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Wiseco K670M8950AP Forged Piston Kit Bore Nissan - 89.5mm QR25DE

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

K670M8950AP
10 reviews
Sale Price

$840.99

Estimated ship date Monday, November 23

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Wiseco K670M8950AP is a complete forged piston kit engineered for Nissan QR25DE 2.5L 16-valve engines. This professional-grade piston set delivers enhanced durability and performance through precision in-house forging and advanced coating technologies.

Key Specifications:

  • Bore: 89.5mm (3.524 inches) - 0.5mm oversize
  • Compression Ratio: 8.5:1
  • Compression Height: 32mm (1.260 inches)
  • Pin Diameter: 20mm
  • Piston Weight: 340 grams each
  • Dish Volume: -19.5cc

Advanced Features:

  • ArmorGlide skirt coating reduces friction and minimizes scuffing during break-in
  • Armor Plating on crown and pin bore increases hardness and durability of ring grooves
  • Prevents micro-welding of piston rings and combats detonation-related corrosion
  • Textured top face improves combustion characteristics
  • Specially designed valve pockets for multivalve applications
  • Steel nitride/napier XX ring package for superior sealing

Wiseco pistons are manufactured from dedicated forgings to provide optimal strength-to-weight ratio. Each piston undergoes extensive finishing processes to deliver race-proven reliability at an affordable price point. The kit includes replacement rings (8950XX series), S623 pins, and all necessary locks for complete installation.

Great prices

Quick and easy.

Order shipped without delay and Autoplicity had the best price. One of the problems was I did not get order confirmation email or could not get the order details in my account. Unfortunately, I registered after placing the order because the process was not that straight forward. They could not get my order details into the account. The tracking email was received little late. I wish they improve the system to add orders to the account and display the order progress.

Great!

I pieced a roof rack setup from all over the internet, and Autoplicity consistently beat every other vendor on price and shipping, even most auctions on eBay!<br>I found the site confusing when searching for items directly (why was the "Roof Racks & Cargo Carriers" dropdown empty, when Google showed their ads for tons of these products?). Since they always came up at the top of a Google Shopping search for products, using their website's internal navigation wasn't ever necessary.<br>Customer service guy was a little snippy, but I could have just been interrupting his lunch.

good

You need to display more info on clamp dimensions - having to visit other sites to get data necessary to fit to vehicle

I was looking for a present for my husband, and Autoplicity had the items way cheaper than any other site. And then I messaged them to see if they had any coupons available, and I was sent a coupon code right away. I will definitely shop here again for auto supplies.

I think I had to remind them to ship my item but once I did it shipped the next day. The package had the wrong label on it so I wondered if I got the right item but I did and all is well.

Checking out the product was simple enough.

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