11709547 Bucket Seal Kit – 60x90mm I-UB-10 | Volvo BL70/BL71 OEM Cross-Reference

11709547 – The 60x90mm Bucket Seal Kit with Verified Cross-Model Fit

Here’s what parts databases confirm about this kit: 60mm rod diameter, 90mm bore, I-UB-10 seal profile . That’s the exact spec for the bucket cylinder on Volvo BL70 and BL71 backhoe loaders.

What Fits:
The compatibility data is clear across multiple sources:

• BL70 – Serial 10001–11488 

• BL71 – Serial 10021–16826 

• BL71 Plus – also confirmed compatible 

Some listings also reference the BL61 Plus as a compatible model , so if a customer is running a mixed fleet, this kit may cover more than one machine.

Why 60x90mm Matters:
The bucket cylinder does the heavy curling and dumping — it’s the one that gets cycled constantly throughout a workday. The rod seal takes the most punishment, handling high pressure on every curl while keeping contamination out. The wiper scrapes away mud and grit every time the rod retracts. When seals fail here, bucket control gets sloppy and hydraulic fluid starts showing up where it shouldn’t.

One Word of Caution:
We’ve seen a listing for a “BL70 bucket tilt cylinder” that shows a different spec — 60mm rod, 110mm bore . That’s not the same cylinder. So as always: check your machine’s serial number and confirm your cylinder dimensions before ordering.