Related by context. Frequent words. (Click for all words.) 60 Cummins Westport 59 Selective Catalytic Reduction SCR 59 Cummins Westport Inc. 59 PACCAR MX engine 57 Dual Fuel 57 reciprocating engines 56 exhaust aftertreatment 56 hydrogen internal combustion 56 #.# liter TDI 56 #.#L diesel 56 #hp #kW [002] 56 #.# liter Duratorq 56 #kVA [002] 56 Mercedes Benz Actros 56 AuraGen 55 Direct Injection 55 diesel particulate filter DPF 55 Stralis 55 aftertreatment 55 Capstone MicroTurbine 54 SULEV 54 CFM# engines 54 Orion VII 54 F# PW 54 Dodge Ram Heavy Duty 54 variable geometry turbocharger 54 mpg city/# highway 54 Kenworth trucks 54 PW#G engine 54 #.# liter #PS 54 Silverado Hybrid 54 GEnx engines 54 #kW [002] 54 ULEV 54 liter turbodiesel engine 54 liter TFSI 54 CRJ Series 54 PurePower 54 #.# liter TDCi 54 Ford EcoBoost 53 8 CYL 53 TDI Clean Diesel 53 particulate filter 53 V6 diesel 53 CF6 53 ACERT 53 #NG 53 Pentastar V 6 53 kW/# hp [002] 53 & Whitney PurePower 53 #-# Freighter [001] 52 Genset 52 chassis cabs 52 cleanest diesel 52 Theta II 52 Nalco Mobotec 52 JT8D 52 MultiJet 52 diesel particulate filter 52 diesel engine 52 Optima Hybrid 52 Trent XWB 51 centrifugal compressors 51 diaphragm pumps 51 #.# liter Duratec 51 #.# liter VVT 51 Variable Cylinder Management 51 Ti VCT 51 Puradyn 51 #.# liter HDi 51 repowered 51 MaxxForce 51 #PS [001] 51 turbocharged diesel 51 urea injection 51 produces #kW 51 cylinder turbocharged 51 Duramax 51 BlueTec 51 reduce NOx emissions 51 SLK Class 51 Multijet 51 Chassis Cab 51 variable valve 51 gas recirculation EGR 51 PT6 50 H2GO TM 50 BMW ActiveHybrid 7 50 E# CDI 50 6 CYL 50 Kenworth T# [001] 50 Duratec 50 Vapor Flo ® 50 A6 sedan 50 CFMI 50 Geared Turbofan engine 50 eStar 50 FUEL CHEM 50 NOx reduction 50 Telguard 50 BLUETEC