2026 Sierra 3500 HD SLT

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Available now
- On the lot and buyable now.
- Similar Sierra 3500 HD SLTs sell in a median of 9 days (139 recent sales) — these move fast.
- 326 of 326 listed nationwide are buyable right now.
Verify the out-the-door price
This listing is priced $9,000 below the typical Sierra 3500 HD SLT, which usually sells around MSRP. An advertised price this far under the norm often means a mandatory dealer add-on package (paint/fabric protection, accessories, etc.) or fees aren't reflected here — they're added at the dealership and can erase the discount. Confirm the full out-the-door price before you count on this as a deal.
Deal Analysis
This 2026 Sierra 3500 HD is listed at $70,144, which is $9,000 below its MSRP of $79,144 — a notable discount. This pricing is in line with the national average for comparable Sierra 3500 HD vehicles. This is a fresh listing, on the lot for only less than a day. Located at SUNTRUP BUICK GMC in Saint Peters, MO.
Price Breakdown
Listed price. A dealer's real offer can be lower (incentives, financing or trade-in conditions) or higher (added fees) — always ask for the out-the-door price.
Details
Delivery Pipeline
Factory Options
- — X31 BADGE$495
- — FACE$495
- — MOBILE SERVICE PLUS INSTALLED)$199
- — POWER$495
- — GMC PROTECTION PACKAGE$495
- — CONVENIENCE$650
- — SLT PREMIUM PACKAGE$5,245
- — OPTIONS$199
- — METALLIC$495
- — CHARGE$2,795
- — RATIO$495
- — CHARGING$5,245
Specifications
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Est. Monthly Payment
$1,235/mo
Estimate only, based on the advertised price. Does not include taxes, dealer fees, or insurance.
Save $1,394 on a comparable 2026 Sierra 3500 HD SLT about 0 miles away. The lowest is $68,750 in Saint Peters, MO — real leverage when you ask SUNTRUP BUICK GMC to match it. See that listing →
Comparable Vehicles
Avg markup: -$8,883
Listed today