diff --git a/externs/olx.js b/externs/olx.js
index 9a9771e74e..039a95daf2 100644
--- a/externs/olx.js
+++ b/externs/olx.js
@@ -3904,7 +3904,8 @@ olx.source;
 
 
 /**
- * @typedef {{culture: (string|undefined),
+ * @typedef {{cacheSize: (number|undefined),
+ *     culture: (string|undefined),
  *     key: string,
  *     imagerySet: string,
  *     maxZoom: (number|undefined),
@@ -3916,6 +3917,14 @@ olx.source;
 olx.source.BingMapsOptions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.BingMapsOptions.prototype.cacheSize;
+
+
 /**
  * Culture code. Default is `en-us`.
  * @type {string|undefined}
@@ -4107,6 +4116,7 @@ olx.source.TileUTFGridOptions.prototype.url;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *            cacheSize: (number|undefined),
  *            crossOrigin: (null|string|undefined),
  *            logo: (string|olx.LogoOptions|undefined),
  *            opaque: (boolean|undefined),
@@ -4136,6 +4146,14 @@ olx.source.TileImageOptions;
 olx.source.TileImageOptions.prototype.attributions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.TileImageOptions.prototype.cacheSize;
+
+
 /**
  * The `crossOrigin` attribute for loaded images.  Note that you must provide a
  * `crossOrigin` value if you are using the WebGL renderer or if you want to
@@ -4270,6 +4288,7 @@ olx.source.TileImageOptions.prototype.wrapX;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *            cacheSize: (number|undefined),
  *            format: (ol.format.Feature|undefined),
  *            logo: (string|olx.LogoOptions|undefined),
  *            opaque: (boolean|undefined),
@@ -4298,6 +4317,15 @@ olx.source.VectorTileOptions;
 olx.source.VectorTileOptions.prototype.attributions;
 
 
+
+/**
+ * Cache size. Default is `128`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.VectorTileOptions.prototype.cacheSize;
+
+
 /**
  * Feature format for tiles. Used and required by the default
  * `tileLoadFunction`.
@@ -4518,7 +4546,8 @@ olx.source.ImageMapGuideOptions.prototype.params;
 
 
 /**
- * @typedef {{layer: string,
+ * @typedef {{cacheSize: (number|undefined),
+ *     layer: string,
  *     reprojectionErrorThreshold: (number|undefined),
  *     tileLoadFunction: (ol.TileLoadFunctionType|undefined),
  *     url: (string|undefined)}}
@@ -4527,6 +4556,14 @@ olx.source.ImageMapGuideOptions.prototype.params;
 olx.source.MapQuestOptions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.MapQuestOptions.prototype.cacheSize;
+
+
 /**
  * Layer. Possible values are `osm`, `sat`, and `hyb`.
  * @type {string}
@@ -4600,6 +4637,7 @@ olx.source.TileDebugOptions.prototype.wrapX;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *     cacheSize: (number|undefined),
  *     crossOrigin: (null|string|undefined),
  *     maxZoom: (number|undefined),
  *     opaque: (boolean|undefined),
@@ -4620,6 +4658,14 @@ olx.source.OSMOptions;
 olx.source.OSMOptions.prototype.attributions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.OSMOptions.prototype.cacheSize;
+
+
 /**
  * The `crossOrigin` attribute for loaded images.  Note that you must provide a
  * `crossOrigin` value if you are using the WebGL renderer or if you want to
@@ -5016,7 +5062,8 @@ olx.source.ImageWMSOptions.prototype.url;
 
