Parts for your 2008 Toyota Mark x-Drive belt

2008 Toyota Mark X drive-belt — what it does and when to replace

Yes, the 2008 Toyota Mark X uses a drive-belt. The X120-series Mark X runs GR-family V6 engines (4GR‑FSE 2.5L and 3GR‑FSE 3.0L), which use a timing chain for the cams and a separate V‑ribbed (serpentine) drive-belt for the accessories. Toyota’s engine repair manuals for the 4GR/3GR engines include procedures for “V‑ribbed belt – removal/installation,” the Owner’s Manual maintenance section calls for drive-belt inspections, and the Toyota EPC parts catalogue lists the V‑ribbed belt, tensioner and idlers for GRX120/GRX121 models. These technical sources confirm the drive-belt is absolutely relevant on the 2008 Mark X.

• Technical sources consulted: Toyota 4GR‑FSE/3GR‑FSE Engine Mechanical Repair Manual (V‑ribbed belt procedures)