2016 Buick Lacrosse Parts
Before ordering anything for a 2016 Buick Lacrosse, confirm the engine: our records list 2 variants (2.4L L4, 3.6L V6), and many of the 4,913 parts fit only one of them. The engine code is on the emissions label under the hood if you're not sure — then pick a category below and filter to your engine.
Parts include OEM and aftermarket brands with full part numbers and application notes — position, trim and market qualifiers — so what you order matches what the factory catalog actually specifies for this vehicle.
Browse by Engine
2.4L L4
1,033 parts · 4 categories Verified fitment3.6L V6
3,880 parts · 20 categories Verified fitmentNot sure which engine you have? Check the emissions label under the hood, your registration, or decode the VIN — the 8th character usually identifies the engine.
Parts by Category
Belt Drive Parts
49 parts · 4 subcategories · 15 brands Verified fitment Spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys.Body & Lamp Assembly Parts
381 parts · 58 subcategories · 22 brands Verified fitment Covers the exterior panels, bumpers, mirrors, lamps and the trim that keeps weather and road debris out.Brake & Wheel Hub Parts
1,336 parts · 51 subcategories · 54 brands Verified fitment Handles stopping power and keeps each wheel turning true on its bearing and hub assembly.Cooling System Parts
327 parts · 36 subcategories · 55 brands Verified fitment Keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.Drivetrain Parts
92 parts · 40 subcategories · 14 brands Verified fitment Moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.Electrical Parts
131 parts · 31 subcategories · 30 brands Verified fitment Covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.Electrical Bulb & Socket Parts
130 parts · 17 subcategories · 12 brands Verified fitment Covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.Electrical Connector Parts
147 parts · 55 subcategories · 16 brands Verified fitment Supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.Electrical Switch & Relay Parts
167 parts · 33 subcategories · 18 brands Verified fitment Covers the switches, relays and flashers that route power to everything the driver touches.Engine Parts
495 parts · 89 subcategories · 68 brands Verified fitment Covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.Exhaust & Emission Parts
145 parts · 19 subcategories · 35 brands Verified fitment Carries combustion gases out safely and keeps emissions equipment — catalytic converters, O2 sensors, EGR — doing its job.Fuel & Air Parts
182 parts · 35 subcategories · 44 brands Verified fitment Meters fuel and air — pumps, injectors, filters, intake components and the sensors that balance the mixture.Heat & Air Conditioning Parts
174 parts · 31 subcategories · 36 brands Verified fitment Keeps the cabin comfortable and the windshield clear through the compressor, condenser, evaporator, heater core and blower.Ignition Parts
80 parts · 9 subcategories · 32 brands Verified fitment Delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.Interior Parts
110 parts · 25 subcategories · 13 brands Verified fitment Covers cabin hardware — seat components, handles, switch bezels, carpet, pedals and the pieces that take daily wear.Steering Parts
195 parts · 34 subcategories · 30 brands Verified fitment Connects driver to road through the rack, pump, tie rods, and column components.Suspension Parts
341 parts · 31 subcategories · 24 brands Verified fitment Controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links.Automatic Transmission Parts
269 parts · 73 subcategories · 32 brands Verified fitment Covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.Wheel Parts
57 parts · 10 subcategories · 11 brands Verified fitment Covers lug nuts, studs, hub caps, TPMS sensors and trim rings.Wiper & Washer Parts
105 parts · 14 subcategories · 26 brands Verified fitment Keeps the glass clear — blades, arms, linkages, washer pumps and nozzles.Each category page covers all 2 engine options for the 2016 Buick Lacrosse — every part shows the engine(s) it fits, and an on-page filter narrows it to yours.
Confirm your configuration
Other Buick Lacrosse Years
Getting Fitment Right on the 2016 Buick Lacrosse
The 2016 Buick Lacrosse was sold with 2 engines, and that single fact drives most fitment mistakes for this vehicle. Water pumps, radiators, belts, engine mounts, exhaust components and even brake packages can differ between engine options of the same model year. Every one of the 4,913 parts listed here shows the engine(s) it fits, and the category pages include a filter that hides everything that doesn't apply to yours.
OEM-grade and aftermarket brands are listed together wherever both publish fitment for the 2016 Buick Lacrosse, each with a full part number. That makes the practical workflow simple: find the subcategory, match the part number against your old part or repair quote, then choose the brand and grade that fits how the vehicle is used.
Frequently Asked Questions
How many parts fit the 2016 Buick Lacrosse?
We list 4,913 parts for the 2016 Buick Lacrosse, organized into 20 categories across 2 engine options. Every part includes the brand, manufacturer part number and fitment notes.
Which engines came in the 2016 Buick Lacrosse?
Our records list 2.4L L4, 3.6L V6. Parts frequently differ between them — a part verified for one engine is not guaranteed to fit another — so identify your engine first (emissions label under the hood, or the VIN's 8th character), then use the engine filter on each category page.
Are OEM and aftermarket parts both available for the 2016 Buick Lacrosse?
Yes — parts come from original-equipment suppliers and established aftermarket brands, shown side by side with their part numbers where both cover the same fitment. Cross-referencing those numbers is how you confirm an aftermarket part genuinely replaces the OEM one.
How do I verify a part number fits my 2016 Buick Lacrosse?
Search the number on this site: the result shows the part, its brand and every configuration with published fitment. If your exact year, model and engine appear in that list, the number is a match. The notes column carries any remaining qualifiers — position, trim or production date.
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.