The 2021 Cadillac CT4 has 127 suspension parts with verified fitment on this page — 23 part types and 12 brands, covering both the 2.0L L4 Turbocharged and the 2.7L L4 Turbocharged. Each part includes a manufacturer part number and application notes.
The suspension system on the 2021 Cadillac CT4 controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links. The largest groups are Control Arm (38 parts), Sway Bar Link (36 parts) and Alignment Bolt / Camber Plate (9 parts). The other 20 part types cover the remaining 44 parts.
The 2021 Cadillac CT4 was sold with both the 2.0L L4 Turbocharged and the 2.7L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
12 brands supply suspension parts for the 2021 Cadillac CT4, led by GM GENUINE (58 parts), MEVOTECH (21 parts) and DORMAN (13 parts), plus 9 more brands. Quality grades include Daily Driver and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Cadillac CT4. 19 parts have it, including MOOG K90476 (Alignment Bolt / Camber Plate) and GM GENUINE 84190337 (Coil Spring Seat / Insulator). Each part number opens a page with every vehicle that part fits.
Alignment Bolt / Camber Plate
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOOG Popular Fits: 2.7L L4 Turbocharged | K90476 | 🇺🇸 US 🇨🇦 CA | KitCam Bolt | View on Amazon |
| DELPHI Fits: 2.7L L4 Turbocharged | TAL10017 | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | MS500330 | 🇺🇸 US 🇨🇦 CA | SupremeKit | View on Amazon |
| MOOG Fits: 2.7L L4 Turbocharged | K100024 | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 2.7L L4 Turbocharged | SK100024 | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 533119 | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
| FVP Fits: 2.7L L4 Turbocharged | AK90409 | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
| QUICK STEER Fits: 2.7L L4 Turbocharged | K90476 | 🇺🇸 US 🇨🇦 CA | Adapter Plate Not Included | View on Amazon |
| SKP Fits: 2.7L L4 Turbocharged | SK90476 | 🇺🇸 US 🇨🇦 CA | KitAdapter Plate Not Included | View on Amazon |
This table covers the cam bolts and plates used to set camber at the knuckle. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.
9 Alignment Bolt / Camber Plate parts are listed for the 2021 Cadillac CT4, from MOOG, SKP, DELPHI and 4 other brands. MOOG K90476 carries the "Popular" badge.
The Daily Driver section lists 4 options from MOOG, DELPHI and MEVOTECH — grouped for everyday commuting duty. MOOG K90476 is listed in this group.
In the Economy grade, SKP, DORMAN, FVP and 1 other brand supply 5 parts: the catalog's value-priced group. A representative part number is SKP SK100024.
This group includes MOOG K90476, DELPHI TAL10017 and MEVOTECH MS500330 and the remaining parts above.
Ball Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 2.7L L4 Turbocharged | 540104 | 🇺🇸 US 🇨🇦 CA | Front LowerAWD | View on Amazon |
This table covers the ball joints that articulate each control arm at the knuckle.
One part is listed for the 2021 Cadillac CT4 — DORMAN 540104.
Ball Joint Nut / Washer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11516382 | 🇺🇸 US 🇨🇦 CA | Front LowerM14X2X15,28 | View on Amazon |
This table covers the Ball Joint Nut washers.
One part is listed for the 2021 Cadillac CT4 — GM GENUINE 11516382.
Bump Stop
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84630229 | 🇺🇸 US 🇨🇦 CA | FrontRWD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 23321381 | 🇺🇸 US 🇨🇦 CA | Outside Diameter: 35.11 mm | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84570022 | 🇺🇸 US 🇨🇦 CA | Fits FrontAWD | View on Amazon |
This table covers the bump stops that limit suspension travel.
3 Bump Stop parts for the 2021 Cadillac CT4 come from GM GENUINE.
Part numbers include GM GENUINE 84630229, GM GENUINE 23321381 and GM GENUINE 84570022.
Coil Spring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84789295 | 🇺🇸 US 🇨🇦 CA | Outside Diameter (mm): 94.38 mm | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84789296 | 🇺🇸 US 🇨🇦 CA | Outside Diameter (In): 4.29 In | View on Amazon |
This table covers the coil springs that carry vehicle weight at each corner. Typical signs include a sagging corner, a clunk through the spring, or a broken coil that you can see from the wheel well. Replace springs in axle pairs and inspect the seats and isolators while the spring is out.
2 Coil Spring parts for the 2021 Cadillac CT4 come from GM GENUINE.
This group includes GM GENUINE 84789295 and GM GENUINE 84789296.
