ACDelco 6K942 Serpentine Belt

Serpentine Belt

Fits: Buick Park Avenue, Buick Riviera, Cadillac Fleetwood, Chevrolet Camaro, Chrysler Crossfire, Ford E-150 Econoline, Ford E-150 Econoline Club Wagon, Ford E-250 Econoline, Ford E-250 Econoline Club Wagon, Ford E-350 Econoline, Ford E-350 Econoline Club Wagon, Mercedes-Benz C240, Mercedes-Benz C280, Mercedes-Benz C300, Mercedes-Benz C320, Mercedes-Benz C350, Mercedes-Benz C43 AMG, Mercedes-Benz CL500, Mercedes-Benz CL55 AMG, Mercedes-Benz CLK320, Mercedes-Benz CLK430, Mercedes-Benz CLK55 AMG, Mercedes-Benz E320, Mercedes-Benz E430, Mercedes-Benz E500, Mercedes-Benz E55 AMG, Mercedes-Benz E550, Mercedes-Benz G500, Mercedes-Benz G55 AMG, Mercedes-Benz GL550, Mercedes-Benz ML320, Mercedes-Benz ML350, Mercedes-Benz ML430, Mercedes-Benz ML500, Mercedes-Benz ML55 AMG, Mercedes-Benz S430, Mercedes-Benz S500, Mercedes-Benz S55 AMG, Mercedes-Benz SL500, Mercedes-Benz SLK320, Oldsmobile 88, Oldsmobile 98, Pontiac Bonneville

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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.



  • Able to operate and accept misalignment in the accessory belt drive systems (ABDS) far greater than other serpentine belts
  • 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 - A1Yes, this may be indicative of an alignment issue or a failed tensioner.
FAQ - A2Yes, you may lose your power steering or stall out. Your car is not drivable when your drive belt fails.
FAQ - A3Yes, 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 - A4No, when the belt backing has been torn or cracked, the belt should be replaced.
FAQ - A5No, use the belt in the way it's listed in the ACDelco belts and hoses catalog.
FAQ - A6No, 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 - Q1Could an automotive belt tear during use?
FAQ - Q2Will I know immediately if an automotive belt tears?
FAQ - Q3Are there steps I can take to ensure a longer automotive belt life?
FAQ - Q4Is there a way to repair a torn automotive belt?
FAQ - Q5Can I use the same automotive belt for multiple uses?
FAQ - Q6Will a worn automotive belt affect gas mileage?
Good Maintenance Practices - S1 B1Do not use belt dressings to stop belt slippage or noise. These are oil based and may cause belt deterioration.
Good Maintenance Practices - S1 B2Never twist a belt more than 90 degrees during inspection. This may damage the tensile cords and cause premature failure.
Good Maintenance Practices - S1 B3Replace serpentine belts every 60,000 - 100,000 miles. Check vehicle's owner's manual.
Good Maintenance Practices - S1 B4Replace V-belts after 3 to 4 years, or every 36,000 to 48,000 miles.
Good Maintenance Practices - S1 B5Use an approved tension gauge to check belt tension.
Good Maintenance Practices - S1 B6Check 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.
Marketing Statement - Product LineBuilt to meet the latest demands, ACDelco's Belts and Hoses line includes automotive belts and hoses, tensioners, pulleys, and kits. ACDelco offers a wide variety of Professional premium, aftermarket parts, and a select offering of GM Original Equipment Belts that fit a variety of vehicles on the road today.
Marketing Statement - Sub BrandWhen it comes to replacing your Belts, ACDelco offers a full line of Professional, premium aftermarket Belt products. To help make part replacement simple and precise, ACDelco also offers pulleys, tensioners, and kits. ACDelco Professional, premium aftermarket belts fit both GM and Non GM vehicles.
Measurements13/16 in x 94 3/4 in
Mkt_State_Warranty_CALimited Lifetime Warranty as long as original purchaser still owns vehicle (Parts Only).
Mkt_State_Warranty_USLimited Lifetime as long as original purchaser owns vehicle. (Parts Only)
Signs of Wear & Troubleshooting - S1 B1Rubber 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 - S1 B2Glazing: shiny spots can indicate a slipping belt that isn't properly transferring power to accessories.
Signs of Wear & Troubleshooting - S1 B3Pilling: worn rubber can fill in grooves and cause noise, heat, vibration, and excessive wear.
Signs of Wear & Troubleshooting - S1 B4Abrasion: wear along the side could indicate misalignment due to a failed tensioner.
Signs of Wear & Troubleshooting - S1 B5Cracking: older neoprene belts crack as they near the end of their life cycle and often need to be replaced.
Signs of Wear & Troubleshooting - S1 B6Engine stops or backfires.
Signs of Wear & Troubleshooting - S1 B7The belt is producing a squealing noise.
Signs of Wear & Troubleshooting - S1 B8Headlights dim while driving.
Signs of Wear & Troubleshooting - S1 B9Loss of battery charge.



