diff --git a/samples/drivers/mbox/CMakeLists.txt b/samples/drivers/mbox/CMakeLists.txt
index 4344f4f3ce9..ca6513822a8 100644
--- a/samples/drivers/mbox/CMakeLists.txt
+++ b/samples/drivers/mbox/CMakeLists.txt
@@ -1,6 +1,6 @@
 #
 # Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com>
-# Copyright 2023 NXP
+# Copyright 2023-2024 NXP
 #
 # SPDX-License-Identifier: Apache-2.0
 #
@@ -17,7 +17,8 @@ if(("${BOARD}" STREQUAL "nrf5340dk_nrf5340_cpuapp") OR
    ("${BOARD}" STREQUAL "mimxrt1170_evkb_cm7") OR
    ("${BOARD}" STREQUAL "mimxrt1170_evk_cm7") OR
    ("${BOARD}" STREQUAL "mimxrt1160_evk_cm7") OR
-   ("${BOARD}" STREQUAL "mimxrt595_evk_cm33"))
+   ("${BOARD}" STREQUAL "mimxrt595_evk_cm33") OR
+   ("${BOARD}" STREQUAL "lpcxpresso55s69_cpu0"))
   message(STATUS "${BOARD} compile as Main in this sample")
 else()
   message(FATAL_ERROR "${BOARD} is not supported for this sample")
diff --git a/samples/drivers/mbox/Kconfig.sysbuild b/samples/drivers/mbox/Kconfig.sysbuild
index f472576df82..20903872c34 100644
--- a/samples/drivers/mbox/Kconfig.sysbuild
+++ b/samples/drivers/mbox/Kconfig.sysbuild
@@ -1,5 +1,5 @@
 # Copyright 2023 Nordic Semiconductor ASA
-# Copyright 2023 NXP
+# Copyright 2023-2024 NXP
 #
 # SPDX-License-Identifier: Apache-2.0
 
