1999 GMC Sierra 2500 HD SLT 2 door Truck (Extended Cab)

Learn about the GMC Sierra 2500 full-size pickup truck. See the engine specifications, gas mileage, price, and MSRP. Research GMC HD SLT warranty features and GM Financial lending options.

Looking for a GMC Sierra 2500?

Find your perfect ride. Choose from thousands of vehicles. Your Sierra 2500 HD SLT may be waiting for you.

Home » Vehicles » 1999 GMC Sierra 2500 HD SLT 3 Door Extended Cab LB 6.0L 8-Cylinder naturally aspired 4A

The products and offers that appear on the website are from respective partners, companies, and third-party advertisers from which we receive compensation. This compensation may impact how and where products appear on this site including the order in which they appear. This site does not include all financial products or companies or all available product offers. Learn more about our partners and how we make money

Details About the 1999 GMC Sierra 2500 truck (extended cab)

The 1999 GMC Sierra 2500 is manufactured under the GMC car brand name. It is classified as a full-size pickup truck and makes use of a truck (extended cab) body. This 2 door truck (extended cab) has rear wheel drive with a 4-speed automatic transmission. The GMC Sierra 2500 is mainly domestic from the country of United States. The GMC automobile line is a subsidiary vehicle manufacturer held by General Motors (General Motors Company).

Thinking about changing vehicles?

Looking for a new car? Check out GMC Sierra 2500 truck (extended cab) listings. Browse extensive inventories to find the vehicle that is right for you!

1999 GMC Sierra 2500 HD SLT 3 Door Extended Cab LB 6.0L 8-Cylinder naturally aspired 4A 1

Introducing the 1999 GMC Sierra 2500 HD SLT

The GMC Sierra 2500 comes in several trim levels and packages such as the 1999 GMC Sierra 2500 HD SLT 3 Door Extended Cab LB (6.0L 8-Cylinder naturally aspired 4A). This variation of the Sierra 2500 truck (extended cab) sports the HD SLT 3 door Extended Cab LB with a 6.0L 8-cylinder naturally aspired 4A on the GMC Sierra 2500 platform. The Sierra 2500 HD SLT trim may feature automobile enhancement packages depending on the origin of the motor vehicle and the production generation.

GMC Sierra 2500 HD SLT Prices and MSRP

Are you excited to have a 1999 GMC Sierra 2500 HD SLT? The initial MSRP is quoted at $ and related Kelly Blue Book values are generally lower. Used valuations are calculated with the year, make, model, and other details. GMC Sierra 2500 appraisals can increase outside of these value ranges due to factors like increased demand, limited supply, and auto industry shortages. For example in 2021, car, truck, and SUV asking prices and related motor vehicle equity rose due to computer chip scarcities and supply chain limitations. This situation resulted in tensions on the auto marketplace with older used quotes passing up the equity highs previously just seen by brand-new vehicle sales.


Trim & Style: HD SLT 3 door Extended Cab LB with a 6.0L 8-cylinder naturally aspired 4A

Made In: United States

Sierra 2500 HD SLT Performance Specifications and Engine

An automobile’s power, torque, and performance are important for understanding the operational limitations, and they matter more sometimes than others. If you are towing a load or enclosed trailer with a truck. The performance specs and capacities of your engine hauling package matters a lot. If you are taking your sports car out for a track day, your quarter mile time, horsepower, and engine can result in more bragging rights. On the other hand, if you are searching for a smaller economical car or sedan to drive to work as a daily driver, you might not care what is under the hood as long as it is trustworthy and the engine runs well.

GMC Automobile Additional Info

The 1999 GMC Sierra 2500 may come along with a number of different performance bundles and engine options. This specific GMC automobile includes the 6.0 gas engine with a rear wheel drive drivetrain.

Engine:Horsepower: 300
Doors: 2 doorTransmission: 4-speed automatic
Drive Type: rear wheel driveFuel: regular unleaded
MSRP: $Manufactured: United States
Data comes from dealer network APIs but is not endorsed or certified by any dealer.
1999 GMC Sierra 2500 HD SLT 3 Door Extended Cab LB 6.0L 8-Cylinder naturally aspired 4A 2

Fuel Usage and Gas Mileage

Understanding gas mileage and fuel economy are essential points when it pertains to purchasing a GMC Sierra 2500. Other than the sticker cost of the vehicle, the fuel expense is typically the next most expensive factor when it comes down to car ownership. The next most pricey aspect is complying with the recommended maintenance schedule and performing preventive maintenance.

