diff --git a/src/bulk/common.ts b/src/bulk/common.ts
index 70df6544504..e9784b6ca7c 100644
--- a/src/bulk/common.ts
+++ b/src/bulk/common.ts
@@ -285,7 +285,7 @@ export class BulkWriteResult {
         if (i === 0) errmsg = errmsg + ' and ';
       }
 
-      return new WriteConcernError({ errmsg, code: MONGODB_ERROR_CODES.WriteConcernFailed });
+      return new WriteConcernError({ errmsg, code: MONGODB_ERROR_CODES.WriteConcernTimeout });
     }
   }
 
diff --git a/src/error.ts b/src/error.ts
index 2dc382ed4c2..31ae5c9c4d8 100644
--- a/src/error.ts
+++ b/src/error.ts
@@ -56,7 +56,8 @@ export const MONGODB_ERROR_CODES = Object.freeze({
   FailedToSatisfyReadPreference: 133,
   CursorNotFound: 43,
   LegacyNotPrimary: 10058,
-  WriteConcernFailed: 64,
+  // WriteConcernTimeout is WriteConcernFailed on pre-8.1 servers
+  WriteConcernTimeout: 64,
   NamespaceNotFound: 26,
   IllegalOperation: 20,
   MaxTimeMSExpired: 50,
diff --git a/test/spec/retryable-writes/unified/insertOne-serverErrors.json b/test/spec/retryable-writes/unified/insertOne-serverErrors.json
index f404adcaf42..8edafb7029b 100644
--- a/test/spec/retryable-writes/unified/insertOne-serverErrors.json
+++ b/test/spec/retryable-writes/unified/insertOne-serverErrors.json
@@ -739,7 +739,7 @@
       ]
     },
     {
-      "description": "InsertOne fails after WriteConcernError WriteConcernFailed",
+      "description": "InsertOne fails after WriteConcernError WriteConcernTimeout",
       "operations": [
         {
           "name": "failPoint",
@@ -757,7 +757,6 @@
                 ],
                 "writeConcernError": {
                   "code": 64,
-                  "codeName": "WriteConcernFailed",
                   "errmsg": "waiting for replication timed out",
                   "errInfo": {
                     "wtimeout": true
diff --git a/test/spec/retryable-writes/unified/insertOne-serverErrors.yml b/test/spec/retryable-writes/unified/insertOne-serverErrors.yml
index 95fa71ec790..6fd43365d8e 100644
--- a/test/spec/retryable-writes/unified/insertOne-serverErrors.yml
+++ b/test/spec/retryable-writes/unified/insertOne-serverErrors.yml
@@ -339,7 +339,7 @@ tests:
           - { _id: 2, x: 22 }
           - { _id: 3, x: 33 } # The write was still applied.
   -
-    description: 'InsertOne fails after WriteConcernError WriteConcernFailed'
+    description: 'InsertOne fails after WriteConcernError WriteConcernTimeout'
     operations:
       -
         name: failPoint
@@ -353,7 +353,6 @@ tests:
               failCommands: [ insert ]
               writeConcernError:
                 code: 64
-                codeName: WriteConcernFailed
                 errmsg: 'waiting for replication timed out'
                 errInfo:
                   wtimeout: true
diff --git a/test/spec/transactions-convenient-api/unified/commit-writeconcernerror.json b/test/spec/transactions-convenient-api/unified/commit-writeconcernerror.json
index a6f6e6bd7fa..568f7ede425 100644
--- a/test/spec/transactions-convenient-api/unified/commit-writeconcernerror.json
+++ b/test/spec/transactions-convenient-api/unified/commit-writeconcernerror.json
@@ -56,7 +56,7 @@
   ],
   "tests": [
     {
-      "description": "commitTransaction is retried after WriteConcernFailed timeout error",
+      "description": "commitTransaction is retried after WriteConcernTimeout timeout error",
       "operations": [
         {
           "name": "failPoint",
@@ -74,7 +74,6 @@
                 ],
                 "writeConcernError": {
                   "code": 64,
-                  "codeName": "WriteConcernFailed",
                   "errmsg": "waiting for replication timed out",
                   "errInfo": {
                     "wtimeout": true
@@ -236,7 +235,7 @@
       ]
     },
     {
-      "description": "commitTransaction is retried after WriteConcernFailed non-timeout error",
+      "description": "commitTransaction is retried after WriteConcernTimeout non-timeout error",
       "operations": [
         {
           "name": "failPoint",
@@ -254,7 +253,6 @@
                 ],
                 "writeConcernError": {
                   "code": 64,
-                  "codeName": "WriteConcernFailed",
                   "errmsg": "multiple errors reported"
                 }
               }
diff --git a/test/spec/transactions-convenient-api/unified/commit-writeconcernerror.yml b/test/spec/transactions-convenient-api/unified/commit-writeconcernerror.yml
index 44877fa008f..408f57fde1a 100644
--- a/test/spec/transactions-convenient-api/unified/commit-writeconcernerror.yml
+++ b/test/spec/transactions-convenient-api/unified/commit-writeconcernerror.yml
@@ -32,7 +32,7 @@ initialData:
 
