---
id: which-sierra-1500-trims-have-v8-engines-and-best-towing-capability
title: "Which Sierra 1500 trims have V8 engines and best towing capability?"
category: faq
subtopic: sierra-v8-towing
page_type: faq
source_url: "https://www.markquartmotors.com/research/gmc/sierra-1500/trim.htm"
tags: ["GMC", "Sierra 1500", "V8", "towing", "SLT"]
questions:
  - "Does the Sierra 1500 have a V8 option?"
  - "Which Sierra trim is best for towing?"
  - "What engine does the SLT have?"
related: [sierra-trim-overview, sierra-slt-trim, sierra-at4-trim]
dealer: Markquart Motors
---

The **2025 GMC Sierra 1500 SLT** is where V8 power enters the lineup. It's equipped with a **robust 5.3L V8 engine** paired with a **10-speed automatic transmission**, delivering serious towing and hauling muscle.

The SLT focuses on enhanced trailering with features like an **available Max Trailering Package**, **automatic locking rear differential**, heavier-duty springs, and increased rear axle weight ratings. Premium **18" machined aluminum wheels** with Dark Grey accents complete the look. Optional **skid plates** and black recovery hooks boost confidence for rugged use. Inside, you'll find upscale touches and advanced safety tech like **Trailer Side Blind Zone Alert**.

If off-road adventure is your priority, the **AT4** offers a **3.0L Duramax Turbo-Diesel** engine with incredible torque and an off-road-tuned suspension, plus mud-terrain tires and integrated trailer brake controller.

For detailed specs and towing capacities, call Markquart Motors at **(715) 833-0444** or view our new Sierra inventory online.