1986 GMC C2500 Serpentine and V Belts

Essential 1986 GMC C2500 Serpentine and V Belts

Yukon Gear – Seal Puller Tool (Part No.56063)

Seal Puller Tool

from

$57.99
Pinion and axle seal puller. No return.

Product Features:
  • Seal puller
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Driveworks – Poly Rib Belt Serpentine Belt; 88 Long, 6 Rib Count (Part No.880K6)

Poly Rib Belt Serpentine Belt; 88 Long, 6 Rib Count

from

$34.99
The Driveworks belt is designed to provide better belt-to-pulley contact. The specialized rubber compound incorporates a high temperature polymer formulated to maximize load carrying requirements and belt life. This Driveworks ribbed belt has been constructed and engineered to meet the stringent demands of today’s automotive drive systems. The Driveworks ribbed belt delivers long-lasting dependable belt life.

Product Features:
  • Constructed with heat and ozone resistant EPDM rubber
  • Fiber is added to the rib stock to reinforce the rubber and reduce noise from worn and misaligned pulleys
  • Made with treated polyester cord to reduce belt stretch
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Dayco – Poly Rib Belt Serpentine Belt; 100.59 Long, 6 Rib Count (Part No.5061005)

Poly Rib Belt Serpentine Belt; 100.59 Long, 6 Rib Count

from

$37.99
Constructed with aramid reinforced EPDM compounds, the Dayco poly-V serpentine belt delivers  more than just OE quality. Developed through extensive laboratory and road testing, the rib profile in this EPDM belt has been engineered to conform to high mileage, worn or misaligned drives and helps eliminate noisy belt conditions. Dayco poly rib serpentine belts offer extensive flexibility and longer service life, while handling higher workloads and temperatures.

Product Features:
  • Provides full coverage for today’s light-duty vehicle market, especially vehicles with troublesome drives
  • Engineered to help address noise issues caused by the belt drive 
  • Capable of handling more extreme temperatures and workloads
  • Made in the USA
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Gates – V-Ribbed (Heavy Duty) Serpentine Belt: 93.985" Long, 6 Rib Count, Exact Fit (Part No.K060935HD)

V-Ribbed (Heavy Duty) Serpentine Belt: 93.985" Long, 6 Rib Count, Exact Fit

from

$59.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at prolonged extreme operating temperatures
  • Heavy-duty construction resists cracking and wear, even at extreme temperatures
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life
  • Problem solver designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Engineered to save your fleet money and reduce downtime
  • Tensioner Replacement is Recommended (if equipped)
See More

Dayco – Poly Rib Belt Serpentine Belt; 88 Long, 4 Rib Count (Part No.5040880)

Poly Rib Belt Serpentine Belt; 88 Long, 4 Rib Count

from

$32.99
Constructed with aramid reinforced EPDM compounds, the Dayco poly-V serpentine belt delivers  more than just OE quality. Developed through extensive laboratory and road testing, the rib profile in this EPDM belt has been engineered to conform to high mile

Product Features:
  • Provides full coverage for today’s light-duty vehicle market, especially vehicles with troublesome drives
  • Engineered to help address noise issues caused by the belt drive 
  • Capable of handling more extreme temperatures and workloads
See More

Gates – V-Ribbed (Heavy Duty) Serpentine Belt: 102.97" Long, 6 Rib Count, Exact Fit (Part No.K061025HD)

V-Ribbed (Heavy Duty) Serpentine Belt: 102.97" Long, 6 Rib Count, Exact Fit

from

$72.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at prolonged extreme operating temperatures
  • Heavy-duty construction resists cracking and wear, even at extreme temperatures
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life
  • Problem solver designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Engineered to save your fleet money and reduce downtime
  • Tensioner Replacement is Recommended (if equipped)
See More

Gates – Micro-V« Serpentine Drive Belt (Part No.K050435)

Micro-V« Serpentine Drive Belt

from

$30.49
Import or domestic, car or truck, every vehicle can depend on the superior quality of Gates precision fit Micro-V belts. With advanced technology that matches the OE size, construction and materials, Gates Micro-V ensures optimal vehicle performance.

