2021 Cadillac CT4 Steering Parts

This table covers the Coupling boots. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn. Read more

One part is listed for the 2021 Cadillac CT4 — GM GENUINE 85117849.

This table covers the steering knuckles that carry the hub, caliper and ball joints. Read more

GM GENUINE supplies the 6 Knuckle parts for the 2021 Cadillac CT4. GM GENUINE 84702875 carries the "Popular" badge.

Part numbers include GM GENUINE 84702875, GM GENUINE 84702874 and GM GENUINE 84712195, among others listed above.

This table covers the fluids specified for this steering system. Typical signs include discolored fluid, a burnt smell, or a level that keeps dropping. Use only the specification in the notes — the tables group grades because they are not interchangeable. Read more

This group shows a single part: EDELMANN 70694.

This table covers the steering gear assemblies that turn the tie rods. Typical signs include fluid at a torn boot, a growl when you turn, or play that the inner tie rods do not explain. Flush the old power-steering fluid with the rack — grit in the old fluid is the usual cause of a repeat leak. Read more

One part is listed for the 2021 Cadillac CT4 — GM GENUINE 85613260.

This table covers the rubber boots that seal the inner tie-rod joints on the rack. Read more

This group shows a single part: GM GENUINE 22789026.

This table covers the Rack and Pinion Bellow clamps. Read more

One part is listed for the 2021 Cadillac CT4 — GM GENUINE 11612027.

This table covers the steering columns. Read more

GM GENUINE supplies both parts for the 2021 Cadillac CT4.

Listed part numbers: GM GENUINE 84961920 and GM GENUINE 84961921.

This table covers the Steering Column Lock actuators. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same. Read more

GM GENUINE supplies both parts for the 2021 Cadillac CT4.

Listed part numbers: GM GENUINE 13534627 and GM GENUINE 13543768.

This table covers the Steering Gear bolts. Read more

GM GENUINE supplies both parts for the 2021 Cadillac CT4.

This group includes GM GENUINE 11547494 and GM GENUINE 11589283.

This table covers the Steering Gear nuts. Read more

GM GENUINE supplies both parts for the 2021 Cadillac CT4.

Listed part numbers: GM GENUINE 11546366 and GM GENUINE 11516078.

This table covers the Steering shafts. Read more

GM GENUINE supplies the 3 Steering Shaft parts for the 2021 Cadillac CT4.

Part numbers include GM GENUINE 84413032, GM GENUINE 84444691 and GM GENUINE 85110708.

This table covers the inner and outer tie-rod ends that steer each front knuckle. Typical signs include play on center, a feathered front tire, or a boot that has split and packed with grit. Replace inner and outer ends together on a high-mileage axle, then get an alignment. Read more

9 Tie Rod End parts for the 2021 Cadillac CT4 come from 5 brands — DORMAN, GM GENUINE, MEVOTECH and 2 other brands. The "Popular" part is GM GENUINE 87827847.

In the Daily Driver grade, GM GENUINE, DELPHI, MEVOTECH and 1 other brand supply 5 parts: grouped for everyday commuting duty. A representative part number is GM GENUINE 87827847.

The Economy section lists 4 options from DORMAN and MEVOTECH — the catalog's value-priced group. DORMAN 544644 is listed in this group.

Listed part numbers: GM GENUINE 87827847, GM GENUINE 87827846 and DELPHI TA6489, plus the other parts above.

This table covers the Tie Rod nuts. Read more

This group shows a single part: GM GENUINE 22789025.