Chevrolet Silverado 3500 HD
CHEVROLET SILVERADO 3500 HD
2026 ModelLeft Hand Drive / Converted Right Hand Drive·Heavy-Duty Truck·10 Variants
Last updated
Chevrolet Silverado 3500 HD
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The 2026 Chevrolet Silverado 3500HD single rear wheel (SRW) lineup for the U.S. market is a heavy‑duty, body‑on‑frame pickup built primarily in Flint, Michigan and Oshawa, Ontario, offered in WT, LT, LTZ and High Country trims with Regular Cab, Double Cab and Crew Cab bodies and Standard (approx. 6.75‑ft) or Long (8‑ft) beds. It uses a 6.6L V8 gas or 6.6L Duramax turbo‑diesel engine, both paired with an Allison 10‑speed automatic, and adds a new Polar White Tricoat exterior color for High Country for 2026, replacing Iridescent Pearl Tricoat.
Variants (Trims × Powertrains – SRW Only)
All 2026 Silverado 3500HD engines pair with a 10‑speed Allison automatic transmission; gas is standard, diesel optional. WT and LT diesels additionally offer a PTO‑prepped 10‑speed Allison for upfit use (Chevrolet fleet/upfitter documentation – inference beyond retail specs, consistent with GM’s HD PTO practice).
Trim / Engine / Drivetrain Overview (SRW)
| Trim | Engine | Power | Torque | Transmission | Drivetrain Options (SRW only) | Fuel Type | Typical Seating (cab-dependent) |
|---|---|---|---|---|---|---|---|
| WT Gas | 6.6L V8 L8T | 401 hp @ 5,200 rpm | 464 lb‑ft @ 4,000 rpm | Allison 10‑speed automatic | RWD; 4WD available with 2‑speed transfer case | Gasoline | 2–6 (Regular/Double/Crew Cab) |
| WT Diesel | 6.6L Duramax V8 L5P | 470 hp | 975 lb‑ft | Allison 10‑speed automatic; available PTO‑prepped 10‑speed Allison (WT diesel, SRW) | RWD; 4WD available | Diesel | 2–6 (cab-dependent) |
| LT Gas | 6.6L V8 L8T | 401 hp | 464 lb‑ft | Allison 10‑speed automatic | RWD; 4WD available | Gasoline | 3–6 (Regular/Double/Crew Cab) |
| LT Diesel | 6.6L Duramax V8 L5P | 470 hp | 975 lb‑ft | Allison 10‑speed automatic; available PTO‑prepped 10‑speed Allison (LT diesel, SRW) | RWD; 4WD available | Diesel | 3–6 (cab-dependent) |
| LTZ Gas | 6.6L V8 L8T | 401 hp | 464 lb‑ft | Allison 10‑speed automatic | Mainly 4WD SRW Crew/Double Cab | Gasoline | 5–6 (bucket/bench front seats) |
| LTZ Diesel | 6.6L Duramax V8 L5P | 470 hp | 975 lb‑ft | Allison 10‑speed automatic | Mainly 4WD SRW Crew/Double Cab | Diesel | 5–6 |
| High Country Gas | 6.6L V8 L8T | 401 hp | 464 lb‑ft | Allison 10‑speed automatic | 4WD SRW Crew Cab (Standard or Long Bed) | Gasoline | 5 (standard bucket seats) |
| High Country Diesel | 6.6L Duramax V8 L5P | 470 hp | 975 lb‑ft | Allison 10‑speed automatic | 4WD SRW Crew Cab (Std/Long Bed) | Diesel | 5 |
Dimensions & Capacities (Representative SRW Crew Cab – Gas & Diesel)
Exact figures vary slightly with cab, bed and drivetrain; the following reflects typical SRW Crew Cab 3500HD dimensions based on current HD data.
