PRODUCT DESCRIPTION
The ATP Z-339 Automatic Transmission Flex Plate is built to restore proper torque converter engagement and starter operation in Jeep 4.0L applications. Featuring a 164-tooth ring gear, weighted design, and OE-matched bolt pattern, this flex plate delivers reliable performance and durability. Engineered to meet factory specifications, it ensures smooth drivetrain operation and long service life.
FEATURES
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OE-SPEC DESIGN – Direct-fit replacement engineered for precise alignment and compatibility with factory torque converters and starters.
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164-TOOTH RING GEAR – Provides dependable starter engagement and consistent engine cranking.
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WEIGHTED (BALANCED) CONSTRUCTION – Includes added counterweight to match specific engine balance requirements.
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DURABLE STEEL BUILD – Manufactured for strength and long-term reliability under daily driving conditions.
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APPLICATION-SPECIFIC FITMENT – Engineered especially for Jeep 4.0L drivetrain configurations.
VEHICLE FITMENT
Jeep
PRODUCT ATTRIBUTES
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Linecode: ATP4
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Pitch Flywheels: 12 to 14
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Weight Added: Yes
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Diameter (in): 1.151
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Diameter (mm): 350.838
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Outside Diameter: 13.73 in
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Teeth / Tooth Quantity: 164
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Mounting Hole Quantity: 6
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Mounting Hole Diameter: 9.25 in
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Center Hole: 2.80 in
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Safety Rating: N/A
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SFI Approved: No
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SFI Certification Sticker Included: No
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Country of Origin: CN
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HTS Code: 8483506000
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UPC: 00740993044406
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VMRS Code: 045004008
INSTALLATION & NOTES
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Designed as a direct OE replacement for Jeep 4.0L automatic transmission flex plates.
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Ensure correct tooth count (164) and weighted design match the original part.
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Inspect starter gear and torque converter mounting surfaces before installation.
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Torque all flex plate bolts to manufacturer specifications using thread locker.