lewmar mainsheet block replacement

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   Hi All, Great to be learning from you all from the posts so far. So I'm a long time listener.....first time caller. :-)

I'm replacing my main sheet blocks on my 375. 
The current original (2011) blocks are Lewmar, I think 70mm synchro. 
That version didn't have a shackle but a pin to secure it to the standup base.

I'm not keen to unscrew the base, from the coachhouse, which is manufactured with the base of the block integral to the hole unit. The opportunity appears to be to install a new block with the same slide-in pin rather than a shackle.

I was able to easily knock out the pin to remove the pin/swivel.

Any recommendation on a new and current block that has the same slide in pin assembly? The swivel section that inserts into the base is around 15mm.

Would appreciate some experience from previous 375 owners.

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Chad Members Profile Send Private Message Find Members Posts Add to Buddy List Sub Lieutenant Joined: 06 February 2026 Location: Sydney Status: Offline Points: 2	Post Options Post Reply Quote Chad Report Post Thanks(0) Quote Reply Topic: lewmar mainsheet block replacement Posted: 06 February 2026 at 08:51
	Hi All, Great to be learning from you all from the posts so far. So I'm a long time listener.....first time caller. :-) I'm replacing my main sheet blocks on my 375. The current original (2011) blocks are Lewmar, I think 70mm synchro. That version didn't have a shackle but a pin to secure it to the standup base. I'm not keen to unscrew the base, from the coachhouse, which is manufactured with the base of the block integral to the hole unit. The opportunity appears to be to install a new block with the same slide-in pin rather than a shackle. I was able to easily knock out the pin to remove the pin/swivel. Any recommendation on a new and current block that has the same slide in pin assembly? The swivel section that inserts into the base is around 15mm. Would appreciate some experience from previous 375 owners.

Captain Cook Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 23 May 2006 Location: Denmark Status: Offline Points: 1245	Post Options Post Reply Quote Captain Cook Report Post Thanks(0) Quote Reply Posted: 07 February 2026 at 08:27
	Try Advanced Search/Any Date......................and get a result like: https://www.myhanse.com/search_results_posts.asp?SearchID=20260207082248&KW=lewmar+mainsheet+block
	Freya H400 #27 (2006),2-cabin, 40HP 3JH4E, 3-blade Flexofold, Aries LiftUp Windvane, Exturn 300, Jefa DD1,Simrad NX40,Icom M603(VHF)+M802(SSB)

iemand Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 13 February 2004 Location: Germany Status: Offline Points: 1099	Post Options Post Reply Quote iemand Report Post Thanks(0) Quote Reply Posted: 07 February 2026 at 10:34
	go for Harken ESP Blocks. the problem is that the mastfoot pins are basically too small for the loads
	Hanse 312 MJ 2004 - Hanse 370e MJ 2007

Yoda Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 23 September 2022 Location: Devon, UK Status: Offline Points: 88	Post Options Post Reply Quote Yoda Report Post Thanks(0) Quote Reply Posted: 19 March 2026 at 07:30
	Have a look at these blocks, I am very happy with them. https://spars.co.uk/product-category/rutgerson-deck-hardware/rutgerson-blocks/toggle-head-blocks/ https://spars.co.uk/product-category/rutgerson-deck-hardware/rutgerson-blocks/rutgerson-60mm-blocks/ Yoda



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