| Spec | 3500HD SRW – Standard Bed Crew Cab | 3500HD SRW – Long Bed Crew Cab |
|---|---|---|
| Overall Length | ~250.0 in (6,350 mm) | ~252.0 in (6,401 mm) |
| Overall Width (excluding mirrors) | ~81.9 in (2,080 mm) | |
| Overall Height | ~82.6 in (2,099 mm) | |
| Wheelbase | ~159.1 in (4,043 mm) Crew Std Bed | ~172–173 in (≈4,370 mm) Crew Long Bed (GM HD typical – inference) |
| Ground Clearance | ~11.2 in (284 mm), 4WD SRW | |
| Bed Length (floor) | Std: ~6.75 ft (2,057 mm) | Long: ~8.2 ft (2,490 mm) |
| Bed/Cargo Volume | Std bed ≈ 69–71 ft³ (1.95–2.01 m³) (Durabed, SRW – typical HD) | Long bed ≈ 83–89 ft³ (2.35–2.52 m³) (Durabed – typical HD) |
| GVWR (Gross Vehicle Weight Rating) | SRW 3500HD typically ~11,500–12,000 lb (5,216–5,443 kg) depending on configuration (GM HD range – inference) | |
| Curb Weight Range (SRW) | ≈ 6,830–7,505 lb (3,097–3,405 kg) across trims/cab/engine | |
| Max Payload (SRW) | Up to ≈4,039–4,200 lb (≈1,832–1,905 kg) depending on cab/bed/engine/drive | |
| Max Conventional Towing (SRW) | Gas: typically up to ≈19,000 lb (8,618 kg) in optimal 3500HD SRW setups Diesel: higher, but below diesel DRW max (≈22–24k – inference from HD range) | |
| Max 5th‑Wheel/Gooseneck Towing (SRW) | Gas: 19,080 lb (8,653 kg) in 3500HD SRW Regular Cab configuration Diesel SRW: typically mid‑20k range, below 36,000 lb diesel DRW maximum | |
| Fuel Tank Capacity | Approx. 36–36.5 gal (136–138 L) on HD Crew Cab (GM HD typical – inference) |
Available Colors (2026 SRW WT/LT/LTZ/High Country)
Confirmed 2026 Silverado 3500HD color palette for these trims includes the following exterior paints. Polar White Tricoat (G4J) is new for 2026 High Country, replacing the discontinued Iridescent Pearl Tricoat (previous High Country color).
| Color Name | Paint Code | Charge Type | Available Trims (SRW WT/LT/LTZ/High Country) |
|---|---|---|---|
| Black | GBA | No‑charge | WT, LT, LTZ, High Country |
| Lakeshore Blue Metallic | GXP | No‑charge | WT, LT, LTZ, High Country |
| Red Hot | G7C | No‑charge | WT, LT only |
| Sterling Gray Metallic | GXD | No‑charge | WT, LT, LTZ, High Country |
| Summit White | GAZ | No‑charge | WT, LT, LTZ, High Country |
| Cypress Gray | GBD | Premium (surcharge) | LT, LTZ only |
| Radiant Red Tintcoat | GNT | Premium (higher surcharge tier) | LTZ, High Country only |
| Polar White Tricoat (NEW 2026) | G4J | Premium (highest surcharge tier) | High Country exclusive (replaces Iridescent Pearl Tricoat) |
Key Features by Trim (SRW Focus)
Feature content is summarized from 2026 Silverado HD descriptions; equipment can vary by cab, bed and options.
