ACDelco 5K402 | Serpentine Belt

Part Number
Serpentine Belt

Fits: 02-03 BMW X5, 05 Chevrolet Classic, 05-12 Chevrolet Malibu, 06-10 Pontiac G6, 06-09 Pontiac Solstice, 07-10 Saturn Sky, 08-09 Saturn Aura

Special Price $32.63 Regular Price $38.39
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Only 4 left
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Estimated Ship Date: 1 Business Day or Less
ACDelco Professional, premium aftermarket V-Ribbed Advanced Technology Belts serve as replacement belts for accessory belt drive systems (ABDS) and other serpentine belt applications. They are designed using advanced manufacturing technology and premium EPDM rubber construction to provide customers with superior accessory belt drive systems (ABDS) and new-vehicle-type performance. These premium aftermarket replacement v-ribbed advanced technology belts are manufactured to meet your expectations for fit, form, and function. ? WARNING: Cancer and Reproductive Harm -



  • Able to operate and accept misalignment in the accessory belt drive systems (ABDS) far greater than other serpentine belts
  • BMW;Chevrolet;Pontiac;Saturn
  • Is the belt of choice by professional technicians, lasting 50% to 60% longer than retail belts (low priced belts sold at car part stores)
  • Its flexible construction allows the belt to withstand billions of topside and backside bends resulting in a long belt life
  • Its precision dimension control of rib profile transmits load efficiently throughout the accessory belt drive systems (ABDS) allowing components to operate at optimum levels
  • Made with temperature and crack resistant EPDM rubber for a long life and quiet, dependable performance
  • Manufactured using quality materials to help provide long life, minimize noise, reduce loss of tension, and solve problem applications


FAQ - Answer 1Yes, this may be indicative of an alignment issue or a failed tensioner.
FAQ - Answer 2Yes, you may lose your power steering or stall out. Your car is not drivable when your drive belt fails.
FAQ - Answer 3Yes, the leading causes of belt failure are improper tension and misaligned pulleys. Both these conditions cause excessive heat which leads to belt failure. Have your belts checked every 3,000 miles for belt wear, proper tension, and pulley alignment.
FAQ - Answer 4No, when the belt backing has been torn or cracked, the belt should be replaced.
FAQ - Answer 5No, use the belt in the way it's listed in the ACDelco belts and hoses catalog.
FAQ - Answer 6No, remember the leading cause of belt failure is improper tension and misaligned pulleys. Improper tension will cause the belt to slip and you may notice a loss of performance from the air conditioning system as well as increased heat under the hood. High heat can lead to premature accessory failure.
FAQ - Question 1Could an automotive belt tear during use?
FAQ - Question 2Will I know immediately if an automotive belt tears?
FAQ - Question 3Are there steps I can take to ensure a longer automotive belt life?
FAQ - Question 4Is there a way to repair a torn automotive belt?
FAQ - Question 5Can I use the same automotive belt for multiple uses?
FAQ - Question 6Will a worn automotive belt affect gas mileage?
Good Maintenance Practices - Section 1 - Bullet 1Do not use belt dressings to stop belt slippage or noise. These are oil based and may cause belt deterioration.
Good Maintenance Practices - Section 1 - Bullet 2Never twist a belt more than 90 degrees during inspection. This may damage the tensile cords and cause premature failure.
Good Maintenance Practices - Section 1 - Bullet 3Replace serpentine belts every 60,000 - 100,000 miles. Check vehicle's owner's manual.
Good Maintenance Practices - Section 1 - Bullet 4Replace V-belts after 3 to 4 years, or every 36,000 to 48,000 miles.
Good Maintenance Practices - Section 1 - Bullet 5Use an approved tension gauge to check belt tension.
Good Maintenance Practices - Section 1 - Bullet 6Check for proper belt tension after 500 to 1,000 miles following belt installation. Recheck often, at least twice a year or every 6,000 miles.
Measurements21/32 in x 40 3/4
Programming RequiredNo
Rib Quantity5
Signs of Wear & Troubleshooting - Section 1 - Bullet 1Rubber Loss: (most common belt wear) a belt wear gauge measures rubber loss, which can result in reduced power transfer from the crank to the accessories.
Signs of Wear & Troubleshooting - Section 1 - Bullet 2Glazing: shiny spots can indicate a slipping belt that isn't properly transferring power to accessories.
Signs of Wear & Troubleshooting - Section 1 - Bullet 3Pilling: worn rubber can fill in grooves and cause noise, heat, vibration, and excessive wear.
Signs of Wear & Troubleshooting - Section 1 - Bullet 4Abrasion: wear along the side could indicate misalignment due to a failed tensioner.
Signs of Wear & Troubleshooting - Section 1 - Bullet 5Cracking: older neoprene belts crack as they near the end of their life cycle and often need to be replaced.
Signs of Wear & Troubleshooting - Section 1 - Bullet 6Engine stops or backfires.
Signs of Wear & Troubleshooting - Section 1 - Bullet 7The belt is producing a squealing noise.
Signs of Wear & Troubleshooting - Section 1 - Bullet 8Headlights dim while driving.
Signs of Wear & Troubleshooting - Section 1 - Bullet 9Loss of battery charge.

W/40 3/4" Belt O.C.



  • 2005-2005 Chevrolet Classic
  • 2006-2010 Pontiac G6
  • 2007-2010 Saturn Sky - Position: Alternator and Air Conditioning
  • 2008-2009 Saturn Aura
  • 2005-2012 Chevrolet Malibu
  • 2002-2003 BMW X5 - Position: Air Conditioning
  • 2006-2009 Pontiac Solstice - Position: Alternator and Air Conditioning
Customer Questions
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
Can a serpentine belt cause smoke?
Yes, a serpentine belt can cause smoke. A serpentine belt is an essential component of a vehicle's engine system. It drives various accessories such as the alternator, power steering pump, water pump, and air conditioning compressor. If the serpentine belt becomes worn, damaged, or misaligned, it can cause friction and generate smoke.
Why is my serpentine belt squealing?
The serpentine belt can squeal due to various reasons, including tension issues, worn-out belt, or a problem with the belt's pulleys.
Is my serpentine belt too tight?
If your serpentine belt is causing issues like excessive noise or accelerated wear on the pulleys, it may indicate that the belt is too tight.
Why did my serpentine belt come off?
Serpentine belts can come off due to factors such as belt wear, improper tension, misaligned pulleys, or a faulty tensioner.
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