{"product_id":"0445120177-bosch-crin-injector-set-of-6-cummins-qsb-isb-6-7l","title":"0445120177 Bosch CRIN Fuel Injector Set of 6 for Cummins QSB \u0026 ISB 6.7L Diesel Engines","description":"\u003cp\u003eComplete set of six genuine new \u003cstrong\u003eBosch 0445120177\u003c\/strong\u003e CRIN electromagnetic common rail fuel injectors for \u003cstrong\u003eCummins QSB 4.5L, 5.9L and 6.7L and ISB 6.7L diesel engines\u003c\/strong\u003e. Also referenced as \u003cstrong\u003e5254261\u003c\/strong\u003e, this full set is intended for a complete 6-cylinder injector replacement, restoring precise fuel metering, stable rail-pressure response, reliable cold starting and balanced cylinder performance across the whole engine.\u003c\/p\u003e\n\n\u003cp\u003eReplacing all six injectors at once is recommended on high-mileage engines, after a high-pressure pump failure, or whenever fuel contamination is suspected, so every cylinder runs on injectors of the same age and tolerance. Always confirm compatibility by Bosch number, OE number, VIN, engine serial number, or the identification number marked on the original injector before ordering.\u003c\/p\u003e\n\n\u003cp\u003eThis is a set of brand-new genuine Bosch components supplied in original Bosch packaging. They are \u003cstrong\u003enot IMA coded\u003c\/strong\u003e, so no injector coding or programming is required after installation.\u003c\/p\u003e\n\n\u003cp\u003eAlso known internationally as: Einspritzdüse \/ Injektor (DE), injecteur (FR), iniettore (IT), inyector (ES), injector (RO) — Bosch 0445120177 common rail injector for Cummins 6.7L.\u003c\/p\u003e\n\n\u003cp\u003eNeed a single injector instead? See the \u003ca href=\"https:\/\/expressdiesel.eu\/products\/0445120177-bosch-crin-injector-cummins-qsb-isb-6-7l\" target=\"_blank\"\u003esingle Bosch 0445120177 injector for Cummins QSB \/ ISB 6.7L\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eSet of 6 Bosch CRIN common rail electromagnetic fuel injectors\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGenuine Bosch\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSet quantity\u003c\/td\u003e\n\u003ctd\u003e6 injectors (full engine set)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFuel system\u003c\/td\u003e\n\u003ctd\u003eBosch common rail diesel injection system\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePickup trucks, medium-duty trucks, buses, agricultural, construction, marine, industrial and power-generation diesel engines\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eEngine compatibility\u003c\/td\u003e\n\u003ctd\u003eCummins QSB4.5, QSB5.9, QSB6.7 \/ ISB6.7 diesel engines\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eActuator type\u003c\/td\u003e\n\u003ctd\u003eElectromagnetic solenoid\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFuel type\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCoding\u003c\/td\u003e\n\u003ctd\u003eNot IMA coded — no programming required\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFitment type\u003c\/td\u003e\n\u003ctd\u003eDirect OEM replacement when part numbers match\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eQuality standard\u003c\/td\u003e\n\u003ctd\u003eBosch OEM manufacturer quality\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eProfessional installation recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eProduct detail\u003c\/th\u003e\n\u003cth\u003eInformation\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMain Bosch part number\u003c\/td\u003e\n\u003ctd\u003e0445120177\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBosch exchange (reman) equivalents\u003c\/td\u003e\n\u003ctd\u003e0986435697, 0986435705\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBosch injector family\u003c\/td\u003e\n\u003ctd\u003eCRIN3-18\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProduct category\u003c\/td\u003e\n\u003ctd\u003eCommon rail diesel fuel injector set\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eBosch\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eBrand-new genuine Bosch OEM components supplied in original manufacturer packaging\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCoding\u003c\/td\u003e\n\u003ctd\u003eNot IMA coded\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMade in\u003c\/td\u003e\n\u003ctd\u003eBrazil\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eEAN \/ GTIN (per injector)\u003c\/td\u003e\n\u003ctd\u003e4047024785007\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eIncluded in package\u003c\/td\u003e\n\u003ctd\u003e6 fuel injectors\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.20 kg (6 x 0.70 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003e6 original Bosch boxes (each 30 x 10 x 10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInstallation area\u003c\/td\u003e\n\u003ctd\u003eEngine cylinder head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCross-Reference Numbers\u003c\/h2\u003e\n\u003cp\u003eCompare your original part number before ordering. Vehicle model alone is not enough for compatibility confirmation.\u003c\/p\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eBrand \/ manufacturer\u003c\/th\u003e\n\u003cth\u003eCross-reference numbers\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBosch (new)\u003c\/td\u003e\n\u003ctd\u003e0445120177, 0 445 120 177, CRIN3-18\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBosch exchange \/ reman\u003c\/td\u003e\n\u003ctd\u003e0986435697, 0 986 435 697, 0986435705, 0 986 435 705\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003e5254261, 5 254 261, 52542610, 5254261006R, 525426100QX, 5254261NX, 5254261PX, 5254261QX, 5254261RX, 5579332, 5579332NX, 5579332RX, 3060303, 3060479, 3060481\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eKomatsu\u003c\/td\u003e\n\u003ctd\u003e2411300035, 241-130-0035, 2411301035, 241-130-1035, 2411306035, 241-130-6035, 6755113100, R6755113100, R6755-11-3100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n\u003cp\u003eCompatibility must always be verified by original Bosch part number, OEM reference number, VIN number, engine serial number, or injector identification number.\u003c\/p\u003e\n\n\u003ch3\u003eCummins Engine Applications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003cth\u003ePower (kW)\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eEngine code\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eQSB4.5\u003c\/td\u003e\n\u003ctd\u003e4.5 L\u003c\/td\u003e\n\u003ctd\u003e60.0 – 125.0\u003c\/td\u003e\n\u003ctd\u003e09\/2002 →\u003c\/td\u003e\n\u003ctd\u003eQSB4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eQSB4.5\u003c\/td\u003e\n\u003ctd\u003e4.5 L\u003c\/td\u003e\n\u003ctd\u003e89.0 – 127.0\u003c\/td\u003e\n\u003ctd\u003e09\/2013 →\u003c\/td\u003e\n\u003ctd\u003eQSB4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eQSB5.9\u003c\/td\u003e\n\u003ctd\u003e5.9 L\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e09\/2001 →\u003c\/td\u003e\n\u003ctd\u003eQSB5.9\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eQSB6.7\u003c\/td\u003e\n\u003ctd\u003e6.7 L\u003c\/td\u003e\n\u003ctd\u003e98.0 – 202.0\u003c\/td\u003e\n\u003ctd\u003e09\/2006 →\u003c\/td\u003e\n\u003ctd\u003eQSB6.7\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eQSB6.7\u003c\/td\u003e\n\u003ctd\u003e6.7 L\u003c\/td\u003e\n\u003ctd\u003e103.0 – 221.0\u003c\/td\u003e\n\u003ctd\u003e09\/2013 →\u003c\/td\u003e\n\u003ctd\u003eQSB6.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTruck Applications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003cth\u003ePower (kW)\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eEngine code\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInternational (Navistar)\u003c\/td\u003e\n\u003ctd\u003eDuraStar 4300LP 6.7\u003c\/td\u003e\n\u003ctd\u003e6.7 L\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e09\/2014 – 08\/2019\u003c\/td\u003e\n\u003ctd\u003eISB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePeterbilt\u003c\/td\u003e\n\u003ctd\u003e337\u003c\/td\u003e\n\u003ctd\u003e6.7 L\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e09\/2013 – 08\/2023\u003c\/td\u003e\n\u003ctd\u003ePX-7 (PX-7.164)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional applications:\u003c\/strong\u003e the same Bosch 0445120177 \/ 5254261 injector is also fitted to other machines running the Cummins QSB 4.5L \/ 6.7L and ISB 6.7L engine, including Dodge Ram 2500 and 3500 pickups with the 6.7L Cummins engine, Freightliner M2 medium-duty trucks, Thomas school buses, Cummins generator sets, and industrial and construction equipment such as Hyundai and Komatsu wheel loaders and excavators. Exact model years vary.