Major Fitness Weight Stack Pin Extender New New

Need more weight for your toughest sets? The Major Fitness Weight Stack Pin Extender lets you go beyond the default weight stack limit—adding up to 59 kg of extra resistance using standard weight plates. Built for serious lifters and progressive overload, this smart add-on gives you more training capacity when it counts.

Note: Only fits B52 PRO/F22 PRO.
If your equipment is the B52 Standard or F22 Standard model, and you’ve already purchased our Weight Stack Set, this Weight Stack Pin Extender is also compatible for use.
Need more weight for your toughest sets? The Major Fitness Weight Stack Pin Extender lets you go beyond the default weight stack limit—adding up to 59 kg of extra resistance using standard weight plates. Built for serious lifters and progressive overload, this smart add-on gives you more training capacity when it counts.

Note: Only fits B52 PRO/F22 PRO.
If your equipment is the B52 Standard or F22 Standard model, and you’ve already purchased our Weight Stack Set, this Weight Stack Pin Extender is also compatible for use.

Regular price
$339.99
Sale price
$339.99
Regular price
$339.99
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Unit price
 per 
Pack: Pair (2 Pieces)

Pre-order. Will start shipping on February 16.2026

Pre-order. Will start shipping on February 16.2026

  • Review & Add To Cart Qty Price
  • Weight Stack Pin Extender | Pair (2 Pieces) +1 $339.99
  • Weight Stack Pin Extender | Single (1 Piece) +1 $169.99
$339.99
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Pre-order. Will start shipping on February 16.2026


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  • 35-day money back policy

  • 1-year warranty


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OVERVIEW

The Weight Stack Pin Extender is designed for users who’ve outgrown their built-in stack resistance. Simply insert the extender pin into the selector stack and load Olympic weight plates onto the end—adding up to 59kg of additional weight. It’s ideal for exercises like lat pulldowns, rows, and triceps pushdowns where more resistance is needed.

When not in use, the extender features a quick pin-in design for clean storage—just attach it to the top of your guide rod. Compatible with Major Fitness’s B52 Pro and F22 Pro machines, this attachment adds strength potential without adding bulk.

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Product Dimensions

Length

62 cm

Width

59 cm

Weight(Single)

3.7 kg

Weight(Pair)

9.4 kg

Weight Post Length

20.3 cm

Material

Steel