Ford Duratec engine#Duratec 3.7

{{more citations needed|date=December 2010}}

{{Infobox automobile engine

| name = Ford Duratec engine

| image =

| manufacturer = Ford of Germany
Mazda
Volvo Cars

| aka = Mazda L
Volvo Modular
Sigma
Duratec V6

| production = 1993–present

| predecessor = Ford Zetec engine

| successor = Ecoboost

| configuration = I3, I4, I5 and 60° V6

| displacement = {{ubl

|I3 1.0: 998 cc

|I3 1.1: 1084 cc

|I4 1.25: 1242 cc

|I4 1.3: 1297–1299 cc

|I4 1.4: 1388 cc

|I4 1.5: 1499 cc

|I4 1.6: 1596 cc

|I4 1.8: 1798 cc

|I4 2.0: 1999 cc

|I5 2.5: 2521 cc

|V6 2.5: 2544 cc

|V6 3.0: 2967 cc

}}

| bore =

| stroke =

| length =

| width =

| height =

| diameter =

| weight =

| block =

| head = Aluminum

| valvetrain = DOHC with Direct Acting Mechanical Buckets (DAMB)
Variable camshaft timing

| turbocharger =

| fuelsystem =

| management =

| fueltype = Gasoline multi-port or direct injection

| oilsystem =

| coolingsystem =

| power =

| specpower =

| torque =

| compression =

| fuelcon =

| specfuelcon =

}}

Ford Duratec engine is a line of engines used by Ford of Europe and United States for the company's range of gasoline-powered I3, I4, I5 and V6 passenger car engines. The first Duratec engine was co-designed by Ford and Porsche{{cite web|url=https://performanceparts.ford.com/download/pdfs/EngineHistory.pdf | title=Ford Racing Engine History | date=July 2018}} and introduced as the Duratec V6 in the 1993 Ford Mondeo.

Ford would supsequently brand other gasoline engines unrelated to the original V6 with the Duratec name. The Ford Zeta engine, Ford Sigma engine and Ford Cyclone engine all carry the Duratec name, but are otherwise unrelated to each other or the original 1993 Duratec V6. The ambiguous use of the name is similar to Ford's use of the Zetec for the previous generation of gasoline engines, the Duratorq name for diesel engines, and EcoBoost for turbocharged gasoline engines.