CATEngine Parts

349-1178 Fuel Rail Pressure Sensor — Cat M313D M315D

This fuel rail pressure sensor is an electronic component that monitors and reports the fuel pressure within the common rail system to the engine control module (ECM). Manufactured to precise specifications, it ensures accurate pressure readings for optimal fuel delivery and combustion efficiency, unlike a faulty sensor that provides incorrect data. Operators may experience engine performance issues such as rough idling, stalling, difficulty starting, or illuminated check engine lights when this sensor malfunctions.

Fuel Rail Pressure Sensor – Part No 349-1178 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

const P = { partNo:'349-1178', name:'Fuel Rail Pressure Sensor', brand:'CAT', brandSlug:'cat', category:'Engine Parts', catSlug:'engine-parts', condition:'OEM Aftermarket', description:'This fuel rail pressure sensor is an electronic component that monitors and reports the fuel pressure within the common rail system to the engine control module (ECM). Manufactured to precise specifications, it ensures accurate pressure readings for optimal fuel delivery and combustion efficiency, unlike a faulty sensor that provides incorrect data. Operators may experience engine performance issues such as rough idling, stalling, difficulty starting, or illuminated check engine lights when this sensor malfunctions.', xref:['349-1178'], models:["CAT", "Excavator", "M313D", "M315D", "M316D", "M317D", "Engine"], specs:[{key:'Part No',val:'349-1178'},{key:'Brand',val:'CAT'},{key:'Category',val:'Engine Parts'},{key:'Condition',val:'Aftermarket — OEM Specification'},{key:'Dispatch',val:'Same-day from Mumbai (before 3 PM IST)'},{key:'GST Invoice',val:'Available — all orders'},{key:'Export Docs',val:'Commercial invoice, packing list, COO'}], relatedParts:[{"partNo": "263-8218", "name": "Fuel Injector", "slug": "263-8218"}, {"partNo": "7w-2329", "name": "Gasket", "slug": "7w-2329"}, {"partNo": "2344814PK", "name": "Piston-Std", "slug": "2344814PK"}, {"partNo": "7c-3821-7e-3568", "name": "Core Assembly", "slug": "7c-3821-7e-3568"}, {"partNo": "377-0607-tm88302", "name": "Solenoid Valve", "slug": "377-0607-tm88302"}, {"partNo": "515-8572", "name": "Quick Coupler Link", "slug": "515-8572"}], reviews:[{name:'Vikram Singh',loc:'Delhi, India',rating:5,text:'CAT part arrived fast. OEM specification, fits perfectly in my 320D. Highly recommend PTC.'},{name:'Ibrahim Al Rashid',loc:'Dubai, UAE',rating:5,text:'Great service and fast shipping to UAE. The CAT part was exactly as described. Very reliable supplier.'},{name:'Pradeep Sharma',loc:'Nagpur, Maharashtra, India',rating:4,text:'Quick response, good quality. Team confirmed compatibility before dispatch which I appreciated.'}], faq:[{q:'What does the fuel rail pressure sensor do for the engine?',a:'It measures the fuel pressure in the common rail and sends this data to the ECM, allowing for precise control of fuel injection timing and quantity.'},{q:'How can I confirm if 349-1178 is the correct sensor for my CAT machine?',a:'Check your machine\'s model and serial number against the compatibility list or consult your equipment\'s service manual for the correct part number.'},{q:'Is this sensor a direct replacement for the original CAT part?',a:'Yes, this fuel rail pressure sensor is manufactured to OEM specifications, ensuring it functions identically to the original component.'},{q:'What are the common failure modes for a fuel rail pressure sensor?',a:'Failure modes include providing erratic readings, reading too high or too low, or failing completely, often triggering diagnostic trouble codes (DTCs).'}], categoryDesc:'CAT Engine Parts from Parts Trading Company cover the full range of CAT equipment. We supply OEM-specification aftermarket engine parts sourced from certified manufacturers. PTC has supplied CAT engine parts to customers across India, UAE, Russia, Indonesia, and Africa since 1956. Our Mumbai warehouse stocks high-turnover CAT engine parts for same-day dispatch before 3 PM IST.', aiSpecs:[{"key": "Part Type", "val": "Fuel Rail Pressure Sensor"}, {"key": "Material", "val": "Metal and Plastic"}, {"key": "Application", "val": "Common Rail Fuel System"}, {"key": "Service Life", "val": "Replace when diagnostic codes indicate failure"}, {"key": "Compatibility", "val": "OEM specification"}, {"key": "Condition", "val": "New \u2014 OEM specification aftermarket"}],};script src="/assets/js/product-page.js">

Related CAT Parts

From the same category — may also be needed

263-8218
Fuel Injector
7w-2329
Gasket
2344814PK
Piston-Std
7c-3821-7e-3568
Core Assembly
377-0607-tm88302
Solenoid Valve
515-8572
Quick Coupler Link

Browse all CAT Engine Parts →

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeFuel Rail Pressure Sensor
MaterialMetal and Plastic
ApplicationCommon Rail Fuel System
Service LifeReplace when diagnostic codes indicate failure
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing fuel rail pressure sensor may initially cause intermittent engine performance issues, such as slight hesitations or a dimly lit check engine light. If ignored, these symptoms can worsen, leading to rough idling, stalling, difficulty starting, and significantly reduced engine power. Continued operation with a faulty sensor can lead to inefficient fuel combustion and potential damage to the fuel system components.

Installation Tip

Ensure the electrical connector is clean and securely seated after installation; corrosion or a loose connection can cause intermittent faults. Do not overtighten the sensor into the fuel rail, as this can damage the threads or the sensor body.

Service Note

When replacing the fuel rail pressure sensor, it is recommended to check the fuel filter for clogging and inspect the fuel lines for any leaks.