The U.S. Environmental Protection Agency or EPA provides assessments into gas mileage (MPG) and the amount of miles an automobile can effectively drive per a gallon of fuel consumed on city streets and on the highway. MPG is dependent on GMC Sierra 2500 engine type, performance, operation elevation, and other things like aftermarket adjustments, but it supplies a great standard for fuel use.

For the 1999 GMC Sierra 2500, the EPA predicts drivers will get around 11/15 MPG for operating the vehicle on city streets and during driving on the highway. These valuations are different given that city driving involves driving on town streets, stopping at stop lights, pausing at stop signs, waiting at crosswalks for pedestrians, and other things which make the GMC Sierra 2500 to start and stop more regularly. On the highway, the GMC Sierra 2500’s engine and fuel effectiveness are extended, allowing them to achieve a higher MPG score.

Fuel Usage Comparisons

Check out how your existing automobile compares to the fuel effectiveness of the 1999 GMC Sierra 2500. Use the gas mileage difference calculator to see how many more miles you could drive and costs related to fuel. Can you save gas money by driving this GMC Sierra 2500 or will it cost you more in gas to drive?

MPG: 11/15 MPG (city/Highway)

Compare Other vehicle MPGs

Find Financing for Your Sierra 2500 HD SLT

Finding financing for your 1999 GMC Sierra 2500 truck (extended cab) can be an excellent way to get into the car or truck of your dreams while paying it off over the course of several years by making monthly payments. Determine the amount of money you will need to finance by finding the distinction in between the cost of your new GMC Sierra 2500 and the values of your down payment and any trade-in credit from your old car or truck.

This will provide you with the total amount you will be required to finance your 1999 GMC Sierra 2500. Consult lending institutions to see quoted financing offers. These deals will be based on your credit ratings, client profile, and credit history. It is excellent to compare funding rates from numerous loan providers (examining deals with 3-4 lending institutions is great). Doubling examining the contending offers will help you get the best financing deal possible on your GMC vehicle.

To complete your Sierra 2500 financing process, you need to do several things consisting of having a qualifying credit rating, meeting lender guidelines, and meeting motor vehicle financing requirements. When attempting to buy a recent make vehicle, make an effort to have a credit rating of over 600 (non-prime grouping). Credit ratings in the 500s (subprime category) might be acceptable for slightly older used car or truck financing. This is very important given that your rating can certainly impact your given lending rates throughout the financing process.

Other loan provider requirements involve making a minimum amount of money monthly and meeting residency conditions by living in an area the loan provider services for a set amount of time, like several months. In the non-prime credit bracket of 601 to 660 ratings, loan providers might require a regular monthly earnings of $1,600 to $2,000. Subprime lenders in the 501 to 600 credit report usually have comparable requirements. Lastly your vehicle should meet general auto financing requirements like being newer than 10 years old and having less than 100,000 miles with positive vehicle equity.

GMC Sierra 2500 Refinancing

Refinance your GMC Sierra 2500 HD SLT truck (extended cab). Learn how you can save money by adjusting your current loan.

Find GMC Sierra 2500 Insurance

Learn about insurance and see coverage options for your GMC Sierra 2500. Bundling your insurance can save you money.

Information About GM Financial

GM Financial is GMC’s in-house monetary support services division. They offer car buyers many finance choices if you are considering buying a newer automobile from one of the auto brands car dealerships. The promotions and incentives can consist of financing deals like 0% APR for 60 months and 6.9% stand alone APR for 84 months (based on the down payment). GM Financial can even provide leasing deals and benefits like 10,500 annual miles for 39 months with a set dollar amount due at finalizing.

Funding Your Sierra 2500 HD SLT

It is very important to be aware of how much you can afford to pay for your new 1999 GMC Sierra 2500. This is very important not merely for vehicle budgeting when tracking your personal expenses but also for comparing finance offers from various lenders. Checking loan numbers with a finance calculator is among the fastest ways to rapidly see your expected vehicle payment.

What is the Monthly Payment to Buy a GMC Sierra 2500 HD SLT?

Wondering how much money it would be to take out a car loan on a 1999 GMC Sierra 2500? Here is an estimate you can use to begin your research! The most accurate answer to your automobile payment estimate question depends on several things. The regular monthly car payment on a GMC Sierra 2500 HD SLT is calculated by your down payment, vehicle loan rate of interest, term, credit history, trade in-value, and other details. Things like the sales tax on the Sierra 2500 HD SLT also must be thought about. Therefore, since the manufacturer’s suggested retail price or MSRP is $, the average motor vehicle payment for a new Sierra 2500 may be about $-.

