2003 Buick Century Parts
Our catalog shows a single engine for the 2003 Buick Century: the 3.1L V6. All 722 parts listed for this model year are matched to it — browse them by category below.
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
Not 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
35 parts · 4 subcategories · 16 brands Verified fitment Spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys.Body & Lamp Assembly Parts
160 parts · 42 subcategories · 29 brands Verified fitment Covers the exterior panels, bumpers, mirrors, lamps and the trim that keeps weather and road debris out.Brake & Wheel Hub Parts
489 parts · 44 subcategories · 51 brands Verified fitment Handles stopping power and keeps each wheel turning true on its bearing and hub assembly.Cooling System Parts
38 parts · 8 subcategories · 20 brands Verified fitment Keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.Confirm your configuration
Other Buick Century Years
Getting Fitment Right on the 2003 Buick Century
The 2003 Buick Century shipped with a single engine — the 3.1L V6 — which keeps fitment straightforward: all 722 parts listed for this model year are matched to that configuration. What still deserves attention is the notes column on each part, where position (front/rear, left/right), trim and production-date qualifiers live.
OEM-grade and aftermarket brands are listed together wherever both publish fitment for the 2003 Buick Century, 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 2003 Buick Century?
We list 722 parts for the 2003 Buick Century, organized into 4 categories. Every part includes the brand, manufacturer part number and fitment notes.
Which engine does the 2003 Buick Century have?
A single engine is listed for this model year: the 3.1L V6. Every part listed for the 2003 Buick Century is matched to it, so there's no engine ambiguity — just check the notes column for position and trim qualifiers.
Are OEM and aftermarket parts both available for the 2003 Buick Century?
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 2003 Buick Century?
Search the number on this site: the result shows the part, its brand and every configuration with published fitment. If your exact year, model 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.