@@ -14,3 +14,4 @@ string
 	default "mimxrt1170_evkb_cm4" if $(BOARD) = "mimxrt1170_evkb_cm7"
 	default "mimxrt1170_evk_cm4" if $(BOARD) = "mimxrt1170_evk_cm7"
 	default "mimxrt1160_evk_cm4" if $(BOARD) = "mimxrt1160_evk_cm7"
+	default "lpcxpresso55s69_cpu1" if $(BOARD) = "lpcxpresso55s69_cpu0"
diff --git a/samples/drivers/mbox/boards/lpcxpresso55s69_cpu0.conf b/samples/drivers/mbox/boards/lpcxpresso55s69_cpu0.conf
new file mode 100644
index 00000000000..5077d775881
--- /dev/null
+++ b/samples/drivers/mbox/boards/lpcxpresso55s69_cpu0.conf
@@ -0,0 +1,3 @@
+CONFIG_SECOND_CORE_MCUX=y
+CONFIG_MBOX_NXP_MAILBOX=y
+CONFIG_BUILD_OUTPUT_HEX=y
diff --git a/samples/drivers/mbox/boards/lpcxpresso55s69_cpu0.overlay b/samples/drivers/mbox/boards/lpcxpresso55s69_cpu0.overlay
new file mode 100644
index 00000000000..b5919c4fd72
--- /dev/null
+++ b/samples/drivers/mbox/boards/lpcxpresso55s69_cpu0.overlay
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		/* Delete ipc chosen property where old IPM mailbox driver bellow is
+		 * configured.
+		 */
+		/delete-property/ zephyr,ipc;
+	};
+
+	soc {
+		/* Delete IPM Driver node nxp,lpc-mailbox */
+		/delete-node/ mailbox@8b000;
+
+		/* Attach MBOX driver to Mailbox Unit */
+		mbox:mailbox0@5008b000 {
+			compatible = "nxp,mbox-mailbox";
+			reg = <0x5008b000 0xEC>;
+			interrupts = <31 0>;
+			rx-channels = <4>;
+			#mbox-cells = <1>;
+			status = "okay";
+		};
+	};
+};
diff --git a/samples/drivers/mbox/remote/CMakeLists.txt b/samples/drivers/mbox/remote/CMakeLists.txt
index e7db9b8cadf..2c7c8fff29e 100644
--- a/samples/drivers/mbox/remote/CMakeLists.txt
+++ b/samples/drivers/mbox/remote/CMakeLists.txt
@@ -1,6 +1,6 @@
 #
 # Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com>
-# Copyright 2023 NXP
+# Copyright 2023-2024 NXP
 #
 # SPDX-License-Identifier: Apache-2.0
 #
@@ -14,6 +14,7 @@ if(("${BOARD}" STREQUAL "nrf5340dk_nrf5340_cpunet") OR
   ("${BOARD}" STREQUAL "mimxrt1170_evkb_cm4") OR
   ("${BOARD}" STREQUAL "mimxrt1170_evk_cm4") OR
   ("${BOARD}" STREQUAL "mimxrt1160_evk_cm4") OR
+  ("${BOARD}" STREQUAL "lpcxpresso55s69_cpu1") OR
   ("${BOARD}" STREQUAL "adp_xc7k_ae350"))
   message(STATUS "${BOARD} compile as remote in this sample")
 else()
diff --git a/samples/drivers/mbox/remote/boards/lpcxpresso55s69_cpu1.conf b/samples/drivers/mbox/remote/boards/lpcxpresso55s69_cpu1.conf
new file mode 100644
index 00000000000..b499f5da051
--- /dev/null
+++ b/samples/drivers/mbox/remote/boards/lpcxpresso55s69_cpu1.conf
@@ -0,0 +1,10 @@
+CONFIG_SECOND_CORE_MCUX=y
+CONFIG_BUILD_OUTPUT_HEX=y
+CONFIG_MBOX_NXP_MAILBOX=y
+
+# For purpose of sample enable UART Console on CPU1
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+CONFIG_SERIAL=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_CLOCK_CONTROL=y
diff --git a/samples/drivers/mbox/remote/boards/lpcxpresso55s69_cpu1.overlay b/samples/drivers/mbox/remote/boards/lpcxpresso55s69_cpu1.overlay
new file mode 100644
index 00000000000..36e6f0ff267
--- /dev/null
+++ b/samples/drivers/mbox/remote/boards/lpcxpresso55s69_cpu1.overlay
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		/* Delete ipc chosen property where old IPM mailbox driver bellow is
+		 * configured.
+		 */
+		/delete-property/ zephyr,ipc;
+		zephyr,console = &flexcomm0;
+		zephyr,shell-uart = &flexcomm0;
+	};
+
+	soc {
+		/* Delete IPM Driver node nxp,lpc-mailbox */
+		/delete-node/ mailbox@8b000;
+
+		/* Attach MBOX driver to Mailbox Unit */
+		mbox:mbox@5008b000 {
+			compatible = "nxp,mbox-mailbox";
+			reg = <0x5008b000 0xEC>;
+			interrupts = <31 0>;
+			rx-channels = <4>;
+			#mbox-cells = <1>;
+			status = "okay";
+		};
+	};
+};
+
+&flexcomm0 {
+	status = "okay";
+};
+
+&dma0 {
+	status = "okay";
+};
+
+&syscon {
+	status = "okay";
+};
diff --git a/samples/drivers/mbox/sample.yaml b/samples/drivers/mbox/sample.yaml
index e8015cf7c25..d646b241e9e 100644
--- a/samples/drivers/mbox/sample.yaml
+++ b/samples/drivers/mbox/sample.yaml
@@ -12,6 +12,7 @@ tests:
       - mimxrt1170_evkb_cm7
       - mimxrt1170_evk_cm7
       - mimxrt1160_evk_cm7
+      - lpcxpresso55s69_cpu0
     integration_platforms:
       - nrf5340dk_nrf5340_cpuapp
     harness: console
diff --git a/samples/drivers/mbox/sysbuild.cmake b/samples/drivers/mbox/sysbuild.cmake
index 7a5d32d4c74..063f6157ddb 100644
--- a/samples/drivers/mbox/sysbuild.cmake
+++ b/samples/drivers/mbox/sysbuild.cmake
@@ -1,5 +1,5 @@
 # Copyright (c) 2023 Nordic Semiconductor ASA
-# Copyright 2023 NXP
+# Copyright 2023-2024 NXP
 # SPDX-License-Identifier: Apache-2.0
 
