2019 Buick LaCrosse Wheel Interchange

OEM wheel and tire fitment specs for the 2019 Buick LaCrosse, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.

Recorded OEM specifications for the 2019 Buick LaCrosse, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.

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2019 Buick LaCrosse Fitment Specs

Baseline mounting dimensions used for interchange decisions.

Bolt Pattern5x115, 5x120
Center Bore70.3 mm
Lug ThreadM12 x 1.5 View M12 x 1.5 options on Amazon
OEM Wheel Sizes18" – 20"
OEM Widths8" – 8.5"
OEM Offset Range40 mm – 42 mm

Multiple OEM configurations exist for this vehicle. Fitment can vary by trim, brakes, and factory wheel package – confirm your exact setup before buying.

Center-bore records disagree: year-level hub 67.1 mm vs trim range 70.3–70.3 mm. Interchange below does not treat this as an unqualified match.

Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.

Explore wheels at Tire Rack

Selected size: 18 × 8″ · ET +42

Showing matching bolt patterns and offsets up to 20 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.

We may earn a commission when you buy through these links. Prices and availability may change.

Donor vehicles with overlapping OEM specs

These are vehicle-year records whose recorded OEM ranges overlap this 2019 Buick LaCrosse. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.

Evaluated 15 donor years. Listed 15 eligible overlaps (not all evaluated years are compatible). Showing all listed.

2008 Buick LaCrosse

Check wheel configurationCenter-bore records disagree
  • Bolt pattern5x115 · Same recorded PCD
  • Center bore70.3 mm · same recorded hub figure
  • Wheel geometryOutside recorded OEM envelope

Dataset suggestionWheel spacer ≈ 10.18 mm – not a verified installation requirement.

A spacer of about 10.18 mm is a dataset suggestion only; clearance is not verified. Estimated outer position is about 10.18 mm farther inward than the mid OEM package.

2009, 2017–2018 Buick LaCrosse

Check wheel configurationCenter-bore records disagree

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2009
  • 2017
  • 2018
  • Bolt pattern5x115 · Same recorded PCD
  • Center bore70.3 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Center-bore records disagree (target year-level hub 67.1 mm vs trim range 70.3–70.3 mm). Unqualified overlap is not claimed until the conflict is resolved. Approximate position vs the mid OEM package: outer change -2.18 mm, inner change -4.18 mm. This uses aggregated width/offset ranges, not a specific wheel.

2016 Buick LaCrosse

Check wheel configurationCheck lug hardware: donor year M14x1.5 vs 2019 Buick LaCrosse M12x1.5
  • Bolt pattern5x115 · Same recorded PCD
  • Center bore70.3 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Recorded vehicle-side thread for the 2019 Buick LaCrosse is M12x1.5. This donor year is recorded as M14x1.5. That is the vehicle stud/nut thread, not an intrinsic thread stamped on the wheel. Hardware must match this vehicle’s studs and the selected wheel’s seat and engagement. Existing hardware may be reusable if it already matches. Seat style is not in this dataset, so products are not a verified fit.

Center-bore records disagree (target year-level hub 67.1 mm vs trim range 70.3–70.3 mm). Unqualified overlap is not claimed until the conflict is resolved. Recorded vehicle-side thread differs (M14x1.5 on the donor year vs M12x1.5 on the target vehicle). Hardware must match the target vehicle’s studs and the selected wheel’s seat. Existing hardware may be reusable if it already matches. Seat style is not confirmed in this dataset. Approximate position vs the mid OEM package: outer change -2.18 mm, inner change -4.18 mm. This uses aggregated width/offset ranges, not a specific wheel.

2005–2007 Buick LaCrosse

Check wheel configurationCenter-bore records disagree

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2005
  • 2006
  • 2007
  • Bolt pattern5x115 · Same recorded PCD
  • Center bore70.3 mm · same recorded hub figure
  • Wheel geometryNeeds configuration check

Donor width/offset sits outside the known OEM envelope for this vehicle.

2011–2017 Buick Regal

Check wheel configurationCheck lug hardware: donor year M14x1.5 vs 2019 Buick LaCrosse M12x1.5

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • Bolt pattern5x115 · Same recorded PCD
  • Center bore70.3 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Recorded vehicle-side thread for the 2019 Buick LaCrosse is M12x1.5. This donor year is recorded as M14x1.5. That is the vehicle stud/nut thread, not an intrinsic thread stamped on the wheel. Hardware must match this vehicle’s studs and the selected wheel’s seat and engagement. Existing hardware may be reusable if it already matches. Seat style is not in this dataset, so products are not a verified fit.

