GMB 470-8630 Engine Timing Belt Tensioner

Brand GMB 470-8630
Drive Belt Pulley Diameter (1) (mm) 1
Pulley / Belt Type Serpentine & v-belt
Pulley Groove Quantity (1) 1
Pulley Material (1) Metal
Fits Toyota · 5 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 ACI 84018, Gates T41074 and 4708630 for the same application. See all 4.

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Engine Timing Belt Tensioner for Toyota MR2

GMB 470-8630 is an engine timing belt tensioner built for 1985-1989 Toyota MR2 applications. Manufactured to meet or exceed OEM specifications, it is a direct-fit service part for timing system maintenance on the MR2 platform.

Key Features

  • Engine timing belt tensioner for Toyota MR2 fitment
  • Manufactured to meet or exceed OEM specifications
  • Metal pulley construction for durability
  • Serpentine and V-belt pulley type
  • Single-groove pulley design
  • Cross-reference part number: Gates T41074
  • Part number: 470-8630

Detailed Description

This GMB timing belt tensioner is engineered for 1985-1989 Toyota MR2 models and supports proper timing belt operation in the engine valve train system. The metal pulley and single-groove design are specified for this application, and the pulley/belt type is listed for serpentine and V-belt use. If you are servicing a Toyota MR2 timing system, 470-8630 provides an OE-spec replacement option for the correct vehicle range.

This part cross-references Gates T41074 for the same application. The part number 470-8630 is also listed among interchange references for this timing belt tensioner application.

What It Helps Address

  • Timing belt tension loss
  • Noise from a worn tensioner pulley
  • Uneven belt tracking in the timing system
  • Service replacement for aging Toyota MR2 timing components
  • Restoring proper belt tension control on 1985-1989 Toyota MR2 models

Installation Notes and Tips

Verify engine application and belt routing before installation. Inspect the timing belt, related pulleys, and surrounding components during service, since a worn tensioner can affect belt stability. Confirm fitment against the vehicle year range before ordering, especially on 1985-1989 Toyota MR2 models.

Quality Assurance

GMB manufactures this component to meet or exceed OEM specifications, supporting consistent fit and function for timing system service.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1989ToyotaMR21.6LL4N/A
1988ToyotaMR21.6LL4N/A
1987ToyotaMR21.6LL4N/A
1986ToyotaMR21.6LL4N/A
1985ToyotaMR21.6LL4N/A
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACI — 84018Gates — T4107447086301350516010