Coil Spring Seat / Insulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 84190337 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 84570395 | 🇺🇸 US 🇨🇦 CA | InsulatorBlack | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 20767137 | 🇺🇸 US 🇨🇦 CA | RearOrder with 11611841,11611709,11611696,11516382 | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84826535 | 🇺🇸 US 🇨🇦 CA | Front Lower | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84570396 | 🇺🇸 US 🇨🇦 CA | Rear Right LowerOrder with 11611841,11611709,11611696,11516382 | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 42891590 | 🇺🇸 US 🇨🇦 CA | Front Upper | View on Amazon |
This table covers the rubber and polyurethane isolators that seat coil springs. Typical signs include a squeak from the spring pocket, or a spring that has walked off its seat. Replace the isolator whenever the spring is out — a crushed seat will noise a brand-new spring.
GM GENUINE supplies the 6 Coil Spring Seat / Insulator parts for the 2021 Cadillac CT4. GM GENUINE 84190337 carries the "Popular" badge.
This group includes GM GENUINE 84190337, GM GENUINE 84570395 and GM GENUINE 20767137 and the remaining parts above.
Control Arm
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 23462009 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 23462008 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 23462010 | 🇺🇸 US 🇨🇦 CA | Front Left Lower RearwardAWD | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 23462011 | 🇺🇸 US 🇨🇦 CA | Front Right Lower RearwardAWD | View on Amazon |
| MOOG Popular Fits: 2.7L L4 Turbocharged | RK623938 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| MOOG Popular Fits: 2.7L L4 Turbocharged | RK623946 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| DELPHI Fits: 2.7L L4 Turbocharged | TC8382 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball JointIncludes Bushing | View on Amazon |
| DELPHI Fits: 2.7L L4 Turbocharged | TC8407 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| DELPHI Fits: 2.7L L4 Turbocharged | TC7012 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| DELPHI Fits: 2.7L L4 Turbocharged | TC7013 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball JointIncludes Bushing | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 526241 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 526242 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 528356 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 526243 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 526244 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 526660 | 🇺🇸 US 🇨🇦 CA | Front Right Lower ForwardAWD | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 528355 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 526659 | 🇺🇸 US 🇨🇦 CA | Front Left Lower ForwardAWD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84965151 | 🇺🇸 US 🇨🇦 CA | Rear LowerTrailing Arm | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84826401 | 🇺🇸 US 🇨🇦 CA | Rear Upper | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 20755795 | 🇺🇸 US 🇨🇦 CA | RearCamber/Toe Lateral Link | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84918036 | 🇺🇸 US 🇨🇦 CA | Front Right LowerAWD | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | CMS501395 | 🇺🇸 US 🇨🇦 CA | Supreme | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | CMS501296 | 🇺🇸 US 🇨🇦 CA | SupremeComplete Arm with Ball Joint | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | CMS501297 | 🇺🇸 US 🇨🇦 CA | SupremeComplete Arm with Ball Joint | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | MS501277 | 🇺🇸 US 🇨🇦 CA | SupremeComplete Arm with Ball Joint | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | MS501278 | 🇺🇸 US 🇨🇦 CA | SupremeComplete Arm with Ball Joint | View on Amazon |
| MOOG Fits: 2.7L L4 Turbocharged | RK623937 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| MOOG Fits: 2.7L L4 Turbocharged | RK623945 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| SUSPENSIA Fits: 2.7L L4 Turbocharged | X06CJ1208 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
| SUSPENSIA Fits: 2.7L L4 Turbocharged | X06CJ1214 | 🇺🇸 US 🇨🇦 CA | Complete Arm with Ball Joint | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS501395 | 🇺🇸 US 🇨🇦 CA | Original Grade | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS501278 | 🇺🇸 US 🇨🇦 CA | Original GradeComplete Arm with Ball Joint | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS501296 | 🇺🇸 US 🇨🇦 CA | Original GradeComplete Arm with Ball Joint | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS501297 | 🇺🇸 US 🇨🇦 CA | Original GradeComplete Arm with Ball Joint | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS501277 | 🇺🇸 US 🇨🇦 CA | Original GradeComplete Arm with Ball Joint | View on Amazon |
| SKP Fits: 2.7L L4 Turbocharged | SKCMS501296 | 🇺🇸 US 🇨🇦 CA | Includes Hardware | View on Amazon |
| SKP Fits: 2.7L L4 Turbocharged | SKCMS501297 | 🇺🇸 US 🇨🇦 CA | Includes Hardware | View on Amazon |
This table covers the control arms that locate each hub relative to the chassis. Typical signs include clunks over bumps, a wander on the highway, or inner-edge tire wear. Get an alignment after any control-arm work, and inspect the ball joint and bushings that came with the arm.
