1981 Mack MR Belts and Hoses

Essential Belts and Hoses for 1981 Mack MRs

Gates – Green Stripe« 2-Ply Straight Coolant Hose (Part No.24232)

Green Stripe« 2-Ply Straight Coolant Hose

from

$2.99
Stick hose designed for demanding heavy-duty coolant/air applications. Approved for marine applications.

Product Features:
  • Cover marked in 1 in. increments to facilitate approximate cut lengths, allows ┐custom-fit” installations
  • Engineered with compounds that resist electrochemical degradation
  • Approved for marine applications
  • Exceeds SAE 20R1 Type EC (Class D-1 Tube, and cover, Standard Wall)
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: For a maintenance free connection, use PowerGrip SB clamps
  • Caution: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the inch. See store for details.
See More

Dayco – V-Belt, Top Cog (Part No.17385)

V-Belt, Top Cog

from

$12.99
Dayco® High Performance V-Belt is the workhorse of the heavy-duty industry. Polyester cord provides maximum power transfer and tension holding capability for the life of the belt. The laminated construction helps absorb greater shock loads associated with diesel engines. These Dayco® High Performance V-Belt advantages translate into less downtime, lower maintenance costs, and increased dependability. Dayco’s High Performance V-Belt meets or exceeds SAE J636 and J637 specifications.

Product Features:
  • The High Performance V-Belt design delivers more flexibility and increases airflow around the belt, so it runs cooler and lasts longer than most competitive belts
  • Polyester cord provides maximum power transfer and tension holding capability for the life of the belt
  • The laminated construction helps absorb greater shock loads associated with diesel engines
  • 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

Dayco – Bottom Cog V-Belt; 64 Inch Long, Exact Fit Premium Quality (Part No.17640)

Bottom Cog V-Belt; 64 Inch Long, Exact Fit Premium Quality

from

$23.99
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 – FleetRunner« Heavy-Duty V-Belt (Part No.9600HD)

FleetRunner« Heavy-Duty V-Belt

from

$46.99
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

Gates – Automotive XL« High Capacity V-Belt (Part No.9412)

Automotive XL« High Capacity V-Belt

from

$30.99
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; 62 Inch Long, Exact Fit Premium Quality (Part No.17620)

Bottom Cog V-Belt; 62 Inch Long, Exact Fit Premium Quality

from

$21.99
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 – Notched V-Belt: 44.12" Long, 1 Strand, Exact Fit (Part No.9435)

Notched V-Belt: 44.12" Long, 1 Strand, Exact Fit

from

$23.79
Notched V-Belt: 44.12" Long, 1 Strand, Exact Fit

Gates – Automotive XL« High Capacity V-Belt (Part No.9395)

Automotive XL« High Capacity V-Belt

from

$31.49
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 – V-Belt, Top Cog (Part No.17395)

V-Belt, Top Cog

from

$19.49
Dayco® High Performance V-Belt is the workhorse of the heavy-duty industry. Polyester cord provides maximum power transfer and tension holding capability for the life of the belt. The laminated construction helps absorb greater shock loads associated with diesel engines. These Dayco® High Performance V-Belt advantages translate into less downtime, lower maintenance costs, and increased dependability. Dayco’s High Performance V-Belt meets or exceeds SAE J636 and J637 specifications.

Product Features:
  • The High Performance V-Belt design delivers more flexibility and increases airflow around the belt, so it runs cooler and lasts longer than most competitive belts
  • Polyester cord provides maximum power transfer and tension holding capability for the life of the belt
  • The laminated construction helps absorb greater shock loads associated with diesel engines
  • 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 – FleetRunner« Heavy-Duty V-Belt (Part No.9610HD)

FleetRunner« Heavy-Duty V-Belt

from

$43.99
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; 44 Inch Long, Exact Fit Premium Quality (Part No.17440)

Bottom Cog V-Belt; 44 Inch Long, Exact Fit Premium Quality

from

$16.99
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

Driveworks – Poly Rib Belt Serpentine Belt; 91.54 Long, 6 Rib Count (Part No.38517)

Poly Rib Belt Serpentine Belt; 91.54 Long, 6 Rib Count

from

$4.99
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

Gates – Automotive XL« High Capacity V-Belt (Part No.9550)

Automotive XL« High Capacity V-Belt

from

$36.99
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

Gates – FleetRunner« Heavy-Duty V-Belt (Part No.9412HD)

FleetRunner« Heavy-Duty V-Belt

from

$35.99
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

Gates – Green Stripe« 2-Ply Straight Coolant Hose (Part No.24220)

Green Stripe« 2-Ply Straight Coolant Hose

from

$1.49
Stick hose designed for demanding heavy-duty coolant/air applications. Approved for marine applications.

