12V fuel cut-off solenoid for DPA/DPS/CAV/Lucas engines – OEM replacement

Product Specifications

Compatible Models

Tired of Engine Stalls on Critical Jobs? Get the Right 12V Fuel Solenoid for Your DPA/DPS/CAV/Lucas Diesel System

When a vintage diesel engine fails to shut down—or won’t start at all—faulty fuel cut-off solenoids are among the top culprits. Operators in mining, port maintenance, and demolition report average downtime costs exceeding $2,800 per day. OEM replacements take 3–4 weeks and cost up to 45% more. Worse, counterfeit 12V diesel engine fuel shut-off solenoids fail within 200 operating hours, triggering repeat failures and safety risks.

OEM-Equivalent Quality, Ready to Ship

This 12V fuel cut-off solenoid is engineered to match original Lucas, CAV, and DPA pump specifications—built in ISO 9001-certified factories with full incoming material inspection and pre-shipment functional testing. Designed for excavator auxiliary power units, generator sets, and industrial diesel engines, it delivers reliable on/off response under continuous 12V DC supply and meets OEM voltage tolerance (±10%) and duty cycle (100% intermittent). Guangzhou XUNPO stocks over 10,000 engine components—including this replacement fuel cut-off solenoid for vintage diesel engines—to support urgent field repairs.

Where This Part Works

This solenoid operates in high-vibration, temperature-variable environments: construction sites with daily 0–55°C ambient swings, quarry equipment exposed to dust and moisture, marine auxiliary generators, and agricultural tractors running extended shifts. It controls critical fuel flow interruption during emergency shutdowns and cold-start sequences—making precise magnetic actuation force and corrosion-resistant housing essential. A failed unit can cause uncontrolled run-on or inability to start, directly impacting operational safety and uptime. It’s a key component in the 12V fuel solenoid family used across legacy DPA DPS CAV Lucas systems.

Engineering Details That Matter

The solenoid coil uses Class H insulation (180°C thermal rating), ensuring stable operation during prolonged idling or high-load conditions. Core plunger material is hardened stainless steel (HRC 42–46), resisting wear from repeated impact cycling over 500,000 actuations. Sealing gasket is Viton® fluoroelastomer, rated for diesel fuel, biodiesel blends, and temperatures from –20°C to +120°C. Dimensional tolerances are held to ±0.05 mm on mounting flange and solenoid stem—guaranteeing drop-in fit without adapter plates or machining. Surface finish includes zinc-nickel electroplating (15 µm thick, ASTM B633 SC4), offering 720-hour salt-spray resistance—critical for coastal and mining applications.

The Real Cost of Wrong Parts

A $12 counterfeit solenoid may save $8 upfront—but triggers $1,200 in labor to re-diagnose, $3,600 in lost production per day, and potential damage to the injection pump due to uncontrolled fuel pressure spikes. Genuine OEM-equivalent parts like this 12V diesel engine fuel shut-off solenoid meet ISO 4024 and SAE J1171 standards for electromagnetic device reliability. Total cost of ownership drops by 37% over 3 years when factoring in failure rate, warranty coverage, and technician time saved. This replacement fuel cut-off solenoid for vintage diesel engines avoids hidden liabilities while delivering predictable performance.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in anti-static bags with molded EPE foam inside reinforced 5-layer corrugated boxes
• In-stock items ship within 2–5 working days after order confirmation
• Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight based on order size and urgency
• Real-time tracking number provided upon dispatch, updated until door-to-door delivery
• MOQ is 1 piece—designed for emergency repairs and diagnostic validation

Get Your 12V Fuel Solenoid Now

Your excavator or generator isn’t generating revenue while waiting. Send us your machine model, current solenoid part number (e.g., 7167-620B or 9009-049), and required quantity—we’ll reply with a formal quote within 24 hours. First-time buyers can request a sample for functional testing before bulk order. Every shipment includes full documentation and warranty terms.

Frequently Asked Questions