2027 Chevy Silverado 2500HD & 3500HD: 8.3L Duramax, Pricing, Release Date
2027 Silverado HD · Ordering Now · Production November 2026 · Okarche, OK2027 Chevy Silverado 2500HD and 3500HD: the 8.3L Duramax, what it costs, and when you can get one
Quick answer The 2027 Silverado HD is the biggest engine story GM has had in years: an all-new 8.3L Duramax turbo-diesel V8 with 555 hp and 1,230 lb-ft replaces the 6.6L Duramax, the standard 6.6L gas V8 moves to 412 hp and 472 lb-ft, both run an Allison 10-speed, and maximum towing rises to 38,000 lb. 2500HD pricing starts at $47,200 for a WT and runs to $75,400 for a High Country before the $2,795 destination charge; the diesel is an $11,400 option on every trim. Production starts in November 2026 and Carter is taking 2027 HD orders now. 3500HD pricing hasn’t been published yet; the trailering ratings from GM’s October 9 order guide are on this page. Carter takes factory orders, charges no doc fee, and delivers anywhere in Oklahoma.
What’s new for 2027
8.3L Duramax turbo-diesel V8
555 hp and 1,230 lb-ft, built at GM’s DMAX plant in Brookville, Ohio. It replaces the 6.6L L5P (470 hp, 975 lb-ft) outright rather than sitting beside it. Diesel exhaust brake and grade braking are part of the package. Option price: $11,400 on any trim.
6.6L gas V8, more of it
The standard engine is updated to 412 hp and 472 lb-ft, from 401 and 464. GM calls that the most standard torque in the class. It stays naturally aspirated and stays the payload champ.
Allison 10-speed on both
The 10-speed automatic carries the Allison name on both engines for 2027, with tow/haul logic that also tightens steering damping when you’re hooked up.
Electric power steering and eBoost brakes
Both are firsts in the class on an HD pickup. EPS is what makes the steering-damping trick in tow/haul possible; eBoost is an electric brake booster that doesn’t depend on engine vacuum.
Towing and payload
Up to 38,000 lb of towing with the diesel (up 2,000 lb) and 19,000 lb with the gas; the chart by cab and axle is below and the full towing guide covers every configuration. Payload up to 6,990 lb on the gas truck and 6,170 lb on the diesel. Up to 14 camera views, Trailer Side Blind Zone Alert and the in-vehicle trailering app are available.
Cab tech
13.4-inch center touchscreen and 12.3-inch driver display, Google built-in available with Gemini as the assistant, adaptive cruise, and OnStar Basics standard for eight years.
Trail Boss on the Custom
The Trail Boss package (Z71 twin-tube shocks, 20-inch wheels with BFGoodrich All-Terrains, Autotrac two-speed transfer case) comes to the Custom trim for the first time.
ZR2
1.5-inch factory lift, larger Multimatic DSSV dampers, rear e-locker and 35-inch mud-terrain tires. The 8.3L is available on it like every other trim.
2027 Silverado 2500HD pricing by trim
Starting MSRPs as announced by GM on October 6, 2026. Every trim is $1,000 to $1,500 higher than its 2026 equivalent. The third column adds the $2,795 destination charge; the fourth adds the $11,400 Duramax. These are starting points for the base cab and bed of each trim, before options, dealer discount or GM incentives.
| Trim | Base configuration | MSRP | With destination | With 8.3L Duramax |
|---|---|---|---|---|
| WT | Regular cab long bed, 2WD | $47,200 | $49,995 | $61,395 |
| Custom | Double cab standard bed, 2WD | $50,500 | $53,295 | $64,695 |
| LT | Regular cab long bed, 4WD | $53,900 | $56,695 | $68,095 |
| LTZ | Crew cab standard bed, 4WD | $64,900 | $67,695 | $79,095 |
| ZR2 | Crew cab standard bed, 4WD | $74,900 | $77,695 | $89,095 |
| High Country | Crew cab standard bed, 4WD | $75,400 | $78,195 | $89,595 |
3500HD pricing had not been published as of October 14, 2026. The 3500HD has always been priced above the matching 2500HD, with dual-rear-wheel above single; we’ll post GM’s numbers the day they land. Carter’s price on any ordered truck is the number we quote at order, with no documentation fee and no addendum.
