diff --git a/beacon-chain/state/state-native/setters_withdrawal_test.go b/beacon-chain/state/state-native/setters_withdrawal_test.go
index a5885af7a1f5..55849ea36eda 100644
--- a/beacon-chain/state/state-native/setters_withdrawal_test.go
+++ b/beacon-chain/state/state-native/setters_withdrawal_test.go
@@ -18,11 +18,13 @@ func TestSetWithdrawalQueue(t *testing.T) {
 				WithdrawalIndex:  0,
 				ExecutionAddress: []byte("address1"),
 				Amount:           1,
+				ValidatorIndex:   2,
 			},
 			{
 				WithdrawalIndex:  1,
 				ExecutionAddress: []byte("address2"),
 				Amount:           2,
+				ValidatorIndex:   3,
 			},
 		}
 		newQ := []*enginev1.Withdrawal{
@@ -30,11 +32,13 @@ func TestSetWithdrawalQueue(t *testing.T) {
 				WithdrawalIndex:  2,
 				ExecutionAddress: []byte("address3"),
 				Amount:           3,
+				ValidatorIndex:   4,
 			},
 			{
 				WithdrawalIndex:  3,
 				ExecutionAddress: []byte("address4"),
 				Amount:           4,
+				ValidatorIndex:   5,
 			},
 		}
 		s := BeaconState{
@@ -61,11 +65,13 @@ func TestAppendWithdrawal(t *testing.T) {
 			WithdrawalIndex:  0,
 			ExecutionAddress: []byte("address1"),
 			Amount:           1,
+			ValidatorIndex:   2,
 		}
 		oldWithdrawal2 := &enginev1.Withdrawal{
 			WithdrawalIndex:  1,
 			ExecutionAddress: []byte("address2"),
 			Amount:           2,
+			ValidatorIndex:   3,
 		}
 		q := []*enginev1.Withdrawal{oldWithdrawal1, oldWithdrawal2}
 		s := BeaconState{
@@ -80,6 +86,7 @@ func TestAppendWithdrawal(t *testing.T) {
 			WithdrawalIndex:  2,
 			ExecutionAddress: []byte("address3"),
 			Amount:           3,
+			ValidatorIndex:   4,
 		}
 		err := s.AppendWithdrawal(newWithdrawal)
 		require.NoError(t, err)
diff --git a/proto/engine/v1/BUILD.bazel b/proto/engine/v1/BUILD.bazel
index f2eb36f807c3..202aede75cd6 100644
--- a/proto/engine/v1/BUILD.bazel
+++ b/proto/engine/v1/BUILD.bazel
@@ -31,6 +31,9 @@ proto_library(
 ssz_gen_marshal(
     name = "ssz_generated_files",
     go_proto = ":go_proto",
+    includes = [
+        "//consensus-types/primitives:go_default_library",
+    ],
     objs = [
         "ExecutionPayload",
         "ExecutionPayloadCapella",
diff --git a/proto/engine/v1/execution_engine.pb.go b/proto/engine/v1/execution_engine.pb.go
index 0ec70a97f93c..ee1d9b70e910 100755
--- a/proto/engine/v1/execution_engine.pb.go
+++ b/proto/engine/v1/execution_engine.pb.go
@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.0
+// 	protoc-gen-go v1.28.1
 // 	protoc        v3.15.8
 // source: proto/engine/v1/execution_engine.proto
 
@@ -10,6 +10,7 @@ import (
 	reflect "reflect"
 	sync "sync"
 
+	github_com_prysmaticlabs_prysm_v3_consensus_types_primitives "github.com/prysmaticlabs/prysm/v3/consensus-types/primitives"
 	_ "github.com/prysmaticlabs/prysm/v3/proto/eth/ext"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -957,9 +958,10 @@ type Withdrawal struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	WithdrawalIndex  uint64 `protobuf:"varint,1,opt,name=withdrawal_index,json=withdrawalIndex,proto3" json:"withdrawal_index,omitempty"`
-	ExecutionAddress []byte `protobuf:"bytes,2,opt,name=execution_address,json=executionAddress,proto3" json:"execution_address,omitempty" ssz-size:"20"`
-	Amount           uint64 `protobuf:"varint,3,opt,name=amount,proto3" json:"amount,omitempty"`
+	WithdrawalIndex  uint64                                                                      `protobuf:"varint,1,opt,name=withdrawal_index,json=withdrawalIndex,proto3" json:"withdrawal_index,omitempty"`
+	ValidatorIndex   github_com_prysmaticlabs_prysm_v3_consensus_types_primitives.ValidatorIndex `protobuf:"varint,2,opt,name=validator_index,json=validatorIndex,proto3" json:"validator_index,omitempty" cast-type:"github.com/prysmaticlabs/prysm/v3/consensus-types/primitives.ValidatorIndex"`
+	ExecutionAddress []byte                                                                      `protobuf:"bytes,3,opt,name=execution_address,json=executionAddress,proto3" json:"execution_address,omitempty" ssz-size:"20"`
+	Amount           uint64                                                                      `protobuf:"varint,4,opt,name=amount,proto3" json:"amount,omitempty"`
 }
 
