The 2018 Cadillac CTS has 73 steering parts with verified fitment on this page — 17 part types and 10 brands, covering all 4 engine options (2.0L L4 Turbocharged, 3.6L V6, 3.6L V6 Turbocharged and 6.2L V8 Supercharged). Each part includes a manufacturer part number and application notes.
On the 2018 Cadillac CTS, the steering system connects driver to road through the rack, pump, tie rods, and column components. Most of the listed parts are Tie Rod End (35 parts), Steering Shaft (6 parts) and Knuckle (5 parts). The other 14 part types cover the remaining 27 parts.
The 2018 Cadillac CTS was sold with 4 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2018 Cadillac CTS steering parts are GM GENUINE (37 parts), MEVOTECH (10 parts) and MOOG (5 parts), plus 7 more brands. Quality grades include Daily Driver and Economy.
8 parts on this 2018 Cadillac CTS page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including GM GENUINE 22739649 (Knuckle) and GM GENUINE 84242638 (Steering Shaft). Click any part number to see every vehicle that part fits.
Coupling Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 23382992 | 🇺🇸 US 🇨🇦 CA | IntermediateAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 23382993 | 🇺🇸 US 🇨🇦 CA | IntermediateRWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 23507870 | 🇺🇸 US 🇨🇦 CA | IntermediateMOUNTING PLATE | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 23507874 | 🇺🇸 US 🇨🇦 CA | InnerF | View on Amazon |
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.
4 Coupling Boot parts for the 2018 Cadillac CTS come from GM GENUINE.
This group includes GM GENUINE 23382992, GM GENUINE 23382993 and GM GENUINE 23507870 and the remaining parts above.
Knuckle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.6L V6 | 22739649 | 🇺🇸 US 🇨🇦 CA | Includes Ball Joint | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 22739647 | 🇺🇸 US 🇨🇦 CA | Front LeftRWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 22739648 | 🇺🇸 US 🇨🇦 CA | Front RightRWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 22739650 | 🇺🇸 US 🇨🇦 CA | Front RightAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 85129361 | 🇺🇸 US 🇨🇦 CA | Rear Left | View on Amazon |
This table covers the steering knuckles that carry the hub, caliper and ball joints.
5 Knuckle parts for the 2018 Cadillac CTS come from GM GENUINE. The "Popular" part is GM GENUINE 22739649.
Listed part numbers: GM GENUINE 22739649, GM GENUINE 22739647 and GM GENUINE 22739648, plus the other parts above.
Power Steering Assist Motor / Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 19418801 | 🇺🇸 US 🇨🇦 CA | Sport Suspension (FE3) | View on Amazon |
This table covers the Power Steering Assist Motor modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years.
This group shows a single part: GM GENUINE 19418801.
Power Steering Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Fits: 3.6L V6, 3.6L V6 Turbocharged | 23201 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 QuartSynthetic Power Steering Fluid | View on Amazon |
| LUBEGARD Fits: 3.6L V6, 3.6L V6 Turbocharged | 23205 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 5 GallonSynthetic Power Steering Fluid | View on Amazon |
| LUBEGARD Fits: 3.6L V6, 3.6L V6 Turbocharged | 23232 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Synthetic Power Steering Fluid1 Quart | View on Amazon |
| LUBEGARD Fits: 3.6L V6, 3.6L V6 Turbocharged | 23255 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 55 GallonSynthetic Power Steering Fluid | View on Amazon |
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.
LUBEGARD supplies the 4 Power Steering Fluid parts for the 2018 Cadillac CTS.
Listed part numbers: LUBEGARD 23201, LUBEGARD 23205 and LUBEGARD 23232, plus the other parts above.
Rack and Pinion
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 19436224 | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 19436226 | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
| GM GENUINE Fits: 3.6L V6 Turbocharged | 19436225 | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
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.
3 Rack and Pinion parts for the 2018 Cadillac CTS come from GM GENUINE.
Listed part numbers: GM GENUINE 19436224, GM GENUINE 19436226 and GM GENUINE 19436225.
