SKU: 79837774245

Forged Pistons Wossner Audi A6 S4 B5 2.7L Bi-Turbo 81.50MM 8.50:1

Sale price$597.28 Regular price$663.65
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Forged Pistons Wossner Audi A6 S4 B5 2.7L Bi-Turbo 81.50MM 8.50:1Wossner pistons are made from dedicated forgings produced in house to give you a light weight piston with superior strength and optimal design. Being the multivalve piston technology leader, the line features specially designed valve pockets, complex dome and crown shapes, the steel nitride napier xx rings and optimized skirt profiles. Most OEM pistons have pin offset to keep the piston quiet. Only Wiseco does this with forged pistons. Complete with

Wossner pistons are made from dedicated forgings produced in-house to give you a light weight piston with superior strength and optimal design.

Being the multivalve piston technology leader, the line features specially designed valve pockets, complex dome and crown shapes, the steel nitride/napier xx rings and optimized skirt profiles.

Most OEM pistons have pin offset to keep the piston quiet. Only Wiseco does this with forged pistons.

Complete with rings, wristpins & locks, and specification sheets.

Product detailed specification

Bore size

81.50MM

Stroke

86.40mm

Wossner compression ratio (CR)

8.50:1

Rod Lgth.

154.00

Dome volume (CC)

 -9.60

Comp Ht.

  30.70mm

Pin diameter

   21mm

Fits for

 Audi A6 S4 B52.7L Bi-Turbo

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 79837774245

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Jeff P.
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★★★★★ 5
Quality part at reasonable price.
Had the exact same appearance as the Motorcraft kit. Installed the same and so far no issues at all. Cost on this was less than half of the Motorcraft kit.
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Reviewed in the United States on January 23, 2025
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James dean
Phoenix, US
★★★★★ 5
Great price
Great fit
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Reviewed in the United States on September 22, 2025
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brettjl
Lowell, US
★★★★★ 5
Filter that Fits
Perfect fit for my F350, 6.7L Powerstroke.
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Reviewed in the United States on August 22, 2025
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Holly Kennedy
West Palm Beach, US
★★★★★ 5
Fits Great!
Size: 8.8" x 9.3" x 1.2"
Have a 2014 Honda Pilot and this cabin air filter fit perfectly and was extremely easy to install. Got dirt cheap during a lightning deal! What can I say- 5 stars and just buy it!
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Reviewed in the United States on March 24, 2026
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Brian
Alexandria, US
★★★★★ 5
Higher quality than OEM Honda.
Size: 8.8" x 9.3" x 1.2"
I highly recommend this filter! This filter I had fast shipping and is easily installed. Side by side comparison with OEM Honda filter was amazing. I’ll definitely reorder this filter.
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Reviewed in the United States on March 19, 2026

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