This is predicted by calculating the MSRP and subtracting a 10% deposit alongside a vehicle loan lending rate of 5% throughout a term of 48 months. Keep in mind these factors will likely differ based on your qualifying loan rates, annual percentage rate or APR, and credit union or bank offers. Keep in mind this is what it could cost if you bought the 1999 GMC Sierra 2500 “new” according to the MSRP. With used motor vehicles, there is a significant probability the month-to-month auto payment will be significantly varied. You can check more price quotes with varying percentages using a calculator.

Estimated Monthly Payment


Involved Payment Factors

Down Payment: 10% (estimated payment)
Loan Interest Rate: 5% (average rate)
Car Loan Term: 72 months (varies by offer)

Note: This estimated payment does not include other factors and costs like sales tax which would normally be included in actual payment estimate.

About 1999 GMC Sierra 2500 Refinancing

Refinancing your GMC Sierra 2500 is also an option to look into after you have already made a number of your preliminary monthly auto payments. The primary lenders you initially funded through frequently have rewards and offers which terminate or are front-weighted. Special offers like cash back refunds and 0% APR financing discount rates might start losing their efficiency or value after 6 to 12 car or truck payments.

If your personal financial scenario has changed because you purchased your GMC Sierra 2500 or if your starting term and interest rate are no longer advantageous to you, think of refinancing. You can normally save money on your month-to-month motor vehicle payments by refinancing your vehicle loan.

GMC Sierra 2500 Auto Insurance Plans

Maintaining a vehicle insurance policy insurance for your GMC Sierra 2500 is very important. Picking the right insurance coverage for you can help cover costs and damages connected with motor vehicle crashes, automobile theft, and other damage to your vehicle. Not only will it assist you in repairing the damage from an automobile collision or striking a stationary object, but holding valid insurance coverage is frequently a legal requirement to drive on public roadways in many states and counties in the US. The very best vehicle insurance plans and associated coverage include comprehensive collision coverage which helps you repair accident-related damage to your GMC truck (extended cab) and also cover non accident-related damage from other situations things like bad weather conditions, storms, wildland fires, vandalism, and wild animal impacts in addition to automobile crashes. Your insurance policy can additionally help you repair the 6.0L engine in your truck (extended cab) along with other mechanical components. The amount you spend for the policy coverage can change and is often based on the year of manufacture of your automobile. If you drive the 1999 HD SLT, this will be factored into your month-to-month insurance payments. Discover more about insurance and safeguard your GMC Sierra 2500 HD SLT 3 door Extended Cab LB with a 6.0L 8-cylinder naturally aspired 4A.

1999 GMC Sierra 2500 HD SLT 3 Door Extended Cab LB 6.0L 8-Cylinder naturally aspired 4A 3

Find Out Where to Buy a GMC Sierra 2500 HD SLT

There are a lot of things to mull over when it comes time to purchase a car. You need to locate the ideal make and model that fits your demands along with managing an auto payment that fits into your budget. There are a lot of options out there for looking at brand-new and used vehicle stock, so it can be hard to know where to start your vehicle purchasing journey. Try Carvana.

Shop for a GMC Sierra 2500

Sierra 2500 HD SLT Warranties

Service Warranty and Maintenance Coverage

We commonly think of branded factory service warranties when it comes to purchasing the optimal service for your brand-new automobile. These factory manufacturer’s warranties feature standard protections like a restricted 3 year duration or 36,000 mile bumper-to-bumper guarantee and a 5 year in duration or 60,000 mile powertrain service warranty. These annual durations start from the original sale date by the original car’s owner.

Extra manufacturer vehicle service warranties are also offered depending upon the engine type of the vehicle. For instance, new cars or trucks with a diesel motor can feature a manufacturer 5 year duration or 100,000 mile powertrain warranty. Hybrid automobiles and electric vehicles (EVs) often come with unique coverage like a 8 year or 100,000 mile warranty.

There are also extended vehicle service plans (VSPs), Certified pre-owned (CPO) coverage, and additional guarantee coverage alternatives offered beyond the manufacturers original factory programs. VSPs provide maintenance service plans with extra protection for a vehicle’s parts in case your motor vehicle experiences a disastrous mechanical breakdown or failure. These are great alternatives to think about when buying a used motor vehicle.

