Z-SEQ-5 Sequential dogbox

GearMotive Z-SEQ-5 Sequential Dogbox Transmission

Designed as a bolt-on sequential solution for the BMW ZF platform. Proven in competition. Built for fast, precise shifts.

The GearMotive Z-SEQ-5 Sequential Dogbox combines our proven dogbox technology with a purpose-built sequential shifting system. Developed and tested through years of real-world motorsport use, it provides a strong and reliable sequential transmission for drivers looking for fast gear changes, straightforward installation and proven GearMotive performance.

Direct ZF S5D replacement - 38kg - up to 1100 N m

Direct ZF S5D replacement

Bolt-on replacement for the original BMW ZF S5D transmission.

Compact, 38 kg

Weight with bell housing appr. 38kg.

Proven gearset

Gearset proven in applications producing over 1100 Nm.

Patented design

Patented design to improve power handling capabilities.

GearMotive Z-SEQ-5 Sequential for rally, circuit, drift and drag racing

The GearMotive Z-SEQ-5 Sequential Dogbox is based on the same proven gear technology as our well-known H-pattern dogbox. Its gears and shafts have been successfully used across Rally, Circuit, Drifting and Drag racing, with the gearset proven in applications producing over 1100 Nm. Two different ratio options make the transmission suitable for a wide range of motorsport disciplines.

The proven gearset is combined with a sequential shifting mechanism for fast, consistent and precise gear changes. A BMW ZF bellhousing is paired with our custom-manufactured rear housing, retaining the same overall dimensions as the original ZF rear housing. This allows the GearMotive Z-SEQ-5 Sequential to serve as a bolt-on replacement for the original BMW ZF S5D transmission.

The GearMotive Sequential Shifter installs in the original shifter location and features a self-centering mechanism and lightweight aluminium construction. Integrated shift-cut sensing enables flat-shift functionality when used with the required electronics.

The system can be combined with the GearMotive touchscreen Gear Display and Electronic Control Module (ECM), providing real-time gear position information and configurable parameters such as shift-cut sensitivity. The ready-made electronic system connects the shifter, gear position sensor and display and can be integrated with a compatible aftermarket ECU.

For high-power and demanding motorsport applications, a Heavy Duty input shaft option is also available.

From drifting and rally to circuit and drag racing, the GearMotive Z-SEQ-5 Sequential has proven itself in real competition – providing the performance of a true sequential transmission in a compact, ZF-based package.

Building with a 2JZ, LS or other non-BMW engine? See the GearMotive NG-SEQ-5 Sequential.

Check our References and Videos to see GearMotive gearboxes in real motorsport use.

Read more about the GearMotive Z-SEQ-5 Sequential Dogbox and its development on our Blog page.

Sequential Gearbox Features and Pricing

  • 5 Speed Sequential Dogbox gearset
  • Patented design to improve power handling capabilities
Extremely strong gearing,straight cut gears.
Straight 1:1 5th gear ratioprovides silent cruising and no power loss.
Uses ZF S5D OEM bell housingand is a bolt-on Fitment to replace BMW ZF S5D transmission
Gear position sensoris included in the gearbox
Weightwith bell housing appr. 38kg

Two Ratio options:

Ratio set 1 for Rally / Circuit, (Long 1st gear, smaller drop between gears):
Gear ratios 1-5:
12.23
21.71
31.38
41.16
51.00
Ratio set 2 for Drift / Drag / Rallycross (Longish 1st gear, bigger drop between gears):
Gear ratios 1-5:
12.73
21.83
31.42
41.16
51.00

Pricing (exclusive VAT, VAT 0%):

Sequential Gearkit and Rear Housing

6900 EUR

Bell Housing Installation in GearMotive

290 EUR

Sequential Shifter

590 EUR with shift cut 890 EUR

ECM and Display

Display with ECM and Wiring Kit

390 EUR

Bell Housing

Petrol 310z/320z 790 EUR, Diesel 260z/280z 590 EUR

  • Check all options below.

