1988 Peterbilt 378 Serpentine and V Belts

Essential 1988 Peterbilt 378 Serpentine and V Belts

Driveworks – Automotive V-Belt, Driveworks (Part No.55017)

Automotive V-Belt, Driveworks

from

$6.29
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
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Gates – Green Stripe« Truck & Bus Series V-Belt (Part No.TR28583)

Green Stripe« Truck & Bus Series V-Belt

from

$55.99
Specifically designed for heavy-duty truck, bus and off-road equipment applications. Absorbs normal shock loads without damage to the belt.

Product Features:
  • Molded notches reduce bending stress, especially on small diameter pulleys, while dissipating heat
  • High modulus, high strength tensile cord
  • Oil and heat-resistant construction throughout
  • Meets SAE J636b and SAE J637 specifications
  • Meets RMA oil and heat resistant standards and static conductivity requirements
  • NOTE: Some sizes available as Gates PowerBand joined V-belts
See More

Gates – Automotive XL« High Capacity V-Belt (Part No.9520)

Automotive XL« High Capacity V-Belt

from

$41.49
Replacement belt for the most demanding engine drives. Due to thermal forces, this variable notched belt actually tightens on the drive as it gets hot. This results in improved belt performance by reducing tension decay and noise.

Product Features:
  • Fiber-loaded rubber stock adds flexibility along the length of the belt and provides greater lateral stability in the pulley
  • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
  • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
  • Resists oil, heat, ozone, weather and aging for improved belt life
  • Meets or exceeds SAE J636C specifications
See More

Dayco – Bottom Cog V-Belt; 57 Inch Long, Exact Fit Premium Quality (Part No.17570)

Bottom Cog V-Belt; 57 Inch Long, Exact Fit Premium Quality

from

$28.99
Dayco’s high performance HD V-belt is one of the most innovative, top performing belts for its application. By combining raw-edge construction with a specially formulated polyester cord treatment, it offers excellent resistance to repeated flexing and protection against heat, oil and grease as well as the strength, stability and reliability required for vehicles that still need a heavy-duty V-belt.

Product Features:
  •  Designed for efficient power transmission to vehicle accessories in today’s trucks and buses
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  •  Features specially treated cords for added strength, stability and reliability
  • 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

Gates – Automotive XL« High Capacity V-Belt (Part No.9640)

Automotive XL« High Capacity V-Belt

from

$34.99
Replacement belt for the most demanding engine drives. Due to thermal forces, this variable notched belt actually tightens on the drive as it gets hot. This results in improved belt performance by reducing tension decay and noise.

Product Features:
  • Fiber-loaded rubber stock adds flexibility along the length of the belt and provides greater lateral stability in the pulley
  • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
  • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
  • Resists oil, heat, ozone, weather and aging for improved belt life
  • Meets or exceeds SAE J636C specifications
See More

Dayco – Double Cog V-Belt; 47.25 Inch Long, Exact Fit Premium Quality (Part No.28473)

Double Cog V-Belt; 47.25 Inch Long, Exact Fit Premium Quality

from

$16.79
Dayco’s high performance HD V-belt is one of the most innovative, top performing belts for its application. By combining raw-edge construction with a specially formulated polyester cord treatment, it offers excellent resistance to repeated flexing and pro

Product Features:
  •  Designed for efficient power transmission to vehicle accessories in today’s trucks and buses
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  •  Features specially treated cords for added strength, stability and reliability
  • 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 – Poly Rib Belt Serpentine Belt; 54 Long, 6 Rib Count (Part No.52017)

Poly Rib Belt Serpentine Belt; 54 Long, 6 Rib Count

from

$5.99
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:
  • The raw edge belt design delivers the maximum gripping power
  • This belt is made with bottom cogs to provide the maximum flexibility and grip required on v-belt drives
  • The highly engineered rubber compounds are resistant to under hood heat and ozone deterioration
  • Polyester cords provide extreme tension-holding capability for longer belt life
See More

Gates – Green Stripe« Truck & Bus Series V-Belt (Part No.TR28480)

Green Stripe« Truck & Bus Series V-Belt

from

$51.99
Specifically designed for heavy-duty truck, bus and off-road equipment applications. Absorbs normal shock loads without damage to the belt.

Product Features:
  • Molded notches reduce bending stress, especially on small diameter pulleys, while dissipating heat
  • High modulus, high strength tensile cord
  • Oil and heat-resistant construction throughout
  • Meets SAE J636b and SAE J637 specifications
  • Meets RMA oil and heat resistant standards and static conductivity requirements
  • NOTE: Some sizes available as Gates PowerBand joined V-belts
See More

Gates – FleetRunner« Heavy-Duty V-Belt (Part No.9570HD)

FleetRunner« Heavy-Duty V-Belt

from

$55.99
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 extremely prolonged operating temperatures
  • Heavy-duty construction resists cracking, wear, oil and heat
  • Special compound provides unmatched stability, load carrying capacity and belt life
  • Unique undercord notch pattern offers increased flexibility for smaller diameter pulleys
  • Problem solver for troubled drives
  • Engineered to save your fleet money and reduce downtime
  • Meets RMA oil and heat resistant standards and static conductivity requirements
See More

Dayco – Bottom Cog V-Belt; 26 Inch Long, Exact Fit Premium Quality (Part No.17260)

Bottom Cog V-Belt; 26 Inch Long, Exact Fit Premium Quality

from

$10.29
Dayco’s high performance HD V-belt is one of the most innovative, top performing belts for its application. By combining raw-edge construction with a specially formulated polyester cord treatment, it offers excellent resistance to repeated flexing and protection against heat, oil and grease as well as the strength, stability and reliability required for vehicles that still need a heavy-duty V-belt.

