Engine Part OE 1G939-60010 Fuel Shut Off Solenoid – OEM-Grade Kubota Engine Accessory (1G528-60010 Compatible)
Product Overview
The Engine Part OE 1G939-60010 is a precision-engineered Fuel Shut Off Solenoid exclusively designed for Kubota diesel engines – the core power units in agricultural, construction, and forestry machinery worldwide. As a critical fuel control component, this solenoid ensures rapid, reliable fuel supply cutoff to enhance engine safety, efficiency, and operational control, while the 1G528-60010 compatible variant expands fitment for legacy Kubota engine models.
Manufactured to match Kubota’s OEM specifications, the Engine Part OE 1G939-60010 addresses the key flaws of generic aftermarket solenoids (corrosion failure, slow response, fitment issues) with corrosion-resistant materials and precision machining. Whether for routine maintenance or emergency replacement, this Fuel Shut Off Solenoid delivers seamless integration, long-term durability, and consistent performance in extreme temperatures and harsh outdoor environments – making it the top choice for global agricultural/industrial equipment procurement teams and maintenance specialists.
Technical Specifications
- Core Part Numbers: 1G939-60010 (primary), 1G528-60010 (interchangeable for legacy Kubota models)
- Operating Voltage: 12V DC (±5% tolerance, standard for Kubota engine systems)
- Material Composition: Zinc-plated steel housing, copper alloy electrical contacts, Viton rubber seals, stainless steel actuator rod
- Response Time: ≤0.3 seconds (rapid fuel cutoff for emergency engine shutdown)
- Operating Temperature Range: -35°C to +110°C (resists extreme engine bay heat/cold)
- Protection Rating: IP64 (dust-tight, splash-proof for outdoor agricultural use)
- Dimensions (L×W×H): 75mm × 55mm × 100mm; Net Weight: 0.65kg
- Actuator Force: 65N (ensures secure fuel valve closure under engine pressure)
- Electrical Resistance: 16-18Ω (at 25°C, consistent power draw)
- Compatible Kubota Engines: V1505, V1903, V2203, V2403, D1105, D1305 series
- Service Life: 80,000+ activation cycles (tested under industrial operating conditions)
Product Features & Advantages
Core Design Features
- Precision Engineered Fit: Exact OEM dimension match to Kubota engines – no modifications needed for installation (compatible with 1G528-60010 legacy models).
- Corrosion Resistance: Zinc-plated housing + Viton seals resist moisture, dirt, and agricultural chemicals (e.g., fertilizer spray) – critical for farm machinery.
- Rapid Response: ≤0.3-second actuation meets Kubota safety standards – prevents fuel waste and engine damage during emergency shutdowns.
- Low Power Consumption: 16-18Ω resistance minimizes battery drain – ideal for idle-heavy agricultural equipment (e.g., tractors, harvesters).
- Robust Mechanical Structure: Stainless steel actuator rod resists bending/wear; sealed electrical contacts prevent short circuits in dusty environments.
Competitive Advantages (vs. Aftermarket Alternatives)
- 2.5x longer service life (80,000+ cycles) vs. generic solenoids (30,000 cycles max) – reduces replacement frequency for fleet owners.
- Direct OEM compatibility eliminates “fitment gaps” – avoids costly rework or fuel system damage from ill-fitting parts.
- IP64 protection ensures performance in muddy/wet farm conditions – no failure from water/slurry exposure.
- Drop-in replacement design cuts installation time by 70% – critical for minimizing equipment downtime during harvest/construction seasons.
Working Principle
The Engine Part OE 1G939-60010 Fuel Shut Off Solenoid operates via electromagnetic activation: when 12V power is supplied (engine running), the coil creates a magnetic field that retracts the actuator rod, opening the fuel valve to allow fuel flow to the engine. When power is cut (shutdown command), a return spring extends the rod to close the fuel valve – stopping fuel flow and shutting down the engine within 1 second. The 1G528-60010 variant uses the same core mechanism, optimized for older Kubota engine valve configurations.
Installation & Usage Steps
Step-by-Step Installation Process
- Prepare the Engine: Shut down the Kubota engine, disconnect the 12V battery, and relieve fuel system pressure (follow Kubota service manual).
- Remove the Old Solenoid: Disconnect the electrical connector from the old Fuel Shut Off Solenoid; use a 12mm wrench to remove mounting nuts/bolts and extract the unit (note actuator rod alignment).
- Clean Mounting Surface: Use a degreaser to remove oil/dirt from the fuel injection pump flange – ensure a flat, seal-friendly surface to prevent leaks.
- Install the New Solenoid: Align the Engine Part OE 1G939-60010 (or 1G528-60010 for legacy models) with the fuel pump port, insert the actuator rod, and hand-tighten mounting nuts (torque to 18-20 N·m).
- Reconnect Wiring: Attach the electrical connector (polarity-specific – match “+”/”-“ marks to avoid reverse voltage damage).
- Test Operation: Reconnect the battery, start the engine, and activate the shutdown switch – verify solenoid actuation (audible “click”) and smooth engine stop/start.
Usage & Maintenance Best Practices
- Test solenoid operation biweekly (activate shutdown switch) – ensure rapid response (≤0.3s) to avoid emergency failure.
- Inspect electrical connectors every 300 operating hours – clean corrosion and apply dielectric grease to prevent voltage drop.
- Replace the solenoid immediately if actuator rod is stuck or response time exceeds 0.5 seconds (prevents engine shutdown failure).
- Avoid exposing the solenoid to excessive heat (＞110°C) – use heat shields if mounted near exhaust components (consult staff for options).
- Store spare 1G939-60010/1G528-60010 solenoids in a dry, clean environment – avoid moisture/corrosion when not in use.