Product Features:
  • Special belt construction eliminates belt noise, reduces tension loss and solves problem drive applications
  • EPDM rubber constructions resist cracking on the rib surface
  • Meets or exceeds all specifications from the Original Equipment Manufacturer
  • Tensioner Replacement is Recommended (if equipped)
  • Unique form grinding of each individual belt assures precise dimensional control.
  • Meets or exceeds SAE J1459, SAE J2432, and SAE J1596 specifications.
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Dayco – Poly Rib Belt Serpentine Belt; 91.75 Long, 6 Rib Count (Part No.5060918)

Poly Rib Belt Serpentine Belt; 91.75 Long, 6 Rib Count

from

$42.99
Constructed with aramid reinforced EPDM compounds, the Dayco poly-V serpentine belt delivers  more than just OE quality. Developed through extensive laboratory and road testing, the rib profile in this EPDM belt has been engineered to conform to high mile

Product Features:
  • Provides full coverage for today’s light-duty vehicle market, especially vehicles with troublesome drives
  • Engineered to help address noise issues caused by the belt drive 
  • Capable of handling more extreme temperatures and workloads
See More

Gates – FleetRunner« Heavy-Duty Micro-V« Serpentine Drive Belt (Part No.K080585HD)

FleetRunner« Heavy-Duty Micro-V« Serpentine Drive Belt

from

$75.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at prolonged extreme operating temperatures
  • Heavy-duty construction resists cracking and wear, even at extreme temperatures
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life
  • Problem solver designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Engineered to save your fleet money and reduce downtime
  • Tensioner Replacement is Recommended (if equipped)
See More

Driveworks – Poly Rib Belt Serpentine Belt; 94.09 Long, 6 Rib Count (Part No.940K6)

Poly Rib Belt Serpentine Belt; 94.09 Long, 6 Rib Count

from

$46.49
The Driveworks belt is designed to provide better belt-to-pulley contact. The specialized rubber compound incorporates a high temperature polymer formulated to maximize load carrying requirements and belt life. This Driveworks ribbed belt has been constructed and engineered to meet the stringent demands of today’s automotive drive systems. The Driveworks ribbed belt delivers long-lasting dependable belt life.

Product Features:
  • Constructed with heat and ozone resistant EPDM rubber
  • Fiber is added to the rib stock to reinforce the rubber and reduce noise from worn and misaligned pulleys
  • Made with treated polyester cord to reduce belt stretch
See More

Dayco – Poly Rib Belt Serpentine Belt; 101 Long, 6 Rib Count (Part No.5061010)

Poly Rib Belt Serpentine Belt; 101 Long, 6 Rib Count

from

$53.99
Constructed with aramid reinforced EPDM compounds, the Dayco poly-V serpentine belt delivers  more than just OE quality. Developed through extensive laboratory and road testing, the rib profile in this EPDM belt has been engineered to conform to high mile

Product Features:
  • Provides full coverage for today’s light-duty vehicle market, especially vehicles with troublesome drives
  • Engineered to help address noise issues caused by the belt drive 
  • Capable of handling more extreme temperatures and workloads
See More

Dayco – Poly Rib Belt Serpentine Belt; 87.6 Long, 6 Rib Count (Part No.5060875)

Poly Rib Belt Serpentine Belt; 87.6 Long, 6 Rib Count

from

$53.99
Constructed with aramid reinforced EPDM compounds, the Dayco poly-V serpentine belt delivers  more than just OE quality. Developed through extensive laboratory and road testing, the rib profile in this EPDM belt has been engineered to conform to high mileage, worn or misaligned drives and helps eliminate noisy belt conditions. Dayco poly rib serpentine belts offer extensive flexibility and longer service life, while handling higher workloads and temperatures.

