model year

2018 GMC Sierra C15 2WD configuration 38986

Official US catalog configuration for the 2018 GMC Sierra C15 2WD: 5.3L 8-cylinder Regular Gasoline SIDI, Automatic 6-spd, Rear-Wheel Drive.

Claim-level evidence reviewed Reviewed 8/27/2026

answer

Exact catalog configuration

FuelEconomy.gov identifies this as configuration 38986 for the 2018 GMC Sierra C15 2WD. The catalog row specifies 5.3L 8-cylinder Regular Gasoline SIDI, Automatic 6-spd, Rear-Wheel Drive, and Regular Gasoline. This is a configuration record, not a statement that every vehicle sold under the same model name has this powertrain.

make
GMC
model
Sierra C15 2WD
engine
5.3L 8-cylinder Regular Gasoline SIDI
source
FuelEconomy.gov vehicles.csv
fuelType
Regular Gasoline
cylinders
8
modelYear
2,018
drivetrain
Rear-Wheel Drive

SOURCES

applicability

Engine, transmission, and generation fields

Engine: 5.3L 8-cylinder Regular Gasoline SIDI. Transmission: Automatic 6-spd. Drive: Rear-Wheel Drive. Fuel: Regular Gasoline. Vehicle class: not specified. Generation label: Catalog span 2007–2018. The generation basis is catalog_span, which means contiguous catalog coverage and not an asserted OEM chassis-generation boundary.

make
GMC
model
Sierra C15 2WD
engine
5.3L 8-cylinder Regular Gasoline SIDI
source
FuelEconomy.gov vehicles.csv
fuelType
Regular Gasoline
cylinders
8
modelYear
2,018
drivetrain
Rear-Wheel Drive

diagnosis

How to use this configuration

Match the VIN, emissions label, engine identifier, transmission, drivetrain, and build information before ordering a part or applying a diagnostic procedure. FuelEconomy.gov configuration IDs describe catalog variants; they do not prove the equipment installed on an individual vehicle.

individualVehicleClaim
No
vinVerificationRequired
Yes

methodology

Source and update method

This page is generated from one exact row in the official FuelEconomy.gov downloadable vehicle dataset. Car Trouble Lab stores the source vehicle ID and row digest, and republishes a new reviewed snapshot when the source facts change.

source
FuelEconomy.gov
rowSha256
4fd3f88ddf3c1de805731afd2ead8177de2d19e3a1a518aa2203fa9e8ff78b38
sourceVehicleId
38986