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAlways confirm fitment using your original part number before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Information\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eTechnical specification\u003c\/th\u003e\n\u003cth\u003eInformation\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInjector type\u003c\/td\u003e\n\u003ctd\u003eCRIN3-18 electromagnetic common rail fuel injector\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eActuator technology\u003c\/td\u003e\n\u003ctd\u003eElectromagnetic solenoid\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFuel system type\u003c\/td\u003e\n\u003ctd\u003eBosch common rail diesel injection system\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCoding\u003c\/td\u003e\n\u003ctd\u003eNot IMA coded — no injector coding needed\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eApplication type\u003c\/td\u003e\n\u003ctd\u003ePickup trucks, medium-duty trucks, buses, agricultural, construction, marine, industrial and power-generation diesel engines\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInstallation type\u003c\/td\u003e\n\u003ctd\u003eDirect OEM replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCompatibility verification\u003c\/td\u003e\n\u003ctd\u003eBosch number, OE number, VIN, or engine code required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eRelated Diesel Fuel System Parts\u003c\/h2\u003e\n\u003cp\u003eThe following related diesel fuel system components may be used together with this application depending on engine configuration. \u003cstrong\u003eThis list is not exhaustive\u003c\/strong\u003e — other part numbers that are not shown here may also be compatible. Always confirm the correct part by the code marked on the component actually fitted to your engine.\u003c\/p\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003cth\u003eProduct codes\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInlet connector (injector)\u003c\/td\u003e\n\u003ctd\u003eF00RC00647, F00RJ01831; CASE: 84403334; Cummins: 4929864, 5346206; Komatsu: 4929864; Mopar: 68441874AA\u003c\/td\u003e\n\u003ctd\u003eQSB4.5 · QSB5.9 · QSB6.7\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHigh-pressure pump, CR system\u003c\/td\u003e\n\u003ctd\u003e0445020109, 0986437375, CR\/CP3HS3\/L110\/30-789S; Cummins: 4989266; Komatsu: 4989266, 6754721012\u003c\/td\u003e\n\u003ctd\u003eQSB4.5 · QSB5.9 · QSB6.7\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHigh-pressure pump, CR system\u003c\/td\u003e\n\u003ctd\u003e0445020176, CR\/CP3HS3\/L110\/30-789S; Cummins: 5252703, 5262703; Komatsu: 5262703\u003c\/td\u003e\n\u003ctd\u003eQSB4.5 · QSB6.7\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHigh-pressure pump, CR system\u003c\/td\u003e\n\u003ctd\u003e0445020609, CR\/CP4N2\/L93\/40-S; Cummins: 5302736, 5529762\u003c\/td\u003e\n\u003ctd\u003eQSB4.5 (89–127 kW \/ 09\/2013→) · QSB6.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatibility Note\u003c\/h2\u003e\n\u003cp\u003ePlease verify your original Bosch number, OEM reference number, VIN number, engine serial number, or injector identification number before purchase. Do not install the parts before checking compatibility. Installed or used fuel system parts may not be eligible for return.\u003c\/p\u003e\n\n\u003ch2\u003eShipping and Warranty\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eShipping \/ warranty detail\u003c\/th\u003e\n\u003cth\u003eInformation\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003eSame-day handling for stock items\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePre-order availability\u003c\/td\u003e\n\u003ctd\u003ePre-order items may require 2-4 weeks handling time\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1-year manufacturer global warranty covering manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eReturns\u003c\/td\u003e\n\u003ctd\u003eReturns accepted only for unused and uninstalled parts in original condition\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFitment responsibility\u003c\/td\u003e\n\u003ctd\u003eBuyer must verify compatibility before installation\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInstallation damage\u003c\/td\u003e\n\u003ctd\u003eDamage caused by incorrect installation, contaminated fuel, or incorrect application is not covered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eQuestion\u003c\/th\u003e\n\u003cth\u003eAnswer\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHow many injectors are included in this set?