 
 /**
- * @typedef {{layer: string,
+ * @typedef {{cacheSize: (number|undefined),
+ *     layer: string,
  *     minZoom: (number|undefined),
  *     maxZoom: (number|undefined),
  *     opaque: (boolean|undefined),
@@ -5028,6 +5075,13 @@ olx.source.ImageWMSOptions.prototype.url;
 olx.source.StamenOptions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.StamenOptions.prototype.cacheSize;
+
 /**
  * Layer.
  * @type {string}
@@ -5176,6 +5230,7 @@ olx.source.ImageStaticOptions.prototype.url;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *     cacheSize: (number|undefined),
  *     crossOrigin: (null|string|undefined),
  *     params: (Object.<string, *>|undefined),
  *     logo: (string|olx.LogoOptions|undefined),
@@ -5199,6 +5254,14 @@ olx.source.TileArcGISRestOptions;
 olx.source.TileArcGISRestOptions.prototype.attributions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.TileArcGISRestOptions.prototype.cacheSize;
+
+
 /**
  * The `crossOrigin` attribute for loaded images.  Note that you must provide a
  * `crossOrigin` value if you are using the WebGL renderer or if you want to
@@ -5303,6 +5366,7 @@ olx.source.TileArcGISRestOptions.prototype.urls;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *     cacheSize: (number|undefined),
  *     crossOrigin: (null|string|undefined),
  *     jsonp: (boolean|undefined),
  *     reprojectionErrorThreshold: (number|undefined),
@@ -5324,6 +5388,14 @@ olx.source.TileJSONOptions;
 olx.source.TileJSONOptions.prototype.attributions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.TileJSONOptions.prototype.cacheSize;
+
+
 /**
  * The `crossOrigin` attribute for loaded images.  Note that you must provide a
  * `crossOrigin` value if you are using the WebGL renderer or if you want to
@@ -5385,6 +5457,7 @@ olx.source.TileJSONOptions.prototype.wrapX;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *     cacheSize: (number|undefined),
  *     params: Object.<string,*>,
  *     crossOrigin: (null|string|undefined),
  *     gutter: (number|undefined),
@@ -5412,6 +5485,14 @@ olx.source.TileWMSOptions;
 olx.source.TileWMSOptions.prototype.attributions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.TileWMSOptions.prototype.cacheSize;
+
+
 /**
  * WMS request parameters. At least a `LAYERS` param is required. `STYLES` is
  * `''` by default. `VERSION` is `1.3.0` by default. `WIDTH`, `HEIGHT`, `BBOX`
@@ -5675,6 +5756,7 @@ olx.source.VectorOptions.prototype.wrapX;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *     cacheSize: (number|undefined),
  *     crossOrigin: (string|null|undefined),
  *     logo: (string|olx.LogoOptions|undefined),
  *     tileGrid: ol.tilegrid.WMTS,
@@ -5709,6 +5791,14 @@ olx.source.WMTSOptions;
 olx.source.WMTSOptions.prototype.attributions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.WMTSOptions.prototype.cacheSize;
+
+
 /**
  * The `crossOrigin` attribute for loaded images.  Note that you must provide a
  * `crossOrigin` value if you are using the WebGL renderer or if you want to
@@ -5882,6 +5972,7 @@ olx.source.WMTSOptions.prototype.wrapX;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *     cacheSize: (number|undefined),
  *     crossOrigin: (null|string|undefined),
  *     logo: (string|olx.LogoOptions|undefined),
  *     opaque: (boolean|undefined),
@@ -5910,6 +6001,14 @@ olx.source.XYZOptions;
 olx.source.XYZOptions.prototype.attributions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.XYZOptions.prototype.cacheSize;
+
+
 /**
  * The `crossOrigin` attribute for loaded images.  Note that you must provide a
  * `crossOrigin` value if you are using the WebGL renderer or if you want to
@@ -6048,6 +6147,7 @@ olx.source.XYZOptions.prototype.wrapX;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *     cacheSize: (number|undefined),
  *     crossOrigin: (null|string|undefined),
  *     logo: (string|olx.LogoOptions|undefined),
  *     reprojectionErrorThreshold: (number|undefined),
@@ -6067,6 +6167,14 @@ olx.source.ZoomifyOptions;
 olx.source.ZoomifyOptions.prototype.attributions;
 
 
+/**
+ * Cache size. Default is `2048`.
+ * @type {number|undefined}
+ * @api
+ */
+olx.source.ZoomifyOptions.prototype.cacheSize;
+
+
 /**
  * The `crossOrigin` attribute for loaded images.  Note that you must provide a
  * `crossOrigin` value if you are using the WebGL renderer or if you want to
diff --git a/src/ol/source/bingmapssource.js b/src/ol/source/bingmapssource.js
index a2adf057f4..39377efea4 100644
--- a/src/ol/source/bingmapssource.js
+++ b/src/ol/source/bingmapssource.js
@@ -24,6 +24,7 @@ goog.require('ol.tilecoord');
 ol.source.BingMaps = function(options) {
 
   goog.base(this, {
+    cacheSize: options.cacheSize,
     crossOrigin: 'anonymous',
     opaque: true,
     projection: ol.proj.get('EPSG:3857'),
diff --git a/src/ol/source/mapquestsource.js b/src/ol/source/mapquestsource.js
index a7f6ed1401..860f647e1e 100644
--- a/src/ol/source/mapquestsource.js
+++ b/src/ol/source/mapquestsource.js
@@ -36,6 +36,7 @@ ol.source.MapQuest = function(opt_options) {
 
   goog.base(this, {
     attributions: layerConfig.attributions,
+    cacheSize: options.cacheSize,
     crossOrigin: 'anonymous',
     logo: 'https://developer.mapquest.com/content/osm/mq_logo.png',
     maxZoom: layerConfig.maxZoom,
diff --git a/src/ol/source/osmsource.js b/src/ol/source/osmsource.js
index 91d9c69c93..c0d6800ef9 100644
--- a/src/ol/source/osmsource.js
+++ b/src/ol/source/osmsource.js
@@ -32,6 +32,7 @@ ol.source.OSM = function(opt_options) {
 
   goog.base(this, {
     attributions: attributions,
+    cacheSize: options.cacheSize,
     crossOrigin: crossOrigin,
     opaque: options.opaque !== undefined ? options.opaque : true,
     maxZoom: options.maxZoom !== undefined ? options.maxZoom : 19,
diff --git a/src/ol/source/stamensource.js b/src/ol/source/stamensource.js
index 2265e7d27f..c82a170139 100644
--- a/src/ol/source/stamensource.js
+++ b/src/ol/source/stamensource.js
@@ -103,6 +103,7 @@ ol.source.Stamen = function(options) {
 