Rack and Pinion Bellow
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 22789026 | 🇺🇸 US 🇨🇦 CA | Ride and Handling Suspension Code (FE2), Sport Suspension (FE3) | View on Amazon |
This table covers the rubber boots that seal the inner tie-rod joints on the rack.
One part is listed for the 2018 Cadillac CTS — GM GENUINE 22789026.
Rack and Pinion Bellow Clamp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 11612027 | 🇺🇸 US 🇨🇦 CA | Steel | View on Amazon |
This table covers the Rack and Pinion Bellow clamps.
This group shows a single part: GM GENUINE 11612027.
Steering Column
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 19418831 | 🇺🇸 US 🇨🇦 CA | Power Retractable Tilt Steering Column (N38)Exc. Steering Column Lock Controls (ULS) | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 85118028 | 🇺🇸 US 🇨🇦 CA | Supplemental Restraint System Compliant: No | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 85118029 | 🇺🇸 US 🇨🇦 CA | Supplemental Restraint System Compliant: No | View on Amazon |
This table covers the steering columns.
3 Steering Column parts for the 2018 Cadillac CTS come from GM GENUINE.
This group includes GM GENUINE 19418831, GM GENUINE 85118028 and GM GENUINE 85118029.
Steering Column Bolt / Screw
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 11611603 | 🇺🇸 US 🇨🇦 CA | Power Retractable Tilt Steering Column (N38)M7X1X15 | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 11611601 | 🇺🇸 US 🇨🇦 CA | Screw-Pan7 Thread | View on Amazon |
This table covers the Steering Column Bolt screws. Typical signs include a rounded head, a seeping bleeder, or a fastener that will not hold torque. Do not force a new screw into a stripped hole — repair the thread first.
2 Steering Column Bolt / Screw parts for the 2018 Cadillac CTS come from GM GENUINE.
Listed part numbers: GM GENUINE 11611603 and GM GENUINE 11611601.
Steering Column Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 22935089 | 🇺🇸 US 🇨🇦 CA | Power Retractable Tilt Steering Column (N38) | View on Amazon |
This table covers the Steering Column control modules.
One part is listed for the 2018 Cadillac CTS — GM GENUINE 22935089.
Steering Column Switch Housing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 22765868 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Steering Column Switch housings.
One part is listed for the 2018 Cadillac CTS — GM GENUINE 22765868.
Steering Gear Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 11589283 | 🇺🇸 US 🇨🇦 CA | AWDM12X1.75X126 | View on Amazon |
This table covers the Steering Gear bolts.
This group shows a single part: GM GENUINE 11589283.
Steering Gear Nut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 11546366 | 🇺🇸 US 🇨🇦 CA | RWDM10X1.5 | View on Amazon |
This table covers the Steering Gear nuts.
This group shows a single part: GM GENUINE 11546366.
Steering Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.6L V6 | 84242638 | 🇺🇸 US 🇨🇦 CA | IntermediateAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 20903239 | 🇺🇸 US 🇨🇦 CA | LowerAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 84242640 | 🇺🇸 US 🇨🇦 CA | IntermediateRWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 84246535 | 🇺🇸 US 🇨🇦 CA | Upper IntermediateAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 84246537 | 🇺🇸 US 🇨🇦 CA | Upper IntermediateRWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 Turbocharged | 84242639 | 🇺🇸 US 🇨🇦 CA | Intermediate | View on Amazon |
This table covers the Steering shafts.
6 Steering Shaft parts for the 2018 Cadillac CTS come from GM GENUINE. The "Popular" part is GM GENUINE 84242638.
This group includes GM GENUINE 84242638, GM GENUINE 20903239 and GM GENUINE 84242640 and the remaining parts above.