CPO service warranties commonly add coverage for extra years limited by either time or mileage like 2 years or 80,000 miles on the motor vehicle. Cars, trucks, and SUVs that are sold with CPO statuses receive a meticulous pre-owned examination by professional professionals which adds additional warranty years. CPO vehicles generally cost more than equivalent used vehicles but may be worth it for having the assurance that the vehicle you are shopping for is mechanically ok.

Other protection options include prepaid vehicle upkeep programs from car dealerships. These programs protect the components, services, and labor that belong to the recommended producer’s upkeep schedule. You will find these checks and associated mileages detailed in the car or truck owner’s guide.

About Sierra 2500 Warranty Details

Factory Warranty: A factory service warranty is what you might think of when the idea of car warranties are brought up. These types of service warranties frequently are included when buying new trucks, SUVs, or cars and are among the simplest and most affordable methods to look after your vehicle– warranty wise considering that the new vehicle will probably cost more than a used one leading to less affordability. The factory warranty is similar to a manufacturer’s warranty and is a guarantee from the automaker. Under the service warranty coverage, the car company will replace any damaged parts and/or fix any damaged areas caused by manufacturing issues, defective components, and flawed workmanship with relatively no cost to you as the automobile owner. The warranty guarantees the automobile will be brought back to great operating condition.

Drivetrain Warranty: A drivetrain warranty covers the parts, parts, and systems which move or “drive” the vehicle forward. A drivetrain warranty is also another term for a powertrain service warranty and may cover similar elements depending on the producer’s descriptions and warranty terms.

Roadside Warranty: A roadside warranty helps you when you are stranded or are broken down when driving. This service warranty for the GMC Sierra 2500 HD SLT consists of standard support services like towing, blowout fixing or replacement, dead battery assistance and jumpstarts, lockout help, fluid and fuel transport and delivery, and other similar services. A roadside warranty resembles roadside assistance, however it is included with the new automobile from the automaker and not an add-on item through insurance coverage or a vehicle service plan or VSP.

Rust & Corrosion Warranty: A rust and corrosion warranty helps to protect the body, materials, and frame of the car. Car manufacturers include this warranty with new cars and trucks to help fix damage triggered by caustic liquids, substances, and materials.

GMC Sierra 2500 Factory Warranty Coverage

Factory Warranty:Drive Train Warranty:
Roadside Warranty:Rust & Corrosion Warranty:
Data comes from dealer network APIs but is not endorsed or certified by any dealer.

GMC Sierra 2500 HD SLT Specs

In order to appeal to a greater variety of buyers who are interested in the 1999 GMC Sierra 2500 HD SLT, a few different trim levels are provided. Many car corporations deliver various alternatives for their vehicles. This includes General Motors (General Motors Company) who makes the Sierra 2500 model. These choices can include things like assorted paint colors, wheel dimensions, or packages that include features like a sunroof or navigation system. Offering these choices allows producers to develop interest in different types of car buyers and also helps them to sell a large volume of cars.

These alternatives permit customers to select an automobile which fulfills their needs and can include different functions that they might desire in their vehicle. Some auto makers may offer things like a variety of various engines, trim lines, and performance or sport packages to choose from, while others might offer a wide range of exterior color options or interior trim levels or colors. The options that are offered will vary between automakers, makes, and models, so do your research when you are trying to find an automobile with certain traits like heated seats or 3rd occupant seating.

By making the effort to research the different options that are offered, you, as the customer, can ensure that you are getting exactly what you want in your new vehicle. This truck (extended cab) by Sierra 2500 comes outfitted from the auto manufacturer with several basic configurations and options. They consist of options like the and other typical vehicle features.

1999 GMC Sierra 2500 HD SLT 3 Door Extended Cab LB 6.0L 8-Cylinder naturally aspired 4A 4

GMC Sierra 2500 Frequently Asked Questions

Have concerns about the GMC Sierra 2500 HD SLT? Discover answers to commonly asked questions. It is essential to know what you are getting into with your vehicle purchase and research the specific details. Check out the auto specs and be aware of how your car payment on a motor vehicle can affect your finances. These questions can help you understand the capabilities of the vehicle along with MPGs, weight, horsepower, and engine capabilities.

What is a GMC Sierra 2500 HD SLT?

The GMC Sierra 2500 is a vehicle line produced by General Motors (General Motors Company). The HD SLT is a specific package of the GMC Sierra 2500 lineup. The vehicle is categorized as a full-size pickup truck.