WT (Work Truck)
Safety & Driver Assistance
- StabiliTrak electronic stability control with trailer sway control
- Automatic locking rear differential
- Rear Vision Camera
- Integrated trailer brake controller standard for 2026
- Tire Pressure Monitoring System
Infotainment & Connectivity (Chevrolet Infotainment 3)
- Chevrolet Infotainment 3 system with color touchscreen (7–10.2 in depending on configuration – HD range)
- Bluetooth, Apple CarPlay and Android Auto compatibility
- 2–4 speakers depending on cab
- USB ports for data and charging
Comfort & Interior
- Vinyl flooring and durable cloth or vinyl seats (fleet‑oriented)
- Manual air conditioning
- 40/20/40 split‑bench front seat on most cab styles
- Manual tilt steering wheel
Exterior
- 18‑inch steel wheels (SRW; 17‑inch for DRW, not described here)
- Black bumpers and grille
- Durabed cargo box with 12 standard tie‑downs
- CornerStep rear bumper
- Manual‑fold trailer mirrors (optional upgrade to towing mirrors)
Trailering Technology
- Standard trailering package with hitch platform
- Integrated trailer brake controller (standard 2026)
- Hitch Guidance in camera display (basic guidance)
LT
Safety & Driver Assistance
- All WT safety features
- Available lane departure warning, forward collision alert and automatic emergency braking (packages)
- Available rear park assist
Infotainment & Connectivity
- Chevrolet Infotainment 3 with larger touchscreen (up to 13.4 in on HD refresh models)
- 12.3‑inch digital driver information center in many LT configurations
- Enhanced voice recognition and cloud‑connected navigation (available)
Comfort & Interior
- Carpeted flooring
- Cloth seats with available power‑adjustable driver seat
- Leather‑wrapped steering wheel (available)
- Dual‑zone automatic climate control (available packages)
Exterior
- Alloy wheels (aluminum)
- Body‑color bumpers and chrome grille accents (varies by package)
- LED cargo box lighting
- Available LED headlamps and signature DRLs (with packages)
Trailering Technology
- Enhanced Hitch Guidance with Hitch View (available)
- In‑vehicle Trailering App with trailer profiles (when equipped with larger screen)
- Multiple camera views including bed view and rear side views (available)
LTZ
Safety & Driver Assistance
- WT/LT features plus:
- Front and Rear Park Assist
- Blind Zone Alert and Rear Cross Traffic Alert (available on certain configurations)
- Available Adaptive Cruise Control (standard on High Country; LTZ often optional)
Infotainment & Connectivity
- Chevrolet Infotainment 3 Premium with larger HD touchscreen
- 12.3‑inch digital driver cluster standard or widely available
- Premium audio system (Bose available)
- Wireless Apple CarPlay / Android Auto and wireless charging (available)
Comfort & Interior
- Leather‑appointed seating surfaces
- Heated front seats and heated steering wheel (standard or available)
- Power driver and front passenger seats with lumbar support
- Keyless Open and Start; remote start
Exterior
- 18‑ or 20‑inch aluminum wheels depending on package
- LED headlamps, fog lamps and taillamps
- Chrome grille, mirror caps and exterior trim
- Power‑up/down tailgate available (standard on High Country)
Trailering Technology
- Hitch Guidance with Hitch View standard or widely available
- Advanced Trailering App with checklist, maintenance reminders and trailer light test
- Bed View Camera and Surround‑view options (packages)
High Country
Safety & Driver Assistance
- Full suite of driver assists, typically including:
- Forward Collision Alert with Automatic Emergency Braking
- Lane Departure Warning and Lane Keep Assist
- Rear Cross Traffic Alert and Blind Zone Alert
- Adaptive Cruise Control now standard for 2026
- HD Surround Vision (360° camera system)
Infotainment & Connectivity
- Chevrolet Infotainment 3 Premium with large HD center display
- Bose premium audio system
- 12.3‑inch digital driver cluster
- Wireless smartphone projection and wireless phone charging
Comfort & Interior
- Premium perforated leather seating with contrast stitching
- Heated and ventilated front seats; heated rear outboard seats
- Real wood interior trim and refined cabin materials
- Power tilt/telescoping steering column (available)
- Driver memory settings
Exterior
- Unique High Country grille and chrome accents
- 20‑inch polished aluminum wheels
- Power‑up/power‑down tailgate standard
- LED signature lighting and High Country badging
- New wheel designs for 2026 across the range (High Country with unique pattern – change vs 2025)
Trailering Technology
- HD Surround Vision with multiple trailer camera views
- Advanced Trailering App with full feature set
- Integrated trailer brake controller (standard)
- Bed View Camera and hitch alignment guidelines
Towing & Payload Capability (SRW – How It Varies)
Towing and payload vary significantly by engine, cab, bed length, drivetrain (RWD/4WD) and axle ratio.
- Max Payload (SRW 3500HD)
- Up to about 4,039–4,200 lb (≈1,832–1,905 kg) in optimal SRW gas Regular Cab Long Bed configurations.
- Payload generally decreases with Crew Cab, 4WD and diesel due to higher curb weight.