Product Features:
  • Cover marked in 1 in. increments to facilitate approximate cut lengths, allows ┐custom-fit” installations
  • Engineered with compounds that resist electrochemical degradation
  • Approved for marine applications
  • Exceeds SAE 20R1 Type EC (Class D-1 Tube, and cover, Standard Wall)
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: For a maintenance free connection, use PowerGrip SB clamps
  • Caution: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the inch. See store for details.
See More

Dayco – Straight Radiator Hoses; EPDM Rubber, HD, 2 1/2 Inch Inner Dia. (Sold by inch) (Part No.77250GL)

Straight Radiator Hoses; EPDM Rubber, HD, 2 1/2 Inch Inner Dia. (Sold by inch)

from

$2.49
Designed for a wide range of heavy-duty truck applications where the routing is relatively straight, the Dayco straight radiator hose – H.D. is made with the highest quality woven mesh fabric reinforcement, neoprene cover and nitrile tube compounds to withstand the most corrosive elements in diesel engines. Providing protection from oil, coolants, coolant additives and heat, it has a temperature rating of -40?F (-40?C) to +212?F (+100?C).

Product Features:
  • Capable of withstanding extreme temperatures and high-pressure environments
  • Designed to meet SAE requirements J20R1, Class B Tube, Class C Cover, standard wall construction
  • Not suitable for fuel or oil transfer
  • PLEASE NOTE: Priced and sold by inch. See store for details.
See More

Dayco – Straight Coolant Hose, Heavy-Duty 2-Ply, 2" (Sold by inch) (Part No.77200GL)

Straight Coolant Hose, Heavy-Duty 2-Ply, 2" (Sold by inch)

from

$1.79
Designed for a wide range of light and heavy duty truck applications where the radiator hose routing is relatively straight, Dayco Heavy Duty Straight Radiator Hose is made with the highest quality woven mesh fabric reinforcement, neoprene cover, and nitrile tube compounds to withstand the most corrosive elements in diesel engines: oil, coolants, coolant additives, and temperature ranges of -40 Degree F (-40 Degree C) to +212 Degree F (+100 Degree C). This hose meets SAE requirements J20R1, Class B Tube, Class C Cover, standard wall construction. Note: This hose is NOT suitable for fuel or oil transfer.

Product Features:
  • Meets SAE requirements J20R1, Class B Tube, Class C Cover, standard wall construction
  • Made with the highest quality woven mesh fabric reinforcement, neoprene cover, and nitrile tube compounds
  • Withstands the most corrosive elements in diesel engines: oil, coolants, and coolant additives
  • Performs well in temperature ranges of -40 Degree F (-40 Degree C) to +212 Degree F (+100 Degree C)
  • PLEASE NOTE: Priced and sold by inch. See store for details.
See More

Upgrade your 1981 Mack MR with Top-Quality Belts and Hoses

When it comes to maintaining or upgrading your 1981 Mack MR, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mack or enhancing its overall performance, Belts and Hoses are key to keeping your MR functioning at its best. At Advance Auto Parts, we offer a wide selection of 27 Belts and Hoses for the 1981 Mack MR, designed to meet your needs without breaking the bank. From Serpentine and V Belt replacements to Radiator Hoses upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Belts and Hoses for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Belts and Hoses for your 1981 Mack MR at great prices. Our Belts and Hoses inventory for this model ranges from just $1.49 to $47.99, with an average price of $23.61. Our 27 Belts and Hoses in stock come from 3 trusted brands, so you’re sure to find the right part for your 1981 Mack MR without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1981 Mack MR, we stock popular OEM and aftermarket Belts and Hoses from top names like Dayco Driveworks, and more. Dayco Belts and Hoses start at just $15.49 and boast an impressive 5 stars average rating from customers. With 8 customer reviews and counting, our 1981 Mack MR Belts and Hoses have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Belts and Hose upgrades. Explore related part types like Fluids and Chemicals, Wipers and Related Products and more to make sure your 1981 Mack MR is always ready to roll. We’re committed to providing you with everything you need to keep your MR in top shape, all in one place. Start shopping confidently below for your 1981 Mack MR!

Best-Selling Serpentine and V Belts for 1981 Mack MRs

Enhance the driving experience in your Mack with 22 quality Serpentine and V Belt components, starting at $4.99.