How much does a GMC Sierra 2500 HD SLT cost?

The GMC Sierra 2500 HD SLT costs around $.

What is the car payment to buy a GMC Sierra 2500 HD SLT?

The monthly car payment on a GMC Sierra 2500 HD SLT depends on your down payment, car loan interest rate, term, credit score, trade in-value, and other factors. Things like sales tax on the Sierra 2500 HD SLT also need to be considered. Since the MSRP is $, the average car payment for a new Sierra 2500 could be around $-. This can be estimated by using the MSRP minus a 10% down payment with a auto loan interest rate of 5% over a term of 48 months. Keep in mind these factors will vary depending on your qualifying loan rates and lending offers. You can check additional estimates with varying numbers by using a car payment calculator.

Can I lease a GMC Sierra 2500 HD SLT?

You may be able to lease a GMC Sierra 2500 HD SLT through an auto loan lender or financial institution.

Can I refinance my GMC Sierra 2500 HD SLT?

You may be able to refinance your GMC Sierra 2500 HD SLT depending on your credit score and financial situation. To learn more about lenders who offer vehicle refinancing and car loans, check out the best auto refinance companies.

Where can I buy a GMC Sierra 2500 HD SLT?

Try searching car dealers like Carvana for a GMC Sierra 2500 HD SLT. They often have good deals on recent vehicles and may also have a similar GMC Sierra 2500 in their inventory.

How far does the GMC Sierra 2500 HD SLT go on a single tank of gas?

The GMC Sierra 2500 HD SLT can usually travel around 374.0/510.0 miles miles on a full tank of gas. This range is dependent on driving conditions, vehicle maintenance, and other roadway factors.

Does the GMC Sierra 2500 have good gas mileage?

GMC Sierra 2500 gets an EPA estimated 11/15 MPG miles per gallon (MPG) on the city/highway roads. The combined MPG is 12 MPG. Understanding if this is a good gas mileage depends on what you are comparing the vehicle to. You can use our Gas Mileage Comparison calculator to see MPG estimates between vehicles with different MPG ratings along with destinations.

What kind of gas mileage does the GMC Sierra 2500 get?

The GMC Sierra 2500 gets 11/15 MPG (city/highway) MPG per the Environmental Protection Agency or EPA. The combined MPG rating is 12.

What type of gas does a GMC Sierra 2500 use?

The GMC Sierra 2500 uses the regular unleaded fuel type.

How much gas does the GMC Sierra 2500 gas tank hold?

The gas tank in the GMC Sierra 2500 holds 34 gallons of gas.

What type of vehicle is the GMC Sierra 2500 HD SLT?

The GMC Sierra 2500 with the HD SLT package is a full-size pickup truck.

What is the towing capacity of a GMC Sierra 2500?

The GMC Sierra 2500 has a towing capacity of 7,500 pounds.

How much horsepower does a GMC Sierra 2500 have?

The GMC Sierra 2500 has a horsepower rating of 300HP.

What kind of engine does a GMC Sierra 2500 HD SLT have?

The GMC Sierra 2500 HD SLT comes with a 6.0L V8 4-speed automatic engine.

What type of drivetrain does a GMC Sierra 2500 HD SLT have?

The GMC Sierra 2500 HD SLT features a rear wheel drive drivetrain.

What kind of transmission does a GMC Sierra 2500 come with?

The GMC Sierra 2500 HD SLT comes with a 4-speed automatic transmission.

Where is the GMC Sierra 2500 made?

The GMC Sierra 2500 HD SLT is made in the United States by General Motors (General Motors Company).

Is the GMC Sierra 2500 domestic or imported?

The GMC Sierra 2500 is a domestic vehicle.

What car company makes the GMC Sierra 2500 HD SLT?

The General Motors (General Motors Company) is the auto manufacturer which produces the GMC Sierra 2500 HD SLT.

How much does a GMC Sierra 2500 weigh?

The GMC Sierra 2500 HD SLT has a gross vehicle weight of 8,600 pounds and a curb weight of pounds. Learn more about how a vehicle is weighed.

What kind of warranty does the GMC Sierra 2500 come with?

The GMC Sierra 2500 HD SLT can come with a few warranties from the manufacturer including a drivetrain warranty, a roadside warranty, a anti-rust warranty, and a maintenance program.

Related Vehicles

Ready To Start The Refinance Process?

Start by connecting with lenders**.