Product Features:
  •  Designed for efficient power transmission to vehicle accessories in today’s trucks and buses
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  •  Features specially treated cords for added strength, stability and reliability
  • 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

Gates – Automotive XL« High Capacity V-Belt (Part No.9420)

Automotive XL« High Capacity V-Belt

from

$35.99
Replacement belt for the most demanding engine drives. Due to thermal forces, this variable notched belt actually tightens on the drive as it gets hot. This results in improved belt performance by reducing tension decay and noise.

Product Features:
  • Fiber-loaded rubber stock adds flexibility along the length of the belt and provides greater lateral stability in the pulley
  • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
  • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
  • Resists oil, heat, ozone, weather and aging for improved belt life
  • Meets or exceeds SAE J636C specifications
See More

Dayco – Bottom Cog V-Belt; 66 Inch Long, Exact Fit Premium Quality (Part No.17660)

Bottom Cog V-Belt; 66 Inch Long, Exact Fit Premium Quality

from

$24.99
Dayco’s high performance HD V-belt is one of the most innovative, top performing belts for its application. By combining raw-edge construction with a specially formulated polyester cord treatment, it offers excellent resistance to repeated flexing and protection against heat, oil and grease as well as the strength, stability and reliability required for vehicles that still need a heavy-duty V-belt.

Product Features:
  •  Designed for efficient power transmission to vehicle accessories in today’s trucks and buses
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  •  Features specially treated cords for added strength, stability and reliability
  • 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

Gates – Automotive XL« High Capacity V-Belt (Part No.9313)

Automotive XL« High Capacity V-Belt

from

$32.49
Replacement belt for the most demanding engine drives. Due to thermal forces, this variable notched belt actually tightens on the drive as it gets hot. This results in improved belt performance by reducing tension decay and noise.

Product Features:
  • Fiber-loaded rubber stock adds flexibility along the length of the belt and provides greater lateral stability in the pulley
  • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
  • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
  • Resists oil, heat, ozone, weather and aging for improved belt life
  • Meets or exceeds SAE J636C specifications
See More

Dayco – Banded Cogged V-Belt; 66 Inch Long, Exact Fit Premium Quality (Part No.2B17660)

Banded Cogged V-Belt; 66 Inch Long, Exact Fit Premium Quality

from

$93.99
Dayco banded V-belts feature raw edge construction, a three-ply laminated fabric cover and EPDM design to ensure superior gripping power, while the belts’ bottom cog construction provides extreme flexibility and cooling. By combining two belts using the c

Product Features:
  • Designed for applications where the OE pulley design requires the use of two V-belts joined together with a common backing
  • Offers extreme gripping power due to its raw edge construction and unique fabric cover
  • Increased protection from oil and dirt and resistant to fatigue and fluctuating shock load tensions
See More

Gates – Micro-V« Serpentine Drive Belt (Part No.K060455)

Micro-V« Serpentine Drive Belt

from

$26.49
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.
See More

Dayco – Poly Rib Belt HD Serpentine Belt; 57.09 Long, 8 Rib Count, Heavy Duty (Part No.5080570)

Poly Rib Belt HD Serpentine Belt; 57.09 Long, 8 Rib Count, Heavy Duty

from

$56.99
Produced for heavy-duty vehicles and buses with multiple accessories, Dayco HD poly-V belts are made from EPDM material to resist heat and are compliant with the latest standards, guaranteeing resistance, reliability, low noise and longer service life. En

Product Features:
  • Engineered to handle operating conditions with temperatures up to 130°C (266°F)
  • Designed for multiple accessories such as A/C, power steering pumps, alternators and water pumps
  • Capable of delivering excellent performance in high torque and high power pulse applications
  • Specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt
See More

Dayco – Poly Rib Belt Serpentine Belt; 32 Long, 5 Rib Count (Part No.5050320)

Poly Rib Belt Serpentine Belt; 32 Long, 5 Rib Count

from

$19.99
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
See More

Gates – V-Ribbed Serpentine Belt: 59.024" Long, 8 Rib Count, Exact Fit (Part No.K080585)

V-Ribbed Serpentine Belt: 59.024" Long, 8 Rib Count, Exact Fit

from

$60.99
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.
See More

Gates – V-Ribbed (Heavy Duty) Serpentine Belt: 54.521" Long, 6 Rib Count, Exact Fit (Part No.K060539HD)