 tests:
   -
-    description: commitTransaction is retried after WriteConcernFailed timeout error
+    description: commitTransaction is retried after WriteConcernTimeout timeout error
     operations:
       - name: failPoint
         object: testRunner
@@ -47,7 +47,6 @@ tests:
               # with writeConcernError (see: SERVER-39292)
               writeConcernError:
                 code: 64
-                codeName: WriteConcernFailed
                 errmsg: "waiting for replication timed out"
                 errInfo: { wtimeout: true }
       - &operation
@@ -126,10 +125,10 @@ tests:
           - { _id: 1 }
   -
     # This test configures the fail point to return an error with the
-    # WriteConcernFailed code but without errInfo that would identify it as a
+    # WriteConcernTimeout code but without errInfo that would identify it as a
     # wtimeout error. This tests that drivers do not assume that all
-    # WriteConcernFailed errors are due to a replication timeout.
-    description: commitTransaction is retried after WriteConcernFailed non-timeout error
+    # WriteConcernTimeout errors are due to a replication timeout.
+    description: commitTransaction is retried after WriteConcernTimeout non-timeout error
     operations:
       - name: failPoint
         object: testRunner
@@ -144,7 +143,6 @@ tests:
               # with writeConcernError (see: SERVER-39292)
               writeConcernError:
                 code: 64
-                codeName: WriteConcernFailed
                 errmsg: "multiple errors reported"
       - *operation
     expectEvents: *expectEvents_with_retries
diff --git a/test/spec/transactions/unified/error-labels.json b/test/spec/transactions/unified/error-labels.json
index be8df10ed34..74ed750b070 100644
--- a/test/spec/transactions/unified/error-labels.json
+++ b/test/spec/transactions/unified/error-labels.json
@@ -1176,7 +1176,7 @@
       ]
     },
     {
-      "description": "add UnknownTransactionCommitResult label to writeConcernError WriteConcernFailed",
+      "description": "add UnknownTransactionCommitResult label to writeConcernError WriteConcernTimeout",
       "operations": [
         {
           "object": "testRunner",
@@ -1338,7 +1338,7 @@
       ]
     },
     {
-      "description": "add UnknownTransactionCommitResult label to writeConcernError WriteConcernFailed with wtimeout",
+      "description": "add UnknownTransactionCommitResult label to writeConcernError WriteConcernTimeout with wtimeout",
       "operations": [
         {
           "object": "testRunner",
@@ -1356,7 +1356,6 @@
                 ],
                 "writeConcernError": {
                   "code": 64,
-                  "codeName": "WriteConcernFailed",
                   "errmsg": "waiting for replication timed out",
                   "errInfo": {
                     "wtimeout": true
diff --git a/test/spec/transactions/unified/error-labels.yml b/test/spec/transactions/unified/error-labels.yml
index 6eb8d7d75ef..64e241d55d0 100644
--- a/test/spec/transactions/unified/error-labels.yml
+++ b/test/spec/transactions/unified/error-labels.yml
@@ -688,7 +688,7 @@ tests:
         databaseName: *database_name
         documents: []
   -
-    description: 'add UnknownTransactionCommitResult label to writeConcernError WriteConcernFailed'
+    description: 'add UnknownTransactionCommitResult label to writeConcernError WriteConcernTimeout'
     operations:
       -
         object: testRunner
@@ -702,7 +702,7 @@ tests:
               failCommands:
                 - commitTransaction
               writeConcernError:
-                code: 64 # WriteConcernFailed without wtimeout
+                code: 64 # WriteConcernTimeout without wtimeout
                 errmsg: 'multiple errors reported'
       -
         object: *session0
@@ -782,7 +782,7 @@ tests:
         documents:
           - { _id: 1 }
   -
-    description: 'add UnknownTransactionCommitResult label to writeConcernError WriteConcernFailed with wtimeout'
+    description: 'add UnknownTransactionCommitResult label to writeConcernError WriteConcernTimeout with wtimeout'
     operations:
       -
         object: testRunner
@@ -797,7 +797,6 @@ tests:
                 - commitTransaction
               writeConcernError:
                 code: 64
-                codeName: WriteConcernFailed
                 errmsg: 'waiting for replication timed out'
                 errInfo:
                   wtimeout: true