The Lift That Lifts — 11709617 Seal Kit Unlocks Your Volvo’s Full Loader Capacity
When you’re moving a bucket of wet dirt or hoisting a pallet of materials, the loader lift cylinders are the muscles doing the heavy lifting. These twin cylinders on the BL61 are friction-welded into the loader frame and work together with a self-levelling system to deliver fast cycle times and stable bucket control .
When seals in these lift cylinders start to fail, you’ll notice the loader arms drooping under load, slower lift speeds, and oil streaks on the cylinder rods. The fix is straightforward: replace the seals with this 11709617 kit.
What the Data Confirms:
Multiple parts databases cross-reference this part number with the I-UB-10 seal profile, running a 50mm rod diameter and 85mm bore . It’s the same seal specification shared across BL61, BL70, and BL71 series lift cylinders — one kit covers a family of machines .
Compatibility Reference:
This part is verified across the following Volvo models and serial ranges:
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BL61 (Serial 10001–11458) — Primary fitment
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BL61 Plus (Serial 10001 and after) — Confirmed fit
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BL70 (Serial 10001–11488) — Verified
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BL71 (Serial 10021–16826) — Confirmed
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BL71 Plus (Serial 10001–10494) — Verified
What You Get:
A full set of rod seals, piston seals, O-rings, wipers, and backup rings — everything required for a single lift cylinder rebuild. PU rod seals resist abrasion from dirt and contamination; NBR O-rings handle the heat cycles of continuous loader work .
⚠️ Critical Fitment Check:
The BL61 has two distinct loader lift cylinder configurations depending on serial number. Confirm your cylinder’s rod/bore dimensions match 50mm x 85mm before ordering. If your machine runs a different spec, you may need a different part number.
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