Gas or diesel: the $11,400 question
| 6.6L gas V8 (standard) | 8.3L Duramax (+$11,400) | |
|---|---|---|
| Output | 412 hp / 472 lb-ft | 555 hp / 1,230 lb-ft |
| Max towing | 19,000 lb | 38,000 lb |
| Max payload | 6,990 lb | 6,170 lb |
| Transmission | Allison 10-speed | Allison 10-speed with exhaust brake |
| Best for | Bed loads, service bodies, flatbeds, trailers under about 15,000 lb, lower purchase and maintenance cost | Gooseneck and fifth-wheel, livestock and equipment trailers, long grades, anyone who tows heavy every week |
The full Duramax-vs-gas breakdown works the $11,400 against fuel, resale and the jobs each engine fits. The gas truck carries more because the diesel engine weighs several hundred pounds more, and that weight comes straight out of payload. For a service body or flatbed that lives on job sites, the gas V8 is usually the right answer. For a bale bed pulling a stock trailer or a gooseneck equipment trailer, the 8.3L’s 1,230 lb-ft is the whole point. We’ll price the same truck both ways so the payment difference is in front of you.
2027 Silverado HD trailering ratings by configuration
These are GM’s maximum trailer weights from the 2027 order guides published October 9, 2026, for the configurations we sell the most of. CC is 2WD, CK is 4WD. Gas trucks use a 3.73 axle; diesels use 3.42. “NHT” is the Max Trailering Package: 3500HD frame, 3500HD leaf springs, 12-inch rear axle and 3500HD shocks on a 2500HD, and on the 3500HD it also adds the heavy-duty front springs and gooseneck prep. Ratings assume a standard truck with driver; people, options and cargo come off the number. Every cab, bed and hitch is on the full towing chart, and the gooseneck and fifth-wheel page covers pin weight and the Z6A prep package.
| Configuration | Engine | Ball hitch | Fifth-wheel | Gooseneck |
|---|---|---|---|---|
| 2500HD Crew Cab long bed 4WD (CK20943) | 6.6L gas | 16,000 lb | 18,000 lb | 18,200 lb |
| 8.3L Duramax | 18,500 lb | 19,500 lb | 19,600 lb | |
| 8.3L Duramax + NHT | 20,000 lb | 22,100 lb | 22,300 lb | |
| 2500HD Regular Cab long bed 2WD (CC20903) | 6.6L gas | 14,500 lb | 18,900 lb | 19,000 lb |
| 8.3L Duramax + NHT | 14,500 lb | 23,000 lb | 23,200 lb | |
| 3500HD Crew Cab long bed 4WD, single rear wheel (CK30943 SRW) | 6.6L gas | 16,000 lb | 18,000 lb | 18,100 lb |
| 8.3L Duramax | 20,000 lb | 23,000 lb | 23,200 lb | |
| 3500HD Crew Cab long bed 4WD, dual rear wheel (CK30943 DRW) | 6.6L gas | 17,600 lb | 17,700 lb | 17,800 lb |
| 8.3L Duramax | 20,000 lb | 31,700 lb | 31,800 lb | |
| 3500HD Regular Cab long bed 4WD, dual rear wheel (CK30903 DRW) | 8.3L Duramax | 20,000 lb | 34,300 lb | 34,400 lb |
| 3500HD Regular Cab long bed 2WD, dual rear wheel (CC30903 DRW) | 8.3L Duramax | 20,000 lb | 34,600 lb | 34,700 lb |
| 8.3L Duramax + NHT | 20,000 lb | 37,000 lb | 38,000 lb |
Gross combination weight ratings top out at 31,000 lb on a 2500HD (diesel with NHT) and 46,500 lb on a 3500HD (diesel with NHT); a 3500HD crew cab dually diesel is 41,000 lb. Ball-hitch ratings are capped at 20,000 lb on every diesel HD regardless of cab, so anything heavier means a gooseneck or fifth-wheel, and our bale bed and flatbed installs next door are built with the ball in the bed for exactly that.
Where the 8.3L and the Max Trailering Package are actually orderable
- 2500HD: the 8.3L Duramax is available on all six trims, on 4WD cabs and the 2WD Regular Cab; 2WD Double Cab and 2WD Crew Cab trucks are gas-only. On a Work Truck it requires the WT Convenience Package; on a Custom it requires the Custom Value Package and 4WD. The NHT Max Trailering Package requires the diesel, the Z6A gooseneck/fifth-wheel prep and 18- or 20-inch wheels, is not offered on Double Cab or ZR2, and cannot be combined with the 10,000 lb lowered-GVWR option.