Steering Wheel Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 13589991 | 🇺🇸 US 🇨🇦 CA | Angle Sensor | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 13513905 | 🇺🇸 US 🇨🇦 CA | Angle Sensor | View on Amazon |
| WELLS Fits: 3.6L V6, 3.6L V6 Turbocharged | 5S13867 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: RectangularAngle Sensor | View on Amazon |
This table covers the Steering Wheel position sensors. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
3 Steering Wheel Position Sensor parts for the 2018 Cadillac CTS come from 2 brands — GM GENUINE and WELLS.
Listed part numbers: GM GENUINE 13589991, GM GENUINE 13513905 and WELLS 5S13867.
Tie Rod End
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.6L V6, 3.6L V6 Turbocharged | 87827847 | 🇺🇸 US 🇨🇦 CA | End 1 Thread Direction: Clockwise (Right) | View on Amazon |
| GM GENUINE Popular Fits: 3.6L V6, 3.6L V6 Turbocharged | 87827846 | 🇺🇸 US 🇨🇦 CA | End 1 Thread Direction: Clockwise (Right) | View on Amazon |
| MEVOTECH Popular Fits: 3.6L V6, 3.6L V6 Turbocharged | MS50658 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | SupremeGreaseable | View on Amazon |
| MEVOTECH Popular Fits: 3.6L V6, 3.6L V6 Turbocharged | MS50659 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | SupremeGreaseable | View on Amazon |
| MOOG Popular Fits: 3.6L V6, 3.6L V6 Turbocharged | ES801231 | 🇺🇸 US 🇨🇦 CA | Front Left OuterRWD | View on Amazon |
| SUSPENSIA Popular Fits: 3.6L V6, 3.6L V6 Turbocharged | X07TE0090 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left OuterRWD | View on Amazon |
| ACDELCO Fits: 3.6L V6, 3.6L V6 Turbocharged | 45A7192 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| DELPHI Fits: 3.6L V6 | TA6483 | 🇺🇸 US 🇨🇦 CA | Right OuterAWD | View on Amazon |
| DELPHI Fits: 3.6L V6, 3.6L V6 Turbocharged | TA6438 | 🇺🇸 US 🇨🇦 CA | Right OuterRWD | View on Amazon |
| DELPHI Fits: 3.6L V6, 3.6L V6 Turbocharged | TA6439 | 🇺🇸 US 🇨🇦 CA | Left OuterRWD | View on Amazon |
| DELPHI Fits: 3.6L V6 | TA6484 | 🇺🇸 US 🇨🇦 CA | Left OuterAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 22888552 | 🇺🇸 US 🇨🇦 CA | Inner | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 22961956 | 🇺🇸 US 🇨🇦 CA | Left OuterAWD | View on Amazon |
| MEVOTECH Fits: 3.6L V6 | MS50656 | 🇺🇸 US 🇨🇦 CA | SupremeGreaseable | View on Amazon |
| MEVOTECH Fits: 3.6L V6 | MS50657 | 🇺🇸 US 🇨🇦 CA | SupremeGreaseable | View on Amazon |
| MEVOTECH Fits: 3.6L V6, 3.6L V6 Turbocharged | MS50784 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | SupremeIncludes Jam Nut | View on Amazon |
| MOOG Fits: 3.6L V6, 3.6L V6 Turbocharged | EV801407 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Inner | View on Amazon |
| MOOG Fits: 3.6L V6, 3.6L V6 Turbocharged | ES801232 | 🇺🇸 US 🇨🇦 CA | Front Right OuterRWD | View on Amazon |
| MOOG Fits: 3.6L V6 | ES801309 | 🇺🇸 US 🇨🇦 CA | Front Right OuterAWD | View on Amazon |
| MOOG Fits: 3.6L V6 | ES801310 | 🇺🇸 US 🇨🇦 CA | Front Left OuterAWD | View on Amazon |
| SUSPENSIA Fits: 3.6L V6, 3.6L V6 Turbocharged | X06TR0380 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Inner | View on Amazon |
| SUSPENSIA Fits: 3.6L V6, 3.6L V6 Turbocharged | X07TE0089 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right OuterRWD | View on Amazon |
| SUSPENSIA Fits: 3.6L V6 | X06TE0814 | 🇺🇸 US 🇨🇦 CA | Front Left OuterAWD | View on Amazon |
| TRW Fits: 3.6L V6 | JTE1593 | 🇺🇸 US 🇨🇦 CA | Left OuterAWD | View on Amazon |
