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Engine Specific Harmonic Balancers
Chevrolet 250, 292 Cubic Inch L6, Single VeeChevrolet 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
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Drive Belts Poly-V Belt

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® Heavy Duty Belts

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
3PK0500Poly-V Belt
3PK0515Poly-V Belt
3PK0525Poly-V Belt
3PK0550Poly-V Belt
3PK0575Poly-V Belt
3PK0590Poly-V Belt
3PK0600Poly-V Belt
3PK0610Poly-V Belt
3PK0625Poly-V Belt
3PK0630Poly-V Belt
3PK0635Poly-V Belt
3PK0650Poly-V Belt
3PK0670Poly-V Belt
3PK0675Poly-V Belt
3PK0680Poly-V Belt
3PK0690Poly-V Belt
3PK0710Poly-V Belt
3PK0725Poly-V Belt
3PK0735Poly-V Belt
3PK0745Poly-V Belt
3PK0750Poly-V Belt
3PK0760Poly-V Belt
3PK0765Poly-V Belt
3PK0780Poly-V Belt
3PK0788Poly-V Belt
3PK0810Poly-V Belt
3PK0820Poly-V Belt
3PK0825Poly-V Belt
3PK0830Poly-V Belt
3PK0835Poly-V Belt
3PK0840Poly-V Belt
3PK0850Poly-V Belt
3PK0855Poly-V Belt
3PK0860Poly-V Belt
3PK0870Poly-V Belt
3PK0875Poly-V Belt
3PK0885Poly-V Belt
3PK0895Poly-V Belt
3PK0900Poly-V Belt
3PK0915Poly-V Belt
3PK0925Poly-V Belt
3PK0940Poly-V Belt
3PK0960Poly-V Belt
3PK0975Poly-V Belt
3PK0980Poly-V Belt
3PK0990Poly-V Belt
3PK1000Poly-V Belt
3PK1015Poly-V Belt
3PK1030Poly-V Belt
3PK1035Poly-V Belt