 if("${SB_CONFIG_REMOTE_BOARD}" STREQUAL "")
@@ -22,7 +22,8 @@ native_simulator_set_final_executable(${DEFAULT_IMAGE})
 
 if ("${BOARD}" STREQUAL "mimxrt1170_evkb_cm7" OR
 	"${BOARD}" STREQUAL "mimxrt1170_evk_cm7"  OR
-	"${BOARD}" STREQUAL "mimxrt1160_evk_cm7"
+	"${BOARD}" STREQUAL "mimxrt1160_evk_cm7" OR
+	"${BOARD}" STREQUAL "lpcxpresso55s69_cpu0"
 	)
 	# For these NXP boards the main core application is dependent on
 	# 'zephyr_image_info.h' generated by remote application.
diff --git a/samples/drivers/mbox_data/CMakeLists.txt b/samples/drivers/mbox_data/CMakeLists.txt
index a67552bf52e..a410ac3d214 100644
--- a/samples/drivers/mbox_data/CMakeLists.txt
+++ b/samples/drivers/mbox_data/CMakeLists.txt
@@ -11,7 +11,8 @@ set(REMOTE_ZEPHYR_DIR ${CMAKE_CURRENT_BINARY_DIR}/../remote/zephyr)
 
 if(("${BOARD}" STREQUAL "mimxrt1170_evkb_cm7") OR
    ("${BOARD}" STREQUAL "mimxrt1170_evk_cm7") OR
-   ("${BOARD}" STREQUAL "mimxrt1160_evk_cm7"))
+   ("${BOARD}" STREQUAL "mimxrt1160_evk_cm7") OR
+   ("${BOARD}" STREQUAL "lpcxpresso55s69_cpu0"))
   message(STATUS "${BOARD} compile as Main in this sample")
 else()
   message(FATAL_ERROR "${BOARD} is not supported for this sample")
diff --git a/samples/drivers/mbox_data/Kconfig.sysbuild b/samples/drivers/mbox_data/Kconfig.sysbuild
index e355713e714..2ddab228177 100644
--- a/samples/drivers/mbox_data/Kconfig.sysbuild
+++ b/samples/drivers/mbox_data/Kconfig.sysbuild
@@ -9,3 +9,4 @@ string
 	default "mimxrt1170_evkb_cm4" if $(BOARD) = "mimxrt1170_evkb_cm7"
 	default "mimxrt1170_evk_cm4" if $(BOARD) = "mimxrt1170_evk_cm7"
 	default "mimxrt1160_evk_cm4" if $(BOARD) = "mimxrt1160_evk_cm7"
+	default "lpcxpresso55s69_cpu1" if $(BOARD) = "lpcxpresso55s69_cpu0"
diff --git a/samples/drivers/mbox_data/README.rst b/samples/drivers/mbox_data/README.rst
index 3ead1ec3b87..1f8b1615f8e 100644
--- a/samples/drivers/mbox_data/README.rst
+++ b/samples/drivers/mbox_data/README.rst
@@ -10,7 +10,7 @@ Overview
 This sample demonstrates how to use the :ref:`MBOX API <mbox_api>` in data transfer mode.
 It can be used only with mbox driver which supports data transfer mode.
 
-Sample will ping-pong 4 bytes of data between two cores via two mbox channels.
+Sample will ping-pong up to 4 bytes of data between two cores via two mbox channels.
 After each core receives data, it increments it by one and sends it back to other core.
 