Z-SEQ-5 Sequential dogbox options

Sequential Shifter

Sequential shifter for GearMotive Z-SEQ-5 Sequential gearbox

  • Integrated shift cut option available
  • Handle for engaging N/R-gears
  • Self-centering
  • Billet manufactured from high-strength aluminium alloy
  • Light weight
  • Very easy installation

  • PRICE: Sequential Shifter 590 EUR with shift cut 890 EUR
Electric Kit (Display, ECM, Wiring)

Electric kit comes with: a touch screen display, ECM (Electric Control Module) and wiring kit.

  • Display shows the current gear position, and offers configuring options for gear position and shift cut adjusting
  • ECM is a control box combining the functions of display and shifter.
    ECM can be also wired into the after market ECU for gear display or shift cut functionality

    UPCOMING: ECM Will be able to control shift cut for stock ECUs
  • Wiring kit is very easy to install with ready made wires and connectors. Wiring kit combines Gearbox, Shifter, Display and ECM together

  • PRICE: Display, ECM and wiring kit 390 EUR
Bellhousing

Z-SEQ-5 Sequential dogbox requires ZF S5D model bell housing to fit it into the engine. Z-SEQ-5 Sequential is designed in a such way that bell housing is a part of the gearbox and oil space. This has allowed us to make the gearbox so small and is a bolt on to replace S5D stock box or existing GearMotive ZF dogboxes.

  • Z-SEQ-5 Sequential can be mated with any ZF S5D bellhousing. Suitable bell housing models are (Number in bell housing):
    Petrol models:
    S5D-310Z “ZF 1053401 097”
    S5D-310Z “ZF 1053401 107”
    S5D-320Z “ZF 1053401 148”
    S5D-320Z “ZF 1053401 131”
    S5D-320Z “ZF 1053401 089”

    Diesel models:
    S5D-260Z “ZF 1053401 098”
    S5D-260Z “ZF 1053401 187”
    S5D-280Z “ZF 1053401 146”
    S5D-280Z “ZF 1053401 127”
  • Customer can deliver own bell housing to GearMotive/eseller for installation or purchase one from GearMotive. “Certain stock parts are necessary to deliver together with the bell housing”.

  • PRICE: Petrol 790 EUR, Diesel 590 EUR
Heavy Duty (HD) Shafts

Heavy duty input shaft for high powered vehicles (over 500Hp/Nm)
Z10 35mm spline (ZF GS5-39/420G box spline)


  • PRICE: HD input shaft 250 EUR
    (Extra cost for the shaft upgrade together with box purchase)
Propeller Shaft Adapter

Prop adapter for easier fitment or replacement of existing gearbox with GearMotive ZF S5D model dogbox.

Please, request more information and tell us your current box model and yoke/prop shaft bolt pattern (78/96/105/110mm) and bolt dimension (12/14mm).

Check our youtube video:
Prop Adapter installation video


  • PRICE: GS5-39 replacement adapter (PCD 96/105/110) 290 EUR
  • Price: Getrag replacement adapter (PCD 78mm) 90 EUR
Engine Adapter

GearMotive can offer engine adapters from variety of our partners. Please, inform us your need for engine adapter and clutch kit, so we can source you a suitable adapter kit together with dogbox upgrade. Any engine type can be fitted to any transmission with an adapter kit!

We can also offer or recommend bell housing welding fitments from our partners.


  • PRICE: Adapter kit (800–1500 EUR)
  • PRICE: Welded bell housing modification starting at 400 EUR

Assembly and further information

Gearsets are assembled in GearMotive shop to customers transmission cases or cases can be bought from us. Some gearsets may have an option for assembly in GearMotive approved transmission shop or by customer itself. Please, contact us for information of current situation.

Prices are exclusive taxes and import duties, no shipping is included in pricing.

Interested in a GearMotive dogbox?