Serpentine Belts

Serpentine Belt Overview
  • Composition: Reinforced rubber with multiple grooves
  • Purpose: Transfer rotational power from the engine’s crankshaft to peripheral devices
  • Devices Driven:
    • Alternator (charges vehicle battery)
    • Air conditioning compressor (provides cabin cooling)
    • Power steering pump (enables steering assistance)
    • Water pump (ensures engine cooling)
  • Benefits:
    • Single multi groove design improves efficiency and compactness
    • Replaces older multiple‑belt systems for simpler maintenance
    • Enhances overall reliability
  • Cross Reference Sizes: J, K, L, M serpentine belts
  • Compatible Brands: Gates, Dayco, Goodyear (and more poly belt cross references available)
  • Action: Click the link below to view the belt cross reference page for each size
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Serpentine Belt Cross Reference Charts

When selecting or replacing serpentine belts, it's crucial to choose the appropriate length and profile to maintain the right tension and ensure efficient operation. Always refer to the manufacturer's catalogs or data sheets to precisely match the belt specifications to the requirements of your machinery. Consider the sizes of the pulleys and the distances between shafts in your setup to make the most suitable choice. Check out our top 10 selling serpentine list.
J Series
SERPENTINE BELTS
Click for J Series Cross Reference Charts
K Series
SERPENTINE BELTS
Click for K Series Cross Reference Charts
L Series
SERPENTINE BELTS
Click for K Series Cross Reference Charts
M Series
SERPENTINE BELTS
Click for M Series Cross Reference Charts
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