Drive Belts & Kits
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Overrunning Alternator Pulleys
Harmonic Balancers OEM Replacement
Performance Balancers & Kits
Engine Specific Harmonic Balancers
(single vee) 1000, 1500, 2500, 3000, 3500, Beaumont, Bel Air, Biscayne, Blazer, Brookwood, C&K Series, Camaro, Caprice, Ch ,1965-1973Chevrolet 283, 307, 327 Cubic Inch 6-1/4"Chevrolet 283-350 Small Block V8 7"Chevrolet 283-350 Small Block 7" To Suit Big Block Crank SnoutChevrolet 283-350 Small Block V8 8"Chevrolet 350 (5.7L) Small Block LT1 1993-1997 (Crank Flange Mount) Serpentine BeltChevrolet 400 Small Block 7" Light WeightChevrolet 400 Small Block V8 8"Chevrolet 396, 402, 427 Big Block V8 8"Chevrolet 454 Big Block V8 Light Weight Neutral Balance 7"Chevrolet 454 Big Block V8 8"Chrysler 225 Slant 6Chrysler 245-265 Hemi 6 cylChrysler 318, 340 Small BlockChrysler 360 V8Chrysler 392 Big Block HemiChrysler 383, 440 Big Block V8Ford 302, 351 Cleveland V8 Counterweight HubFord 351 Cleveland V8 4 Bolt, Hub Counter Weight, XW-XY GTHO Phase I, II, IIIFord 302, 351 Cleveland V8 Neutral BalanceFord 302, 351 Cleveland V8 Counterweight Hub for Scat Cranks 12.7 ozFord 289, 302 Windsor 3 Bolt (Countersunk Pulley Location) 28oz. in.Ford 289, 302 Windsor 3 Bolt (Raised Pulley Location)Ford 302, 351 Windsor V8 3 Bolt (Raised Pulley Location) 28oz. in.Ford 302, 351 Windsor V8 3 Bolt (Countersunk Pulley Location) 28oz. in.Ford 302, 351 Windsor 4 Bolt (Raised Pulley Location) 28oz. in.Ford 302 Windsor EFI V8 4 Bolt 34oz. in. with FlywheelFord 302 Windsor 4 BoltFord Windsor Small Block 6" 3 BoltFord 302, 351 Windsor Neutral Balance 4 BoltFord 390 Big Block FE V8 Internal BalanceFord 460 Big Block Internal BalanceFord Y-Block V8 1955-62 "Single Vee"Pontiac GTO 5.7L LS1, 6.0L LS2 V8 Serpentine BeltPontiac 287-455 Cubic Inch V8
CVT Scooter Belts
ATV Outdoor Activity Belts
Timing Belt & Kits
Timing Belt - Hydraulic Automatic Tensioners (HAT)
Water Pumps
Thermostats & Gaskets
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Hose Connectors & Kits

Drive Belts Polyrib

Dayco® developed the first POLY-V BELT® or Multirib belt for the Ford Mustang in the USA in 1979. The multiple rib and flat design provides better belt to pulley contact for less slippage than conventional V-belts. Multiple ribs also eliminate the need for matching and allows for controlled slippage in overload situations, such as when an A/C compressor engages. Today as in 1979 this belt sets the industry standard. The grooved design provides flexural stress relief for increased flexibility in both normal and backside bending. The grooves also render the belt less susceptible to environmental factors such as dust and splash induced slip. Dayco’s superior manufacturing technology uses rubber impregnated fabric backing that maximizes load carrying capability and minimizes noise often associated with competitors belts. The cord is saturated with a specially formulated treatment that ensures length and belt stability for the life of the belt.

DAYCO® Belt Heavy Duty

The Dayco serpentine belt is a diesel grade belt that features higher performance construction over conventional light duty belts in order to meet the high torque and power pulses exerted by today's demanding diesel engines. The specially treated cords within the belt resist stretching and ensure the length stability that is essential for drive systems on high output diesel and petrol engines.

The belt’s heavy duty construction provides additional integrity without sacrificing flexibility or belt-to-pulley compatibility. The Dayco serpentine belt is also engineered with high-grade EPDM compounds and is built to resist the heat and harsh under hood environments experienced in over-the-road and off-road conditions.

Part numbering system

Click on a column heading to sort the items in the list

Part numberDescription
20-1836Polyrib serial belt "6PK2205"
20-1837Polyrib serial belt "6PK2540"
20-3439Polyrib serial belt "6PK2218"
20-5355Polyrib serial belt "6PK2350"
20-7693Polyrib serial belt "6PK2380"
20-7694Polyrib serial belt "6PK2510"
20-7695Polyrib serial belt "6PK2410"
20-7856Polyrib serial belt "6PK2400"
20-8832Polyrib serial belt "12PK2370"
21-0914Polyrib serial belt "6PK2560"
3PK0500W-Profile polyrib belt
3PK0515Polyrib belt
3PK0525Polyrib belt
3PK0550W-Profile polyrib belt
3PK0560W-Profile polyrib belt
3PK0575Polyrib belt
3PK0600Polyrib belt
3PK0610Polyrib belt
3PK0625W-Profile polyrib belt
3PK0630W-Profile polyrib belt
3PK0635W-Profile polyrib belt
3PK0650Polyrib belt
3PK0670W-Profile polyrib belt
3PK0675W-Profile polyrib belt
3PK0680W-Profile polyrib belt
3PK0690W-Profile polyrib belt
3PK0710Polyrib belt
3PK0725Polyrib belt
3PK0735Polyrib belt
3PK0745Polyrib belt
3PK0750W-Profile polyrib belt
3PK0760W-Profile polyrib belt
3PK0765Polyrib belt
3PK0780Polyrib belt
3PK0788Polyrib belt
3PK0810W-Profile polyrib belt
3PK0812Polyrib belt
3PK0820W-Profile polyrib belt
3PK0825Polyrib belt
3PK0830Polyrib belt
3PK0840W-Profile polyrib belt
3PK0850W-Profile polyrib belt
3PK0855W-Profile polyrib belt
3PK0860W-Profile polyrib belt
3PK0870Polyrib belt
3PK0875W-Profile polyrib belt
3PK0885W-Profile polyrib belt
3PK0895W-Profile polyrib belt
3PK0900W-Profile polyrib belt
3PK0915Polyrib belt