38 Control Arm parts are listed for the 2021 Cadillac CT4, from MEVOTECH, GM GENUINE, DORMAN and 4 other brands. GM GENUINE 23462009 carries the "Popular" badge. They are grouped as Daily Driver and Economy, with Daily Driver the largest group at 31 parts from GM GENUINE, DORMAN, MEVOTECH and 3 other brands.
Control Arm Anchor Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 11547215 | 🇺🇸 US 🇨🇦 CA | Rear Lower InnerM14X2X95 | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11610915 | 🇺🇸 US 🇨🇦 CA | Front LowerSINGLE USE | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11611841 | 🇺🇸 US 🇨🇦 CA | Includes Special Washer | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11610908 | 🇺🇸 US 🇨🇦 CA | Rear Upper OuterM12X1.75X70,66THD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11610909 | 🇺🇸 US 🇨🇦 CA | Rear Upper InnerSINGLE USE | View on Amazon |
This table covers the bolts that anchor a control arm to the chassis or subframe.
GM GENUINE supplies the 5 Control Arm Anchor Bolt parts for the 2021 Cadillac CT4. GM GENUINE 11547215 carries the "Popular" badge.
Listed part numbers: GM GENUINE 11547215, GM GENUINE 11610915 and GM GENUINE 11611841, plus the other parts above.
Control Arm Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 20755812 | 🇺🇸 US 🇨🇦 CA | Rear Lower At Crossmember | View on Amazon |
This table covers the bushings pressed into each control arm. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
One part is listed for the 2021 Cadillac CT4 — GM GENUINE 20755812.
Control Arm Nut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11516382 | 🇺🇸 US 🇨🇦 CA | Single UseM14X2X15,28 | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11611709 | 🇺🇸 US 🇨🇦 CA | 14X2,OD 27.5,17.7 Thick | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11516078 | 🇺🇸 US 🇨🇦 CA | Fits Front Lower ForwardM12X1.75X14 | View on Amazon |
This table covers the Control Arm nuts.
3 Control Arm Nut parts for the 2021 Cadillac CT4 come from GM GENUINE.
This group includes GM GENUINE 11516382, GM GENUINE 11611709 and GM GENUINE 11516078.
Control Arm Washer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11611277 | 🇺🇸 US 🇨🇦 CA | RearCam | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11547262 | 🇺🇸 US 🇨🇦 CA | M14 | View on Amazon |
This table covers the Control Arm washers.
GM GENUINE supplies both parts for the 2021 Cadillac CT4.
This group includes GM GENUINE 11611277 and GM GENUINE 11547262.
Electronic Suspension Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84956234 | 🇺🇸 US 🇨🇦 CA | V Modelwithout INTEGRATED CIRCUIT | View on Amazon |
This table covers the Electronic Suspension control modules.
This group shows a single part: GM GENUINE 84956234.
Shock / Strut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 84807824 | 🇺🇸 US 🇨🇦 CA | Front RightRWD | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 84807823 | 🇺🇸 US 🇨🇦 CA | Front LeftRWD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84767548 | 🇺🇸 US 🇨🇦 CA | Rear LeftAWD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84767546 | 🇺🇸 US 🇨🇦 CA | Rear LeftRWD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84767549 | 🇺🇸 US 🇨🇦 CA | Rear RightAWD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 85650688 | 🇺🇸 US 🇨🇦 CA | Front RightRWD | View on Amazon |
This table covers the shocks and struts that damp wheel motion. Typical signs include a nose that keeps bouncing, cupped tires, or fluid weeping down the body. Replace shocks or struts in axle pairs and renew the mounts if they are torn or collapsed.
GM GENUINE supplies the 6 Shock / Strut parts for the 2021 Cadillac CT4. GM GENUINE 84807824 carries the "Popular" badge.
Part numbers include GM GENUINE 84807824, GM GENUINE 84807823 and GM GENUINE 84767548, among others listed above.
Shock / Strut Bellow
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84576881 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
This table covers the Shock / Strut bellows.
This group shows a single part: GM GENUINE 84576881.
Shock / Strut Mount
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84190339 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEA / MARMON RIDE CONTROL Fits: 2.7L L4 Turbocharged | 4714200 | 🇺🇸 US 🇨🇦 CA | Includes BearingMaterial: Aluminum, Steel, Rubber | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: 2.7L L4 Turbocharged | 4714272 | 🇺🇸 US 🇨🇦 CA | Includes Bearing | View on Amazon |
This table covers the upper mounts (and bearings) a strut bolts through at the tower. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
3 Shock / Strut Mount parts for the 2021 Cadillac CT4 come from 2 brands — DEA / MARMON RIDE CONTROL and GM GENUINE.
Daily Driver: 1 part, from GM GENUINE. A representative part number is GM GENUINE 84190339.
