Piston for New Nissan MR20 / MR20DE 2.0L Engine

Engine Piston 12033-CK80A (New) — Fits Nissan MR20 / MR20DE 2.0L

The piston assembly for the Nissan MR20 (MR20DE/MR20DD) engine features an 84.0 mm bore, aluminum alloy construction, and a three-ring configuration (comprising a 1.2 mm top ring, a 2.0 mm second ring, and an oil ring). Its key technical specifications include a compression ratio ranging from 10.2:1 to 11.2:1, a piston stroke of 90.1 mm, and a piston pin diameter of approximately 19.99 mm.

Description

Bore: 84.0 mm (Standard)
Piston Material: ZL109 Aluminum Alloy
Compression Height (CD): Approx. 30.70 mm
Total Length (TL): Approx. 52.50 mm
Piston Skirt Diameter: 83.970–83.980 mm
Piston Pin Diameter: 19.989–19.995 mm
Piston Pin Length: 64.0 mm
Piston Ring Configuration: 1.2 mm (Top Ring) / 1.2 mm (Second Ring) / 2.0 mm (Oil Ring)
Piston Ring End Gap: Top Ring: 0.20–0.30 mm; Second Ring: 0.50–0.65 mm; Oil Ring: 0.15–0.45 mm

Common Part Numbers / Oversizes:
Standard Part Numbers: e.g., 12010-3TA0C, 12010-EM90A, or A2010-EN210.
Optional Oversizes: Typically available in +0.25 mm and +0.50 mm specifications for engine overhauls.