Roadmax 4K245AP Serpentine Belt - Alternator or Power Steering To Alternator
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Roadmax
 Automotive V-Ribbed Belt (Standard)

Roadmax 4K245AP Serpentine Belt - Alternator or Power Steering To Alternator

Brand Roadmax 4K245AP
Position Alternator and Power Steering To Alternator
Material Epdm
Top Width .56
Top Width 14
Cord Material Polyester
Cross Section Designation K
Effective Length 24.65
Effective Length 626
Outside Circumference 25.215
Outside Circumference 640
Type Automotive v-ribbed belt (standard)
Rib Quantity 4
Product line Automotive V-Ribbed Belt (Standard)
Fits Buick, Ford, Mercury, Oldsmobile, and Pontiac · 29 vehicles

Standard V-ribbed belt. A practical replacement for everyday accessory drive service.

EPDM construction. Resists wear while helping maintain dependable belt performance.

Polyester cord reinforcement. Adds strength and stability for consistent operation.

Cross-references Airtex Fuel Pumps 6491, Bando 4PK620 and Dayco 5040248 for the same application. See all 41.

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Roadmax 4K245AP Serpentine Belt Overview

The Roadmax 4K245AP is an automotive V-ribbed belt built for drivers who want dependable replacement quality without stepping up to a premium-duty belt. Made with EPDM and polyester cord reinforcement, it is sized for accessory drive applications that route power to the alternator or power steering system.

Compatible With select 1982-1987 Buick, Ford, Mercury, Oldsmobile, and Pontiac applications, including Ford Escort, Mercury Lynx, and Pontiac Sunbird fitments. The Roadmax 4K245AP is a practical choice for routine belt replacement on older accessory drive systems.

Key Features

  • EPDM construction for standard automotive belt service
  • Polyester cord material for reinforcement and dimensional stability
  • 4-rib V-ribbed design for accessory drive applications
  • Cross section designation K
  • Effective length: 24.65 in. (626 mm)
  • Outside circumference: 25.215 in. (640 mm)
  • Top width: 0.56 in. (14 mm)

Product Details

Roadmax positions the 4K245AP as a standard automotive V-ribbed belt for budget-conscious buyers who still want a quality replacement part. Its EPDM belt material and polyester cord help maintain belt shape in everyday use, while the 4-rib profile supports common alternator and power steering drive layouts. This part number, 4K245AP, also cross-references Gates K040245 for the same application.

Fits 1987 Ford Escort, power steering to alternator; Fits 1987 Mercury Lynx, power steering to alternator; Fits 1984-1986 Ford Escort, alternator; Fits 1984-1986 Ford Tempo, alternator; Fits 1984-1986 Mercury Lynx, alternator; Fits 1984-1986 Mercury Topaz, alternator; Fits 1986 Pontiac Sunbird, alternator; Fits 1984-1985 Pontiac J2000 Sunbird, alternator.

Common Replacement Uses

  • Replacing a cracked or glazed serpentine belt
  • Correcting belt squeal from wear or loss of grip
  • Restoring alternator drive performance
  • Restoring power steering drive operation on listed applications
  • Addressing belt stretch or visible rib wear

Installation Notes and Tips

Verify belt routing, rib count, and measured length before installation. Inspect pulleys, tensioner condition, and accessory alignment so the new belt tracks correctly. Confirm the vehicle application by year, make, model, and position, especially on 1982-1987 Buick, Ford, Mercury, Oldsmobile, and Pontiac vehicles with accessory drive variations.

Quality Assurance

Roadmax markets this belt as a standard replacement option for customers who want dependable quality for everyday service. The EPDM construction and reinforced cord design support consistent fitment on the listed applications, including Ford Escort, Mercury Lynx, and Pontiac Sunbird models.

Related reading

This part fits 29 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
1987FordEscort2.0LL4DIESELPower Steering To AlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1987MercuryLynx2.0LL4DIESELPower Steering To AlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1986BuickSkyhawk1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1986FordEscort2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1986FordTempo2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1986MercuryLynx2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1986MercuryTopaz2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1986OldsmobileFirenza1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1986PontiacSunbird1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1985BuickSkyhawk1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1985FordEscort2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1985FordTempo2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1985MercuryLynx2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1985MercuryTopaz2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1985OldsmobileFirenza1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1985PontiacJ2000 Sunbird1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1984BuickSkyhawk1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1984FordEscort2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1984FordTempo2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1984MercuryLynx2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1984MercuryTopaz2.0LL4DIESELAlternatorW/A.C.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1984OldsmobileFirenza1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1984PontiacJ2000 Sunbird1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1983BuickSkyhawk1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1983OldsmobileFirenza1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1983PontiacJ20001.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1982BuickSkyhawk1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1982OldsmobileFirenza1.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1982PontiacJ20001.8LL4GASAlternatorAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
Directly replaces or cross-references 41 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Airtex Fuel Pumps — 6491Bando — 4PK620Dayco — 5040248Drive Rite — 5040248DRGates — K0402452X1101102X1119434K02454K2454PK06304PK6254PK6304PVK063014-0849-025-04024525-7062446K64077-9367-2245K4245K4MK248K4404-02454245164253200189200463200538201660104024540402451002253010026653100283875130029780815907A9091602180A-245K4E4EE 8620 EAE4FZ 8620 DJK4-250K2454