  • 1998-2000 Mercedes-Benz C280
  • 2000-2001 Mercedes-Benz S430
  • 2003-2004 Mercedes-Benz G55 AMG
  • 1990-1991 Ford E-350 Econoline Club Wagon
    • W/O A.C.
  • 1988-1988 Ford E-150 Econoline
  • 1995-1995 Oldsmobile 98
  • 2002-2005 Mercedes-Benz G500
  • 1988-1988 Ford E-350 Econoline
  • 1999-2000 Mercedes-Benz CL500
  • 1998-2003 Mercedes-Benz CLK320
  • 2001-2002 Mercedes-Benz CL500
    • Aug. 23, 2001 & Older
  • 1998-2003 Mercedes-Benz E320
  • 2001-2004 Mercedes-Benz SLK320
  • 1990-1991 Ford E-250 Econoline Club Wagon
    • W/O A.C.
  • 1988-1988 Ford E-350 Econoline Club Wagon
  • 2001-2002 Mercedes-Benz C240
  • 1990-1991 Ford E-350 Econoline
    • W/O A.C.
  • 2003-2003 Mercedes-Benz ML55 AMG
  • 2002-2005 Mercedes-Benz ML500
    • Chassis No. 429265 & Before
  • 2003-2003 Mercedes-Benz S500
    • Sept. 30, 2002 & Older
  • 1988-1988 Ford E-250 Econoline Club Wagon
  • 2002-2002 Mercedes-Benz S500
    • Aug. 23, 2001 & Older
  • 2003-2003 Mercedes-Benz E500
    • Chassis No. 135821 & Before
  • 2003-2005 Mercedes-Benz ML350
    • Chassis No. 429265 & Before
  • 2002-2002 Mercedes-Benz S430
    • Aug. 23, 2001 & Older
  • 2003-2003 Mercedes-Benz C320
    • Chassis No. 108312 & Before
  • 1989-1989 Ford E-150 Econoline Club Wagon
    • Under 8500 G.V.W.
  • 1995-1995 Oldsmobile 88
  • 1990-1991 Ford E-150 Econoline
    • W/O A.C.
  • 2003-2003 Mercedes-Benz E320
    • Chassis No. 135821 & Before
  • 1995-1995 Chevrolet Camaro
  • 2003-2003 Mercedes-Benz C240
    • Chassis No. 108312 & Before
  • 2010-2012 Mercedes-Benz C300
  • 2010-2012 Mercedes-Benz GL550
    • W/Variable Assist
  • 1999-2003 Mercedes-Benz CLK430
  • 2001-2002 Mercedes-Benz CLK55 AMG
  • 2010-2011 Mercedes-Benz C350
  • 1998-2000 Mercedes-Benz C43 AMG
  • 1993-1993 Cadillac Fleetwood
    • W/H.D. Cool.
  • 2000-2001 Mercedes-Benz S500
  • 1999-2001 Mercedes-Benz ML430
    • W/94 3/4" Belt O.C.
  • 2001-2002 Mercedes-Benz C320
  • 2000-2002 Mercedes-Benz ML55 AMG
    • W/94 3/4" Belt O.C.
  • 1990-1991 Ford E-150 Econoline Club Wagon
    • W/O A.C.
  • 1989-1989 Ford E-250 Econoline
    • Under 8500 G.V.W.
  • 1998-2003 Mercedes-Benz ML320
  • 1990-1991 Ford E-250 Econoline
    • W/O A.C.
  • 1989-1989 Ford E-150 Econoline
    • Under 8500 G.V.W.
  • 1989-1989 Ford E-350 Econoline
    • Under 8500 G.V.W.
  • 1998-2002 Mercedes-Benz E430
  • 1999-2002 Mercedes-Benz SL500
  • 1995-1995 Buick Riviera
  • 2004-2008 Chrysler Crossfire
  • 2001-2002 Mercedes-Benz CL55 AMG
    • Aug. 23, 2001 & Older
  • 2011-2011 Mercedes-Benz E550
  • 1988-1988 Ford E-150 Econoline Club Wagon
  • 1989-1989 Ford E-350 Econoline Club Wagon
    • Under 8500 G.V.W.
  • 1995-1995 Buick Park Avenue
  • 2003-2003 Mercedes-Benz S430
    • Sept. 30, 2002 & Older
  • 2001-2002 Mercedes-Benz S55 AMG
    • Aug. 23, 2001 & Older
  • 1988-1988 Ford E-250 Econoline
  • 1989-1989 Ford E-250 Econoline Club Wagon
    • Under 8500 G.V.W.
  • 1999-2002 Mercedes-Benz E55 AMG
  • 1995-1995 Pontiac Firebird
  • 1995-1995 Pontiac Bonneville
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