Dayco – Bottom Cog V-Belt: 45.5" Long, Exact Fit Premium Quality (Part No.17455)

Bottom Cog V-Belt: 45.5" Long, Exact Fit Premium Quality

from

$16.79
Dayco® High Performance V-Belt is the workhorse of the heavy-duty industry. Polyester cord provides maximum power transfer and tension holding capability for the life of the belt. The laminated construction helps absorb greater shock loads associated with diesel engines. These Dayco® High Performance V-Belt advantages translate into less downtime, lower maintenance costs, and increased dependability. Dayco’s High Performance V-Belt meets or exceeds SAE J636 and J637 specifications.

Product Features:
  • The High Performance V-Belt design delivers more flexibility and increases airflow around the belt, so it runs cooler and lasts longer than most competitive belts
  • Polyester cord provides maximum power transfer and tension holding capability for the life of the belt
  • The laminated construction helps absorb greater shock loads associated with diesel engines
  • 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

Dayco – V-Belt, Top Cog, Dayco (Part No.17415)

V-Belt, Top Cog, Dayco

from

$15.49
Dayco® High Performance V-Belt is the workhorse of the heavy-duty industry. Polyester cord provides maximum power transfer and tension holding capability for the life of the belt. The laminated construction helps absorb greater shock loads associated with diesel engines. These Dayco® High Performance V-Belt advantages translate into less downtime, lower maintenance costs, and increased dependability. Dayco’s High Performance V-Belt meets or exceeds SAE J636 and J637 specifications.

Product Features:
  • The High Performance V-Belt design delivers more flexibility and increases airflow around the belt, so it runs cooler and lasts longer than most competitive belts
  • Polyester cord provides maximum power transfer and tension holding capability for the life of the belt
  • The laminated construction helps absorb greater shock loads associated with diesel engines
  • 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, 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
See More

Dayco – V-Belt, Top Cog (Part No.17550)

V-Belt, Top Cog

from

$28.99
Dayco® High Performance V-Belt is the workhorse of the heavy-duty industry. Polyester cord provides maximum power transfer and tension holding capability for the life of the belt. The laminated construction helps absorb greater shock loads associated with diesel engines. These Dayco® High Performance V-Belt advantages translate into less downtime, lower maintenance costs, and increased dependability. Dayco’s High Performance V-Belt meets or exceeds SAE J636 and J637 specifications.

Product Features:
  • The High Performance V-Belt design delivers more flexibility and increases airflow around the belt, so it runs cooler and lasts longer than most competitive belts
  • Polyester cord provides maximum power transfer and tension holding capability for the life of the belt
  • The laminated construction helps absorb greater shock loads associated with diesel engines
  • 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.9440)

Automotive XL« High Capacity V-Belt

from

$23.99
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; 44 Inch Long, Exact Fit Premium Quality (Part No.17440)

Bottom Cog V-Belt; 44 Inch Long, Exact Fit Premium Quality

from

$16.99
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

Dayco – Bottom Cog V-Belt; 43.5 Inch Long, Exact Fit Premium Quality (Part No.17435)

Bottom Cog V-Belt; 43.5 Inch Long, Exact Fit Premium Quality

from

$21.29
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 – FleetRunner« Heavy-Duty V-Belt (Part No.9610HD)

FleetRunner« Heavy-Duty V-Belt

from

$43.99
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

Gates – Automotive XL« High Capacity V-Belt (Part No.9610)

Automotive XL« High Capacity V-Belt

from

$33.99
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

Gates – FleetRunner« Heavy-Duty V-Belt (Part No.9640HD)

FleetRunner« Heavy-Duty V-Belt

from

$46.99
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

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

Gates – FleetRunner« Heavy-Duty V-Belt (Part No.9440HD)

FleetRunner« Heavy-Duty V-Belt

from

$30.99
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

Gates – FleetRunner« Heavy-Duty V-Belt (Part No.9455HD)

FleetRunner« Heavy-Duty V-Belt

from

$43.99
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

Gates – FleetRunner« Heavy-Duty V-Belt (Part No.9412HD)

FleetRunner« Heavy-Duty V-Belt

from

$35.99
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

Gates – FleetRunner« Heavy-Duty V-Belt (Part No.9550HD)

FleetRunner« Heavy-Duty V-Belt

from

$47.99
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

Gates – Automotive XL« High Capacity V-Belt (Part No.9550)

Automotive XL« High Capacity V-Belt

from

$36.99
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
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Gates – FleetRunner« Heavy-Duty V-Belt (Part No.9435HD)

