Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHRYSLER2003300M V6-3.5L VIN MREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON RING, ENGINE
2003 Chrysler 300M V6-3.5L VIN M
Piston Ring, Engine
2003 Chrysler 300M V6-3.5L VIN MSECTION Piston Ring, Engine
Piston Rings
Ring Gap-Top Compression Ring 0.20-0.36 mm (0.008-0.014 in.)
Ring Gap-2nd Compression Ring 0.23-0.50 mm (0.0091-0.0197 in.)
Ring Gap-Oil Control (Steel Rails) 0.25-0.76 mm (0.010-0.030 in.)
Ring Side Clearance
Top and Second Compression Ring 0.04-0.08 mm (0.0016-0.0031 in.)
Oil Ring (Steel Rails) 0.038-0.184 mm (0.0015-0.0073 in.)
Ring Width
Top Compression Ring 1.17-1.19 mm (0.0461-0.0469 in.)
2nd Compression Ring 1.47-1.49 mm (0.058-0.059 in.)
Oil Ring (Steel Rings) 0.445-0.470 mm (0.0176-0.0186 in.)
Piston Ring Groove Diameter
No. 1 87.4-87.6 mm (3.441-3.449 in.)
No. 2 86.3-86.5 mm (3.397-3.4055 in.)
No. 3 85.8-86.0 mm (3.378-3.385 in.)
Ring Gap-Top Compression Ring 0.20-0.36 mm (0.008-0.014 in.)
Ring Gap-2nd Compression Ring 0.23-0.50 mm (0.0091-0.0197 in.)
Ring Gap-Oil Control (Steel Rails) 0.25-0.76 mm (0.010-0.030 in.)
Ring Side Clearance
Top and Second Compression Ring 0.04-0.08 mm (0.0016-0.0031 in.)
Oil Ring (Steel Rails) 0.038-0.184 mm (0.0015-0.0073 in.)
Ring Width
Top Compression Ring 1.17-1.19 mm (0.0461-0.0469 in.)
2nd Compression Ring 1.47-1.49 mm (0.058-0.059 in.)
Oil Ring (Steel Rings) 0.445-0.470 mm (0.0176-0.0186 in.)
Piston Ring Groove Diameter
No. 1 87.4-87.6 mm (3.441-3.449 in.)
No. 2 86.3-86.5 mm (3.397-3.4055 in.)
No. 3 85.8-86.0 mm (3.378-3.385 in.)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.