 Building and Running
@@ -45,6 +45,15 @@ Building the application for mimxrt1170_evkb_cm7
    :goals: debug
    :west-args: --sysbuild
 
+Building the application for lpcxpresso55s69_cpu1
+=================================================
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/drivers/mbox_data/
+   :board: lpcxpresso55s69_cpu1
+   :goals: debug
+   :west-args: --sysbuild
+
 Sample Output
 =============
 
diff --git a/samples/drivers/mbox_data/boards/lpcxpresso55s69_cpu0.conf b/samples/drivers/mbox_data/boards/lpcxpresso55s69_cpu0.conf
new file mode 100644
index 00000000000..5077d775881
--- /dev/null
+++ b/samples/drivers/mbox_data/boards/lpcxpresso55s69_cpu0.conf
@@ -0,0 +1,3 @@
+CONFIG_SECOND_CORE_MCUX=y
+CONFIG_MBOX_NXP_MAILBOX=y
+CONFIG_BUILD_OUTPUT_HEX=y
diff --git a/samples/drivers/mbox_data/boards/lpcxpresso55s69_cpu0.overlay b/samples/drivers/mbox_data/boards/lpcxpresso55s69_cpu0.overlay
new file mode 100644
index 00000000000..b5919c4fd72
--- /dev/null
+++ b/samples/drivers/mbox_data/boards/lpcxpresso55s69_cpu0.overlay
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		/* Delete ipc chosen property where old IPM mailbox driver bellow is
+		 * configured.
+		 */
+		/delete-property/ zephyr,ipc;
+	};
+
+	soc {
+		/* Delete IPM Driver node nxp,lpc-mailbox */
+		/delete-node/ mailbox@8b000;
+
+		/* Attach MBOX driver to Mailbox Unit */
+		mbox:mailbox0@5008b000 {
+			compatible = "nxp,mbox-mailbox";
+			reg = <0x5008b000 0xEC>;
+			interrupts = <31 0>;
+			rx-channels = <4>;
+			#mbox-cells = <1>;
+			status = "okay";
+		};
+	};
+};
diff --git a/samples/drivers/mbox_data/remote/CMakeLists.txt b/samples/drivers/mbox_data/remote/CMakeLists.txt
index 31f6db9b641..47e1cae8628 100644
--- a/samples/drivers/mbox_data/remote/CMakeLists.txt
+++ b/samples/drivers/mbox_data/remote/CMakeLists.txt
@@ -9,7 +9,8 @@ find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 
 if(("${BOARD}" STREQUAL "mimxrt1170_evkb_cm4") OR
   ("${BOARD}" STREQUAL "mimxrt1170_evk_cm4") OR
-  ("${BOARD}" STREQUAL "mimxrt1160_evk_cm4"))
+  ("${BOARD}" STREQUAL "mimxrt1160_evk_cm4") OR
+  ("${BOARD}" STREQUAL "lpcxpresso55s69_cpu1"))
   message(STATUS "${BOARD} compile as remote in this sample")
 else()
   message(FATAL_ERROR "${BOARD} is not supported for this sample")
diff --git a/samples/drivers/mbox_data/remote/boards/lpcxpresso55s69_cpu1.conf b/samples/drivers/mbox_data/remote/boards/lpcxpresso55s69_cpu1.conf
new file mode 100644
index 00000000000..14ed92ba8f4
--- /dev/null
+++ b/samples/drivers/mbox_data/remote/boards/lpcxpresso55s69_cpu1.conf
@@ -0,0 +1,3 @@
+CONFIG_SECOND_CORE_MCUX=y
+CONFIG_BUILD_OUTPUT_HEX=y
+CONFIG_MBOX_NXP_MAILBOX=y
diff --git a/samples/drivers/mbox_data/remote/boards/lpcxpresso55s69_cpu1.overlay b/samples/drivers/mbox_data/remote/boards/lpcxpresso55s69_cpu1.overlay
new file mode 100644
index 00000000000..96bd5aa1c3a
--- /dev/null
+++ b/samples/drivers/mbox_data/remote/boards/lpcxpresso55s69_cpu1.overlay
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		/* Delete ipc chosen property where old IPM mailbox driver bellow is
+		 * configured.
+		 */
+		/delete-property/ zephyr,ipc;
+	};
+
+	soc {
+		/* Delete IPM Driver node nxp,lpc-mailbox */
+		/delete-node/ mailbox@8b000;
+
+		/* Attach MBOX driver to Mailbox Unit */
+		mbox:mbox@5008b000 {
+			compatible = "nxp,mbox-mailbox";
+			reg = <0x5008b000 0xEC>;
+			interrupts = <31 0>;
+			rx-channels = <4>;
+			#mbox-cells = <1>;
+			status = "okay";
+		};
+	};
+};
diff --git a/samples/drivers/mbox_data/remote/src/main.c b/samples/drivers/mbox_data/remote/src/main.c
index 9fccf155c23..0f3ad77a4d0 100644
--- a/samples/drivers/mbox_data/remote/src/main.c
+++ b/samples/drivers/mbox_data/remote/src/main.c
@@ -6,6 +6,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <zephyr/kernel.h>
 #include <zephyr/drivers/mbox.h>
 
