Start with identification, not a length guess
612600061295 is listed as a Weichai engine belt. Before replacement, compare the installed-belt marking and confirm the engine serial and accessory-drive layout. Similar belts can differ in length, section or intended routing.
Inspect the drive before fitting
Look for cracking, glazing, frayed edges or contamination.
Check pulley grooves, alignment and bearing play with the engine safely shut down.
Record the belt path before removal if the routing diagram is unavailable.
Set tension by the engine maker's stated method rather than deflection by feel alone.
After installation
Seat the belt in every groove and follow the service procedure for tension and run-in checks. Investigate repeated belt damage instead of replacing belts without checking pulleys and the tensioning system.
FAQ
Is there one universal tension value?
No. Use the specification for the exact engine and drive arrangement.
What if the old marking is unreadable?
Identify the engine serial and compare the drive path with service information.
Why check alignment?
Misalignment can cause edge wear and shorten belt life.
Compatibility: Confirm engine serial and accessory-drive configuration before purchase.
