MASERATI QUATTROPORTE VI M156 8-speed automatic transmission
Maserati Quattroporte VI (M156) is equipped with the world-class ZF 8HP70 8-speed automatic transmission. This longitudinal unit is widely regarded as one of the best automatic gearboxes ever made, balancing lightning-fast shifts with the refinement expected of a flagship Italian sedan.
Because the Quattroporte M156 is available in both Rear-Wheel Drive (RWD) and All-Wheel Drive (Q4) configurations, the transmission housings and output sections differ significantly.
Technical Specifications
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Manufacturer: ZF Friedrichshafen
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Model: 8HP70 (Gen 1 & Gen 2)
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Torque Capacity: Rated up to 700 Nm (516 lb-ft).
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Engine Match: 3.0L V6 Twin-Turbo (S / S Q4) and 3.8L V8 Twin-Turbo (GTS / Trofeo).
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Key Feature: Integrated transmission control unit (Mechatronics) located inside the oil pan.
Transmission Variants by Model
| Model | Drivetrain | ZF Code / Notes |
| Quattroporte S / GTS | RWD | Standard 8HP70 with a single rear output flange. |
| Quattroporte S Q4 | AWD | Features a modified housing to bolt directly to the Magna Powertrain transfer case. |
| Quattroporte Diesel | RWD | 8HP70 with specific diesel torque converter and bellhousing. |
Professional Listing / SEO Description
If you are adding this to your high-end inventory at Buy Mustang parts Ltd, here is a professional, specialist-grade description:
Headline: Genuine OEM Maserati Quattroporte (M156) 8-Speed ZF Transmission – 8HP70
“For sale is a premium OEM Maserati Quattroporte VI (M156) 8-speed automatic gearbox, manufactured by ZF. This 8HP70 unit is the industry standard for high-torque luxury performance, offering seamless gear transitions and aggressive shift logic in Sport mode. Removed from a low-mileage donor vehicle and fully inspected for hydraulic pressure and electronic integrity.
Condition: Grade A. Clean fluid, no metal debris in the pan.
Fitment: 2013–2023 Maserati Quattroporte S, SQ4, and GTS models.
Note: Includes the integrated Mechatronics unit. Torque converter included.”
Technical Inspection & Installation Notes
As a specialist, ensure your team or the buyer follows these “Maserati-specific” protocols:
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Oil Pan / Filter: The ZF 8HP70 uses a plastic oil pan with an integrated filter. These are prone to warping or weeping over time. It is best practice to install a brand-new pan and gasket kit during the swap.
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Fluid Specification: Use ONLY ZF Lifeguard 8 or the official Maserati-branded fluid. Using incorrect fluid will cause “shudder” and premature clutch wear.
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Adaptive Learning: After installation, the vehicle requires a “Service Adaptation” via a diagnostic tool (Leonardo, Texa, or Maserati DEIS) to allow the TCU to learn the new clutch bite points.
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The “Park” Release: Ensure the manual park release cable (located under the car) is properly seated during installation, or the vehicle may remain stuck in Neutral.
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