ZF 6HP28 6-Speed Automatic Transmission (Jaguar High Performance) · Land Rover / Jaguar · Expert rebuild service since 1987. Lifetime warranty. Free diagnostic.
2006–2014 Jaguar XKR-S (5.0 Supercharged), 2009–2014 Jaguar XFR (5.0 Supercharged), 2010–2014 Jaguar XJL Supercharged, 2010–2014 Land Rover Range Rover Sport Supercharged
| Configuration | 6-speed automatic RWD/AWD transmission (ZF 6HP28, supercharged V8 rating) |
|---|---|
| Gear Ratios | 1st 4.17:1 · 2nd 2.34:1 · 3rd 1.52:1 · 4th 1.14:1 · 5th 0.87:1 · 6th 0.69:1 · Rev 3.40:1 |
| Fluid Type | ZF LifeGuardFluid 6 |
| Fluid Capacity | 9.5 qts total, 4.5 qts service refill |
Supercharged 5.0L V8 applications generate extreme heat loads on the mechatronic unit. Failure is very common on high-mileage XKR-S and XFR units.
Symptoms: Limp mode, DTC P0750–P0795 series, MIL on
Track and aggressive use of Jaguar XKR-S and XFR wears clutch packs faster than standard street applications.
Symptoms: Slip under WOT, DTC P0734, RPM flare on 1-3 shifts
Supercharged V8 torque is near the ZF 6HP28 design limit under repeated WOT applications. TCC failure is common on high-mileage performance cars.
Symptoms: TCC shudder at cruise, DTC P0740
6HP28 rebuild (Jaguar/LR supercharged) replaces mechatronic unit, all clutch packs (upgraded SC spec), torque converter, and all seals. ZF LGF6 used.
ZF LifeGuardFluid 6 every 30,000 miles for supercharged applications. If tracking an XKR-S or XFR, change ZF fluid after each track event. Supercharged V8 torque is near the 6HP28 limit — upgraded clutch packs during rebuild are essential.
Jaguar XKR-S, XFR, XJL Supercharged, and Range Rover Sport Supercharged from 2006–2014.
At street power levels yes, but sustained track use stresses it. Upgraded clutch packs during rebuild significantly improve durability under supercharged V8 torque.
A full rebuild ranges $2,600–$3,400 at Chicago Transmission.
ZF LifeGuardFluid 6 — every 30,000 miles for supercharged applications.
With upgraded clutch packs from a rebuild, yes for street power. Extreme modifications approaching 700+ hp may require additional internal reinforcement.
Free diagnostic, written estimate, lifetime warranty. Chicago's ZF 6HP28 (Land Rover/Jaguar) rebuild specialists since 1987.
