2012 GMC Sierra 3500 HD Seasonal Accessories

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Keep Your 2012 GMC Sierra 3500 HD in Top Shape with Quality Seasonal Accessories

Whether you’re repairing or upgrading your Seasonal Accessory, using high-quality parts is key to keeping your 2012 GMC Sierra 3500 HD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Tents and Engine Heaters. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2012 GMC Sierra 3500 HD Seasonal Accessory at Advance Auto Parts is around $126.82, with a range that starts at $48.49 and goes up to $204.99. With 4 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Freeze Plug Heater, Full Size Standard Bed Truck Tent (6.5′), and Freeze Plug Diesel Heater start at just $101.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Seasonal Accessory, don’t forget to check out other key components like Covers and Storage and Cargo Products. At Advance Auto Parts, we’re here to help you keep your 2012 GMC Sierra 3500 HD in peak condition, inside and out.

Essential 2012 GMC Sierra 3500 HD Seasonal Accessories

Kat’s – Freeze Plug Diesel Heater (Part No.30517)

Freeze Plug Diesel Heater

from

$151.99
Freeze Plug Heater, also referred to as a block heater or frost plug heater is the most reliable and efficient way to pre-heat your engine. Operates by being directly submerged into coolant and heating the block. Requires mechanical ability to install.

Product Features:
  • Saves wear and tear on your engine
  • Simple installation directly into engine block
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Kat’s – Freeze Plug Heater (Part No.11484)

Freeze Plug Heater

from

$101.99
Freeze Plug Heater, also referred to as a block heater or frost plug heater is the most reliable and efficient way to pre-heat your engine. Operates by being directly submerged into coolant and heating the block. Requires mechanical ability to install.

Product Features:
  • Saves wear and tear on your engine
  • Simple installation directly into engine block
See More

Kat’s – Engine Heater Replacement Cord (Part No.28510)

Engine Heater Replacement Cord

from

$48.49
Kats Heater believes that quality is a basic requirement in the design, manufacture, and delivery of our products and services. Our quality policy is Total Customer Satisfaction in the delivery of products and services to consistently meet evolving customer expectations. We shall continuously pursue quality improvement programs that enable each employee to do his or her job right the first time and each time.

Product Features:
  • Engine heater replacement cord
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Kat’s – Circulation Tank Heater; Thermostatically Controlled (Part No.13150)

Circulation Tank Heater; Thermostatically Controlled

from

$83.99
KATS was created and developed as a truly effective product for cold weather and hard starting problems. Owners and operators of diesel and gas operated equipment have long known that delayed starts and slow starts mean big money losses in labor, maintenance and operating revenue. KATS Circulation Tank Heaters are designed to do one thing – Start engines FAST! KATS Circulation Tank Heaters are truly superior heavy duty patented products. This heater is thermostatically controlled 135-175 degrees. Our components are 100% made in the USA. Customers will find KATS Circulation Tank Heaters are unbeatable in pricing, quality and performance anywhere. KAT’S manufacturing quality control procedures assure you the very best anytime you install and operate a KAT’s system.

Product Features:
  • Available for all size engines
  • Equipped with check valve
  • Fits most liquid cooled engines
  • Installations easier and simpler
  • New lower radiator hose connectors
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Rightline Gear – Full Size Standard Bed Truck Tent (6.5′) (Part No.110730)

Full Size Standard Bed Truck Tent (6.5')

from

$204.99
The Rightline Gear Truck Tent lets you experience camping in a dry truck bed, up off the ground, without the complication of tarps, stakes, and guy lines. It features a floorless design that allows you to set up or take down the tent without removing your gear from the bed. The tent is outfitted with (2) gear pockets, a lantern hanging hook, glow-in-the-dark zipper pulls, and a sky view vent. Measure the inside of your truck bed with the tailgate up and check the Truck Tent Sizing Guide. Turn any spot into a comfortable campsite!

Product Features:
  • Floorless design allows for set up without removing gear from the bed
  • Protective heavy duty straps and nylon buckles, won’t damage truck’s finish
  • Color coded poles and pole pockets for quick and easy set up
  • Water resistant fabric with tape sealed seams (PU 2000mm)
  • Sky view vent for more light, ventilation, and sleeping under the stars
  • All truck tents sleep (2) adults
  • Includes: tent, rainfly, stuff sack, and sewn-in set up guide
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Most Popular Tent for 2012 GMC Sierra 3500 HDs

Enhance your 2012 GMC Sierra 3500 HD with this popular Tent we have in stock, for $204.99.