- 3500HD pickup: the 8.3L is available on WT, LT, LTZ and High Country. 2WD Double Cab and 2WD Crew Cab pickups are gas-only; a 2WD diesel 3500HD is a Regular Cab. Single-rear-wheel GVWRs run 11,250 to 12,700 lb; duallies are 14,000 lb. NHT on the 3500HD is Work Truck, 2WD Regular Cab dually only.
- 3500HD chassis cab: WT and LT, 14,000 lb GVWR standard, Regular Cab in 60-inch and 84-inch cab-to-axle (146 and 171-inch wheelbase) and Crew Cab dually at 60-inch CA (177-inch wheelbase). The 8.3L is available on both trims and brings a 63.5-gallon front-and-rear fuel tank option. This is the truck that goes next door for a service body or flatbed.
2500HD or 3500HD?
Same cabs, same engines, same transmission. The 3500HD adds rear-axle and spring capacity, the option of dual rear wheels, and the big trailering numbers: the 38,000 lb maximum is a 3500HD Regular Cab dually on a gooseneck, and a crew cab dually diesel still pulls 31,800 lb on a gooseneck against a 2500HD crew cab diesel’s 19,600 (22,300 with the Max Trailering Package). The full 2500HD-vs-3500HD comparison goes through GVWR, dually and pin weight; the short version: pick the 2500HD if your heaviest trailer is a two-horse, a car hauler or a 10,000 lb equipment trailer and you want it to ride like a truck the rest of the week. Pick the 3500HD if you pull a fifth-wheel camper, a four-horse with living quarters or a gooseneck flatbed with a skid steer on it, or if the truck is getting a body that weighs 1,000 lb before you load it. Our 2027 vs. 2026 what’s-new page has the order-guide-level detail on packages and RPO changes.
Timing: wait for the 2027, or buy a 2026 now?
GM has production scheduled to start in November 2026. That means the first 2027 HDs reach Oklahoma dealers around the turn of the year, and a truck you order now follows on GM’s build schedule, typically a few months. Two honest ways to look at it:
- Wait if the 8.3L is why you’re buying. There is no 2026 equivalent; the L5P is 85 hp and 255 lb-ft behind it and the 2026 tow ratings are 2,000 lb lower at the top.
- Buy a 2026 now if you need the truck this fall or you want the gas V8. The 2027 gas gain is 11 hp. The 2026 HDs on our lot are discounted under MSRP, and GM’s November program adds $1,000 customer cash on every Duramax plus $4,500 Red Tag bonus cash on Duramax LT and High Country ($3,000 on LTZ). Details and in-stock examples: Silverado HD specials.
How to order a 2027 Silverado HD from Carter
Tell us the job
Trailer weight and hitch type, bed or body you need, gas or diesel, 2WD or 4WD, cab and bed length. Call or text 405-546-1147. We’ll spec it from the order guide and tell you honestly if a 2026 on the lot already fits.
Get the number
Price at order is the price at delivery. No doc fee, no addendum, GM incentives applied if any are running when the truck arrives. If it’s a business purchase, commercial truck financing and Section 179 paperwork are handled here.
Body, if you need one
Chassis cabs and pickups can go straight next door to OEM Truck Equipment for a CM flatbed, Stahl service body or DewEze bale bed, installed before title so it’s one truck, one loan, one warranty conversation.
Delivery
Free anywhere in Oklahoma. We bring the truck, the paperwork and a walk-through of the trailering tech; you keep working.
Frequently asked questions
When does the 2027 Chevy Silverado 2500HD come out?
GM has production scheduled to start in November 2026 and lists the truck as available late 2026. Realistically, the first retail units reach Oklahoma dealers in the weeks after that, with ordered trucks following. Carter is taking 2027 Silverado HD factory orders now; call 405-546-1147 and we’ll spec it from the order guide and give you a build-date estimate.
How much does the 2027 Silverado 2500HD cost?
Starting MSRPs by trim: WT $47,200, Custom $50,500, LT $53,900, LTZ $64,900, ZR2 $74,900, High Country $75,400, before the $2,795 destination charge. Every trim is $1,000 to $1,500 higher than its 2026 equivalent. The 8.3L Duramax adds $11,400 on any trim, so a diesel WT starts at $58,600 before destination and a diesel High Country at $86,800.
What engine is in the 2027 Silverado HD?
