8-speed cvt automatic transmission planetary gear 1087240049
Key Features & Analysis:
-
Application: ZF 8HP series (likely 8HP45/55/70), supporting 2nd/4th/6th/8th gear ratios.
-
Design: Compound planetary set (Ravigneaux or Lepelletier type) with hardened 18–22 tooth sun gear and 42–46 tooth ring gear.
-
Material: Case-hardened 20MnCr5 steel (core hardness 58–62 HRC, surface >800 HV).
-
Critical Tolerances:
-
Backlash: 0.05–0.12mm (exceeding 0.15mm causes whine)
-
Runout limit: <0.03mm
-
-
Failure Modes:
-
Pitting/spalling (fatigue due to high torque cycling)
-
Bearing journal wear (if oil debris present)
-
Thermal distortion (if ATF exceeds 140°C)
-
Note: Requires ZF Lifeguard 8 fluid for proper lubrication. Common in Audi/BMW applications.



8-speed CVT automatic transmission gear
,planetary gear for transmission 1087240049
,CVT transmission parts with warranty
-
90301-48035 U660E U760E Transmission Planetary Gear Lock Nut for Camry Highlander ES350 RX350 Replacement
1. Product Overview This is 100% brand new high-carbon steel quenched planetary carrier lock nut , OEM Number: 90301-48035 . It is universally applicable to Toyota & Lexus U660E / U760E 6-speed automatic transmissions . This nut is a core locking fastener for the transmission front planetary carrier ... -
Remanufactured 8HP45/8HP-51 Transmission Planetary Gear 1101440021D for BMW 3 Series F30 F35
1. Product Overview This is a professionally remanufactured transmission planetary gear assembly , OE part number 1101440021D , designed for the 8HP45 / 8HP-45 / 8HP-51 8-speed automatic transmission . It is compatible with BMW 3 Series F30, F35, G20, G28.5 and other vehicles equipped with the 8HP ... -
FZ01-21-100 Remanufactured Gearbox Valve Body for Mazda CX-5/CX-4 PEZ6 Automatic Transmission
1. Testing & Quality Control Process Full Disassembly & Inspection : The valve body is completely disassembled, and all components are inspected for wear, damage, and defects. Deep Cleaning : All components are ultrasonically cleaned to remove debris, sludge, and contaminants. Component Replacement ...