Rightline Gear – Full Size Standard Bed Truck Tent (6.5′) (Part No.110730)

Full Size Standard Bed Truck Tent (6.5')

from

$204.99
The Rightline Gear Truck Tent lets you experience camping in a dry truck bed, up off the ground, without the complication of tarps, stakes, and guy lines. It features a floorless design that allows you to set up or take down the tent without removing your gear from the bed. The tent is outfitted with (2) gear pockets, a lantern hanging hook, glow-in-the-dark zipper pulls, and a sky view vent. Measure the inside of your truck bed with the tailgate up and check the Truck Tent Sizing Guide. Turn any spot into a comfortable campsite!

Product Features:
  • Floorless design allows for set up without removing gear from the bed
  • Protective heavy duty straps and nylon buckles, won’t damage truck’s finish
  • Color coded poles and pole pockets for quick and easy set up
  • Water resistant fabric with tape sealed seams (PU 2000mm)
  • Sky view vent for more light, ventilation, and sleeping under the stars
  • All truck tents sleep (2) adults
  • Includes: tent, rainfly, stuff sack, and sewn-in set up guide
See More

Best-Selling 2012 GMC Sierra 3500 HD Engine Heaters

Upgrade your Sierra 3500 HD with one of our 3 best-selling Engine Heaters, earning an average 1 stars rating across 1 reviews.

Kat’s – Engine Heater Replacement Cord (Part No.28510)

Engine Heater Replacement Cord

from

$48.49
Kats Heater believes that quality is a basic requirement in the design, manufacture, and delivery of our products and services. Our quality policy is Total Customer Satisfaction in the delivery of products and services to consistently meet evolving customer expectations. We shall continuously pursue quality improvement programs that enable each employee to do his or her job right the first time and each time.

Product Features:
  • Engine heater replacement cord
See More

Kat’s – Freeze Plug Heater (Part No.11484)

Freeze Plug Heater

from

$101.99
Freeze Plug Heater, also referred to as a block heater or frost plug heater is the most reliable and efficient way to pre-heat your engine. Operates by being directly submerged into coolant and heating the block. Requires mechanical ability to install.

Product Features:
  • Saves wear and tear on your engine
  • Simple installation directly into engine block
See More

Kat’s – Freeze Plug Diesel Heater (Part No.30517)

Freeze Plug Diesel Heater

from

$151.99
Freeze Plug Heater, also referred to as a block heater or frost plug heater is the most reliable and efficient way to pre-heat your engine. Operates by being directly submerged into coolant and heating the block. Requires mechanical ability to install.

Product Features:
  • Saves wear and tear on your engine
  • Simple installation directly into engine block
See More

FAQs for 2012 GMC Sierra 3500 HD Seasonal Accessories

What are the best-selling Seasonal Accessories for 2012 GMC Sierra 3500 HDs?

Out of 4 Seasonal Accessories that fit 2012 GMC Sierra 3500 HDs, the following parts are the top sellers:

What’s the price range for 2012 GMC Sierra 3500 HD Seasonal Accessories?

The prices of Seasonal Accessories for the 2012 GMC Sierra 3500 HD range from $48.49 up to $204.99 for the most premium parts.

What is the average price of a Seasonal Accessory for a 2012 GMC Sierra 3500 HD?

The average price for Seasonal Accessories for the 2012 GMC Sierra 3500 HD is $126.82. Keep in mind the variety of part types within our Seasonal Accessory category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Seasonal Accessories for other GMC Sierra 3500 HD model years?

Yes, we carry Seasonal Accessories for 13 model years of GMC Sierra 3500 HDs between 2007 and 2021. The following model years are the most popular for Seasonal Accessory purchases: 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, and 2013.

What are the cheapest Seasonal Accessories for my 2012 GMC Sierra 3500 HD?

The cheapest 2012 GMC Sierra 3500 HD Seasonal Accessories we carry are:

Does Advance Auto Parts sell Seasonal Accessories for any other 2012 GMC models?

What are the top-rated Seasonal Accessories that fit the 2012 GMC Sierra 3500 HD?

The one 2012 GMC Sierra 3500 HD Seasonal Accessory we have in stock is the Engine Heater Replacement Cord. It is rated 1 stars and costs $48.49.

What types of Seasonal Accessories do you sell for my 2012 GMC Sierra 3500 HD?

As of 3/1/26, these are some of the most in-demand types of Seasonal Accessories for a 2012 GMC Sierra 3500 HD:

Can I get help with 2012 GMC Sierra 3500 HD Seasonal Accessory orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Seasonal Accessories and more.

What is your return policy for GMC Sierra 3500 HD Seasonal Accessories?

Advance Auto Parts keeps returns simple. For new GMC Sierra 3500 HD Seasonal Accessories and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.