2019 Buick Lacrosse Steering Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

This page lists 49 steering parts for the 2019 Buick Lacrosse, across 14 part types, covering both the 2.5L L4 and the 3.6L V6. Every part shows its brand, manufacturer part number and fitment notes.

The steering system on the 2019 Buick Lacrosse connects driver to road through the rack, pump, tie rods, and column components. The largest groups are Tie Rod End (26 parts), Knuckle (6 parts) and Coupling Boot (2 parts). The other 11 part types cover the remaining 15 parts.

Coupling Boot

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23504888
🇺🇸 US 🇨🇦 CA
Inner
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GM GENUINE Fits: 3.6L V6 84389436
🇺🇸 US 🇨🇦 CA
IntermediateOrder with 84389437
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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.

Knuckle

Daily Driver

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.6L V6 23384197
🇺🇸 US 🇨🇦 CA
Front LeftFront Strut (GNA)
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GM GENUINE Popular Fits: 3.6L V6 23384198
🇺🇸 US 🇨🇦 CA
Front RightFront Strut (GNA)
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GM GENUINE Fits: 3.6L V6 42803050
🇺🇸 US 🇨🇦 CA
Rear LeftRear Axle Chassis Equipment (GNQ)
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GM GENUINE Fits: 3.6L V6 42803051
🇺🇸 US 🇨🇦 CA
Rear RightRear Axle Chassis Equipment (GNQ)
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Economy

Brand Part Number Markets Notes Buy
SKP Fits: 3.6L V6 SK697322
🇺🇸 US 🇨🇦 CA
Front Leftwithout Performance Package
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SKP Fits: 3.6L V6 SK697323
🇺🇸 US 🇨🇦 CA
Front Rightwithout Performance Package
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This table covers the steering knuckles that carry the hub, caliper and ball joints.

Power Steering Assist Motor / Module

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 84425940
🇺🇸 US 🇨🇦 CA
Includes Power Steering ModuleFront Strut (GNA)
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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.

Rack and Pinion Bellow

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23449527
🇺🇸 US 🇨🇦 CA
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This table covers the rubber boots that seal the inner tie-rod joints on the rack.

Rack and Pinion Bellow Clamp

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 25901575
🇺🇸 US 🇨🇦 CA
Fits OuterSpringband
Fitment notes — GM GENUINE 25901575
Fits:
OuterSpringbandSmallSingle UseFront Strut (GNA)Diameter 21mm12mm
or:
OuterSpringbandSmallSingle UsePerformance Front Strut/Chassis Equipment (GNB)Diameter 21mm12mm
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GM GENUINE Fits: 3.6L V6 11547783
🇺🇸 US 🇨🇦 CA
InnerHose, Crimp, 68 Open Outside Diameter, 9.5 Wide
Fitment notes — GM GENUINE 11547783
InnerHose, Crimp, 68 Open Outside Diameter, 9.5 WideLargeFront Strut (GNA), Performance Front Strut/Chassis Equipment (GNB)
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This table covers the Rack and Pinion Bellow clamps.

Steering Column

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 85529026
🇺🇸 US 🇨🇦 CA
Supplemental Restraint System Compliant: YES
Fitment notes — GM GENUINE 85529026
Supplemental Restraint System Compliant: YES
Essence or Preferred or Sport Touringwithout ModuleTilt and Telescoping Steering Wheel (N37)with RPO Code AFU9
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GM GENUINE Fits: 3.6L V6 85561701
🇺🇸 US 🇨🇦 CA
Power Retractable Tilt Steering Column (N38)Exc. Electric Steering Column Lock Control (N06)
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This table covers the steering columns.

Steering Column Control Module

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 84625122
🇺🇸 US 🇨🇦 CA
Power Retractable Tilt Steering Column (N38)Exc. Electric Steering Column Lock Control (N06)
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This table covers the Steering Column control modules.

Steering Column Switch Housing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 39088759
🇺🇸 US 🇨🇦 CA
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This table covers the Steering Column Switch housings.

Steering Coupler

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23449521
🇺🇸 US 🇨🇦 CA
Single UseChassis Equipment Front Strut Assembly, Chassis Equipment Front Strut Assembly, Performance
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This table covers the couplers in the steering shaft.

Steering Gear Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 11610468
🇺🇸 US 🇨🇦 CA
FrontM12 X 1.75 X 60 mm
Fitment notes — GM GENUINE 11610468
FrontM12 X 1.75 X 60 mmChassis Equipment Front Strut Assembly
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GM GENUINE Fits: 3.6L V6 11610913
🇺🇸 US 🇨🇦 CA
M12X1.75X95
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This table covers the Steering Gear bolts.

Steering Gear Heat Shield

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23307925
🇺🇸 US 🇨🇦 CA
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This table covers the Steering Gear Heat shields. Typical signs include a bent shield rubbing a rotor, or rust-through that leaves the backing open. A rubbing shield will eat a new rotor. Straighten or replace it before the wheel goes back on.

Steering Shaft

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 42810610
🇺🇸 US 🇨🇦 CA
Mounting Hardware Included: No
Fitment notes — GM GENUINE 42810610
Mounting Hardware Included: No
Upper Intermediate
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GM GENUINE Fits: 3.6L V6 84389437
🇺🇸 US 🇨🇦 CA
IntermediateOrder with 84389436
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This table covers the Steering shafts.