V-Ribbed (Heavy Duty) Serpentine Belt: 54.521" Long, 6 Rib Count, Exact Fit

from

$37.99
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; 68.5 Long, 6 Rib Count (Part No.685K6)

Poly Rib Belt Serpentine Belt; 68.5 Long, 6 Rib Count

from

$45.49
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

Driveworks – Poly Rib Belt Serpentine Belt; 64 Long, 6 Rib Count (Part No.640K6)

Poly Rib Belt Serpentine Belt; 64 Long, 6 Rib Count

from

$18.79
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

Gates – V-Ribbed (Heavy Duty) Serpentine Belt: 89.625" Long, 12 Rib Count, Exact Fit (Part No.K120891HD)

V-Ribbed (Heavy Duty) Serpentine Belt: 89.625" Long, 12 Rib Count, Exact Fit

from

$159.99
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; 38 Long, 5 Rib Count (Part No.380K5)

Poly Rib Belt Serpentine Belt; 38 Long, 5 Rib Count

from

$19.79
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; 54.75 Long, 6 Rib Count (Part No.5060548)

Poly Rib Belt Serpentine Belt; 54.75 Long, 6 Rib Count

from

$27.49
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 – V-Ribbed (Heavy Duty) Serpentine Belt: 69.125" Long, 6 Rib Count, Exact Fit (Part No.K060685HD)

V-Ribbed (Heavy Duty) Serpentine Belt: 69.125" Long, 6 Rib Count, Exact Fit

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

Driveworks – Poly Rib Belt Serpentine Belt; 43 Long, 4 Rib Count (Part No.430K4)

Poly Rib Belt Serpentine Belt; 43 Long, 4 Rib Count

from

$15.49
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 HD Serpentine Belt; 58.5 Long, 8 Rib Count, Heavy Duty (Part No.5080585)

Poly Rib Belt HD Serpentine Belt; 58.5 Long, 8 Rib Count, Heavy Duty

from

$56.99
Produced for heavy-duty vehicles and buses with multiple accessories, Dayco HD poly-V belts are made from EPDM material to resist heat and are compliant with the latest standards, guaranteeing resistance, reliability, low noise and longer service life. En

Product Features:
  • Engineered to handle operating conditions with temperatures up to 130°C (266°F)
  • Designed for multiple accessories such as A/C, power steering pumps, alternators and water pumps
  • Capable of delivering excellent performance in high torque and high power pulse applications
  • Specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt
See More

Dayco – Poly Rib Belt Serpentine Belt; 42.52 Long, 6 Rib Count (Part No.5060425)

Poly Rib Belt Serpentine Belt; 42.52 Long, 6 Rib Count

from

$25.99
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

1988 Peterbilt 378 Serpentine and V Belts

Maybe you’re in the middle of a full rebuild of that 1988 Peterbilt 378. Maybe you just need a couple of Serpentine and V Belts. Either way, Advance Auto Parts has 97 different Serpentine and V Belts in our inventory ranging from $4.29 to $87.99. That means you can find the exact parts or products you need to keep that 1988 Peterbilt 378 running smoothly.

Serpentine and V Belts are only as good as their brand. We stock 3 different brands to make sure you have plenty of trusted parts to choose from for your 1988 Peterbilt 378. Dayco, DriveWorks, and Gates 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 1988 Peterbilt 378, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 133 reviews in this category, some of the top rated parts include Poly Rib Belt Serpentine Belt; 43 Long, 4 Rib Count with 3.0 stars and Automotive V-Belt with 5.0 stars.

So if you’re in the market for aftermarket Serpentine and V Belts to keep your 1988 Peterbilt 378 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 1988 Peterbilt 378 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1988 Peterbilt 378 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 378 the best it can be. Be sure to browse some of our top Serpentine and V Belts brands and parts.

FAQs for 1988 Peterbilt 378 Serpentine and V Belts

What are the most purchased Serpentine and V Belts for the 1988 Peterbilt 378?

Out of 97 Serpentine and V Belts for the 1988 Peterbilt 378, the most popular in our inventory are:
Poly Rib Belt Serpentine Belt; 43.6 Long, 6 Rib Count
from $21.99
(16)
Poly Rib Belt Serpentine Belt; 43.6 Long, 6 Rib Count
Serpentine Belts
Poly Rib Belt Serpentine Belt; 38 Long, 5 Rib Count
from $19.79
(8)
Poly Rib Belt Serpentine Belt; 38 Long, 5 Rib Count
Serpentine Belts

What are the top-rated 1988 Peterbilt 378 Serpentine and V Belts?

Top-rated Serpentine and V Belts for your 1988 Peterbilt 378 based on customer reviews/ratings are:
Poly Rib Belt Serpentine Belt; 43 Long, 4 Rib Count
from $15.49
(4)
Poly Rib Belt Serpentine Belt; 43 Long, 4 Rib Count
“Great fitment”
Automotive V-Belt
from $4.99
(2)
Automotive V-Belt
“Good price and quality”
Automotive V-Belt, Driveworks
from $4.29
(1)
Automotive V-Belt, Driveworks
“Quality replacement belt. Great price.”