SKU: 20-94-1000
PDS 8HP51 High Performance Transmission Master Seal Kit – AWD 2014-2023 BMW X3 X4 X5 xDrive
This comprehensive master seal kit rebuilds ZF 8HP51 AWD transmissions in select BMW performance models from 2014 to 2023. It supplies every seal gasket and o-ring needed for a full overhaul ensuring no leaks under high stress. Perfect for enthusiasts building reliable powertrains in X3 M40i X4 M40i X5 M50i xDrive vehicles.
Key Features
- Premium Viton Elastomers: Seals withstand 400°F heat and aggressive fluids preventing swelling or hardening during extended track sessions.
- Complete Master Kit: Over 100 pieces including piston seals gaskets o-rings and bushing covers for one-stop ZF 8HP51 AWD rebuild.
- AWD Optimized Design: Specific components for transfer case output seals handling torque loads in xDrive systems.
- High Pressure Tolerance: Reinforced construction supports line pressures over 300 PSI for modified turbocharged engines.
- Precision Components: Direct replacement sizing with performance upgrades reducing install time and boosting shift quality.
Product Notes
- Transmission must be fully disassembled for proper seal replacement.
- Inspect all hard parts and replace worn clutches during rebuild.
- Special order item typically ready in 2-3 business days.
Installation Notes
- Professional installation recommended.
- Lubricate all seals with ATF prior to assembly and follow ZF torque specs.
- Compatible with stock mounting hardware no modifications required.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2023 | BMW | X3 | M40i xDrive |
| 2018-2023 | BMW | X4 | M40i xDrive |
| 2019-2023 | BMW | X5 | M50i xDrive |
| 2020-2023 | BMW | X6 | M50i xDrive |
| 2014-2018 | BMW | X5 | xDrive40i |
| 2015-2019 | BMW | X6 | xDrive40i |
| 2017-2021 | BMW | X3 | 30i xDrive |
| 2012-2017 | BMW | 5 Series | 550d xDrive Touring |
Why Choose PDS?
- Backed by years of transmission rebuild expertise in motorsports.
- Uses aircraft-grade materials for everyday and race durability.
- Exact engineering matches ZF specs with added strength for mods.
Frequently Asked Questions
- Q: Will this kit fit my 2020 BMW X5 M50i xDrive?
A: Yes it covers all ZF 8HP51 AWD units in 2019-2023 X5 M50i xDrive models confirm via VIN if customized. - Q: What materials are in the seals?
A: Viton rubber o-rings and Torlon-reinforced piston seals for superior fluid and heat resistance over stock. - Q: What warranty applies and is DIY install possible?
A: 1-year limited warranty against defects professional install advised for warranty validity includes detailed instructions.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Securely boxed to protect components
- Weight: 2.2 lbs
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