\u003c\/td\u003e\n\u003ctd\u003eThis listing includes six (6) genuine new Bosch 0445120177 injectors — a complete set for one 6-cylinder Cummins 6.7L engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eIs this a genuine Bosch injector set?\u003c\/td\u003e\n\u003ctd\u003eYes. These are genuine new Bosch OEM common rail diesel fuel injectors, supplied in original Bosch packaging and made in Brazil.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWhat is the main Bosch part number?\u003c\/td\u003e\n\u003ctd\u003eThe main Bosch reference for these new injectors is 0445120177; the common Cummins reference is 5254261. 0986435697 and 0986435705 are the Bosch exchange (reman) equivalents for the same application.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWhich engines use Bosch 0445120177?\u003c\/td\u003e\n\u003ctd\u003eIt is used in Cummins QSB4.5, QSB5.9, QSB6.7 and ISB6.7 diesel engines fitted to trucks, buses, tractors and industrial machinery.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eIs this injector IMA coded?\u003c\/td\u003e\n\u003ctd\u003eNo. These injectors are not IMA coded, so no injector coding or programming is required after fitting.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAre these new or remanufactured?\u003c\/td\u003e\n\u003ctd\u003eThese are brand-new genuine Bosch injectors.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eShould I replace all six injectors at the same time?\u003c\/td\u003e\n\u003ctd\u003eOn high-mileage engines, or after a high-pressure pump failure or fuel contamination, replacing the full set keeps all cylinders on injectors of the same age and tolerance, which improves balance and reliability.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eIs professional installation recommended?\u003c\/td\u003e\n\u003ctd\u003eYes. Professional installation is recommended to ensure correct fitment, proper torque settings, and system integrity checks before and after replacement.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWhat causes common rail injector failure?\u003c\/td\u003e\n\u003ctd\u003eCommon causes include fuel contamination, water in fuel, metal particle contamination from a failed high-pressure pump, insufficient fuel filtration, and wear from extended service.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eDiagnostic Information\u003c\/h2\u003e\n\u003ch3\u003eCommon Symptoms of Fuel Injector Failure\u003c\/h3\u003e\n\u003cp\u003eHard starting, long cranking, engine no-start condition, unstable idle, engine misfiring, loss of power, rough running, excessive smoke, abnormal fuel consumption, check engine warning light, or visible fuel system contamination may indicate problems within the diesel fuel system or common rail injection system.\u003c\/p\u003e\n\u003cp\u003eThese symptoms may also be caused by the high-pressure fuel pump, rail pressure sensor, fuel metering valve, ECU faults, fuel contamination, or other diesel engine management issues.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation and System Check\u003c\/h3\u003e\n\u003cp\u003eBefore replacing common rail fuel injectors, a professional diagnostic inspection should be performed, including rail pressure testing, injector leak-off testing, fuel contamination inspection, ECU fault-code analysis, fuel filter inspection, and diesel fuel quality inspection.\u003c\/p\u003e\n\u003cp\u003eIf the previous injectors failed internally, or if the high-pressure pump failed and released metal particles into the fuel system, the common rail, fuel lines, fuel filter housing, injector connector tubes and remaining injectors should also be inspected and cleaned or replaced if necessary. Installing new Bosch injectors into a contaminated fuel system may result in immediate repeat failure.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":54187948310861,"sku":"0445120177-SET6","price":2958.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/3896\/3277\/files\/0445120177-bosch-crin-injector-set-of-6-cummins-qsb-isb-6-7l-with-bosch-boxes.jpg?v=1782822374","url":"https:\/\/expressdiesel.eu\/products\/0445120177-bosch-crin-injector-set-of-6-cummins-qsb-isb-6-7l","provider":"Express Diesel","version":"1.0","type":"link"}