- Max Conventional Towing (SRW 3500HD)
- Gas 6.6L V8: typically in the 17,000–19,000 lb (7,711–8,618 kg) range depending on axle ratio and cab/bed, with best numbers from Regular Cab Long Bed RWD.
- Diesel 6.6L Duramax V8: higher conventional ratings than gas in comparable SRW setups, but below diesel DRW extremes; commonly over 20,000 lb (≈9,072+ kg) in optimal SRW configurations (inferred from HD ranges).
- Max 5th‑Wheel/Gooseneck Towing (SRW 3500HD)
- Gas SRW: up to 19,080 lb (8,653 kg) for a 3500HD Regular Cab SRW configuration.
- Diesel SRW: significantly higher than gas, often mid‑20k lb range, but max 36,000 lb (16,329 kg) is reserved for diesel DRW setups, not SRW.
Configuration Effects
- Cab size: Regular Cab generally yields highest payload/tow; Double and Crew Cab reduce payload and some tow ratings.
- Bed length: Long Bed improves 5th‑wheel/gooseneck ratings and sometimes payload vs Standard Bed.
- Engine: Diesel greatly boosts towing (especially 5th‑wheel/gooseneck), while gas often allows slightly higher payload due to lower engine weight.
- Drivetrain: RWD tends to provide higher ratings than 4WD because of lower curb weight.
- Axle ratio: Higher numeric axle ratios favor towing capacity, lower ratios favor fuel efficiency (specific ratios vary but follow typical HD patterns).
Powertrain Deep Dive
6.6L V8 Gas (L8T)
- Configuration: Pushrod, 16‑valve 6.6‑liter V8 gasoline engine.
- Output: 401 hp @ 5,200 rpm; 464 lb‑ft @ 4,000 rpm.
- Induction: Naturally aspirated, port fuel injection (GM HD gas).
- Transmission: Allison 10‑speed automatic, exclusively paired for 2026.
- Role: Standard engine across WT, LT, LTZ and High Country; optimized for durability and cost‑effective operation while still enabling up to 19,080 lb 5th‑wheel/gooseneck towing on SRW Regular Cab and strong payload.
6.6L Duramax Turbo‑Diesel V8 (L5P)
- Configuration: Turbocharged and intercooled pushrod 32‑valve 6.6‑liter diesel V8.
- Output: 470 hp and 975 lb‑ft of torque.
- Induction: High‑pressure common‑rail direct injection, variable‑geometry turbocharger (Duramax L5P family).
- Transmission: Allison 10‑speed automatic, standard; PTO‑prepped 10‑speed Allison available on WT and LT diesel for upfit needs (e.g., hydraulic pumps, compressors).
- Role: Optional on WT, LT, LTZ and High Country; focuses on maximum towing and torque. When properly configured (especially DRW), it enables up to 36,000 lb gooseneck towing, though that figure applies to DRW rather than SRW.
2026 vs 2025: Key Changes (SRW WT/LT/LTZ/High Country)
For the 2026 Silverado 3500HD SRW WT/LT/LTZ/High Country lineup, changes relative to 2025 are mainly cosmetic and feature‑content adjustments, with no powertrain or chassis changes.
- Exterior Colors
- Polar White Tricoat (G4J) added as a new High Country‑exclusive color for 2026.
- Iridescent Pearl Tricoat discontinued on High Country, replaced by Polar White Tricoat.
- Wheel Designs
- New wheel designs across the range (WT steel, LT/LTZ aluminum, High Country polished) reflecting updated appearance packages for 2026.
- Trim Content Adjustments (LT / LTZ)
- A small number of LT/LTZ configurations and option combinations were deleted or consolidated, carrying over running changes introduced mid‑2025 (e.g., package realignments and standardization of certain safety/tech features).
- Adaptive Cruise Control became standard on High Country for 2026, tightening the driver‑assistance content at the top trim.
- Powertrain & Chassis
- No changes to engine outputs, transmission pairing or core chassis specifications vs 2025; the 6.6L gas and 6.6L Duramax diesel engines continue with the same ratings and the Allison 10‑speed automatic across all trims.

Variant Configuration
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