Piston Kit 80" Stock Big Twin — 80" displacement, 4-1/4" stroke, 3.520" bore

S&S CYCLE Piston Kit 80" Stock Big Twin — 80" displacement, 4-1/4" stroke, 3.520" bore – 79-80 Big Twin, 79-80 Touring

S&S CYCLE
0910-1934
106-5521

Forged pistons for 80" Stock Big Twin; complete kit with rings and wristpins.

Hurry! only 8 items left in stock.
€377.64
€474.71
Save €97.07
local_shipping In stock, ships in 2-3 days
Quantity

  Delivery policy

In stock items will be shipped within 1-3 days.

  Return policy

You can return the products within 14 days for a full refund, check our returns policy.

Forged piston kit engineered for 80" Stock Big Twin motors for superior strength and durability. 🔧

Includes a complete set of pistons, rings, wristpins, and clips.

Wrist pin deck height: 1.270". Made in the U.S.A. 🇺🇸

Requires connecting rods with a rod length of 7.440" (OEM #24281-74A); earlier 7.470" rods (OEM #24281-41A) can increase compression slightly and may cause clearance issues — check piston-to-head clearances carefully.

: 0910-1934
: 8 Items
In Stock

Data sheet

Brand
S&S CYCLE
Bore - Oversize
+0.020"
Bore Size
3,520"
Compression Ratio
9.0:1

Shipping Policy

Shipping Areas:

We ship to:

  • Spain (Peninsula and Balearic Islands)
  • European Union countries

We do not ship to the Canary Islands, Ceuta, or Melilla.

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  • Spain (Peninsula): 2–4 business days
  • Balearic Islands: 3–5 business days
  • EU countries: 3–7 business days depending on destination

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Free shipping may be offered for qualifying orders, as specified on our website.

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Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.

Delivery Issues:

If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.

Return & Withdrawal Policy

Right of Withdrawal:

In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.

To exercise this right, contact us via email or through our website, providing your order number and contact details.

Return Conditions:

  • Products must be unused, in original condition and packaging.
  • Return shipping costs are the responsibility of the customer, unless the product is defective or sent in error.
  • Refunds will be issued within 14 days of receiving the returned goods.

Items Excluded from Return:

  • Custom or personalized products
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If you want to return an item, please contact us first to give you detailed instructions.

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Electra Glide Big Twin 1979
Harley Davidson Electra Glide Big Twin 1980
Harley Davidson Electra Glide Sport Touring 1979
Harley Davidson Electra Glide Sport Touring 1980
Harley Davidson Super Glide Big Twin 1979
Harley Davidson Super Glide Big Twin 1979
Harley Davidson Super Glide Big Twin 1980
Harley Davidson Fat Bob Big Twin 1979
Harley Davidson Low Rider Big Twin 1979