Product Features:
  • Provides full coverage for today’s light-duty vehicle market, especially vehicles with troublesome drives
  • Engineered to help address noise issues caused by the belt drive 
  • Capable of handling more extreme temperatures and workloads
See More

Gates – FleetRunner« Heavy-Duty Micro-V« Serpentine Drive Belt (Part No.K061058HD)

FleetRunner« Heavy-Duty Micro-V« Serpentine Drive Belt

from

$55.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at prolonged extreme operating temperatures
  • Heavy-duty construction resists cracking and wear, even at extreme temperatures
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life
  • Problem solver designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Engineered to save your fleet money and reduce downtime
  • Tensioner Replacement is Recommended (if equipped)
See More

Gates – FleetRunner« Heavy-Duty Micro-V« Serpentine Drive Belt (Part No.K060870HD)

FleetRunner« Heavy-Duty Micro-V« Serpentine Drive Belt

from

$62.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at prolonged extreme operating temperatures
  • Heavy-duty construction resists cracking and wear, even at extreme temperatures
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life
  • Problem solver designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Engineered to save your fleet money and reduce downtime
  • Tensioner Replacement is Recommended (if equipped)
See More

Dayco – Bottom Cog V-Belt; 45.5 Inch Long, Exact Fit Premium Quality (Part No.15455)

Bottom Cog V-Belt; 45.5 Inch Long, Exact Fit Premium Quality

from

$20.29
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
See More

ACDelco – Professional V-Ribbed Serpentine Belt (Part No.W1000578665ACD)

Professional V-Ribbed Serpentine Belt

from

$94.54
ACDelco Professional, premium aftermarket V-Ribbed Advanced Technology Belts serve as replacement belts for accessory belt drive systems (ABDS) and other serpentine belt applications. They are designed using advanced manufacturing technology and premium EPDM rubber construction to provide customers with superior accessory belt drive systems (ABDS) and new-vehicle-type performance. These premium aftermarket replacement v-ribbed advanced technology belts are manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Made with temperature and crack resistant EPDM rubber for a long life and quiet, dependable performance
  • Is the belt of choice by professional technicians, lasting 50% to 60% longer than retail belts (low priced belts sold at car part stores)
  • Its precision dimension control of rib profile transmits load efficiently throughout the accessory belt drive systems (ABDS) allowing components to operate at optimum levels
  • Able to operate and accept misalignment in the accessory belt drive systems (ABDS) far greater than other serpentine belts
  • Its flexible construction allows the belt to withstand billions of topside and backside bends resulting in a long belt life
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Dayco – Bottom Cog V-Belt; 49 Inch Long, Exact Fit Premium Quality (Part No.15490)

Bottom Cog V-Belt; 49 Inch Long, Exact Fit Premium Quality

from

$16.29
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts longer. Three plies of neoprene impregnated fabric resist heat, oil and grease while a specially-formulated treatment of the polyester cord provides the strength, stability and reliability that are required for one of the most innovative, top-performing V-belts.

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
See More

Dayco – Bottom Cog V-Belt; 60 Inch Long, Exact Fit Premium Quality (Part No.15600)

Bottom Cog V-Belt; 60 Inch Long, Exact Fit Premium Quality

from

$21.99
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
  • Made with specially formulated rubber compounds, this belt is highly resistant to extreme under hood temperatures that can cause premature damage to under engineered rubber compounds
See More

Driveworks – Automotive V-Belt (Part No.60515)

Automotive V-Belt

from

$4.99
The Driveworks V-Belt is manufactured with top quality components to deliver the maximum power and performance on all passenger cars and light duty trucks in service today.