| TRW Fits: 3.6L V6 | JTE1594 | 🇺🇸 US 🇨🇦 CA | Right OuterAWD | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.6L V6, 3.6L V6 Turbocharged | 543853 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Inner | View on Amazon |
| DORMAN Fits: 3.6L V6, 3.6L V6 Turbocharged | 544644 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right OuterRWD | View on Amazon |
| DORMAN Fits: 3.6L V6 | 544641 | 🇺🇸 US 🇨🇦 CA | Front Left OuterAWD | View on Amazon |
| DORMAN Fits: 3.6L V6 | 544642 | 🇺🇸 US 🇨🇦 CA | Front Right OuterAWD | View on Amazon |
| DORMAN Fits: 3.6L V6, 3.6L V6 Turbocharged | 544643 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left OuterRWD | View on Amazon |
| MEVOTECH Fits: 3.6L V6 | GS50656 | 🇺🇸 US 🇨🇦 CA | Original Grade | View on Amazon |
| MEVOTECH Fits: 3.6L V6 | GS50657 | 🇺🇸 US 🇨🇦 CA | Original Grade | View on Amazon |
| MEVOTECH Fits: 3.6L V6, 3.6L V6 Turbocharged | GS50658 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Original Grade | View on Amazon |
| MEVOTECH Fits: 3.6L V6, 3.6L V6 Turbocharged | GS50659 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Original Grade | View on Amazon |
| MEVOTECH Fits: 3.6L V6, 3.6L V6 Turbocharged | GS50784 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Original Grade | View on Amazon |
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.
35 Tie Rod End parts are listed for the 2018 Cadillac CTS, from MEVOTECH, MOOG, DORMAN and 5 other brands. GM GENUINE 87827847 carries the "Popular" badge. Grades run from Daily Driver through Economy; Daily Driver is the most populated section, led by MEVOTECH, MOOG, GM GENUINE and 4 other brands.
Tie Rod Nut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 22789025 | 🇺🇸 US 🇨🇦 CA | InnerJAM NUT | View on Amazon |
This table covers the Tie Rod nuts.
One part is listed for the 2018 Cadillac CTS — GM GENUINE 22789025.
Buying Steering Parts for a 2018 Cadillac CTS
On this vehicle, the steering system connects driver to road through the rack, pump, tie rods, and column components.
- Match the engine first. Every steering part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the inner and outer tie-rod ends together on higher-mileage vehicles, then get an alignment.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Tie Rod End and Steering Shaft .
Frequently Asked Questions
How many steering parts fit the 2018 Cadillac CTS?
Our catalog currently lists 73 steering parts for the 2018 Cadillac CTS across 17 subcategories and 10 brands, covering all 4 engine options (2.0L L4 Turbocharged, 3.6L V6, 3.6L V6 Turbocharged and 6.2L V8 Supercharged). Each part is matched to the engine(s) it fits.
Do steering parts differ between 2018 Cadillac CTS engines?
Yes. Every steering part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of steering problems on a 2018 Cadillac CTS?
Common symptoms include play or looseness on center, a whine when turning, fluid weeping from rack boots, or uneven tire wear on the front axle. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the inner and outer tie-rod ends together on higher-mileage vehicles, then get an alignment.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2018 Cadillac CTS was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2018 Cadillac CTS?
First match the engine — each row shows which engine(s) the part fits. Then flush old power-steering fluid when replacing a pump or rack — grit in the old fluid is the number-one cause of repeat failure. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Cadillac CTS
Steering Parts for Other Cadillac CTS Years
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