 func (x *Withdrawal) Reset() {
@@ -1001,6 +1003,13 @@ func (x *Withdrawal) GetWithdrawalIndex() uint64 {
 	return 0
 }
 
+func (x *Withdrawal) GetValidatorIndex() github_com_prysmaticlabs_prysm_v3_consensus_types_primitives.ValidatorIndex {
+	if x != nil {
+		return x.ValidatorIndex
+	}
+	return github_com_prysmaticlabs_prysm_v3_consensus_types_primitives.ValidatorIndex(0)
+}
+
 func (x *Withdrawal) GetExecutionAddress() []byte {
 	if x != nil {
 		return x.ExecutionAddress
@@ -1227,26 +1236,33 @@ var file_proto_engine_v1_execution_engine_proto_rawDesc = []byte{
 	0x73, 0x68, 0x12, 0x38, 0x0a, 0x14, 0x66, 0x69, 0x6e, 0x61, 0x6c, 0x69, 0x7a, 0x65, 0x64, 0x5f,
 	0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x5f, 0x68, 0x61, 0x73, 0x68, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0c,
 	0x42, 0x06, 0x8a, 0xb5, 0x18, 0x02, 0x33, 0x32, 0x52, 0x12, 0x66, 0x69, 0x6e, 0x61, 0x6c, 0x69,
-	0x7a, 0x65, 0x64, 0x42, 0x6c, 0x6f, 0x63, 0x6b, 0x48, 0x61, 0x73, 0x68, 0x22, 0x84, 0x01, 0x0a,
+	0x7a, 0x65, 0x64, 0x42, 0x6c, 0x6f, 0x63, 0x6b, 0x48, 0x61, 0x73, 0x68, 0x22, 0xfe, 0x01, 0x0a,
 	0x0a, 0x57, 0x69, 0x74, 0x68, 0x64, 0x72, 0x61, 0x77, 0x61, 0x6c, 0x12, 0x29, 0x0a, 0x10, 0x77,
 	0x69, 0x74, 0x68, 0x64, 0x72, 0x61, 0x77, 0x61, 0x6c, 0x5f, 0x69, 0x6e, 0x64, 0x65, 0x78, 0x18,
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-	0x74, 0x69, 0x6f, 0x6e, 0x41, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x12, 0x16, 0x0a, 0x06, 0x61,
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-	0x75, 0x6e, 0x74, 0x42, 0x96, 0x01, 0x0a, 0x16, 0x6f, 0x72, 0x67, 0x2e, 0x65, 0x74, 0x68, 0x65,
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-	0x75, 0x6d, 0x5c, 0x45, 0x6e, 0x67, 0x69, 0x6e, 0x65, 0x5c, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x33,
+	0x6c, 0x49, 0x6e, 0x64, 0x65, 0x78, 0x12, 0x78, 0x0a, 0x0f, 0x76, 0x61, 0x6c, 0x69, 0x64, 0x61,
+	0x74, 0x6f, 0x72, 0x5f, 0x69, 0x6e, 0x64, 0x65, 0x78, 0x18, 0x02, 0x20, 0x01, 0x28, 0x04, 0x42,
+	0x4f, 0x82, 0xb5, 0x18, 0x4b, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
+	0x70, 0x72, 0x79, 0x73, 0x6d, 0x61, 0x74, 0x69, 0x63, 0x6c, 0x61, 0x62, 0x73, 0x2f, 0x70, 0x72,
+	0x79, 0x73, 0x6d, 0x2f, 0x76, 0x33, 0x2f, 0x63, 0x6f, 0x6e, 0x73, 0x65, 0x6e, 0x73, 0x75, 0x73,
+	0x2d, 0x74, 0x79, 0x70, 0x65, 0x73, 0x2f, 0x70, 0x72, 0x69, 0x6d, 0x69, 0x74, 0x69, 0x76, 0x65,
+	0x73, 0x2e, 0x56, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x6f, 0x72, 0x49, 0x6e, 0x64, 0x65, 0x78,
+	0x52, 0x0e, 0x76, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x6f, 0x72, 0x49, 0x6e, 0x64, 0x65, 0x78,
+	0x12, 0x33, 0x0a, 0x11, 0x65, 0x78, 0x65, 0x63, 0x75, 0x74, 0x69, 0x6f, 0x6e, 0x5f, 0x61, 0x64,
+	0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0c, 0x42, 0x06, 0x8a, 0xb5, 0x18,
+	0x02, 0x32, 0x30, 0x52, 0x10, 0x65, 0x78, 0x65, 0x63, 0x75, 0x74, 0x69, 0x6f, 0x6e, 0x41, 0x64,
+	0x64, 0x72, 0x65, 0x73, 0x73, 0x12, 0x16, 0x0a, 0x06, 0x61, 0x6d, 0x6f, 0x75, 0x6e, 0x74, 0x18,
+	0x04, 0x20, 0x01, 0x28, 0x04, 0x52, 0x06, 0x61, 0x6d, 0x6f, 0x75, 0x6e, 0x74, 0x42, 0x96, 0x01,
+	0x0a, 0x16, 0x6f, 0x72, 0x67, 0x2e, 0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65,
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+	0x5a, 0x3a, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x70, 0x72, 0x79,
+	0x73, 0x6d, 0x61, 0x74, 0x69, 0x63, 0x6c, 0x61, 0x62, 0x73, 0x2f, 0x70, 0x72, 0x79, 0x73, 0x6d,
+	0x2f, 0x76, 0x33, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x65, 0x6e, 0x67, 0x69, 0x6e, 0x65,
+	0x2f, 0x76, 0x31, 0x3b, 0x65, 0x6e, 0x67, 0x69, 0x6e, 0x65, 0x76, 0x31, 0xaa, 0x02, 0x12, 0x45,
+	0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x45, 0x6e, 0x67, 0x69, 0x6e, 0x65, 0x2e, 0x56,
+	0x31, 0xca, 0x02, 0x12, 0x45, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x5c, 0x45, 0x6e, 0x67,
+	0x69, 0x6e, 0x65, 0x5c, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/proto/engine/v1/execution_engine.proto b/proto/engine/v1/execution_engine.proto
index 7a745a1f0d40..473722747c3c 100644
--- a/proto/engine/v1/execution_engine.proto
+++ b/proto/engine/v1/execution_engine.proto
@@ -132,10 +132,13 @@ message Withdrawal {
 	// Withdrawal index for accounting purposes
 	uint64 withdrawal_index = 1;
 
