Piston Set — Opel Astra, Insignia, Meriva 1.6 16V (55561413) — Ø79.50
The piston assembly suitable for the Buick Excelle and Chevrolet Cruze (LLU 1.6T engine) features key specifications including: a bore of 79mm, an overall height of 45.1–45.2mm, a compression height of 27.5mm, and a piston pin diameter of 19mm. These high-strength aluminum alloy pistons are typically fitted with a 1.2mm top compression ring, a 1.2mm second compression ring, and a 2.0mm oil ring, and are specifically engineered for high-pressure turbocharged operating conditions.
Description
Piston Assembly Key Specifications (LLU 1.6T):
Engine Model: LLU (1.6L Turbocharged)
Cylinder Bore: 79 mm
Compression Height: 27.5 mm
Piston Pin Diameter: 19 mm
Piston Pin Length: 53 mm
Total Piston Length: 45.1–45.2 mm
Piston Ring Dimensions: 1.2 mm (Top Ring) / 1.2 mm (Second Ring) / 2.0 mm (Oil Ring)
Material: ZL109 Aluminum Alloy
Common OEM Part Numbers: 55561413, 55571126, 93188426
