Generac 0H1345 Fuel Gauge – Genuine OEM Replacement 153mm Long Arm Fuel Tank Gauge
Part Number: 0H1345
Category: Generator Parts & Accessories → Fuel System Components → Fuel Gauges
Type: Generac 0H1345 Fuel Gauge – Genuine OEM Replacement 153mm Long-Arm Fuel Tank Gauge
The Generac 0H1345 Fuel Gauge is a genuine OEM replacement fuel-level indicator designed for compatible Generac generators and engine-powered equipment. Featuring a 153mm long arm, this gauge monitors the fuel level inside the tank and provides the operator with a visible indication of the remaining fuel supply. Manufactured to original equipment specifications, it replaces a damaged, inaccurate, leaking, seized, or unreadable gauge while helping restore proper fuel monitoring.
Key Features & Benefits
- Part Number: 0H1345
- Genuine OEM Generac replacement part
- Mechanical fuel-tank level gauge
- 153mm long-arm configuration
- Provides a visible indication of remaining fuel
- Helps operators monitor fuel usage
- Supports timely refueling
- Designed for compatible Generac fuel tanks
- Replaces an inaccurate, damaged, or unreadable gauge
- Helps restore the original fuel-monitoring system
- Direct-fit design for designated applications
- Manufactured to Generac specifications
Technical Specifications
- Part Number: 0H1345
- Manufacturer: Generac
- Product Type: Fuel Gauge
- Component Type: Fuel-Tank Level Indicator
- Arm Length: 153mm
- Arm Style: Long Arm
- Application: Generator fuel system
- Installation Location: Fuel tank
- Function: Mechanical fuel-level monitoring
- OEM Part: Yes
- Quantity: Sold Individually
Compatible Applications
The Generac 0H1345 Fuel Gauge is designed for select:
- Generac portable generators
- Compatible generator fuel tanks
- Engine-driven equipment using the designated gauge opening
- Fuel systems requiring a 153mm gauge arm
- Equipment requiring OEM fuel gauge 0H1345
Always verify the generator model, type or serial number, fuel-tank depth, gauge-opening dimensions, mounting style, arm length, seal configuration, parts diagram, and original part number before ordering.
Function of the Fuel Gauge
The 0H1345 Fuel Gauge is designed to:
- Monitor the fuel level inside the tank
- Provide an operator-visible fuel indication
- Help prevent unexpected shutdown caused by low fuel
- Support accurate refueling decisions
- Restore proper fuel-level monitoring
- Replace a seized, damaged, leaking, or unreadable gauge
- Help maintain the generator’s original fuel-system configuration
- Reduce the need to open the tank for routine fuel-level checks
The indicated level may vary slightly with generator position, fuel movement, tank shape, and gauge calibration.
Common Signs Replacement Is Needed
Replace or inspect the fuel gauge if you notice:
- Gauge reading remains fixed as the fuel level changes
- Indicator displays an obviously incorrect level
- Gauge face is cracked, cloudy, faded, or unreadable
- Float arm is bent, broken, or seized
- Fuel leaks around the gauge mounting area
- Gasket or seal is damaged
- Gauge assembly is loose in the tank
- Internal components show corrosion
- Indicator moves erratically
- Gauge was damaged during fuel-tank service
Incorrect readings may also result from a bent float arm, incorrect installation orientation, tank deformation, internal interference, or use of a gauge with the wrong arm length.
Installation & Service Notes
- Shut down the generator and allow the engine to cool completely.
- Disconnect the spark-plug wire and starting battery where applicable.
- Work outdoors or in a well-ventilated service area.
- Keep flames, sparks, cigarettes, and ignition sources away.
- Drain or lower the fuel level below the gauge opening.
- Clean dirt and debris from around the existing gauge.
- Remove the old gauge without allowing contaminants into the tank.
- Inspect the tank opening and mounting surface for damage.
- Compare the replacement gauge, arm length, and seal with the original.
- Install the Generac 0H1345 gauge in the specified orientation.
- Confirm that the float arm moves freely inside the tank.
- Install the correct gasket or seal.
- Secure the gauge according to the manufacturer’s procedure.
- Add a small quantity of fuel and inspect carefully for leakage.
- Confirm reasonable gauge operation before returning the generator to service.
Important: Gasoline and fuel vapors are extremely flammable. Never service the fuel tank near an open flame, spark, hot surface, or other ignition source. Do not operate the generator if fuel leakage is present.
Important Ordering Notes
- Confirm that the required arm length is 153mm.
- Verify the gauge’s mounting and retention style.
- Check the fuel-tank depth and internal clearance.
- A replacement gasket, seal, or mounting hardware may not be included unless specifically stated.
- Do not select a fuel gauge by appearance alone.
- Always match the original part number and equipment parts diagram.
Maintenance Recommendations
- Inspect the gauge during routine generator maintenance.
- Check the mounting area regularly for fuel seepage.
- Keep the gauge face clean and readable.
- Do not use harsh solvents that may damage plastic components.
- Avoid striking or placing weight on the gauge.
- Keep dirt and water out of the fuel tank during service.
- Replace damaged seals with approved components.
- Do not bend or shorten the float arm to force compatibility.
- Store the generator with the fuel system maintained according to Generac instructions.
- Replace a leaking or unreliable gauge promptly.
- Use genuine OEM fuel-system parts to maintain proper fit, sealing, and dependable operation.
