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.
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.
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.
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.
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.
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.
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.
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)
Selected Car:
Custom wheel size (optional)
Tip: change values here to simulate custom wheels and immediately see the impact in the comparison below.
Custom tire size (optional)
Installed on (your vehicle)
Selected Car:
2019 Buick LaCrosse
Compare Rims
Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
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5x115
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
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70.3 mm
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
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M12 x 1.5
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
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18"
Rim Width
The distance between the inner edges of the wheel is measured in inches.
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8.0"
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
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42 mm
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
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-
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
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-
Compare Tires
Specification
Wheels from
Installed on
Result (Click it)
Section Width
The width of the tire from sidewall to sidewall, measured in millimeters.
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Aspect Ratio
The height of the tire’s sidewall expressed as a percentage of its width.
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Diameter
The wheel diameter for which the tire is designed to fit.
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Tire Pressure
The recommended air pressure for safe and efficient driving.
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Overall Diameter
The total height of the tire and wheel combined affects clearance and speedometer accuracy.
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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.
As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
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
Spec
Value (page)
Notes
Bolt pattern
5x120
Critical match
Center bore
67.1 mm
Use hub-centric ring if needed
Thread size
M14 x 1.5
Confirm lug nut seat type
Rim diameter
19 in
Page also lists 18 in tire. Verify trim
Rim width
8.5 in
Typical OEM width
Offset (ET)
40 mm
Stay close unless tested
Backspacing
5.82 in
Consistent with ET 40
Tire (section x aspect)
235 / 50
Confirm 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
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.