HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 5030350 Serpentine Belt - Air Pump
Part #: 5030350

Dayco 5030350 Serpentine Belt - Air Pump

Air Pump
23 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$24.22Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick, Chevrolet, Oldsmobile, and Pontiac, 6000, Celebrity, Century, Cutlass Ciera, Cutlass Cruiser, Cutlass Supreme, Grand Prix, Lumina, and Regal
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Serpentine Belt for Buick, Chevrolet, Oldsmobile, and Pontiac

The Dayco 5030350 serpentine belt is engineered to meet the demands of various GM vehicles including Buick Century, Chevrolet Lumina, Oldsmobile Cutlass Ciera, and Pontiac Grand Prix. Designed with durable materials and precise specifications, this belt ensures consistent performance in accessory drive belt systems.

  • Constructed from EPDM with aramid reinforcement for enhanced durability
  • Top width of 0.40 inches and a K-section cross section
  • Effective length options of 35.04 inches (890.02 mm) and 35.70 inches (906.78 mm) outside circumference
  • Features 3 straight ribs with standard rib depth for optimal grip
  • Operates reliably within a temperature range of -45°C to 212°F (100°C)
  • Meets SAE J1459 and SAE J2432 industry standards

Technical Details and Material Composition

The Dayco 5030350 serpentine belt is made from EPDM rubber reinforced with aramid fibers, providing resistance to heat, wear, and stretching. Its K-section cross section and three straight ribs ensure proper alignment and tension on pulleys, reducing slippage and noise. The belt’s effective length and outside circumference measurements accommodate specific accessory drive configurations found in Buick, Chevrolet, Oldsmobile, and Pontiac models such as the Chevrolet Celebrity and Pontiac Grand Prix.

Compatible Vehicles and Applications

This serpentine belt is compatible with a range of GM vehicles, including:

  • Buick Century
  • Chevrolet Celebrity and Lumina
  • Oldsmobile Cutlass Ciera, Cutlass Cruiser, and Cutlass Supreme
  • Pontiac Grand Prix and Regal

It is designed to replace worn or damaged belts in accessory drive belt systems, ensuring proper operation of alternators, power steering pumps, and air conditioning compressors.

Common Issues Addressed by This Serpentine Belt

  • Eliminates belt slippage and squealing noises
  • Prevents premature belt wear and cracking
  • Maintains proper tension for accessory components
  • Reduces risk of overheating due to belt failure
  • Improves overall engine accessory performance

Installation Notes and Tips

When installing the Dayco 5030350 serpentine belt, ensure the belt routing matches the vehicle’s accessory drive diagram. Inspect pulleys and tensioners for wear before installation. Proper tension adjustment is critical to avoid belt damage and ensure longevity. Use appropriate tools to relieve tension and avoid twisting the belt during installation.

Quality Assurance and Standards Compliance

Dayco 5030350 serpentine belt complies with SAE J1459 and SAE J2432 standards, confirming its suitability for automotive accessory drive applications. The EPDM and aramid reinforced construction supports reliable operation within specified temperature ranges. While no explicit warranty information is provided, Dayco products are manufactured to meet industry quality benchmarks for durability and performance.

BrandDayco
Part Number5030350
MaterialEpdm, aramid reinforced
Top Width.40
ColorBlack
Effective Length35.04
Effective Length890.02
Outside Circumference35.70
Outside Circumference906.78
Rib Quantity3
Cross SectionK-section
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-42.7
Minimum Operating Temperature-45
Rib DepthStandard
Rib ProfileStraight rib
StandardsSae j1459, sae j2432

This part fits 23 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993BuickRegal3.1LV6Air PumpCalif.
1993ChevroletLumina3.1LV6Air PumpCalif.
1993OldsmobileCutlass Supreme3.1LV6Air PumpCalif.
1993PontiacGrand Prix3.1LV6Air PumpCalif.
1990BuickRegal3.1LV6Air Pump
1990ChevroletLumina3.1LV6Air Pump
1990OldsmobileCutlass Supreme3.1LV6Air Pump
1990PontiacGrand Prix3.1LV6Air Pump
1989BuickRegal3.1LV6Air Pump
1989BuickRegal2.8LV6Air Pump
1989OldsmobileCutlass Supreme3.1LV6Air Pump
1989OldsmobileCutlass Supreme2.8LV6Air Pump
1989PontiacGrand Prix3.1LV6Air Pump
1989PontiacGrand Prix2.8LV6Air Pump
1988BuickCentury2.8LV6Air Pump
1988BuickRegalAir Pump
1988ChevroletCelebrity2.8LV6Air Pump
1988OldsmobileCutlass Ciera2.8LV6Air Pump
1988OldsmobileCutlass Cruiser2.8LV6Air Pump
1988OldsmobileCutlass Supreme2.8LV6Air Pump
1988Pontiac60003.1LV6Air Pump
1988Pontiac60002.8LV6Air Pump
1988PontiacGrand PrixAir Pump

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

3K350

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.