Product Features:
  • This belt is made with bottom cogs to provide the maximum flexibility and grip required on v-belt drives
  • Polyester cords provide extreme tension-holding capability for longer belt life
  • The raw edge belt design delivers the maximum gripping power
  • The highly engineered rubber compounds are resistant to under hood heat and ozone deterioration
See More

Driveworks – Poly Rib Belt Serpentine Belt; 74.5 Long, 6 Rib Count (Part No.60015)

Poly Rib Belt Serpentine Belt; 74.5 Long, 6 Rib Count

from

$6.29
Dayco engineered to conform to high mileage, worn or misaligned drives without a sacrifice in quiet, long-lasting performance. Constructed with Aramid reinforced EPDM compounds, it delivers more than OE required quality… it delivers the solution to troublesome drive problems. Dayco Poly-Rib Belts meet or exceed SAE J1459 and SAE J2432 specifications.

Product Features:
  • Aramid noise resistant fibers embedded in the rubber make this belt run quieter in worn or misaligned pulleys
  • No-Noise Advanced Design EPDM rubber compound for quiet extended life
See More

Dayco – Bottom Cog V-Belt; 46.5 Inch Long, Exact Fit Premium Quality (Part No.15465)

Bottom Cog V-Belt; 46.5 Inch Long, Exact Fit Premium Quality

from

$24.49
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts longer. Three plies of neoprene impregnated fabric resist heat, oil and grease while a specially-formulated treatment of the polyester cord provides the strength, stability and reliability that are required for one of the most innovative, top-performing V-belts.

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
See More

Driveworks – Automotive V-Belt (Part No.44013)

Automotive V-Belt

from

$5.49
The Driveworks V-Belt is manufactured with top quality components to deliver the maximum power and performance on all passenger cars and light duty trucks in service today.

Product Features:
  • This belt is made with bottom cogs to provide the maximum flexibility and grip required on v-belt drives
  • Polyester cords provide extreme tension-holding capability for longer belt life
  • The raw edge belt design delivers the maximum gripping power
  • The highly engineered rubber compounds are resistant to under hood heat and ozone deterioration
See More

Dayco – Bottom Cog V-Belt; 38.5 Inch Long, Exact Fit Premium Quality (Part No.15385)

Bottom Cog V-Belt; 38.5 Inch Long, Exact Fit Premium Quality

from

$20.99
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts longer. Three plies of neoprene impregnated fabric resist heat, oil and grease while a specially-formulated treatment of the polyester cord provides the strength, stability and reliability that are required for one of the most innovative, top-performing V-belts.

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
See More

Dayco – Bottom Cog V-Belt; 42.5 Inch Long, Exact Fit Premium Quality (Part No.15425)

Bottom Cog V-Belt; 42.5 Inch Long, Exact Fit Premium Quality

from

$16.79
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts longer. Three plies of neoprene impregnated fabric resist heat, oil and grease while a specially-formulated treatment of the polyester cord provides the strength, stability and reliability that are required for one of the most innovative, top-performing V-belts.

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
See More

Dayco – Bottom Cog V-Belt; 33 Inch Long, Exact Fit Premium Quality (Part No.15330)

Bottom Cog V-Belt; 33 Inch Long, Exact Fit Premium Quality

from

$14.29
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts longer. Three plies of neoprene impregnated fabric resist heat, oil and grease while a specially-formulated treatment of the polyester cord provides the strength, stability and reliability that are required for one of the most innovative, top-performing V-belts.

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
See More

Driveworks – Automotive V-Belt (Part No.48513)

Automotive V-Belt

from

$4.99
The Driveworks V-Belt is manufactured with top quality components to deliver the maximum power and performance on all passenger cars and light duty trucks in service today.

