845RE / 850RE (ZF 8HP45 / 8HP50) Custom Rebuild Kit | Select Your Parts

Product Description

Build your own 845RE / 850RE rebuild kit: choose the parts that match the transmission on your bench and leave out what you don't need. This builder has 12 choices, all optional, so the kit holds only what you pick.

Brands offered in this kit include Alto, Raybestos, Exedy, Sonnax, TransGo, Lubegard, Dr. Tranny and ATSG.

845RE or 850RE? Chrysler's transmission sales code tells them apart: DFL is the 845RE (about 2012/2013-2018) and DFT is the 850RE (about 2020 and later: 2020-2025 Ram 1500, Durango, Wrangler and Gladiator, 2020-2024 Grand Cherokee and 2020-2023 Charger, Challenger and 300, per Chrysler TSB 21-009-25). A choice whose label names a transmission (for example "850RE only" or "not 850RE") fits only the transmission it names.

What you can choose

• Overhaul Kit: Overhaul Gasket & Seal Kit (845RE / 8HP45 only, not 850RE)
• Piston Kit: OE Quality Standard Material (845RE / 8HP45 only); High-Performance Red (845RE / 8HP45 only)
• Clutch Friction Plates: Alto Products Corp (215752A) - 845RE (Chrysler version), not 850RE; HT | Raybestos - 845RE / 8HP45 only, not 850RE; GPZ | Raybestos - 845RE / 8HP45 only, not 850RE; Exedy; GPZ | Raybestos - 850RE only, not 845RE; HT | Raybestos - 850RE only, not 845RE; Exedy - 850RE only, not 845RE; Alto Products Corp (215752) - 845RE / ZF 8HP45, not 850RE
• Steel Plates: OE Quality Steel Module (SPK845RE) - 845RE; Steel Plate Module (SPK8HP45) - ZF 8HP45 / 8HP50
• HD "D" Clutch Backing Plate: HD "D" Clutch Backing Plate Sonnax (35570-50)
• Valve Body Kit: Valve Body Zip Kit Sonnax (ZF8-ZIP) - 845RE only, not 850RE; SHIFT KIT Valve Body Repair Kit GEN-1 TransGo (SK8HP) - 845RE only, not 850RE; Valve Body Zip Kit GEN-2 Sonnax (ZF8-GEN2-ZIP) - 850RE only, not 845RE
• Bushing Kit: Bushing Kit
• Oil Pan / Filter: Oil Pan Filter Assembly (ZF 8HP45 pattern, 2012-early 2013); Main Oil Filter (68417054AB); Oil Pan Filter Assembly 845RE / 850RE (2013-UP)
• Reducing Valve Kit (850RE only): Reducing Valve Kit Sonnax (35740-38K) - 850RE only, not 845RE
• Bonded Valve Body Plate (850RE only): Bonded Valve Body Plate (52854971AA) - 850RE only, not 845RE
• Tech Book: ATSG Tech Service Rebuild Manual (ZF 8HP45/55/70/90)
• Assembly Lube: Dr. Tranny Transmission Assembly Lube - Firm Green; Dr. Tranny Transmission Assembly Lube - Blue Soft; Dr. Tranny Transmission Assembly Treatment by Lubegard; Sonnax Slippery Stick O-LUBE

Not sure which option fits? Contact us with your vehicle's year and model and your transmission's identification and we'll help you choose.