Tie Rod End

Daily Driver

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 3.6L V6 23449526
🇺🇸 US 🇨🇦 CA
InnerFront Strut (GNA)
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MEVOTECH Popular Fits: 3.6L V6 MS50775
🇺🇸 US 🇨🇦 CA
SupremeIncludes Hardware
Fitment notes — MEVOTECH MS50775
SupremeIncludes Hardware
Front Innerwithout Performance Package
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MOOG Popular Fits: 3.6L V6 EV801304
🇺🇸 US 🇨🇦 CA
Front Innerwithout Performance Package
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MOOG Popular Fits: 3.6L V6 ES801316
🇺🇸 US 🇨🇦 CA
Front Left Outerwithout Performance Package
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MOOG Popular Fits: 3.6L V6 ES801317
🇺🇸 US 🇨🇦 CA
Front Right Outerwithout Performance Package
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DELPHI Fits: 3.6L V6 TA3331
🇺🇸 US 🇨🇦 CA
Inner
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DELPHI Fits: 3.6L V6 TA3332
🇺🇸 US 🇨🇦 CA
Left Outer
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DELPHI Fits: 3.6L V6 TA3333
🇺🇸 US 🇨🇦 CA
Right Outer
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GM GENUINE Fits: 3.6L V6 23449523
🇺🇸 US 🇨🇦 CA
Right OuterFront Strut (GNA)
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GM GENUINE Fits: 3.6L V6 23449522
🇺🇸 US 🇨🇦 CA
Left OuterFront Strut (GNA)
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MEVOTECH Fits: 3.6L V6 MS506102
🇺🇸 US 🇨🇦 CA
SupremeGreaseable
Fitment notes — MEVOTECH MS506102
SupremeGreaseableHardware Included
Front Left Outerwithout Performance Package
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MEVOTECH Fits: 3.6L V6 MS506103
🇺🇸 US 🇨🇦 CA
SupremeGreaseable
Fitment notes — MEVOTECH MS506103
SupremeGreaseableHardware Included
Front Right Outerwithout Performance Package
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MEVOTECH Fits: 3.6L V6 MS50785
🇺🇸 US 🇨🇦 CA
Supreme
Fitment notes — MEVOTECH MS50785
Supreme
Front Innerwith Performance Package
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SUSPENSIA Fits: 3.6L V6 X07TR0063
🇺🇸 US 🇨🇦 CA
Front Innerwith High Performance Suspension Strut
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Economy

Brand Part Number Markets Notes Buy
ULTRA-POWER Popular Fits: 3.6L V6 ES801316
🇺🇸 US 🇨🇦 CA
Front LeftOuter
Fitment notes — ULTRA-POWER ES801316
Front LeftOuterExcept Performance Package
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DORMAN Fits: 3.6L V6 543837
🇺🇸 US 🇨🇦 CA
Front Inner
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DORMAN Fits: 3.6L V6 544779
🇺🇸 US 🇨🇦 CA
Front Left Outer
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DORMAN Fits: 3.6L V6 544780
🇺🇸 US 🇨🇦 CA
Front Right Outer
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FVP Fits: 3.6L V6 TI92090
🇺🇸 US 🇨🇦 CA
Front Inner
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MCQUAY-NORRIS Fits: 3.6L V6 ES5047
🇺🇸 US 🇨🇦 CA
Left Outerwithout Performance Package
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MEVOTECH Fits: 3.6L V6 GS50775
🇺🇸 US 🇨🇦 CA
Original Grade
Fitment notes — MEVOTECH GS50775
Original Grade
Front Innerwithout Performance Package
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MEVOTECH Fits: 3.6L V6 GS506102
🇺🇸 US 🇨🇦 CA
Original Grade
Fitment notes — MEVOTECH GS506102
Original Grade
Front Left Outerwithout Performance Package
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MEVOTECH Fits: 3.6L V6 GS506103
🇺🇸 US 🇨🇦 CA
Original Grade
Fitment notes — MEVOTECH GS506103
Original Grade
Front Right Outerwithout Performance Package
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QUICK STEER Fits: 3.6L V6 EV801304
🇺🇸 US 🇨🇦 CA
Front Innerwithout Performance Package
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Premium

Brand Part Number Markets Notes Buy
MEVOTECH Fits: 3.6L V6 TXMS506102
🇺🇸 US 🇨🇦 CA
TTX
Fitment notes — MEVOTECH TXMS506102
TTX
Front Left Outerwithout Performance Package
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MEVOTECH Fits: 3.6L V6 TXMS506103
🇺🇸 US 🇨🇦 CA
TTX
Fitment notes — MEVOTECH TXMS506103
TTX
Front Right Outerwithout Performance Package
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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.

Tie Rod Nut

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 11548246
🇺🇸 US 🇨🇦 CA
Inner
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This table covers the Tie Rod nuts.

Buying Steering Parts for a 2019 Buick Lacrosse

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 Knuckle .

Frequently Asked Questions

How many steering parts fit the 2019 Buick Lacrosse?

Our catalog currently lists 49 steering parts for the 2019 Buick Lacrosse across 14 subcategories and 11 brands, covering both the 2.5L L4 and the 3.6L V6. Each part is matched to the engine(s) it fits.

Do steering parts differ between 2019 Buick Lacrosse 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 2019 Buick Lacrosse?

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 2019 Buick Lacrosse 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 2019 Buick Lacrosse?

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 2019 Buick Lacrosse

Steering Parts for Other Buick Lacrosse 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.