+	// Validator index for the withdrawal
+	uint64 validator_index = 2 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v3/consensus-types/primitives.ValidatorIndex"];
+
 	// The execution address receiving the funds
-	bytes execution_address = 2 [(ethereum.eth.ext.ssz_size) = "20"];
+	bytes execution_address = 3 [(ethereum.eth.ext.ssz_size) = "20"];
 
 	// The withdrawn amount in Gwei
-	uint64 amount = 3;
+	uint64 amount = 4;
 }
 
diff --git a/proto/engine/v1/generated.ssz.go b/proto/engine/v1/generated.ssz.go
index de0280e8b395..513f068b0b0d 100644
--- a/proto/engine/v1/generated.ssz.go
+++ b/proto/engine/v1/generated.ssz.go
@@ -1,9 +1,10 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: 8ff411ee7233e56f3e3ec85ef6fc9db47b6afae7e56ba24797e67208cdc309c9
+// Hash: 31e013ad8172683b80becdea6758152590fde462f910057764c6505bc7ea8a00
 package enginev1
 
 import (
 	ssz "github.com/prysmaticlabs/fastssz"
+	github_com_prysmaticlabs_prysm_v3_consensus_types_primitives "github.com/prysmaticlabs/prysm/v3/consensus-types/primitives"
 )
 
 // MarshalSSZ ssz marshals the ExecutionPayload object
@@ -486,7 +487,7 @@ func (e *ExecutionPayloadCapella) MarshalSSZTo(buf []byte) (dst []byte, err erro
 
 	// Offset (14) 'Withdrawals'
 	dst = ssz.WriteOffset(dst, offset)
-	offset += len(e.Withdrawals) * 36
+	offset += len(e.Withdrawals) * 44
 
