OEM 2018 Cadillac XTS Parts

Select The Trim & Engine Of Your Vehicle Below

Last step: 2018 Cadillac XTS
2018 Cadillac XTS: pick your trim and engine

That locks in your vehicle so every part we show fits. Genuine GM parts at up to 40% off dealer prices.

Up to
40%
off dealer prices
Genuine GM OEM
Original factory part numbers
Fast shipping
Many in-stock orders by 2pm CT ship same day
Simple, no-hassle policy
Free VIN check
Send your VIN before you order
Ordering 2018 Cadillac XTS parts the right way
Know your generation

Getting parts right on a full-size car starts with knowing which generation you are working on. Front-drive full-size sedan widely used in livery and as a hearse and limousine base.

What we ship most for it

The parts we ship most for the 2018 Cadillac XTS are brake rotors and pads, water pumps, ignition coils, intake manifold gaskets and window regulators. Everything on this page is a factory GM part, built to the original specification and carrying the original part number. On a full-size car these are the components that carry load and heat, and they are where an aftermarket substitute costs you the job twice.

Not sure it fits? Send us your VIN

Body and exterior parts are where fitment errors get expensive, because a panel that is close but not correct will not line up with the panels around it. Confirm those against the VIN before ordering rather than after.

About this model year

2018 is a carryover year for this vehicle. That makes sourcing simpler in the mechanical systems and no simpler at all in trim and body. Engine option and trim level split suspension, brake and cooling parts on these cars.

Before you order

If you are not certain which version you have, give us the VIN and we will confirm fitment before you check out. In stock orders placed by 2pm Central typically leave our Dallas warehouse the same day, so most of the country sees short transit times. Cross-shopping a related truck? The 2018 Cadillac Escalade is the closest thing in the lineup that year.

A note on older GM parts

We specialize in GM vehicles that are 10 to 15 years old, and we often carry new-in-box parts for older models too. Discontinued parts are a normal part of the OEM business. When GM stops making a part and our stock is gone, that is the end of the line for that OEM part. We thank you in advance for understanding. The GM Parts Club advantage: our massive buying power lets us stock deep on the parts GM owners need, in our huge warehouse in Dallas, Texas.

Step 3 of 3: select your 2018 XTS trim and engine
The catalog then shows only what GM built for your vehicle.