SKU: 12-94-1000
PDS 8HP51 High Performance Transmission Hard Parts Kit – AWD – Stage 1 for BMW X3 (2013-2017) X4 (2014-2018) X5 (2014-2018)
Transform your ZF 8HP51 AWD transmission with the PDS Stage 1 hard parts kit designed for BMW X3 X4 X5 models. This kit upgrades critical internals for greater torque handling and shift firmness during aggressive driving. Expect longer transmission life in tuned or high-mileage vehicles.
Key Features
- HD 1-2-3-4 Clutch Pack: Increased friction material and plate count holds 20% more torque for consistent power delivery
- High-Strength Steels: Thicker wave springs and Kolene-treated plates resist warping under heat and load
- Billet Accumulator Pistons: Aluminum construction applies pressure evenly to reduce slip and improve clutch engagement
- Reinforced Clutch Hub: Forged design prevents spline stripping in AWD transfer case applications
- AWD-Specific Components: Tailored fit for integrated transfer case ensures seamless compatibility and no modifications needed
Product Notes
- Intended for transmission rebuild by experienced technicians
- Pair with PDS friction plates for full Stage 1 setup
- Heavy-duty box protects components during transit
Installation Notes
- Professional installation recommended.
- Transmission removal required. rebuild includes R&R of clutch packs and pistons
- Uses stock mounting hardware and valve body
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2017 | BMW | X3 | xDrive28i, xDrive35i |
| 2014-2018 | BMW | X4 | xDrive28i, xDrive35i, M40i |
| 2014-2018 | BMW | X5 | xDrive35i, xDrive40i |
Why Choose PDS?
- Specializes in ZF 8-speed transmission components
- Precision-machined parts from billet materials
- Tested in high-horsepower street and track builds
Frequently Asked Questions
- Q: Does this kit fit RWD models?
A: No, this PDS kit is engineered exclusively for AWD 8HP51 with transfer case - Q: What upgrades are in Stage 1?
A: Includes HD clutches, steels, pistons, and hub for up to 650 wheel horsepower - Q: What warranty coverage?
A: 1-year limited warranty against defects when installed by certified shop
Shipping & Handling
- Method: UPS or FedEx Ground
- Availability: Special order – ships within 3-5 business days
- Packaging: Secure heavy-duty box measuring 18x14x12 inches
- Weight: 28 lbs
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