 	// Field (10) 'ExtraData'
 	if size := len(e.ExtraData); size > 32 {
@@ -657,7 +658,7 @@ func (e *ExecutionPayloadCapella) UnmarshalSSZ(buf []byte) error {
 	// Field (14) 'Withdrawals'
 	{
 		buf = tail[o14:]
-		num, err := ssz.DivideInt2(len(buf), 36, 16)
+		num, err := ssz.DivideInt2(len(buf), 44, 16)
 		if err != nil {
 			return err
 		}
@@ -666,7 +667,7 @@ func (e *ExecutionPayloadCapella) UnmarshalSSZ(buf []byte) error {
 			if e.Withdrawals[ii] == nil {
 				e.Withdrawals[ii] = new(Withdrawal)
 			}
-			if err = e.Withdrawals[ii].UnmarshalSSZ(buf[ii*36 : (ii+1)*36]); err != nil {
+			if err = e.Withdrawals[ii].UnmarshalSSZ(buf[ii*44 : (ii+1)*44]); err != nil {
 				return err
 			}
 		}
@@ -688,7 +689,7 @@ func (e *ExecutionPayloadCapella) SizeSSZ() (size int) {
 	}
 
 	// Field (14) 'Withdrawals'
-	size += len(e.Withdrawals) * 36
+	size += len(e.Withdrawals) * 44
 
 	return
 }
@@ -1511,14 +1512,17 @@ func (w *Withdrawal) MarshalSSZTo(buf []byte) (dst []byte, err error) {
 	// Field (0) 'WithdrawalIndex'
 	dst = ssz.MarshalUint64(dst, w.WithdrawalIndex)
 
-	// Field (1) 'ExecutionAddress'
+	// Field (1) 'ValidatorIndex'
+	dst = ssz.MarshalUint64(dst, uint64(w.ValidatorIndex))
+
+	// Field (2) 'ExecutionAddress'
 	if size := len(w.ExecutionAddress); size != 20 {
 		err = ssz.ErrBytesLengthFn("--.ExecutionAddress", size, 20)
 		return
 	}
 	dst = append(dst, w.ExecutionAddress...)
 
-	// Field (2) 'Amount'
+	// Field (3) 'Amount'
 	dst = ssz.MarshalUint64(dst, w.Amount)
 
 	return
@@ -1528,28 +1532,31 @@ func (w *Withdrawal) MarshalSSZTo(buf []byte) (dst []byte, err error) {
 func (w *Withdrawal) UnmarshalSSZ(buf []byte) error {
 	var err error
 	size := uint64(len(buf))
-	if size != 36 {
+	if size != 44 {
 		return ssz.ErrSize
 	}
 
 	// Field (0) 'WithdrawalIndex'
 	w.WithdrawalIndex = ssz.UnmarshallUint64(buf[0:8])
 
-	// Field (1) 'ExecutionAddress'
+	// Field (1) 'ValidatorIndex'
+	w.ValidatorIndex = github_com_prysmaticlabs_prysm_v3_consensus_types_primitives.ValidatorIndex(ssz.UnmarshallUint64(buf[8:16]))
+
+	// Field (2) 'ExecutionAddress'
 	if cap(w.ExecutionAddress) == 0 {
-		w.ExecutionAddress = make([]byte, 0, len(buf[8:28]))
+		w.ExecutionAddress = make([]byte, 0, len(buf[16:36]))
 	}
-	w.ExecutionAddress = append(w.ExecutionAddress, buf[8:28]...)
+	w.ExecutionAddress = append(w.ExecutionAddress, buf[16:36]...)
 
-	// Field (2) 'Amount'
-	w.Amount = ssz.UnmarshallUint64(buf[28:36])
+	// Field (3) 'Amount'
+	w.Amount = ssz.UnmarshallUint64(buf[36:44])
 
 	return err
 }
 
 // SizeSSZ returns the ssz encoded size in bytes for the Withdrawal object
 func (w *Withdrawal) SizeSSZ() (size int) {
-	size = 36
+	size = 44
 	return
 }
 
@@ -1565,14 +1572,17 @@ func (w *Withdrawal) HashTreeRootWith(hh *ssz.Hasher) (err error) {
 	// Field (0) 'WithdrawalIndex'
 	hh.PutUint64(w.WithdrawalIndex)
 