   goog.base(this, {
     attributions: ol.source.Stamen.ATTRIBUTIONS,
+    cacheSize: options.cacheSize,
     crossOrigin: 'anonymous',
     maxZoom: providerConfig.maxZoom,
     // FIXME uncomment the following when tilegrid supports minZoom
diff --git a/src/ol/source/tilearcgisrestsource.js b/src/ol/source/tilearcgisrestsource.js
index a6f257794e..d72f00eafb 100644
--- a/src/ol/source/tilearcgisrestsource.js
+++ b/src/ol/source/tilearcgisrestsource.js
@@ -33,6 +33,7 @@ ol.source.TileArcGISRest = function(opt_options) {
 
   goog.base(this, {
     attributions: options.attributions,
+    cacheSize: options.cacheSize,
     crossOrigin: options.crossOrigin,
     logo: options.logo,
     projection: options.projection,
diff --git a/src/ol/source/tileimagesource.js b/src/ol/source/tileimagesource.js
index 13066682b2..5f623d67f4 100644
--- a/src/ol/source/tileimagesource.js
+++ b/src/ol/source/tileimagesource.js
@@ -25,6 +25,7 @@ ol.source.TileImage = function(options) {
 
   goog.base(this, {
     attributions: options.attributions,
+    cacheSize: options.cacheSize,
     extent: options.extent,
     logo: options.logo,
     opaque: options.opaque,
diff --git a/src/ol/source/tilejsonsource.js b/src/ol/source/tilejsonsource.js
index 05309fb651..09a991e5c3 100644
--- a/src/ol/source/tilejsonsource.js
+++ b/src/ol/source/tilejsonsource.js
@@ -31,6 +31,7 @@ ol.source.TileJSON = function(options) {
 
   goog.base(this, {
     attributions: options.attributions,
+    cacheSize: options.cacheSize,
     crossOrigin: options.crossOrigin,
     projection: ol.proj.get('EPSG:3857'),
     reprojectionErrorThreshold: options.reprojectionErrorThreshold,
diff --git a/src/ol/source/tilewmssource.js b/src/ol/source/tilewmssource.js
index f23c0babfa..f6d57cdf7e 100644
--- a/src/ol/source/tilewmssource.js
+++ b/src/ol/source/tilewmssource.js
@@ -39,6 +39,7 @@ ol.source.TileWMS = function(opt_options) {
 
   goog.base(this, {
     attributions: options.attributions,
+    cacheSize: options.cacheSize,
     crossOrigin: options.crossOrigin,
     logo: options.logo,
     opaque: !transparent,
diff --git a/src/ol/source/vectortilesource.js b/src/ol/source/vectortilesource.js
index b7417df27f..252e1b38fe 100644
--- a/src/ol/source/vectortilesource.js
+++ b/src/ol/source/vectortilesource.js
@@ -26,9 +26,12 @@ goog.require('ol.source.UrlTile');
  */
 ol.source.VectorTile = function(options) {
 
+  var cacheSize = options.cacheSize !== undefined ?
+      options.cacheSize : ol.DEFAULT_TILE_CACHE_HIGH_WATER_MARK / 16;
+
   goog.base(this, {
     attributions: options.attributions,
-    cacheSize: ol.DEFAULT_TILE_CACHE_HIGH_WATER_MARK / 16,
+    cacheSize: cacheSize,
     extent: options.extent,
     logo: options.logo,
     opaque: options.opaque,
diff --git a/src/ol/source/wmtssource.js b/src/ol/source/wmtssource.js
index 8b4ecdce35..a32e1698a7 100644
--- a/src/ol/source/wmtssource.js
+++ b/src/ol/source/wmtssource.js
@@ -174,6 +174,7 @@ ol.source.WMTS = function(options) {
 
   goog.base(this, {
     attributions: options.attributions,
+    cacheSize: options.cacheSize,
     crossOrigin: options.crossOrigin,
     logo: options.logo,
     projection: options.projection,
diff --git a/src/ol/source/xyzsource.js b/src/ol/source/xyzsource.js
index fa1c702d24..a9a2aa9aa1 100644
--- a/src/ol/source/xyzsource.js
+++ b/src/ol/source/xyzsource.js
@@ -38,6 +38,7 @@ ol.source.XYZ = function(options) {
 
   goog.base(this, {
     attributions: options.attributions,
+    cacheSize: options.cacheSize,
     crossOrigin: options.crossOrigin,
     logo: options.logo,
     opaque: options.opaque,
diff --git a/src/ol/source/zoomifysource.js b/src/ol/source/zoomifysource.js
index 1e7cfa9382..94a7cee0f8 100644
--- a/src/ol/source/zoomifysource.js
+++ b/src/ol/source/zoomifysource.js
@@ -121,6 +121,7 @@ ol.source.Zoomify = function(opt_options) {
 
   goog.base(this, {
     attributions: options.attributions,
+    cacheSize: options.cacheSize,
     crossOrigin: options.crossOrigin,
     logo: options.logo,
     reprojectionErrorThreshold: options.reprojectionErrorThreshold,