2025 Chevrolet Silverado 2500HD Towing Capacity

230 of 1,094 live listings carry the Z6A GOOSENECK/5TH WHEEL PACKAGE, read from the window sticker or OEM code. Updated hourly.

Every 2025 Silverado 2500HD trim in our catalog is rated 18,500 lb conventional, whether it is the Work Truck or Custom with the 6.6L gas V8 or the LT, LTZ, High Country and ZR2 with the Duramax diesel. Two RPO codes change that: Z6A, the gooseneck / 5th-wheel package, rated 18,100 lb gooseneck, and NHT, the Max Trailering Package, rated 20,000 lb conventional and 21,600 lb gooseneck. Diesel axle ratios show a dash where the catalog value isn't confirmed against an OEM source.

Live listings with tow equipment

Counted only when the package shows on the truck's window sticker or in its OEM option codes, not in dealer text.

GOOSENECK/5TH WHEEL PACKAGE

Z6A

230 live listings

Median Towing Goose Score 71

Rating with this package: 18,100 lb gooseneck / 5th-wheel

Max Trailering Package

NHT

34 live listings

Median Towing Goose Score 73

Rating with this package: 20,000 lb conventional · 21,600 lb gooseneck / 5th-wheel

Top Towing scores among them

Tow rating by trim

TrimEngineDriveAxleConventional (lb)Gooseneck (lb)
Custom6.6L V84WD3.7318,500—
High Country6.6L Duramax Diesel4WD—18,500—
LT6.6L Duramax Diesel4WD—18,500—
LTZ6.6L Duramax Diesel4WD—18,500—
Work Truck6.6L V82WD3.7318,500—
ZR26.6L Duramax Diesel4WD—18,500—

One catalog configuration per trim. Each trim comes in several engine, axle, cab and bed combinations with different ratings; a truck's own window sticker has its exact ones. A dash means the figure isn’t in our catalog or isn’t confirmed against an OEM source.

Factory tow packages

Verified packages with an OEM order code and what they change for towing. A rating is shown only where every verified source for that code agrees.

GOOSENECK/5TH WHEEL PACKAGE

Z6A

Trims not listed in our catalog

  • Gooseneck / 5th-wheel rating with the package: 18,100 lb
  • 5th-wheel / gooseneck prep

230 live listings carry it.

Max Trailering Package

NHT

On: Custom, High Country, LT, LTZ, Work Truck

  • Conventional tow rating with the package: 20,000 lb
  • Gooseneck / 5th-wheel rating with the package: 21,600 lb
  • Max-tow equipment

34 live listings carry it.

Gooseneck and 5th-wheel

  • Z6A GOOSENECK/5TH WHEEL PACKAGE — 18,100 lb gooseneck / 5th-wheel rating with the package; on 230 live listings.
  • NHT Max Trailering Package — 21,600 lb gooseneck / 5th-wheel rating with the package; on 34 live listings.
Shop 777 used 2025 Chevrolet Silverado 2500HD listings

Tow ratings are catalog figures checked against OEM towing guides and order guides; a truck's window sticker is the final word. How Goose scores trucks