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Buyer Guide · Jul 25, 2026

2021 · GMCYukon Denali

Asking price$0
Public guide
Asking$40,490
Mileage103,586 mi
Engine6.2L 8-Cylinder
TransmissionAutomatic 10-spd
Drivetrain4WD
BodySUV
VIN1GKS2DKL0MR••••••

What the data shows

This 2021 GMC Yukon Denali is in the mileage window where the 6.2L L87’s most expensive documented problem starts to matter: Dynamic Fuel Management lifter failure, which can turn into camshaft damage if it keeps being driven. The 10-speed automatic also deserves attention at this mileage, especially if it shudders or shifts oddly.

Budget for near-term drivetrain and suspension work, and verify cold-start noise plus transmission behavior on the test drive. The asking price is roughly in line with market for a clean-title Denali with this mileage, so the condition and service records matter more than the sticker.

Red flags

  • 103,586 Miles

    this is past the point where the 6.2L lifter and transmission issues start showing up

  • L87 Dynamic Fuel Management

    this engine family has a well-documented lifter failure pattern that can cascade into camshaft damage

  • 104k-Mile Full-Size SUV Wear

    suspension, cooling, and drivetrain repairs tend to stack up around this mileage

Green flags

  • 4WD Denali

    the high-trim 4WD setup keeps demand stronger than lower trims

  • VIN-Verified 6.2L V8

    the listing matches the engine you would expect for this trim

What’s costing this car points

Fixing these, or marking them done, raises the score.

  • Dynamic Fuel Management Lifters
    Usually shows up around 70k mi · $2,800 to $7,500 to fix
    −0.8
  • Camshaft Wear
    Usually shows up around 80k mi · $3,500 to $9,000 to fix
    −0.2
  • Magnetic Ride Shocks
    Usually shows up around 90k mi · $1,200 to $3,500 to fix
    −0.1
  • 5 smaller items
    −0.1
Fixing the top three$7,500 to $20,000

When this car gets expensive

The chance of a major repair as the miles add up. This one is at 104k, right where the climb starts.

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75%
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You’re here · 104k
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48k
72k
96k
120k
144k
168k
193k
2.9/10
ReliabilityPoor
Deal0.0
8 open issues
Critical
01
Major
03
Caution
04
8 Findings8 open, 1 critical

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2021 GMC Yukon Denali: 2.9/10 | Squeezed