@@ -41,6 +42,13 @@ int main(void)
 	mbox_init_channel(&tx_channel, dev, TX_ID);
 	mbox_init_channel(&rx_channel, dev, RX_ID);
 
+	const int max_transfer_size_bytes = mbox_mtu_get(dev);
+	/* Sample currently supports only transfer size up to 4 bytes */
+	if ((max_transfer_size_bytes <= 0) || (max_transfer_size_bytes > 4)) {
+		printk("mbox_mtu_get() error\n");
+		return 0;
+	}
+
 	if (mbox_register_callback(&rx_channel, callback, NULL)) {
 		printk("mbox_register_callback() error\n");
 		return 0;
@@ -61,7 +69,7 @@ int main(void)
 		message++;
 
 		msg.data = &message;
-		msg.size = 4;
+		msg.size = max_transfer_size_bytes;
 
 		printk("Server send (on channel %d) value: %d\n", tx_channel.id, message);
 		if (mbox_send(&tx_channel, &msg) < 0) {
diff --git a/samples/drivers/mbox_data/sample.yaml b/samples/drivers/mbox_data/sample.yaml
index 5484233b2e8..b4a1e23a9bc 100644
--- a/samples/drivers/mbox_data/sample.yaml
+++ b/samples/drivers/mbox_data/sample.yaml
@@ -9,8 +9,10 @@ tests:
       - mimxrt1170_evkb_cm7
       - mimxrt1170_evk_cm7
       - mimxrt1160_evk_cm7
+      - lpcxpresso55s69_cpu0
     integration_platforms:
       - mimxrt1160_evk_cm7
+      - lpcxpresso55s69_cpu0
     harness: console
     harness_config:
       type: multi_line
diff --git a/samples/drivers/mbox_data/src/main.c b/samples/drivers/mbox_data/src/main.c
index 27c29b07554..85df24940c4 100644
--- a/samples/drivers/mbox_data/src/main.c
+++ b/samples/drivers/mbox_data/src/main.c
@@ -6,6 +6,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <zephyr/kernel.h>
 #include <zephyr/drivers/mbox.h>
 
@@ -41,6 +42,13 @@ int main(void)
 	mbox_init_channel(&tx_channel, dev, TX_ID);
 	mbox_init_channel(&rx_channel, dev, RX_ID);
 
+	const int max_transfer_size_bytes = mbox_mtu_get(dev);
+	/* Sample currently supports only transfer size up to 4 bytes */
+	if ((max_transfer_size_bytes < 0) || (max_transfer_size_bytes > 4)) {
+		printk("mbox_mtu_get() error\n");
+		return 0;
+	}
+
 	if (mbox_register_callback(&rx_channel, callback, NULL)) {
 		printk("mbox_register_callback() error\n");
 		return 0;
@@ -53,7 +61,7 @@ int main(void)
 
 	while (message < 100) {
 		msg.data = &message;
-		msg.size = 4;
+		msg.size = max_transfer_size_bytes;
 
