2007 GMC SIERRA 2500HD WT 4X4 DURAMAX EXT CAB LONG BOX

Vehicle Highlights

The 2007 GMC Sierra 2500HD WT is a no-nonsense heavy-duty truck built for one purpose: work. As the Work Truck (WT) trim, this Sierra skips the flash in favour of durability, with the legendary 6.6L Duramax diesel engine and Allison automatic transmission underneath — a combination diesel truck owners still chase today for its reliability and towing muscle. With 4x4 capability, a locking rear differential, and heavy-duty suspension, this truck is ready for job sites, trailers, and everything in between.

This is the truck for the tradesperson, farmer, or diesel enthusiast who wants proven power without paying for unnecessary bells and whistles. The extended cab and long box combination offers maximum cargo and towing versatility, whether you're hauling equipment, livestock, or a fifth wheel. Cloth bench seating and straightforward controls mean less to fix and more truck for your money.

For Ontario buyers, a 2007 Duramax with this kind of proven drivetrain is a smart buy — these engines are known to run well past 300,000km with proper maintenance, making this an excellent value entry into diesel ownership. London and area buyers looking for serious towing capacity without a new-truck price tag should take a hard look at this Sierra 2500HD.

At Silverstone Motors, we know these older heavy-duty diesels don't come around often in this condition and configuration. This is a truck built to work, not sit in a showroom — and that's exactly why it still has so much life left in it.

Features & Equipment

“If you want a truck that can actually work for a living, this Sierra 2500HD Duramax is it. I'd put this drivetrain up against anything else on the road for reliability, and at this price, it's a smart way into diesel ownership without breaking the bank.”

— Kal