FleetRunner« Heavy-Duty V-Belt

from

$32.99
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
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Gates – Automotive XL« High Capacity V-Belt (Part No.9412)

Automotive XL« High Capacity V-Belt

from

$30.99
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
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Dayco – Bottom Cog V-Belt; 64 Inch Long, Exact Fit Premium Quality (Part No.17640)

Bottom Cog V-Belt; 64 Inch Long, Exact Fit Premium Quality

from

$23.99
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
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Gates – Notched V-Belt: 44.12" Long, 1 Strand, Exact Fit (Part No.9435)

Notched V-Belt: 44.12" Long, 1 Strand, Exact Fit

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$23.79
Notched V-Belt: 44.12" Long, 1 Strand, Exact Fit

Driveworks – Automotive V-Belt (Part No.44017)

Automotive V-Belt

from

$5.29
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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Driveworks – Automotive V-Belt (Part No.41517)

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
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Most Popular 1981 Mack MR Radiator Hoses

Customize your Mack with 3 Radiator Hoses products like Coolant Hoses and By-Pass Hoses, all priced under $4.79.

Gates – Green Stripe« Heavy-Duty Straight Heater Hose (Part No.28441)

Green Stripe« Heavy-Duty Straight Heater Hose

from

$4.79
Heavy-duty construction assures dependable operation in truck, bus and off-road equipment heater systems. For a maintenance free connection, install with Power-Grip SB clamps. Approved for marine applications.

Product Features:
  • Green Stripe construction provides best cost-per-mile economics
  • Abrasion-resistant cover
  • Engineered with materials to resist electrochemical degradation
  • Reduces water loss from water permeating the hose wall and cover
  • Exceeds SAE 20R1 Type EC (Class D-1 tube and cover Standard Wall)
  • Temperature Range: -40 Deg. F to +275 Deg. F (-40 Deg. C to +135 Deg. C)
  • Note: For a maintenance free connection, use PowerGrip SB clamps
  • Caution: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the foot. See store for details.
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Gates – Green Stripe« 2-Ply Straight Coolant Hose (Part No.24232)

Green Stripe« 2-Ply Straight Coolant Hose

from

$2.99
Stick hose designed for demanding heavy-duty coolant/air applications. Approved for marine applications.

Product Features:
  • Cover marked in 1 in. increments to facilitate approximate cut lengths, allows ┐custom-fit” installations
  • Engineered with compounds that resist electrochemical degradation
  • Approved for marine applications
  • Exceeds SAE 20R1 Type EC (Class D-1 Tube, and cover, Standard Wall)
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: For a maintenance free connection, use PowerGrip SB clamps
  • Caution: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the inch. See store for details.
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Gates – Green Stripe« 2-Ply Straight Coolant Hose (Part No.24220)

Green Stripe« 2-Ply Straight Coolant Hose

from

$1.49
Stick hose designed for demanding heavy-duty coolant/air applications. Approved for marine applications.

Product Features:
  • Cover marked in 1 in. increments to facilitate approximate cut lengths, allows ┐custom-fit” installations
  • Engineered with compounds that resist electrochemical degradation
  • Approved for marine applications
  • Exceeds SAE 20R1 Type EC (Class D-1 Tube, and cover, Standard Wall)
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: For a maintenance free connection, use PowerGrip SB clamps
  • Caution: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the inch. See store for details.
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Top Picks for 1981 Mack MR Heater Hoses

Upgrade Mack MRs with top-quality Heater Hoses parts, including 2 OEM and aftermarket selections for your 1981 model.

Gates – Premium Molded Coolant Hose (Part No.21381)

Premium Molded Coolant Hose

from

$24.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Specifically-engineered materials resist collapse under vacuum
  • Engineered to resist electrochemical degradation, the leading cause of hose failure
  • Pre-shaped to fit and to ensure perfectly sealed conditions
  • EPDM tube: synthetic fiber knit reinforcement: heat-, ozone- and chemical coolant-resistant EPDM cover
  • Meets requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: Gates recommends replacing hose clamps each time a new coolant hose is installed
  • Caution: Do not use for fuel or oil transfer applications
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Gates – Molded Heater Hose: EPDM, Direct Fit, 1" Inside Diameter (Part No.21824)

