2018 GMC Sierra SLT

VIN  1GT42XCY1JF212104

This 2018 GMC Sierra SLT is listed at $43,929 with 91,004 miles in Flagstaff, AZ.

GOOD DEAL $2,467 below typical price Asking $43,929 · typical market price $46,396 · based on 6 comparable same-build listings.
VehiLeaks · Vehicle History Report
The full history of this 2018 GMC Sierra SLT
VIN 1GT42XCY1JF212104 · one-time $6, no subscription
  • Reported accidents & damage
  • Title brands — salvage, flood, lemon
  • Odometer readings over time
  • Every past listing: price, dealer, photos
Pickup 6.6L V8 4WD Diesel
2018 GMC Sierra SLT
$6 one-time
Get the full report → Instant access after checkout

Market Price Range

Below market
$41,850
Typical price
$46,396
Above market
$47,944
Based on 6 comparable same-build listings.
This vehicle: $43,929 — $2,467 below the typical market price ($46,396)
Market data as of August 16, 2026

Vehicle Decode

Body
Pickup
Engine
6.6L · V8 · Diesel
Drive
4WD/4-Wheel Drive/4x4
Doors
4
Made by
GENERAL MOTORS LLC

Safety

  • ✗ Backup camera
  • ✗ Blind-spot monitor
  • ✗ Lane departure
  • ✗ ABS
  • ✗ Electronic stability

Price history for this VIN

Price increased $479 (+1.1%) over 4 days.

Jul 28, 2026 · $43,450 Aug 1, 2026 · $43,929

Asking prices recorded across 3 listing dates for VIN 1GT42XCY1JF212104, spanning 4 days.

Safety & ownership

EPA fuel economy (MPG)

City
18
Highway
24
Combined
20
Est. fuel cost: $2,330/year
Assumes 15,000 miles a year at $3.10/gallon and 20 MPG combined.

Model-level data for the 2018 GMC Sierra from NHTSA (recalls, NCAP crash tests) and EPA fueleconomy.gov, refreshed July 28, 2026.

Active listings

Full listing history on VehiSales →
Dealer Location Price Mileage Listed
Babbitt Ford Lincoln Flagstaff, AZ 86001 $43,929 91,004 mi 2026-07-31

Former listings

Dealer Location Price Mileage Listed
Babbitt Ford Lincoln Flagstaff, AZ 86001 $43,929 90,887 mi 2026-08-01

What would this 2018 GMC Sierra SLT cost per month?

Estimate the monthly payment on a $43,929 vehicle. Move the numbers to match your own loan.

10% down
7.0% is a typical rate for a well-qualified buyer — use your own quote if you have one.
Loan term
Estimated monthly payment
$783
per month
60 months · 7.0% APR · $4,393 down
Amount financed
$39,536
Total interest
$7,444

Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.

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