diff --git a/crates/net/network/src/transactions/constants.rs b/crates/net/network/src/transactions/constants.rs
index 71ee9f7735..9e37f0786f 100644
--- a/crates/net/network/src/transactions/constants.rs
+++ b/crates/net/network/src/transactions/constants.rs
@@ -132,6 +132,15 @@ pub mod tx_fetcher {
     pub const DEFAULT_MAX_CAPACITY_CACHE_PENDING_FETCH: usize =
         100 * SOFT_LIMIT_COUNT_HASHES_IN_GET_POOLED_TRANSACTIONS_REQUEST;
 
+    /// Default max size for cache of inflight and pending transactions fetch.
+    ///
+    /// Default is [`DEFAULT_MAX_CAPACITY_CACHE_PENDING_FETCH`] +
+    /// [`DEFAULT_MAX_COUNT_INFLIGHT_REQUESTS_ON_FETCH_PENDING_HASHES`], which is 25600 hashes and
+    /// 65 requests, so it is 25665 hashes.
+    pub const DEFAULT_MAX_CAPACITY_CACHE_INFLIGHT_AND_PENDING_FETCH: usize =
+        DEFAULT_MAX_CAPACITY_CACHE_PENDING_FETCH +
+            DEFAULT_MAX_COUNT_INFLIGHT_REQUESTS_ON_FETCH_PENDING_HASHES;
+
     /// Default maximum number of hashes pending fetch to tolerate at any time.
     ///
     /// Default is half of [`DEFAULT_MAX_CAPACITY_CACHE_PENDING_FETCH`], which defaults to 25 600
diff --git a/crates/net/network/src/transactions/fetcher.rs b/crates/net/network/src/transactions/fetcher.rs
index 4c27b745d8..ef245e42d1 100644
--- a/crates/net/network/src/transactions/fetcher.rs
+++ b/crates/net/network/src/transactions/fetcher.rs
@@ -16,7 +16,7 @@ use reth_metrics::common::mpsc::{
     metered_unbounded_channel, UnboundedMeteredReceiver, UnboundedMeteredSender,
 };
 use reth_primitives::{PeerId, PooledTransactionsElement, TxHash};
-use schnellru::{ByLength, Unlimited};
+use schnellru::ByLength;
 #[cfg(debug_assertions)]
 use smallvec::{smallvec, SmallVec};
 use std::{
@@ -58,7 +58,7 @@ pub struct TransactionFetcher {
     /// which a [`GetPooledTransactions`] request is inflight.
     pub hashes_pending_fetch: LruCache<TxHash>,
     /// Tracks all hashes in the transaction fetcher.
-    pub(super) hashes_fetch_inflight_and_pending_fetch: LruMap<TxHash, TxFetchMetadata, Unlimited>,
+    pub(super) hashes_fetch_inflight_and_pending_fetch: LruMap<TxHash, TxFetchMetadata, ByLength>,
     /// Filter for valid announcement and response data.
     pub(super) filter_valid_message: MessageFilter,
     /// Info on capacity of the transaction fetcher.
@@ -949,7 +949,11 @@ impl Default for TransactionFetcher {
                 NonZeroUsize::new(DEFAULT_MAX_CAPACITY_CACHE_PENDING_FETCH)
                     .expect("buffered cache limit should be non-zero"),
             ),
-            hashes_fetch_inflight_and_pending_fetch: LruMap::new_unlimited(),
+            hashes_fetch_inflight_and_pending_fetch: LruMap::new(
+                DEFAULT_MAX_CAPACITY_CACHE_INFLIGHT_AND_PENDING_FETCH
+                    .try_into()
+                    .expect("proper size for inflight and pending fetch cache"),
+            ),
             filter_valid_message: Default::default(),
             info: TransactionFetcherInfo::default(),
             fetch_events_head,