The Economy section: 2 options from DEA / MARMON RIDE CONTROL. DEA / MARMON RIDE CONTROL 4714200 is listed in this group.
This group includes GM GENUINE 84190339, DEA / MARMON RIDE CONTROL 4714200 and DEA / MARMON RIDE CONTROL 4714272.
Shock / Strut Mount Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11609598 | 🇺🇸 US 🇨🇦 CA | RearSINGLE USE | View on Amazon |
This table covers the Shock / Strut Mount bolts.
One part is listed for the 2021 Cadillac CT4 — GM GENUINE 11609598.
Shock / Strut Nut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11517996 | 🇺🇸 US 🇨🇦 CA | RearM10X1.5X11 | View on Amazon |
This table covers the Shock / Strut nuts.
This group shows a single part: GM GENUINE 11517996.
Strut Mount Washer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 22784576 | 🇺🇸 US 🇨🇦 CA | Front Upper | View on Amazon |
This table covers the Strut Mount washers.
One part is listed for the 2021 Cadillac CT4 — GM GENUINE 22784576.
Strut Rod Lock Nut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11516078 | 🇺🇸 US 🇨🇦 CA | FrontM12X1.75X14 | View on Amazon |
This table covers the Strut Rod Lock nuts.
One part is listed for the 2021 Cadillac CT4 — GM GENUINE 11516078.
Subframe Mount Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11611263 | 🇺🇸 US 🇨🇦 CA | FrontAWD | View on Amazon |
This table covers the Subframe Mount bolts.
One part is listed for the 2021 Cadillac CT4 — GM GENUINE 11611263.
Sway Bar Bracket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 20936092 | 🇺🇸 US 🇨🇦 CA | Fits FrontRWD | View on Amazon |
This table covers the brackets that mount the Sway Bar. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners.
One part is listed for the 2021 Cadillac CT4 — GM GENUINE 20936092.
Sway Bar Link
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 84978592 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 20887086 | 🇺🇸 US 🇨🇦 CA | Front LeftAWD | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 20887087 | 🇺🇸 US 🇨🇦 CA | Front RightAWD | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 84962143 | 🇺🇸 US 🇨🇦 CA | Bolt Thread Diameter (In): 0.472440945 In | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 20761141 | 🇺🇸 US 🇨🇦 CA | Front LeftRWD | View on Amazon |
| GM GENUINE Popular Fits: 2.7L L4 Turbocharged | 84962142 | 🇺🇸 US 🇨🇦 CA | Bolt Thread Diameter (In): 0.472440945 In | View on Amazon |
| DELPHI Fits: 2.7L L4 Turbocharged | TC7649 | 🇺🇸 US 🇨🇦 CA | Front RightRWD | View on Amazon |
| DELPHI Fits: 2.7L L4 Turbocharged | TC6433 | 🇺🇸 US 🇨🇦 CA | Front LeftRWD | View on Amazon |
| DELPHI Fits: 2.7L L4 Turbocharged | TC7650 | 🇺🇸 US 🇨🇦 CA | Front RightAWD | View on Amazon |
| DELPHI Fits: 2.7L L4 Turbocharged | TC6434 | 🇺🇸 US 🇨🇦 CA | Front LeftAWD | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 542749 | 🇺🇸 US 🇨🇦 CA | Front LeftRWD | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 542774 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| DORMAN Fits: 2.7L L4 Turbocharged | 542750 | 🇺🇸 US 🇨🇦 CA | Front RightRWD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84138808 | 🇺🇸 US 🇨🇦 CA | Front RightAWD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 84138807 | 🇺🇸 US 🇨🇦 CA | Front LeftAWD | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 20761142 | 🇺🇸 US 🇨🇦 CA | Front RightRWD | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | MS508176 | 🇺🇸 US 🇨🇦 CA | SupremeGreaseable | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | MS508182 | 🇺🇸 US 🇨🇦 CA | SupremeGreaseable | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | MS508183 | 🇺🇸 US 🇨🇦 CA | SupremeGreaseable | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | MS508184 | 🇺🇸 US 🇨🇦 CA | SupremeGreaseable | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | MS508185 | 🇺🇸 US 🇨🇦 CA | SupremeGreaseable | View on Amazon |
| MOOG Fits: 2.7L L4 Turbocharged | K750672 | 🇺🇸 US 🇨🇦 CA | Design Allows Easier Installation | View on Amazon |
| MOOG Fits: 2.7L L4 Turbocharged | K750673 | 🇺🇸 US 🇨🇦 CA | Design Allows Easier Installation | View on Amazon |
| MOOG Fits: 2.7L L4 Turbocharged | K750680 | 🇺🇸 US 🇨🇦 CA | Design Allows Easier Installation | View on Amazon |
