Ordered 39-187 (installed in picture Crank 1) however the crank arm can't move any more yet the window still have a few more inches to shut.
If order 39-089 will it fix the problem and more closely match the original (picture Crank 2?) Or do I need to order a completely different part?
Will 39-089 Work?
Quick Learner from Nazareth, PA, USA
Jun 30, 2025 4:35 am
2 user uploaded images
4 Replies
Bob from SWISCO
Jun 30, 2025 3:24 pm
Thanks for posting. Sorry to hear the 39-187 did not work for you. Yes, the issue is the gear arm shape. The 39-187 and 39-188 have a 'W' shape gear arm, whereas the 39-089 and 39-090 have a Z-one. See below. Based on the appearance, the 39-089 should be what you need. Just make sure the link arm length matches the 5" shown below as well. To return the incorrect operator, see our Return Policy here. Let me know if you have further questions.
Dimensions for 39-089
Quick Learner from Nazareth, PA, USA
Jun 30, 2025 3:55 pm
Great! Thank you for your help! I appreciate it.
Bob from SWISCO
Jun 30, 2025 4:27 pm
My pleasure. Let us know if you need anything else.
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