diff --git a/datafusion/execution/src/disk_manager.rs b/datafusion/execution/src/disk_manager.rs
index 070ea5334366e..c3c8559e4ba47 100644
--- a/datafusion/execution/src/disk_manager.rs
+++ b/datafusion/execution/src/disk_manager.rs
@@ -117,46 +117,6 @@ pub enum DiskManagerMode {
     Disabled,
 }
 
-/// Configuration for temporary disk access
-#[deprecated(since = "48.0.0", note = "Use DiskManagerBuilder instead")]
-#[derive(Debug, Clone, Default)]
-#[allow(clippy::allow_attributes)]
-#[allow(deprecated)]
-pub enum DiskManagerConfig {
-    /// Use the provided [DiskManager] instance
-    Existing(Arc<DiskManager>),
-
-    /// Create a new [DiskManager] that creates temporary files within
-    /// a temporary directory chosen by the OS
-    #[default]
-    NewOs,
-
-    /// Create a new [DiskManager] that creates temporary files within
-    /// the specified directories
-    NewSpecified(Vec<PathBuf>),
-
-    /// Disable disk manager, attempts to create temporary files will error
-    Disabled,
-}
-
-#[expect(deprecated)]
-impl DiskManagerConfig {
-    /// Create temporary files in a temporary directory chosen by the OS
-    pub fn new() -> Self {
-        Self::default()
-    }
-
-    /// Create temporary files using the provided disk manager
-    pub fn new_existing(existing: Arc<DiskManager>) -> Self {
-        Self::Existing(existing)
-    }
-
-    /// Create temporary files in the specified directories
-    pub fn new_specified(paths: Vec<PathBuf>) -> Self {
-        Self::NewSpecified(paths)
-    }
-}
-
 /// Manages files generated during query execution, e.g. spill files generated
 /// while processing dataset larger than available memory.
 #[derive(Debug)]
@@ -192,41 +152,6 @@ impl DiskManager {
         DiskManagerBuilder::default()
     }
 
-    /// Create a DiskManager given the configuration
-    #[expect(deprecated)]
-    #[deprecated(since = "48.0.0", note = "Use DiskManager::builder() instead")]
-    pub fn try_new(config: DiskManagerConfig) -> Result<Arc<Self>> {
-        match config {
-            DiskManagerConfig::Existing(manager) => Ok(manager),
-            DiskManagerConfig::NewOs => Ok(Arc::new(Self {
-                local_dirs: Mutex::new(Some(vec![])),
-                max_temp_directory_size: AtomicU64::new(DEFAULT_MAX_TEMP_DIRECTORY_SIZE),
-                used_disk_space: Arc::new(AtomicU64::new(0)),
-                active_files_count: Arc::new(AtomicUsize::new(0)),
-            })),
-            DiskManagerConfig::NewSpecified(conf_dirs) => {
-                let local_dirs = create_local_dirs(&conf_dirs)?;
-                debug!(
-                    "Created local dirs {local_dirs:?} as DataFusion working directory"
-                );
-                Ok(Arc::new(Self {
-                    local_dirs: Mutex::new(Some(local_dirs)),
-                    max_temp_directory_size: AtomicU64::new(
-                        DEFAULT_MAX_TEMP_DIRECTORY_SIZE,
-                    ),
-                    used_disk_space: Arc::new(AtomicU64::new(0)),
-                    active_files_count: Arc::new(AtomicUsize::new(0)),
-                }))
-            }
-            DiskManagerConfig::Disabled => Ok(Arc::new(Self {
-                local_dirs: Mutex::new(None),
-                max_temp_directory_size: AtomicU64::new(DEFAULT_MAX_TEMP_DIRECTORY_SIZE),
-                used_disk_space: Arc::new(AtomicU64::new(0)),
-                active_files_count: Arc::new(AtomicUsize::new(0)),
-            })),
-        }
-    }
-
     /// Atomically set the max temp directory size at runtime.
     ///
     /// Takes `&self`, so it works through `Arc<DiskManager>` without requiring
diff --git a/datafusion/execution/src/runtime_env.rs b/datafusion/execution/src/runtime_env.rs
index 5b90f28a141ef..22b65c41897bb 100644
--- a/datafusion/execution/src/runtime_env.rs
+++ b/datafusion/execution/src/runtime_env.rs
@@ -18,8 +18,7 @@
 //! Execution [`RuntimeEnv`] environment that manages access to object
 //! store, memory manager, disk manager.
 
-#[expect(deprecated)]
-use crate::disk_manager::{DiskManagerConfig, SpillingProgress};
+use crate::disk_manager::SpillingProgress;
 use crate::{
     disk_manager::{DiskManager, DiskManagerBuilder, DiskManagerMode},
     memory_pool::{
@@ -333,9 +332,8 @@ impl Default for RuntimeEnv {
 /// See example on [`RuntimeEnv`]
 #[derive(Clone)]
 pub struct RuntimeEnvBuilder {
-    #[expect(deprecated)]
     /// DiskManager to manage temporary disk file usage
-    pub disk_manager: DiskManagerConfig,
+    pub disk_manager: Option<Arc<DiskManager>>,
     /// DiskManager builder to manager temporary disk file usage
     pub disk_manager_builder: Option<DiskManagerBuilder>,
     /// [`MemoryPool`] from which to allocate memory
@@ -371,14 +369,6 @@ impl RuntimeEnvBuilder {
         }
     }
 
-    #[expect(deprecated)]
-    #[deprecated(since = "48.0.0", note = "Use with_disk_manager_builder instead")]
-    /// Customize disk manager
-    pub fn with_disk_manager(mut self, disk_manager: DiskManagerConfig) -> Self {
-        self.disk_manager = disk_manager;
-        self
-    }
-
     /// Customize the disk manager builder
     pub fn with_disk_manager_builder(mut self, disk_manager: DiskManagerBuilder) -> Self {
         self.disk_manager_builder = Some(disk_manager);
@@ -472,14 +462,15 @@ impl RuntimeEnvBuilder {
         let memory_pool =
             memory_pool.unwrap_or_else(|| Arc::new(UnboundedMemoryPool::default()));
 
+        let disk_manager: Arc<DiskManager> = match (disk_manager, disk_manager_builder) {
+            (_, Some(builder)) => Arc::new(builder.build()?),
+            (Some(manager), None) => manager,
+            (None, None) => Arc::new(DiskManagerBuilder::default().build()?),
+        };
+
         Ok(RuntimeEnv {
             memory_pool,
-            disk_manager: if let Some(builder) = disk_manager_builder {
-                Arc::new(builder.build()?)
-            } else {
-                #[expect(deprecated)]
-                DiskManager::try_new(disk_manager)?
-            },
+            disk_manager,
             cache_manager: CacheManager::try_new(&cache_manager)?,
             object_store_registry,
             #[cfg(feature = "parquet_encryption")]
@@ -511,10 +502,7 @@ impl RuntimeEnvBuilder {
         };
 
         Self {
-            #[expect(deprecated)]
-            disk_manager: DiskManagerConfig::Existing(Arc::clone(
-                &runtime_env.disk_manager,
-            )),
+            disk_manager: Some(Arc::clone(&runtime_env.disk_manager)),
             disk_manager_builder: None,
             memory_pool: Some(Arc::clone(&runtime_env.memory_pool)),
             cache_manager: cache_config,