SKU: 20168313236

Allen A5166 STANDARD Height Mainsheet Jammer

Sale price$92.42 Regular price$102.69
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

Allen A5166 STANDARD Height Mainsheet JammerStandard height mainsheet jammer. The Allen A5166 standard height mainsheet jammer with 3 options: 1. Mainsheet base only with NO mainsheet Ratchet Block 2. Mainsheet base WITH a 60mm Pro Ratchet Block. (As used on the RS500 as an example) 3. Mainsheet base With a Fiddle Pro Ratchet Block Designed for use on both dinghies and keelboats which require a central jammer. Featuring a cold forged bearing system which has a ball locating groove for smooth

Standard height mainsheet jammer.

The Allen A5166 standard height mainsheet jammer with 3 options:

1. Mainsheet base only with NO mainsheet Ratchet Block

2. Mainsheet base WITH a 60mm Pro-Ratchet Block. (As used on the RS500 as an example)

3. Mainsheet base With a Fiddle Pro-Ratchet Block

Designed for use on both dinghies and keelboats which require a central jammer. Featuring a cold forged bearing system which has a ball-locating groove for smooth rotation, whilst preventing the lateral movement of the arm. The arm can be set to rotate at 180, 220 or 360 degrees by adjusting the stopper pins on the underside of the arm.The jammer arm angle has been carefully optimised to ensure easy cleating and uncleating when required.

Includes an aluminium cam cleat with mega pro-lead.

The arm can be set to rotate in 180, 220 or 360 degrees by adjusting the stopper pins on the underside of the arm. The arm swivel features two rows of ball bearings to ensure a super smooth rotation of the jammer arm.

Includes A..76-496 aluminium cam cleat with mega pro-lead.

Allen A.5166 Properties

Number of Base Fixing Holes 4 no.
Fixing Hole Size M5
Base Fixing Hole Spacing 19.5 mm
Overall Height 145 mm
Maximum Working Load Mm 600 kg
Weight 368 grams

 

For more dimensions, please see the Engineering drawing HERE

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20168313236

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Rayan McLeod
Alexandria, US
★★★★★ 3
Worth the price
Size: 10, Color: Tan
A little tie on the valley,
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Reviewed in the United States on May 20, 2026
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Thomas Micheal Bennett
Belleville, US
★★★★★ 5
Good
Size: 9, Color: Black
Good good good
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Reviewed in the United States on December 24, 2025
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daira flores
Waukegan, US
★★★★★ 5
Le quedaron bien a mi hijos
Size: 8.5, Color: Black
El zapatos ese buenísimo
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Reviewed in the United States on December 3, 2025
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Shredder
Draper, US
★★★★★ 5
Comfortable and Classic Dress Shoes That Look Great All Day
Size: 12, Color: Cognac
These dress shoes have been a great addition to my wardrobe. Right out of the box, they felt comfortable thanks to the cushioned foam insole. I can wear them for long days at work or events without my feet feeling sore, which is something I really appreciate. The faux leather upper looks polished and well-made. The cap-toe design and subtle contrast stitching give the shoes a classic, professional appearance that pairs perfectly with dress pants or a suit. They have a clean, timeless style that never feels outdated. The fit is true to size, and the lace-up closure provides a secure and adjustable fit. I also like the stability of the stacked heel and the non-slip sole, which gives me confidence when walking on different surfaces. Overall, these shoes deliver both comfort and style. They look sharp, feel supportive, and hold up well with regular use. I am very happy with this purchase and would definitely recommend them to anyone looking for reliable, classic dress shoes.
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Reviewed in the United States on December 18, 2025
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Dominic Castellanos
Battle Creek, US
★★★★★ 5
Appearance
Size: 8, Color: Tan
Looks better in person
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Reviewed in the United States on May 31, 2026

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