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Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
  1. Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
  2. Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
  3. Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
  4. Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
  5. Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030
  6. Piston Assembly — Toyota 1GR (New Model) 4.0L — 13101-31030

PISTON & RING SET TOYOTA 1GR-FE V6 FOR 4RUNNER TACOMA LAND CRUISER 4.0L PETROL

The Toyota 1GR-FE 4.0L V6 engine (the newer version, typically equipped with Dual VVT-i technology) utilizes a piston assembly with a standard bore of 94.00 mm. Compared to older models, this piston features an upgraded design. This engine series is widely used in vehicles such as the 4Runner, Tacoma, Tundra, and FJ Cruiser, and its piston ring groove specifications are typically 1.20 mm × 1.20 mm × 2.00 mm.

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Description

Piston and Component Key Details:
Bore Size: The standard size is 94.00mm; an oversized specification of 0.25mm is also available.
Design Enhancements: Newer models (such as those intended for remanufacturing applications) incorporate several improvements, including: a 38% increase in oil return area, an anodized piston crown to enhance heat resistance, and a graphite coating applied to the piston skirt.
Component Composition: Typically sold as a complete kit, comprising the piston, piston pin, circlips, and piston rings.
Piston Ring Specifications: Constructed from ductile iron; the first ring (top ring) features a plasma-sprayed molybdenum coating; the oil ring utilizes a three-piece stainless steel structure.
Compression Ratio: The compression ratio for the 1GR-FE engine varies by model; newer Dual VVT-i variants typically feature a higher compression ratio (ranging from approximately 10.4:1 to 10.8:1, depending on the specific vehicle model).

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