Application Scenarios
The Engine Part OE 1G939-60010 and 1G528-60010 Fuel Shut Off Solenoid are engineered for reliable performance in Kubota-powered equipment across key industries:
- Agricultural Machinery: Tractors, harvesters, irrigation pumps, and hay balers – withstands dust/moisture in farm environments.
- Construction Equipment: Mini excavators, skid steers, and compact loaders – resists vibration/shock in job site conditions.
- Forestry Equipment: Chippers, log splitters, and small forestry tractors – durable in outdoor/remote settings.
- Utility Vehicles: Kubota RTV series, generators, and water pumps – consistent performance for 24/7 utility use.
- Industrial Equipment: Small factory power units, compressors, and material handling machinery – low-maintenance operation.
Benefits for Customers
- Reduced Downtime: 80,000+ cycle service life and 70% faster installation cut maintenance downtime – critical for harvest/construction deadlines.
- Lower Operational Costs: Precision fuel control reduces fuel waste by 8% – lowers fuel expenses for agricultural fleets.
- Enhanced Safety: Rapid 0.3s response time prevents uncontrolled engine operation – reduces accident risks in farm/construction settings.
- Minimized Inventory Complexity: 1G939-60010/1G528-60010 compatibility covers most Kubota engine models – lowers inventory holding costs.
- Long-Term Durability: Corrosion-resistant design ensures performance in harsh environments – no unplanned failures in wet/muddy conditions.
Certifications and Compliance
- ISO 9001:2015 (Quality Management System for manufacturing and testing)
- CE Certification (Compliant with EU Low Voltage Directive 2014/35/EU)
- RoHS Compliance (Free of restricted hazardous substances)
- Kubota OEM Compatibility Certification (Third-party tested to match engine specs)
- ASTM B633 Certification (for zinc plating corrosion resistance)
Certification documents (including electrical safety reports and material compliance data) are available upon request – contact our technical team for details.
Customization Options
- 24V DC voltage variant (for modified Kubota engine systems – consult staff).
- Extended actuator rod lengths (custom to non-standard fuel pump configurations).
- IP67 waterproof connectors (for submersion-prone marine/irrigation applications).
- Bulk packaging for agricultural fleet/wholesale orders; OEM-branded packaging for distributors.
For customization details, minimum order quantities, and technical drawings, please consult our staff.
Production Process
The Engine Part OE 1G939-60010 Fuel Shut Off Solenoid is manufactured in an ISO 9001-certified facility with strict quality control at every stage:
- Source certified zinc-plated steel, copper alloy, and Viton rubber from qualified suppliers – test for material strength/composition.
- CNC-machine solenoid housing and actuator rod to Kubota OEM tolerance (±0.03mm) – ensures precise fit.
- Wind electromagnetic coils with high-grade copper wire; test for resistance/insulation integrity (100% electrical testing).
- Assemble components (seals, actuator rod, contacts) – torque fasteners to Kubota specs to avoid leakage/loosening.
- IP64 waterproof testing (splash/pressure spray) and response time validation – reject units with slow actuation (＞0.3s).
- Apply anti-corrosion coating; label with part numbers/serial numbers for traceability.
- Package with installation instructions and electrical polarity guides; seal in anti-static bags for protection.
For production capacity, quality control reports, and lead time details, contact our production team.
Customer Testimonials and Reviews
- AgriFleet EU (France): “We replaced 400+ solenoids in our Kubota tractor fleet with 1G939-60010 – the corrosion resistance holds up perfectly in our wet farmland, and we’ve had zero failures in 18 months vs. 15% failure with generic solenoids.”
- BuildMini USA (Texas): “The 1G528-60010 variant fits our legacy Kubota mini excavators perfectly. Installation takes 15 minutes (vs. 1 hour for generic parts), and the rapid shutdown prevents engine damage during job site emergencies.”
- ForestTech AU (Australia): “Engine Part OE 1G939-60010 solenoids in our log splitters survive dusty/bush conditions – fuel efficiency improved by 7%, and we’ve extended maintenance intervals from 200 to 1,000 hours.”
FAQ (Frequently Asked Questions)
- Q: Are 1G939-60010 and 1G528-60010 fully interchangeable for all Kubota engines?
A: 1G939-60010 fits modern Kubota models (V1505-V2403); 1G528-60010 is for legacy models. Contact our staff to verify compatibility with your engine serial number.
- Q: What warranty coverage is offered for this Fuel Shut Off Solenoid?
A: We provide a warranty for manufacturing defects (e.g., electrical failure, slow response). Consult our staff for full terms and claim processes.
- Q: Can this solenoid be used with 24V Kubota engine systems?
A: The standard model is 12V; we offer custom 24V variants – contact our staff for details.
- Q: How to diagnose a faulty 1G939-60010 solenoid?
A: Check for 12V power at the connector (no power = wiring issue); listen for a “click” (no click = coil failure); inspect actuator rod (stuck = mechanical wear). Our staff can provide a diagnostic guide.
- Q: What causes premature failure of the 1G939-60010 Fuel Shut Off Solenoid?
A: Common causes: reverse polarity wiring, exposure to agricultural chemicals, or dirty electrical connectors. Our staff can provide a maintenance checklist to extend lifespan.
The Engine Part OE 1G939-60010 and 1G528-60010 Fuel Shut Off Solenoid deliver OEM-grade reliability and performance for Kubota engines. Whether you’re managing an agricultural fleet, construction equipment, or forestry machinery, these solenoids ensure safe, efficient fuel control and minimal downtime in harsh operating conditions.
Our team of Kubota component specialists is available to support your procurement process – from technical specification verification to custom solution design. Contact us today for tailored solenoid solutions for your Kubota equipment.
