GMB 420-3103 Engine Timing Belt Tensioner

Brand GMB 420-3103
Drive Belt Pulley Diameter (1) (mm) 1
Pulley / Belt Type Serpentine & v-belt
Pulley Groove Quantity (1) 1
Pulley Material (1) Metal
Fits Chrysler, Dodge, and Plymouth · 21 vehicles

OE-spec construction. Manufactured to meet or exceed OEM specifications.

Metal pulley. Built with a durable metal pulley for dependable operation.

Dual-belt compatibility. Works with serpentine and V-belt applications.

Cross-references Dayco 84140, Gates T43132 and 4203103 for the same application. See all 4.

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Engine Timing Belt Tensioner for Neon Applications

GMB 420-3103 is an engine timing belt tensioner built for Chrysler, Dodge, and Plymouth Neon applications. It is manufactured to meet or exceed OEM specifications, with a metal pulley and a serpentine & V-belt pulley type for dependable belt control in the valve train system.

Key Features

  • Engine timing belt tensioner for Neon fitments
  • Metal pulley construction for durability
  • 1-groove pulley design
  • Serpentine & V-belt pulley type
  • Built to meet or exceed OEM specifications
  • Part number 420-3103 for direct catalog reference

Detailed Description

This GMB timing belt tensioner, part number 420-3103, is made for 1995-2005 Dodge Neon, 2000-2002 Chrysler Neon, and 1995-2001 Plymouth Neon applications. It is a direct-fit engine timing belt tensioner for Neon models where stable belt tension is needed to maintain proper valve train operation. This part cross-references Dayco 84140 and Gates T43132 for the same application.

The metal pulley and 1-groove design support consistent belt tracking, while the OEM-spec manufacturing standard helps ensure the part matches the expected fit and function for these vehicles. If you are replacing a worn or noisy timing belt tensioner on a Dodge Neon, Chrysler Neon, or Plymouth Neon, GMB 420-3103 is a catalog-matched option for those model years.

What It Helps Address

  • Belt slack in the timing system
  • Noise from a worn tensioner pulley
  • Uneven belt tracking
  • Timing belt service replacement needs
  • Loss of proper belt tension on Neon engines

Installation Notes and Tips

Verify engine application by year and model before installation. Inspect the timing belt, pulleys, and related components during service, since a worn belt system can affect tensioner performance. Confirm pulley alignment and belt routing against the vehicle service information for the specific Neon application.

Quality Assurance

GMB manufactures this tensioner to meet or exceed OEM specifications, supporting consistent fit and function for the listed Neon applications. Part number 420-3103 is intended for buyers seeking an OE-style replacement for timing belt service on these vehicles.

This part fits 21 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2005DodgeNeon2.0LL4N/A
2004DodgeNeon2.0LL4N/A
2003DodgeNeon2.0LL4N/A
2002ChryslerNeon2.0LL4N/A
2002DodgeNeon2.0LL4N/A
2001ChryslerNeon2.0LL4N/A
2001DodgeNeon2.0LL4N/A
2001PlymouthNeon2.0LL4N/A
2000ChryslerNeon2.0LL4N/A
2000DodgeNeon2.0LL4N/A
2000PlymouthNeon2.0LL4N/A
1999DodgeNeon2.0LL4N/A
1999PlymouthNeon2.0LL4N/A
1998DodgeNeon2.0LL4N/A
1998PlymouthNeon2.0LL4N/A
1997DodgeNeon2.0LL4N/A
1997PlymouthNeon2.0LL4N/A
1996DodgeNeon2.0LL4N/A
1996PlymouthNeon2.0LL4N/A
1995DodgeNeon2.0LL4N/A
1995PlymouthNeon2.0LL4N/A
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 84140Gates — T4313242031034884320AA