-	// Field (1) 'ExecutionAddress'
+	// Field (1) 'ValidatorIndex'
+	hh.PutUint64(uint64(w.ValidatorIndex))
+
+	// Field (2) 'ExecutionAddress'
 	if size := len(w.ExecutionAddress); size != 20 {
 		err = ssz.ErrBytesLengthFn("--.ExecutionAddress", size, 20)
 		return
 	}
 	hh.PutBytes(w.ExecutionAddress)
 
-	// Field (2) 'Amount'
+	// Field (3) 'Amount'
 	hh.PutUint64(w.Amount)
 
 	if ssz.EnableVectorizedHTR {
diff --git a/proto/prysm/v1alpha1/cloners.go b/proto/prysm/v1alpha1/cloners.go
index 074f9078789c..1c8d23c27db4 100644
--- a/proto/prysm/v1alpha1/cloners.go
+++ b/proto/prysm/v1alpha1/cloners.go
@@ -558,6 +558,7 @@ func CopyWithdrawal(withdrawal *enginev1.Withdrawal) *enginev1.Withdrawal {
 
 	return &enginev1.Withdrawal{
 		WithdrawalIndex:  withdrawal.WithdrawalIndex,
+		ValidatorIndex:   withdrawal.ValidatorIndex,
 		ExecutionAddress: bytesutil.SafeCopyBytes(withdrawal.ExecutionAddress),
 		Amount:           withdrawal.Amount,
 	}
diff --git a/proto/prysm/v1alpha1/cloners_test.go b/proto/prysm/v1alpha1/cloners_test.go
index 3fd8858179cb..ed40f5969ab0 100644
--- a/proto/prysm/v1alpha1/cloners_test.go
+++ b/proto/prysm/v1alpha1/cloners_test.go
@@ -775,6 +775,7 @@ func genWithdrawals(num int) []*enginev1.Withdrawal {
 func genWithdrawal() *enginev1.Withdrawal {
 	return &enginev1.Withdrawal{
 		WithdrawalIndex:  123456,
+		ValidatorIndex:   654321,
 		ExecutionAddress: bytes(20),
 		Amount:           55555,
 	}
diff --git a/proto/prysm/v1alpha1/generated.ssz.go b/proto/prysm/v1alpha1/generated.ssz.go
index f12c096d51bf..d2059202f40d 100644
--- a/proto/prysm/v1alpha1/generated.ssz.go
+++ b/proto/prysm/v1alpha1/generated.ssz.go
@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: 1c6f768f80da4249df93fa7adac146024bcebec0eeca716c007888075e03b2b3
+// Hash: 78cb87810a0a9059f8ff1ca454ad851165b447f064b52d2824bb03063938e4c2
 package eth
 
 import (
@@ -10244,7 +10244,7 @@ func (b *BeaconStateCapella) MarshalSSZTo(buf []byte) (dst []byte, err error) {
 
 	// Offset (25) 'WithdrawalQueue'
 	dst = ssz.WriteOffset(dst, offset)
-	offset += len(b.WithdrawalQueue) * 36
+	offset += len(b.WithdrawalQueue) * 44
 
 	// Field (26) 'NextWithdrawalIndex'
 	dst = ssz.MarshalUint64(dst, b.NextWithdrawalIndex)
@@ -10638,7 +10638,7 @@ func (b *BeaconStateCapella) UnmarshalSSZ(buf []byte) error {
 	// Field (25) 'WithdrawalQueue'
 	{
 		buf = tail[o25:]
-		num, err := ssz.DivideInt2(len(buf), 36, 1099511627776)
+		num, err := ssz.DivideInt2(len(buf), 44, 1099511627776)
 		if err != nil {
 			return err
 		}
@@ -10647,7 +10647,7 @@ func (b *BeaconStateCapella) UnmarshalSSZ(buf []byte) error {
 			if b.WithdrawalQueue[ii] == nil {
 				b.WithdrawalQueue[ii] = new(v1.Withdrawal)
 			}
-			if err = b.WithdrawalQueue[ii].UnmarshalSSZ(buf[ii*36 : (ii+1)*36]); err != nil {
+			if err = b.WithdrawalQueue[ii].UnmarshalSSZ(buf[ii*44 : (ii+1)*44]); err != nil {
 				return err
 			}
 		}
@@ -10687,7 +10687,7 @@ func (b *BeaconStateCapella) SizeSSZ() (size int) {
 	size += b.LatestExecutionPayloadHeader.SizeSSZ()
 
 	// Field (25) 'WithdrawalQueue'
-	size += len(b.WithdrawalQueue) * 36
+	size += len(b.WithdrawalQueue) * 44
 
 	return
 }