Center-bore records disagree (target year-level hub 67.1 mm vs trim range 70.3–70.3 mm). Unqualified overlap is not claimed until the conflict is resolved. Recorded vehicle-side thread differs (M14x1.5 on the donor year vs M12x1.5 on the target vehicle). Hardware must match the target vehicle’s studs and the selected wheel’s seat. Existing hardware may be reusable if it already matches. Seat style is not confirmed in this dataset. Approximate position vs the mid OEM package: outer change -3.18 mm, inner change -3.18 mm. This uses aggregated width/offset ranges, not a specific wheel.

Buick LaCrosse Years With Compatible Wheels

Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.

Will Wheels From Another Vehicle Fit?

Compare a donor vehicle or custom wheel against this 2019 Buick LaCrosse. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.

Compare

Compare wheel compatibility between two vehicles

Wheels from (donor vehicle)

Installed on (your vehicle)

Selected Car:

2019 Buick LaCrosse

Compare Rims

Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
-
5x115
Center Bore
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
-
70.3 mm
Thread Size
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
-
M12 x 1.5
Rim Diameter
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
-
18"
Rim Width
Rim Width
The distance between the inner edges of the wheel is measured in inches.
-
8.0"
Wheel Offset
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
-
42 mm
Backspacing
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
-
-
Wheel Fasteners
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
-
-

Wheel Fitment Parts for the 2019 Buick LaCrosse

Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.

Lug Nuts / Wheel Bolts

M12 x 1.5

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tl;dr

2019 Buick LaCrosse factory wheels use 5x120 studs, 67.1 mm bore, and M14 x 1.5 lug threads. OEM wheel size shown is 19 x 8.5 with ET 40 and 5.82 inch backspacing. Tire data on this page lists 235/50 but shows an 18 inch tire rim, which conflicts with the 19 inch wheel. Use the on-page calculator and OEM sources to confirm your trim before buying wheels or tires.

Recommendation

Match critical fitment first: bolt pattern, center bore, and lug thread. Prioritize wheels with 5x120 and a 67.1 mm bore. Stay near ET 40 on offset and around 8.5 inch rim width unless you test variations in the calculator. Confirm the correct rim diameter for your trim before selecting tires.

Impact

Getting the three core specs right avoids vibration and hub damage. Offset and width changes affect fender clearance and scrub radius. Mismatched rim diameter or tire size affects speedometer and ride height. Using the wrong bore can cause hub chatter or stress on lugs.

Risks

  • Incorrect rim diameter listed on this page could lead to incompatible tires.
  • Assuming ET tolerance beyond a few millimeters can cause rubbing or steering feel changes.
  • Using non hub-centric wheels without rings risks vibration.
  • Installing incorrect lug nut type or torque risks stud or wheel failure.

Next actions

Follow this checklist in order. Each step takes only minutes.

  • Verify your exact trim specs. Check the door jamb sticker, owner manual, or dealer parts department. Confirm rim diameter, width, and recommended tire size. This page contains conflicting wheel/tire diameter data; do not assume one value is correct.
  • Use the on-page wheel/tire calculator. Enter custom rim diameter, width, offset, and custom tire section/aspect ratio. Compare visual clearances and overall diameter changes before ordering.
  • Confirm lug thread and torque. Thread size is M14 x 1.5 per the page. Look up OEM wheel torque in your manual or dealer bulletin before tightening.
  • Measure hub bore and decide hub-centric rings if needed. Use a ring sized to 67.1 mm bore to center aftermarket wheels.
  • Select correct lug nuts. Choose the seat type that matches wheel design and the M14 x 1.5 thread. Check length and taper if using extended studs or spacers.
  • Test fit one wheel before final purchase when possible. Inspect for rubbing and clearance on suspension and fender lips.

Quick reference table

SpecValue (page)Notes
Bolt pattern5x120Critical match
Center bore67.1 mmUse hub-centric ring if needed
Thread sizeM14 x 1.5Confirm lug nut seat type
Rim diameter19 inPage also lists 18 in tire. Verify trim
Rim width8.5 inTypical OEM width
Offset (ET)40 mmStay close unless tested
Backspacing5.82 inConsistent with ET 40
Tire (section x aspect)235 / 50Confirm rim diameter before buying

Gotchas and final notes

Do not assume all specs are uniform across trims. If any spec is unknown, use the calculator to model changes and call your dealer for exact OEM torque and recommended tire sizes. Fitment mistakes often come from a single unchecked value.

Tools and parts (optional)

Common items to buy for a safe swap. Use these searches to find tools and rings.

Next steps: confirm your trim details, then run the on-page calculator. After that, order wheels and hardware that match bolt pattern, bore, and thread. If you want, I can walk through calculator scenarios with a target rim or tire size.

Methodology and sources

Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:

  • Bolt pattern / PCD
  • Center bore direction (donor wheel bore must not be smaller than the hub)
  • Wheel diameter, width, and offset against known OEM ranges
  • Lug thread / hardware differences (vehicle-side hardware)

A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.

Nick Marchenko

Automotive Expert