| MOOG Fits: 2.7L L4 Turbocharged | K750681 | 🇺🇸 US 🇨🇦 CA | Design Allows Easier Installation | View on Amazon |
| SUSPENSIA Fits: 2.7L L4 Turbocharged | X06SL0949 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| SUSPENSIA Fits: 2.7L L4 Turbocharged | X06SL0611 | 🇺🇸 US 🇨🇦 CA | Front LeftRWD | View on Amazon |
| SUSPENSIA Fits: 2.7L L4 Turbocharged | X06SL0612 | 🇺🇸 US 🇨🇦 CA | Overall Length: 244.5 mm | View on Amazon |
| SUSPENSIA Fits: 2.7L L4 Turbocharged | X06SL0833 | 🇺🇸 US 🇨🇦 CA | Steel | View on Amazon |
| TRW Fits: 2.7L L4 Turbocharged | JTS1662 | 🇺🇸 US 🇨🇦 CA | Front LeftRWD | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS508176 | 🇺🇸 US 🇨🇦 CA | Original Grade | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS508182 | 🇺🇸 US 🇨🇦 CA | Original Grade | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS508183 | 🇺🇸 US 🇨🇦 CA | Original Grade | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS508184 | 🇺🇸 US 🇨🇦 CA | Original Grade | View on Amazon |
| MEVOTECH Fits: 2.7L L4 Turbocharged | GS508185 | 🇺🇸 US 🇨🇦 CA | Original Grade | View on Amazon |
| ULTRA-POWER Fits: 2.7L L4 Turbocharged | K750681 | 🇺🇸 US 🇨🇦 CA | Front Rightwith Ride and Handling Suspension (FE2) | View on Amazon |
This table covers the links that connect the anti-roll bar to each control arm or strut. Typical signs include a clunk on one wheel over a driveway, or a rattle that goes away when you lean on the bar. Replace links in pairs; a seized stud often takes the bushing with it.
36 Sway Bar Link parts are listed for the 2021 Cadillac CT4, from MEVOTECH, GM GENUINE, DELPHI and 5 other brands. GM GENUINE 84978592 carries the "Popular" badge. They are grouped as Daily Driver and Economy, with Daily Driver the largest group at 30 parts from GM GENUINE, MEVOTECH, DELPHI and 4 other brands.
Sway Bar Link Nut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11548382 | 🇺🇸 US 🇨🇦 CA | FrontM12 X 1.75 | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11517996 | 🇺🇸 US 🇨🇦 CA | RearM10X1.5X11 | View on Amazon |
| GM GENUINE Fits: 2.7L L4 Turbocharged | 11516078 | 🇺🇸 US 🇨🇦 CA | Single UseM12X1.75X14 | View on Amazon |
This table covers the Sway Bar Link nuts.
3 Sway Bar Link Nut parts for the 2021 Cadillac CT4 come from GM GENUINE.
This group includes GM GENUINE 11548382, GM GENUINE 11517996 and GM GENUINE 11516078.
Buying Suspension Parts for a 2021 Cadillac CT4
On this vehicle, the suspension system controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links.
- Match the engine first. Every suspension 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 shocks and struts in axle pairs, renew the sway-bar links with the struts, and get an alignment after any control-arm or tie-rod work.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Control Arm and Sway Bar Link .
Frequently Asked Questions
How many suspension parts fit the 2021 Cadillac CT4?
Our catalog currently lists 127 suspension parts for the 2021 Cadillac CT4 across 23 subcategories and 12 brands, covering both the 2.0L L4 Turbocharged and the 2.7L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do suspension parts differ between 2021 Cadillac CT4 engines?
Yes. Every suspension 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 suspension problems on a 2021 Cadillac CT4?
Common symptoms include clunks over speed bumps, wandering steering, cupped tire wear, or a nose that keeps bouncing after a dip. 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 shocks and struts in axle pairs, renew the sway-bar links with the struts, and get an alignment after any control-arm or tie-rod work.
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 2021 Cadillac CT4 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 2021 Cadillac CT4?
First match the engine — each row shows which engine(s) the part fits. Then worn bushings often mimic bad shocks — inspect before buying, and remember loaded vs unloaded strut assemblies differ in labor by hours. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Cadillac CT4
Suspension Parts for Other Cadillac CT4 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.