diff --git a/Marlin/src/inc/Conditionals_post.h b/Marlin/src/inc/Conditionals_post.h
index ffd457db41b9..c2eba215770b 100644
--- a/Marlin/src/inc/Conditionals_post.h
+++ b/Marlin/src/inc/Conditionals_post.h
@@ -2566,10 +2566,15 @@
   #define HAS_AUTO_FAN 1
   #define _FANOVERLAP(A,B) (A##_AUTO_FAN_PIN == E##B##_AUTO_FAN_PIN)
   #define _CHFANOVERLAP(A) || _FANOVERLAP(CHAMBER,B)
+  #define _COFANOVERLAP(A) || _FANOVERLAP(COOLER,B)
   #if HAS_AUTO_FAN && (0 REPEAT(8, _CHFANOVERLAP))
     #define AUTO_CHAMBER_IS_E 1
   #endif
+  #if HAS_AUTO_FAN && (0 REPEAT(8, _COFANOVERLAP))
+    #define AUTO_COOLER_IS_E 1
+  #endif
   #undef _CHFANOVERLAP
+  #undef _COFANOVERLAP
 #endif
 
 // Fans check
diff --git a/Marlin/src/module/temperature.cpp b/Marlin/src/module/temperature.cpp
index 0cf9cb252f2a..6b1fa03dab1b 100644
--- a/Marlin/src/module/temperature.cpp
+++ b/Marlin/src/module/temperature.cpp
@@ -1209,6 +1209,11 @@ int16_t Temperature::getHeaterPower(const heater_id_t heater_id) {
   #else
     #define INIT_CHAMBER_AUTO_FAN_PIN(P) SET_OUTPUT(P)
   #endif
+  #if COOLER_AUTO_FAN_SPEED != 255
+    #define INIT_COOLER_AUTO_FAN_PIN(P) do{ if (0 REPEAT2(FAN_COUNT, _IS_FAN_PIN, P)) { SET_PWM(P); SET_FAST_PWM_FREQ(P); } else SET_OUTPUT(P); }while(0)
+  #else
+    #define INIT_COOLER_AUTO_FAN_PIN(P) SET_OUTPUT(P)
+  #endif
 
   #ifndef CHAMBER_FAN_INDEX
     #define CHAMBER_FAN_INDEX HOTENDS
@@ -1222,9 +1227,16 @@ int16_t Temperature::getHeaterPower(const heater_id_t heater_id) {
         #define _NEXT_FAN(N) , REPEAT2(N,_EFAN,N) N
         RREPEAT_S(1, HOTENDS, _NEXT_FAN)
       #endif
+      #define _NFAN HOTENDS
       #if HAS_AUTO_CHAMBER_FAN
-        #define _CFAN(B) _FANOVERLAP(CHAMBER,B) ? B :
-        , REPEAT(HOTENDS,_CFAN) (HOTENDS)
+        #define _CHFAN(B) _FANOVERLAP(CHAMBER,B) ? B :
+        , (REPEAT(HOTENDS,_CHFAN) (_NFAN))
+        #undef _NFAN
+        #define _NFAN INCREMENT(HOTENDS)
+      #endif
+      #if HAS_AUTO_COOLER_FAN
+        #define _COFAN(B) _FANOVERLAP(COOLER,B) ? B :
+        , (REPEAT(HOTENDS,_COFAN) (_NFAN))
       #endif
     };
 
@@ -1282,6 +1294,9 @@ int16_t Temperature::getHeaterPower(const heater_id_t heater_id) {
         #if HAS_AUTO_CHAMBER_FAN && !AUTO_CHAMBER_IS_E
           case CHAMBER_FAN_INDEX: _UPDATE_AUTO_FAN(CHAMBER, fan_on, CHAMBER_AUTO_FAN_SPEED); break;
         #endif
+        #if HAS_AUTO_COOLER_FAN && !AUTO_COOLER_IS_E
+          case COOLER_FAN_INDEX: _UPDATE_AUTO_FAN(COOLER, fan_on, COOLER_AUTO_FAN_SPEED); break;
+        #endif
       }
       SBI(fanDone, realFan);
     }
@@ -2743,6 +2758,9 @@ void Temperature::init() {
     #if HAS_AUTO_CHAMBER_FAN && !AUTO_CHAMBER_IS_E
       INIT_CHAMBER_AUTO_FAN_PIN(CHAMBER_AUTO_FAN_PIN);
     #endif
+    #if HAS_AUTO_COOLER_FAN && !AUTO_COOLER_IS_E
+      INIT_COOLER_AUTO_FAN_PIN(COOLER_AUTO_FAN_PIN);
+    #endif
   #endif // HAS_AUTO_FAN
 
   #if HAS_HOTEND