Two. The standard 6.6L gas V8 is updated to 412 hp and 472 lb-ft (up from 401 and 464). The new option is an 8.3L Duramax turbo-diesel V8 making 555 hp and 1,230 lb-ft, replacing the 6.6L Duramax (470 hp, 975 lb-ft) outright. Both use an Allison 10-speed automatic.
How much can the 2027 Silverado HD tow?
Up to 38,000 lb with the 8.3L Duramax and up to 19,000 lb with the 6.6L gas. Per GM’s October 9, 2026 order guide, the 38,000 lb figure is a 3500HD Regular Cab dually with the diesel, the Max Trailering Package and a gooseneck hitch. The trucks most Oklahoma buyers order rate lower: a 3500HD crew cab 4WD dually with the diesel is 31,800 lb gooseneck and 20,000 lb on the ball; a 2500HD crew cab 4WD diesel is 19,600 lb gooseneck, or 22,300 lb with the Max Trailering Package. The full chart is on this page.
Which 2027 Silverado HD tows 38,000 lb?
Only one configuration: the 3500HD Work Truck Regular Cab long bed, 2WD, dual rear wheels, 8.3L Duramax, with the NHT Max Trailering Package (which is WT-only on the 3500HD and requires the 14,000 lb GVWR and 18-inch forged wheels), pulling a gooseneck. The same truck is 37,000 lb on a fifth-wheel and 20,000 lb on a ball hitch. Without NHT, a 3500HD dually diesel tops out at 34,700 lb gooseneck.
Can I get the 8.3L Duramax on a 2WD Silverado HD?
Only on a Regular Cab. GM’s trailering tables list the diesel on 2WD Regular Cab 2500HD and 3500HD pickups and on every 4WD cab, but not on 2WD Double Cab or 2WD Crew Cab trucks, which are gas-only. If you want a diesel crew cab, it is a 4WD truck.
What is the payload of the 2027 Silverado HD?
GM lists up to 6,990 lb with the 6.6L gas and up to 6,170 lb with the 8.3L Duramax. The gas truck carries more because the diesel engine itself weighs several hundred pounds more. If your work is bed weight rather than trailer weight, the gas HD is the one to look at.
Is the 8.3L Duramax worth $11,400 over the gas V8?
If you tow heavy regularly, yes: 143 more horsepower, 758 lb-ft more torque, a diesel exhaust brake, and roughly double the maximum tow rating. If you mostly haul in the bed, run short trips, or tow under about 15,000 lb occasionally, the 412 hp gas V8 does the job for $11,400 less and carries more payload. Diesel also costs more to maintain. We’ll price both on the same truck so you can see the payment difference.
Should I wait for the 2027 or buy a 2026 Silverado HD now?
Wait if the 8.3L Duramax is the reason you’re buying; nothing on a 2026 matches it. Buy now if you need the truck this fall, want the 6.6L gas (the 2027 gain is 11 hp), or want GM’s current cash: through November 30 there is $1,000 customer cash on every 2026 Duramax plus $4,500 Red Tag bonus cash on Duramax LT and High Country ($3,000 on LTZ), on trucks already discounted under MSRP. The HD specials page has the current program and in-stock examples.
Can I order a 2027 Silverado HD from Carter Chevrolet?
Yes. We place factory orders for 2500HD and 3500HD pickups and chassis cabs, including trucks that go next door to OEM Truck Equipment for a flatbed, service body or bale bed before delivery. No doc fee, no addendum, and the price we quote at order is the price. We deliver anywhere in Oklahoma.
Related
2027 Silverado HD towing capacity, every configuration · 8.3L Duramax vs. 6.6L gas · 2500HD vs. 3500HD · Gooseneck and fifth-wheel towing · 2027 vs. 2026 Silverado HD: what changed · Silverado HD specials · Chevy trucks near OKC · Flatbed trucks · Service body trucks · DewEze bale beds · Commercial truck financing
Specifications, pricing and timing are General Motors’ published figures as of October 14, 2026 and are subject to change before and after launch; towing and payload are maximums for specific configurations and will differ on the truck you order. Trailering ratings are from GM’s 2027 2500HD, 3500HD and 3500HD chassis cab order guides published October 9, 2026, and apply to a standard-equipped truck; 3500HD pricing will be added when GM publishes it. GM incentives referenced are GM programs valid through November 30, 2026. Carter Chevrolet charges no documentation fee and no dealer addendum.
Want to be first in line for an 8.3L?
Tell us the configuration and we’ll quote it, place the order today, and keep you posted on the build date. Or come look at a 2026 Duramax on the lot this week.