100% Tested Used 8HP Planetary Gear Assembly for Cadillac CT6 CTS 8HP55A 8HP70 Transmission
This is a TRANSMESUN used 8-Speed Automatic Transmission Planetary Gear Assembly, a core precision component specifically designed for Cadillac CT6/CTS models equipped with 8HP series (8HP55A, 8HP55FL, 8HP70, 8HP70H, 8HP70X, etc.) 8-speed automatic transmissions.
As a critical part of the automatic transmission system, the planetary gear set is responsible for transmitting engine power, achieving multi-speed gear shifting, and ensuring smooth, efficient power output. It effectively resolves common transmission issues such as gear noise, vibration, slippage, and shifting delay, restoring the transmission's optimal performance and reliability.
All our used planetary gear assemblies undergo 100% strict professional testing (including dimensional inspection, wear testing, balance testing, and performance calibration) before shipment, guaranteeing perfect fitment, reliable operation, and full compliance with OEM standards. This assembly is an ideal cost-effective replacement for damaged or worn original planetary gears, perfect for transmission repair and overhaul.
This 8HP planetary gear assembly is 100% compatible with the following Cadillac vehicles:
- Cadillac CT6: 2015-2022 (including 2016, 2016-2017, 2016-2019, 2016-2020, 2016-2022)
- Cadillac CTS: 2013-2017 (including 2013-2015, 2013-2016, 2014-2017, 2015-2016)
- Note: Please confirm your vehicle model, production year, and transmission model (8HP series) before purchase to ensure a perfect fit.
- 100% OEM Original Used Part: Exact match for OE number 1087240049, no modification required for easy installation, perfect fit for Cadillac 8HP series 8-speed transmissions.
- 100% Professional Tested: All units undergo strict dimensional, wear, balance, and performance testing to ensure zero defects and reliable operation.
- Cost-Effective Solution: High-quality used planetary gear at a fraction of the cost of a new OEM unit, ideal for vehicle repair and replacement.
- Premium Material: Made of high-strength aluminum alloy for enhanced impact resistance, wear resistance, and durability, ensuring long service life under high-load engine conditions.
- Wide Compatibility: Fits multiple 8HP series transmission models (8HP55A, 8HP70, etc.) and Cadillac CT6/CTS models, covering model years 2013-2022.
- Fast Worldwide Shipping: Ready to ship within 1-5 working days, with multiple international express options for urgent orders.
- Negotiable Warranty: Flexible warranty terms to provide you with complete peace of mind.
- Low MOQ: Minimum order quantity of 1 piece, supporting small-batch purchases for repair shops, auto parts distributors, and individual customers.



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