2004 Dodge Durango 4.7L Piston Specifications

Question

What are the factory standard piston specifications for 2004 Dodge Durango 4.7 L V8? I need to order replacement parts but I need a precise description of all parameters.

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John Fox 5 months 2021-02-04T22:15:10+00:00 2 Answers 28 views 1

Answers ( 2 )

  1. Pistons

    The specifications listed below identify piston specs precisely as stated by the 2004 Dodge Durango 4.7L factory service manual.

    DESCRIPTION METRIC STANDARD
    Diameter 92.975 mm 3.6605 in.
    Weight 366 grams 12.9 oz
    Ring Groove Diameter
    No. 1
    No. 2
    No. 3

    88.37 – 83.13 mm
    82.833 – 83.033 mm
    83.88 – 84.08 mm

    3.282 – 3.273 in.
    3.261 – 3.310 in.
    3.302 – 3.310 in.

    DESCRIPTION METRIC STANDARD
    Clearance In Piston 0.010 – 0.019 0.0004 – 0.0008 in
    Diameter 24.013 – 24.016 mm 0.9454 – 0.9455 in

    Piston Rings

    The 2004 Dodge Durango 4.7-Liter V8 piston rings are responsible for sealing the gap between the cylinder wall and the piston so as to seal the combustion chamber. The precise piston ring specs from the factory are listed below.

    DESCRIPTION METRIC STANDARD
    Ring Gap
    Top Compression Ring
    Second Compression Ring
    Oil Control (Steel Rails)

    0.20 – 0.36 mm
    0.37 – 0.63 mm
    0.25 – 0.76 mm

    0.0079 – 0.0142 in.
    0.0146 – 0.0249 in.
    0.0099 – 0.30 in
    Side Clearance
    Top Compression Ring
    Second Compression Ring
    Oil Ring (Steel Ring)

    .051 – .094 mm
    0.040 – 0.080 mm
    .019 – .229 mm

    0.0020 – 0.0037 in.
    0.0016 – 0.0031 in.
    .0007 – .0091 in.
    Ring Width
    Top Compression Ring
    Second Compression Ring
    Oil Ring (Steel Rails)

    1.472 – 1.490 mm
    1.472 – 1.490 mm
    0.445 – 0.470 mm

    0.057 – 0.058 in.
    0.057 – 0.058 in.
    0.017 – 0.018 in.
    0
    2021-02-04T22:28:34+00:00

    2004 Dodge Durango 4.7L Piston Specifications

    These are the precise piston specifications for a stock 2004 Dodge Durango 4.7-liter V8 engine. The information was obtained directly from the dealership service manual.

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