GMB 448-1140 Engine Timing Belt Tensioner

Brand GMB 448-1140
Drive Belt Pulley Diameter (1) (mm) 1
Pulley / Belt Type Serpentine & v-belt
Pulley Groove Quantity (1) 1
Pulley Material (1) Metal
Fits Dodge and Mitsubishi · 9 vehicles

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

Metal pulley. Built with a durable metal pulley for dependable belt control.

Serpentine and V-belt. Works with both belt types for versatile timing belt tensioning.

Cross-references Four Seasons 85107, Gates T41050 and 4481140 for the same application. See all 4.

$25.67Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $25.67
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Timing Belt Tensioner for Mitsubishi and Dodge

GMB 448-1140 is an engine timing belt tensioner built to meet or exceed OEM specifications. It is a direct-fit replacement for select 1983-1985 Dodge and Mitsubishi applications, with a metal pulley and a serpentine and V-belt pulley profile for the listed vehicles.

Key Features

  • Engine timing belt tensioner for valve train service
  • Manufactured to meet or exceed OEM specifications
  • Metal pulley construction for durability
  • 1 mm drive belt pulley diameter specification as listed
  • 1-groove pulley design
  • Serpentine and V-belt pulley type
  • Part number 448-1140 for catalog and cross-reference use

Detailed Description

GMB 448-1140 is an OE-style engine timing belt tensioner for 1983-1985 Dodge Power Ram 50, 1983-1985 Dodge Ram 50, and 1983-1985 Mitsubishi Mighty Max. This timing belt tensioner is specified with a metal pulley and a single-groove pulley design, supporting the belt routing requirements of the listed applications. If you are servicing a Dodge Ram 50 timing belt tensioner or replacing a Mitsubishi Mighty Max timing belt tensioner, this part number 448-1140 provides a cataloged replacement option for those model years. This part cross-references Gates T41050 for the same application.

Common Problems This Part Can Address

  • Timing belt tension loss from a worn tensioner assembly
  • Belt noise caused by pulley wear or rough operation
  • Improper belt tracking from a damaged pulley surface
  • Service replacement for aging timing belt hardware on older trucks
  • Restoring correct belt tension during timing system repair

Installation Notes and Tips

Verify engine code, belt routing, and existing tensioner style before installation. Inspect the timing belt, related pulleys, and surrounding components at the same time, since wear in one part can affect the rest of the system. Confirm fitment for your exact Dodge Power Ram 50, Dodge Ram 50, or Mitsubishi Mighty Max application before service begins.

Quality Assurance

GMB states that this part is manufactured to meet or exceed OEM specifications, supporting consistent replacement quality for the listed applications.

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1985DodgePower Ram 502.3LL4N/A
1985DodgeRam 502.3LL4N/A
1985MitsubishiMighty Max2.3LL4N/A
1984DodgePower Ram 502.3LL4N/A
1984DodgeRam 502.3LL4N/A
1984MitsubishiMighty Max2.3LL4N/A
1983DodgePower Ram 502.3LL4N/A
1983DodgeRam 502.3LL4N/A
1983MitsubishiMighty Max2.3LL4N/A
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 85107Gates — T4105044811402431742020