 		printk("Client send (on channel %d) value: %d\n", tx_channel.id, message);
 		if (mbox_send(&tx_channel, &msg) < 0) {
diff --git a/tests/drivers/mbox/mbox_data/CMakeLists.txt b/tests/drivers/mbox/mbox_data/CMakeLists.txt
index a67552bf52e..a410ac3d214 100644
--- a/tests/drivers/mbox/mbox_data/CMakeLists.txt
+++ b/tests/drivers/mbox/mbox_data/CMakeLists.txt
@@ -11,7 +11,8 @@ set(REMOTE_ZEPHYR_DIR ${CMAKE_CURRENT_BINARY_DIR}/../remote/zephyr)
 
 if(("${BOARD}" STREQUAL "mimxrt1170_evkb_cm7") OR
    ("${BOARD}" STREQUAL "mimxrt1170_evk_cm7") OR
-   ("${BOARD}" STREQUAL "mimxrt1160_evk_cm7"))
+   ("${BOARD}" STREQUAL "mimxrt1160_evk_cm7") OR
+   ("${BOARD}" STREQUAL "lpcxpresso55s69_cpu0"))
   message(STATUS "${BOARD} compile as Main in this sample")
 else()
   message(FATAL_ERROR "${BOARD} is not supported for this sample")
diff --git a/tests/drivers/mbox/mbox_data/Kconfig.sysbuild b/tests/drivers/mbox/mbox_data/Kconfig.sysbuild
index e355713e714..2ddab228177 100644
--- a/tests/drivers/mbox/mbox_data/Kconfig.sysbuild
+++ b/tests/drivers/mbox/mbox_data/Kconfig.sysbuild
@@ -9,3 +9,4 @@ string
 	default "mimxrt1170_evkb_cm4" if $(BOARD) = "mimxrt1170_evkb_cm7"
 	default "mimxrt1170_evk_cm4" if $(BOARD) = "mimxrt1170_evk_cm7"
 	default "mimxrt1160_evk_cm4" if $(BOARD) = "mimxrt1160_evk_cm7"
+	default "lpcxpresso55s69_cpu1" if $(BOARD) = "lpcxpresso55s69_cpu0"
diff --git a/tests/drivers/mbox/mbox_data/boards/lpcxpresso55s69_cpu0.conf b/tests/drivers/mbox/mbox_data/boards/lpcxpresso55s69_cpu0.conf
new file mode 100644
index 00000000000..5077d775881
--- /dev/null
+++ b/tests/drivers/mbox/mbox_data/boards/lpcxpresso55s69_cpu0.conf
@@ -0,0 +1,3 @@
+CONFIG_SECOND_CORE_MCUX=y
+CONFIG_MBOX_NXP_MAILBOX=y
+CONFIG_BUILD_OUTPUT_HEX=y
diff --git a/tests/drivers/mbox/mbox_data/boards/lpcxpresso55s69_cpu0.overlay b/tests/drivers/mbox/mbox_data/boards/lpcxpresso55s69_cpu0.overlay
new file mode 100644
index 00000000000..b5919c4fd72
--- /dev/null
+++ b/tests/drivers/mbox/mbox_data/boards/lpcxpresso55s69_cpu0.overlay
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		/* Delete ipc chosen property where old IPM mailbox driver bellow is
+		 * configured.
+		 */
+		/delete-property/ zephyr,ipc;
+	};
+
+	soc {
+		/* Delete IPM Driver node nxp,lpc-mailbox */
+		/delete-node/ mailbox@8b000;
+
+		/* Attach MBOX driver to Mailbox Unit */
+		mbox:mailbox0@5008b000 {
+			compatible = "nxp,mbox-mailbox";
+			reg = <0x5008b000 0xEC>;
