fuels
✔️ Right-hand rotation with left-hand nozzle outlet
✔️ Adjustable pressure range: 100–200 PSI
✔️ Flow rate: 22 GPH @ 1725 RPM / 54 GPH @ 3450 RPM
✔️ 7/16" shaft and conical thread connections for secure fit
✔️ Built-in regulating valve for precise pressure control
✔️ Bypass plug pre-installed for 2-pipe systems (removable for 1-pipe)
✔️ Biofuel-ready (B6–B20) – U.S. only
✔️ Heavy-duty construction for long service life
✔️ Same as Carlin 2350S – direct interchangeability
⚙️ Technical Specifications
| Specification | Details |
|---|
| Model |
J4PBB1000G |
| Pump Type |
Single Stage (J Pump Series) |
| Rotation |
Right Hand |
| Nozzle Location |
Left Hand |
| Fuel Compatibility |
No. 4 & Lighter Fuels |
| Biofuel Rating |
B6–B20 (U.S. Only) |
| Flow Rate @ 1725 RPM |
22 GPH @ 100 PSI |
| Flow Rate @ 3450 RPM |
54 GPH @ 100 PSI |
| Pressure Range |
100–200 PSI |
| Max Pressure |
200 PSI |
| Inlet & Return Port |
1/4" NPTF |
| Nozzle Outlet |
1/8" NPTF |
| Pressure Gauge Port |
1/8" NPSF |
| Vacuum Gauge Port |
1/4" NPTF |
| Shaft Size |
7/16" |
| Connection Threads |
Conical |
| Bypass Plug |
Inserted (2-pipe) / Removable for 1-pipe |
| Suggested Application Range |
400–3000 kW Burners |
🔄 Cross Reference Table
| Manufacturer / Brand | Equivalent / Replacement Models |
|---|
| SUNTEC (J-Series) |
J3BB-200, J4PB-100, J4CBB-1000, J4CBB-1000U, J4PBB1000G |
| SUNTEC (H-Series) |
H3BB-200, H3PB-B100, H5PB-100, H3CB-200, H2PB100, H2PB-100, H2BB100, H2BB-100, H2BB-100-4, H2CB100, H2CB-100 |
| SUNTEC (J2/J3 Series) |
J2CB100, J2CB-100, J2CB300, J2CB-300, J2PB-100-3, J2PB1003, J3CB-200, J3CB200, J3CB-200-3, J3PB-100, JB2BB100, JB2B-B100 |
| CARLIN |
2350S |
| Other Replacements |
J2CB-300-3, J2CB3003, H2BB1004, H2BB-1004, J4PB-B1000G |
⚠️ Common Symptoms of a Failing Oil Pump
If your burner exhibits any of the following, it may be time to replace your pump:
-
🔸 Burner fails to ignite or locks out after short cycles
-
🔸 Weak, flickering, or unstable flame pattern
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🔸 Unusual grinding or whining noises from pump body
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🔸 Oil leakage around housing or fittings
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🔸 Inconsistent pressure readings
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🔸 Delayed ignition or long start-up time
❓ (FAQ) Frequently Asked Questions
Q: What’s the rotation direction of the J4PBB1000G?
A: It has a Right-Hand (Clockwise) rotation when viewed from the shaft end.
Q: Is it compatible with biofuels?
A: Yes, the J4PBB1000G is rated for B6–B20 blends (U.S. only).
Q: How do I configure it for a 1-pipe system?
A: Remove the bypass plug from the return port using a 3/16" Allen key.
Q: Can it replace the Carlin 2350S pump?
A: Yes — it is directly interchangeable with the Carlin 2350S model.
🛒 Shopping Tips
-
✅ Verify rotation direction (RH) before ordering.
-
✅ Check nozzle outlet location — this model is Left-Hand.
-
✅ Confirm fuel type (No. 4 or lighter) matches your burner.
-
✅ Always replace filter and check vacuum during installation.
-
✅ Installation should be done by a qualified HVAC technician for best results.
