diff --git a/modules/@angular/common/src/pipes/date_pipe.ts b/modules/@angular/common/src/pipes/date_pipe.ts
index 156ecc8563..6aa9195842 100644
--- a/modules/@angular/common/src/pipes/date_pipe.ts
+++ b/modules/@angular/common/src/pipes/date_pipe.ts
@@ -6,14 +6,14 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Pipe, PipeTransform} from '@angular/core';
+import {Inject, LOCALE_ID, Pipe, PipeTransform} from '@angular/core';
+
 import {StringMapWrapper} from '../facade/collection';
 import {DateFormatter} from '../facade/intl';
 import {DateWrapper, NumberWrapper, isBlank, isDate, isString} from '../facade/lang';
+
 import {InvalidPipeArgumentException} from './invalid_pipe_argument_exception';
 
-// TODO: move to a global configurable location along with other i18n components.
-var defaultLocale: string = 'en-US';
 
 /**
  * Formats a date value to a string based on the requested format.
@@ -96,6 +96,7 @@ export class DatePipe implements PipeTransform {
     'shortTime': 'jm'
   };
 
+  constructor(@Inject(LOCALE_ID) private _locale: string) {}
 
   transform(value: any, pattern: string = 'mediumDate'): string {
     if (isBlank(value)) return null;
@@ -112,7 +113,7 @@ export class DatePipe implements PipeTransform {
     if (StringMapWrapper.contains(DatePipe._ALIASES, pattern)) {
       pattern = <string>StringMapWrapper.get(DatePipe._ALIASES, pattern);
     }
-    return DateFormatter.format(value, defaultLocale, pattern);
+    return DateFormatter.format(value, this._locale, pattern);
   }
 
   private supports(obj: any): boolean {
diff --git a/modules/@angular/common/src/pipes/number_pipe.ts b/modules/@angular/common/src/pipes/number_pipe.ts
index d7ead4189b..ae6ebca4c2 100644
--- a/modules/@angular/common/src/pipes/number_pipe.ts
+++ b/modules/@angular/common/src/pipes/number_pipe.ts
@@ -6,19 +6,18 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Pipe, PipeTransform, Type} from '@angular/core';
+import {Inject, LOCALE_ID, Pipe, PipeTransform, Type} from '@angular/core';
 
 import {NumberFormatStyle, NumberFormatter} from '../facade/intl';
 import {NumberWrapper, isBlank, isNumber, isPresent, isString} from '../facade/lang';
 
 import {InvalidPipeArgumentException} from './invalid_pipe_argument_exception';
 
-var defaultLocale: string = 'en-US';
 const _NUMBER_FORMAT_REGEXP = /^(\d+)?\.((\d+)(\-(\d+))?)?$/;
 
 function formatNumber(
-    pipe: Type<any>, value: number | string, style: NumberFormatStyle, digits: string,
-    currency: string = null, currencyAsSymbol: boolean = false): string {
+    pipe: Type<any>, locale: string, value: number | string, style: NumberFormatStyle,
+    digits: string, currency: string = null, currencyAsSymbol: boolean = false): string {
   if (isBlank(value)) return null;
   // Convert strings to numbers
   value = isString(value) && NumberWrapper.isNumeric(value) ? +value : value;
@@ -50,7 +49,7 @@ function formatNumber(
       maxFraction = NumberWrapper.parseIntAutoRadix(parts[5]);
     }
   }
-  return NumberFormatter.format(value as number, defaultLocale, style, {
+  return NumberFormatter.format(value as number, locale, style, {
     minimumIntegerDigits: minInt,
     minimumFractionDigits: minFraction,
     maximumFractionDigits: maxFraction,
@@ -90,8 +89,10 @@ function formatNumber(
  */
 @Pipe({name: 'number'})
 export class DecimalPipe implements PipeTransform {
+  constructor(@Inject(LOCALE_ID) private _locale: string) {}
+
   transform(value: any, digits: string = null): string {
-    return formatNumber(DecimalPipe, value, NumberFormatStyle.Decimal, digits);
+    return formatNumber(DecimalPipe, this._locale, value, NumberFormatStyle.Decimal, digits);
   }
 }
 