+			interrupts = <31 0>;
+			rx-channels = <4>;
+			#mbox-cells = <1>;
+			status = "okay";
+		};
+	};
+};
diff --git a/tests/drivers/mbox/mbox_data/remote/CMakeLists.txt b/tests/drivers/mbox/mbox_data/remote/CMakeLists.txt
index 31f6db9b641..47e1cae8628 100644
--- a/tests/drivers/mbox/mbox_data/remote/CMakeLists.txt
+++ b/tests/drivers/mbox/mbox_data/remote/CMakeLists.txt
@@ -9,7 +9,8 @@ find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 
 if(("${BOARD}" STREQUAL "mimxrt1170_evkb_cm4") OR
   ("${BOARD}" STREQUAL "mimxrt1170_evk_cm4") OR
-  ("${BOARD}" STREQUAL "mimxrt1160_evk_cm4"))
+  ("${BOARD}" STREQUAL "mimxrt1160_evk_cm4") OR
+  ("${BOARD}" STREQUAL "lpcxpresso55s69_cpu1"))
   message(STATUS "${BOARD} compile as remote in this sample")
 else()
   message(FATAL_ERROR "${BOARD} is not supported for this sample")
diff --git a/tests/drivers/mbox/mbox_data/remote/boards/lpcxpresso55s69_cpu1.conf b/tests/drivers/mbox/mbox_data/remote/boards/lpcxpresso55s69_cpu1.conf
new file mode 100644
index 00000000000..14ed92ba8f4
--- /dev/null
+++ b/tests/drivers/mbox/mbox_data/remote/boards/lpcxpresso55s69_cpu1.conf
@@ -0,0 +1,3 @@
+CONFIG_SECOND_CORE_MCUX=y
+CONFIG_BUILD_OUTPUT_HEX=y
+CONFIG_MBOX_NXP_MAILBOX=y
diff --git a/tests/drivers/mbox/mbox_data/remote/boards/lpcxpresso55s69_cpu1.overlay b/tests/drivers/mbox/mbox_data/remote/boards/lpcxpresso55s69_cpu1.overlay
new file mode 100644
index 00000000000..96bd5aa1c3a
--- /dev/null
+++ b/tests/drivers/mbox/mbox_data/remote/boards/lpcxpresso55s69_cpu1.overlay
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		/* Delete ipc chosen property where old IPM mailbox driver bellow is
+		 * configured.
+		 */
+		/delete-property/ zephyr,ipc;
+	};
+
+	soc {
+		/* Delete IPM Driver node nxp,lpc-mailbox */
+		/delete-node/ mailbox@8b000;
+
+		/* Attach MBOX driver to Mailbox Unit */
+		mbox:mbox@5008b000 {
+			compatible = "nxp,mbox-mailbox";
+			reg = <0x5008b000 0xEC>;
+			interrupts = <31 0>;
+			rx-channels = <4>;
+			#mbox-cells = <1>;
+			status = "okay";
+		};
+	};
+};
diff --git a/tests/drivers/mbox/mbox_data/remote/src/main.c b/tests/drivers/mbox/mbox_data/remote/src/main.c
index 7bbc1c2efd0..d9eba4d3b7c 100644
--- a/tests/drivers/mbox/mbox_data/remote/src/main.c
+++ b/tests/drivers/mbox/mbox_data/remote/src/main.c
@@ -6,6 +6,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <zephyr/kernel.h>
 #include <zephyr/drivers/mbox.h>
 