Molded Heater Hose: EPDM, Direct Fit, 1" Inside Diameter

from

$21.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Specifically-engineered materials resist collapse under vacuum
  • Engineered to resist electrochemical degradation, the leading cause of hose failure
  • Pre-shaped to fit and to ensure perfectly sealed conditions
  • EPDM tube; synthetic fiber knit reinforcement; heat-, ozone- and chemical coolant-resistant EPDM cover
  • Meets requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: Gates recommends replacing hose clamps each time a new coolant hose is installed
  • Caution: Do not use for fuel or oil transfer applications
See More

Top-Rated Belts and Hoses Brands For Your 1981 Mack MR

Shop for the best-rated brands offering Belts and Hoses and other products for your 1981 Mack MRs. Below you’ll find some of our best rated Belts and Hoses from Dayco and Driveworks, and more. Belts and Hoses from these brands that fit a 1981 MR start at just $4.99 and are rated as high as 5 stars. OEM and aftermarket Belts and Hoses don’t get more top quality, durable, and affordable than from the brands below.

Popular Dayco 1981 Mack MR Belts and Hoses

When it comes to maintaining or upgrading your 1981 Mack MR, using quality Belts and Hoses is essential to ensure durability and a perfect fit. Dayco ticks all of those boxes. We offer a wide selection of Dayco Belts and Hoses, specifically designed for the 1981 Mack MR. With over 6 Dayco brand Belts and Hoses in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $15.49, with an average price of just $20.59. Plus, with over 2 customer reviews and an average rating of 5 stars, you can trust that our Dayco Belts and Hoses will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

V-Belt, Top Cog
from
$28.99
This product is not rated

V-Belt, Top Cog

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Bottom Cog V-Belt; 43.5 Inch Long, Exact Fit Premium Quality
from
$21.29
This product is not rated

Bottom Cog V-Belt; 43.5 Inch Long, Exact Fit Premium Quality

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Bottom Cog V-Belt; 44 Inch Long, Exact Fit Premium Quality
from
$16.99
This product is not rated

Bottom Cog V-Belt; 44 Inch Long, Exact Fit Premium Quality

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Popular Driveworks 1981 Mack MR Belts and Hoses

Driveworks auto parts is one of the highest quality Belts and Hose brands in the market. Any 1981 Mack MR owner should feel confident when installing genuine Driveworks parts in their vehicle. To ensure the best fit and performance for your 1981 MR, Advance Auto Parts carries a full inventory of 3 Driveworks Belts and Hoses. Plus you will be keeping your Mack in peak condition while saving money because prices on these Driveworks Belts and Hoses range from $4.99 to $6.29, plus, with more than 1 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Belts and Hoses below will deliver on both quality and value.

Automotive V-Belt, Driveworks
from
$6.29

(1)

Automotive V-Belt, Driveworks

“These are just as durable as the major brands at less cost. I run these belts on several of my classic cars and have never been let down yet.”

Automotive V-Belt
from
$5.29
This product is not rated

Automotive V-Belt

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Automotive V-Belt
from
$4.99
This product is not rated

Automotive V-Belt

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FAQs for 1981 Mack MR Belts and Hoses

Which Belts and Hoses are best-sellers for 1981 Mack MRs?

Out of 27 Belts and Hoses that fit 1981 Mack MRs, the following parts are the top sellers:

What’s the price range for 1981 Mack MR Belts and Hoses?

Belts and Hose prices for the 1981 Mack MR start at $1.49 and go up to $47.99 for the most premium parts.

What’s the average price of a Belts and Hose for a 1981 Mack MR?

The average price for Belts and Hoses for the 1981 Mack MR is $23.61. Keep in mind the variety of part types within our Belts and Hose category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Belts and Hoses for other Mack MR model years?

Yes, we currently carry Belts and Hoses for 26 model years of Mack MRs between 1982 and 2007. Belts and Hoses are bought most frequently for the following model years: 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, and 1999.

What are the cheapest Belts and Hoses for my 1981 Mack MR?

The cheapest 1981 Mack MR Belts and Hoses we carry in stock are:

What are the top-rated Belts and Hoses that fit the 1981 Mack MR?

Out of 8 reviews by customers, our 1981 Mack MR Belts and Hoses have an average customer rating of . These are some of the highest-rated Belts and Hose types for the 1981 Mack MR and their top-rated products:

What types of Belts and Hoses do you sell for my 1981 Mack MR?

As of 2/5/25, these are some of the most in-demand types of Belts and Hoses for a 1981 Mack MR:

Can I get help with 1981 Mack MR Belts and Hose orders?

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

What is your return policy for Mack MR Belts and Hoses?

Advance Auto Parts keeps returns simple. For new Mack MR Belts and Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.