Product Features:
  • This belt is made with bottom cogs to provide the maximum flexibility and grip required on v-belt drives
  • Polyester cords provide extreme tension-holding capability for longer belt life
  • The raw edge belt design delivers the maximum gripping power
  • The highly engineered rubber compounds are resistant to under hood heat and ozone deterioration
See More

ACDelco – Professional High Capacity V-Belt (Part No.W1000425231ACD)

Professional High Capacity V-Belt

from

$32.28
ACDelco Professional, premium aftermarket V-Belts serve as replacement belts for today’s most demanding engine drives. Due to thermal forces, these variable notched belts actually tighten on the drive as they get hot. This results in improved belt performance by reducing tension, decay, and noise. These premium aftermarket replacement v-belts are manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Its fiber loaded rubber stock puts more flexibility along the length of the belt, yet gives the belt greater lateral stability in the pulley
  • Has thermally active tensile cords that provide maintenance free performance when properly installed and tensioned
  • Manufactured with form ground to ensure precise top width and sidewall dimensional control for proper fit in the pulley as well as a smoother, quieter running belt
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Driveworks – Poly Rib Belt Serpentine Belt; 71.06 Long, 6 Rib Count (Part No.58015)

Poly Rib Belt Serpentine Belt; 71.06 Long, 6 Rib Count

from

$5.29
Dayco engineered to conform to high mileage, worn or misaligned drives without a sacrifice in quiet, long-lasting performance. Constructed with Aramid reinforced EPDM compounds, it delivers more than OE required quality… it delivers the solution to troublesome drive problems. Dayco Poly-Rib Belts meet or exceed SAE J1459 and SAE J2432 specifications.

Product Features:
  • Aramid noise resistant fibers embedded in the rubber make this belt run quieter in worn or misaligned pulleys
  • No-Noise Advanced Design EPDM rubber compound for quiet extended life
See More

1986 GMC C2500 Serpentine and V Belts

Maybe you’re in the middle of a full rebuild of that 1986 GMC C2500. Maybe you just need a couple of Serpentine and V Belts. Either way, Advance Auto Parts has 61 different Serpentine and V Belts in our inventory ranging from $1.99 to $57.99. That means you can find the exact parts or products you need to keep that 1986 GMC C2500 running smoothly.

Serpentine and V Belts are only as good as their brand. We stock 6 different brands to make sure you have plenty of trusted parts to choose from for your 1986 GMC C2500. Dayco, Driveworks, and Yukon Gear are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Serpentine and V Belts for your 1986 GMC C2500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 472 reviews in this category, some of the top rated parts include Poly Rib Belt Serpentine Belt; 37.01 Long, 6 Rib Count with 4.3 stars and Poly Rib Belt Serpentine Belt; 56 Long, 6 Rib Count with 5.0 stars.

So if you’re in the market for aftermarket Serpentine and V Belts to keep your 1986 GMC C2500 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Serpentine and V Belts Brands To Make Your 1986 GMC C2500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1986 GMC C2500 demands trusted brand parts and products to keep it running. Many trusted brands of Serpentine and V Belts make up Advance Auto Parts’ inventory, and all are ready to help make your C2500 the best it can be. Be sure to browse some of our top Serpentine and V Belts brands and parts.

FAQs for 1986 GMC C2500 Serpentine and V Belts

What are the most purchased Serpentine and V Belts for the 1986 GMC C2500?

Out of 61 Serpentine and V Belts for the 1986 GMC C2500, the most popular in our inventory are:
Poly Rib Belt Serpentine Belt; 43.31 Long, 5 Rib Count
from $15.79
(13)
Poly Rib Belt Serpentine Belt; 43.31 Long, 5 Rib Count
Serpentine Belts

What are the top-rated 1986 GMC C2500 Serpentine and V Belts?

Top-rated Serpentine and V Belts for your 1986 GMC C2500 based on customer reviews/ratings are:
Poly Rib Belt Serpentine Belt; 37.01 Long, 6 Rib Count
from $5.49
(12)
Poly Rib Belt Serpentine Belt; 37.01 Long, 6 Rib Count
“Just a belt”
Poly Rib Belt Serpentine Belt; 56 Long, 6 Rib Count
from $29.99
(8)
Poly Rib Belt Serpentine Belt; 56 Long, 6 Rib Count
“Fits. Works fine”
Automotive V-Belt, Driveworks
from $5.79
(8)
Automotive V-Belt, Driveworks
“Perfect O.E replacement”