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Carrillo A3720621-4 CP Pistons Arias Forged Piston and Ring Kit 4-Cylinder 74.5mm 1.3L

Manufacturer

Picture for manufacturer Carrillo

Part Number

A3720621-4
8 reviews
Sale Price

$558.64

Estimated ship date Friday, November 27

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The CP-Carrillo A3720621-4 is a complete forged piston and ring kit for 4-cylinder Toyota 1.3L (1350cc) engines, developed under the legendary Arias Pistons lineage. Originally founded in 1969, Arias Pistons built a decades-long reputation in high-performance engine building before being acquired by CP-Carrillo in 2017. This kit carries that heritage forward with precision-engineered forged aluminum construction and a complete ring and hardware package.

Key Features:

  • Bore: 74.500mm (2.933 in.) — stock bore size
  • Stroke: 77.40mm — stock stroke
  • Compression Height: 1.180 in.
  • Piston Style: Dish with two valve reliefs — +3.36cc head volume
  • Piston Material: Forged aluminum for superior strength-to-weight ratio
  • Rod Length: 4.646 in.
  • Wrist Pin Diameter: 0.708 in. — press-fit or floating configuration
  • Ring Pack: 1.00mm top / 1.20mm second / 2.80mm oil — gas nitrided top ring, nitride-faced ductile iron second ring
  • Includes: Pistons, rings, wrist pins, and wrist pin retainers — everything needed for a complete installation

Designed for stock-stroke Toyota 1.3L builds, this CP-Carrillo Arias piston and ring set delivers the precision tolerances and material quality expected from one of the most respected names in performance pistons. Whether you are rebuilding a worn engine or building a reliable street or track powerplant, the A3720621-4 provides a factory-accurate fitment with the durability advantage of a forged aluminum construction.

Sent an email 2 days ago about damage to the box upon delivery and opening the box and have not received a response yet!!!

Received as ordered. Thank you

Piece of cake.

Best prices and fast delivery

Came quick, no hassle

Very easy transaction.

I'm waiting on my refund. I was not happy that I couldn't talk to a real person regarding my return and my repurchase of the correct prop that I needed. So , if I get my total refund without a huge restocking fee(since the prop is new in original packaging and I bought another prop that is the correct size) then I will be extremely satisfied.

Tires in the add show studded tires but what I received was studdless tires . Will talk to THM Motorsport after this. But price was great

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