@@ -50,6 +51,13 @@ int main(void)
 
 	dev = DEVICE_DT_GET(DT_NODELABEL(mbox));
 
+	const int max_transfer_size_bytes = mbox_mtu_get(dev);
+	/* Sample currently supports only transfer size up to 4 bytes */
+	if ((max_transfer_size_bytes <= 0) || (max_transfer_size_bytes > 4)) {
+		printk("mbox_mtu_get() error\n");
+		return 0;
+	}
+
 	for (int i_test_channel = 0; i_test_channel < CHANNELS_TO_TEST; i_test_channel++) {
 		mbox_init_channel(&tx_channel, dev,
 				  TEST_CHANNELS[i_test_channel][TX_CHANNEL_INDEX]);
@@ -77,7 +85,7 @@ int main(void)
 			message++;
 
 			msg.data = &message;
-			msg.size = 4;
+			msg.size = max_transfer_size_bytes;
 
 			if (mbox_send(&tx_channel, &msg) < 0) {
 				printk("mbox_send() error\n");
diff --git a/tests/drivers/mbox/mbox_data/src/main.c b/tests/drivers/mbox/mbox_data/src/main.c
index 1cdfb0ca43e..82cce00ae7f 100644
--- a/tests/drivers/mbox/mbox_data/src/main.c
+++ b/tests/drivers/mbox/mbox_data/src/main.c
@@ -6,6 +6,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <zephyr/kernel.h>
 #include <zephyr/drivers/mbox.h>
 
@@ -20,6 +21,7 @@ static uint32_t g_mbox_expected_channel;
 
 static bool g_received_size_error;
 static size_t g_received_size;
+static int g_max_transfer_size_bytes;
 
 static struct mbox_channel g_tx_channel;
 static struct mbox_channel g_rx_channel;
@@ -65,6 +67,14 @@ static void mbox_data_tests_before(void *f)
 
 	dev = DEVICE_DT_GET(DT_NODELABEL(mbox));
 
+	g_max_transfer_size_bytes = mbox_mtu_get(dev);
+	/* Test currently supports only transfer size up to 4 bytes */
+	if ((g_max_transfer_size_bytes < 0) || (g_max_transfer_size_bytes > 4)) {
+		printk("mbox_mtu_get() error\n");
+		zassert_false(1, "mbox invalid maximum transfer unit: %d",
+			      g_max_transfer_size_bytes);
+	}
+
 	mbox_init_channel(&g_tx_channel, dev,
 			  TEST_CHANNELS[current_channel_index][TX_CHANNEL_INDEX]);
 	mbox_init_channel(&g_rx_channel, dev,
@@ -98,14 +108,17 @@ static void mbox_test(const uint32_t data)
 	while (test_count < 100) {
 		/* Main core prepare test data */
 		msg.data = &test_data;
-		msg.size = 4;
+		msg.size = g_max_transfer_size_bytes;
 
 		/* Main core send test data */
 		ret_val = mbox_send(&g_tx_channel, &msg);
 		zassert_false(ret_val < 0, "mbox failed to send. ret_val: %d", ret_val);
 
-		/* Expect next received data will be incremented by one */
-		g_mbox_expected_data = test_data;
+		/* Expect next received data will be incremented by one.
+		 * And based on Maximum Transfer Unit determine expected data.
+		 * Currently supported MTU's are 1, 2, 3, and 4 bytes.
+		 */
+		g_mbox_expected_data = test_data & ~(0xFFFFFFFF << (g_max_transfer_size_bytes * 8));
 		g_mbox_expected_data++;
 
 		k_sem_take(&g_mbox_data_rx_sem, K_FOREVER);
diff --git a/tests/drivers/mbox/mbox_data/testcase.yaml b/tests/drivers/mbox/mbox_data/testcase.yaml
index d4890ff7c55..72aff63ac3a 100644
--- a/tests/drivers/mbox/mbox_data/testcase.yaml
+++ b/tests/drivers/mbox/mbox_data/testcase.yaml
@@ -8,5 +8,7 @@ tests:
       - mimxrt1170_evkb_cm7
       - mimxrt1170_evk_cm7
       - mimxrt1160_evk_cm7
+      - lpcxpresso55s69_cpu0
     integration_platforms:
       - mimxrt1170_evkb_cm7
+      - lpcxpresso55s69_cpu0
diff --git a/west.yml b/west.yml
index 065c2b617b1..0f130ef20d5 100644
--- a/west.yml
+++ b/west.yml
@@ -193,7 +193,7 @@ manifest:
       groups:
         - hal
     - name: hal_nxp
-      revision: ae438701d6029f4f989fe036abe4b91be51e6258
+      revision: 0463d6aa0de62761fb9ae56e3521c61b0e490374
       path: modules/hal/nxp
       groups:
         - hal