@@ -116,8 +117,10 @@ export class DecimalPipe implements PipeTransform {
  */
 @Pipe({name: 'percent'})
 export class PercentPipe implements PipeTransform {
+  constructor(@Inject(LOCALE_ID) private _locale: string) {}
+
   transform(value: any, digits: string = null): string {
-    return formatNumber(PercentPipe, value, NumberFormatStyle.Percent, digits);
+    return formatNumber(PercentPipe, this._locale, value, NumberFormatStyle.Percent, digits);
   }
 }
 
@@ -147,10 +150,13 @@ export class PercentPipe implements PipeTransform {
  */
 @Pipe({name: 'currency'})
 export class CurrencyPipe implements PipeTransform {
+  constructor(@Inject(LOCALE_ID) private _locale: string) {}
+
   transform(
       value: any, currencyCode: string = 'USD', symbolDisplay: boolean = false,
       digits: string = null): string {
     return formatNumber(
-        CurrencyPipe, value, NumberFormatStyle.Currency, digits, currencyCode, symbolDisplay);
+        CurrencyPipe, this._locale, value, NumberFormatStyle.Currency, digits, currencyCode,
+        symbolDisplay);
   }
 }
diff --git a/modules/@angular/common/test/pipes/date_pipe_spec.ts b/modules/@angular/common/test/pipes/date_pipe_spec.ts
index 5b10845b4f..09e359641b 100644
--- a/modules/@angular/common/test/pipes/date_pipe_spec.ts
+++ b/modules/@angular/common/test/pipes/date_pipe_spec.ts
@@ -20,7 +20,7 @@ export function main() {
 
     beforeEach(() => {
       date = DateWrapper.create(2015, 6, 15, 9, 3, 1);
-      pipe = new DatePipe();
+      pipe = new DatePipe('en-US');
     });
 
     it('should be marked as pure',
diff --git a/modules/@angular/common/test/pipes/number_pipe_spec.ts b/modules/@angular/common/test/pipes/number_pipe_spec.ts
index bb26effe22..b52812f057 100644
--- a/modules/@angular/common/test/pipes/number_pipe_spec.ts
+++ b/modules/@angular/common/test/pipes/number_pipe_spec.ts
@@ -19,7 +19,7 @@ export function main() {
       describe('DecimalPipe', () => {
         var pipe: DecimalPipe;
 
-        beforeEach(() => { pipe = new DecimalPipe(); });
+        beforeEach(() => { pipe = new DecimalPipe('en-US'); });
 
         describe('transform', () => {
           it('should return correct value for numbers', () => {
@@ -50,7 +50,7 @@ export function main() {
       describe('PercentPipe', () => {
         var pipe: PercentPipe;
 
-        beforeEach(() => { pipe = new PercentPipe(); });
+        beforeEach(() => { pipe = new PercentPipe('en-US'); });
 
         describe('transform', () => {
           it('should return correct value for numbers', () => {
@@ -66,7 +66,7 @@ export function main() {
       describe('CurrencyPipe', () => {
         var pipe: CurrencyPipe;
 
-        beforeEach(() => { pipe = new CurrencyPipe(); });
+        beforeEach(() => { pipe = new CurrencyPipe('en-US'); });
 
         describe('transform', () => {
           it('should return correct value for numbers', () => {
diff --git a/tools/public_api_guard/common/index.d.ts b/tools/public_api_guard/common/index.d.ts
index ceae67d981..83ba08ee01 100644
--- a/tools/public_api_guard/common/index.d.ts
+++ b/tools/public_api_guard/common/index.d.ts
@@ -14,16 +14,19 @@ export declare class CommonModule {
 
 /** @stable */
 export declare class CurrencyPipe implements PipeTransform {
+    constructor(_locale: string);
     transform(value: any, currencyCode?: string, symbolDisplay?: boolean, digits?: string): string;
 }
 
 /** @stable */
 export declare class DatePipe implements PipeTransform {
+    constructor(_locale: string);
     transform(value: any, pattern?: string): string;
 }
 
 /** @stable */
 export declare class DecimalPipe implements PipeTransform {
+    constructor(_locale: string);
     transform(value: any, digits?: string): string;
 }
 
@@ -196,6 +199,7 @@ export declare class PathLocationStrategy extends LocationStrategy {
 
 /** @stable */
 export declare class PercentPipe implements PipeTransform {
+    constructor(_locale: string);
     transform(value: any, digits?: string): string;
 }