How much does a BMW gearbox cost?
Image: BMW 1 Series GA8HP45 Automatic Gearbox for F20, F21, F22 for £324.89
When your BMW starts thumping into gear, slipping on acceleration, or flashing a transmission warning, it’s natural to ask: how much will a gearbox cost me in the UK? The short version: it depends on the gearbox type (manual, ZF 8-speed auto, DCT), the model it fits, and the mileage/condition. Below is a simple guide, plus real used examples from MT Auto Parts. So you can budget with confidence.
Why gearbox prices vary
Type: Manuals are simpler; autos (especially ZF 8-speed and DCT) are more complex and can cost more to buy and fit.
Application: An 8-speed for a 3 Series won’t be priced like one for an X3 or M car.
Mileage & condition: Lower miles → higher price (usually).
Supply & demand: Popular fitments move fast and hold value.
What most people pay (talking about parts only)
Think in about-ranges for used BMW gearboxes (supply only, no labour):
Manual (modern FWD 1/2 Series): ~£800
ZF 8-speed autos (3/4/5 Series, RWD): ~£500–£900
ZF 8-speed autos (X3/X4 AWD “8HP51X/GA8X51CZ” family): ~£700–£900
ZF 8-speed autos (earlier/50Z family on 4 Series RWD): ~£475–£535
DCT (M2/M3/M4, GS7D36SG): ~£900–£1,000
DCT (M5/M6, GS7D70SG, higher-mile examples): ~£700
These are BMW parts guide figures. Fitting, fluid, seals and coding are extra.
Let’s Take A Look Of MT Auto Parts (BMW Breakers ) BMW Gearbox Stock
X3/X4 — ZF 8-speed AWD (8HP51X / GA8X51CZ family)
13k–45k miles: ~£700–£900
(e.g., 8HP51X 13k miles ~£900; GA8X51CZ 45k miles ~£700)3 Series (G20/G21) — ZF 8-speed RWD (GA8HP51Z)
3.5k–21k miles: ~£580–£680
(e.g., 3.5k miles ~£680; 21k miles ~£585)4 Series (F32/F33/F36) — ZF 8-speed RWD (GA8HP50Z)
~52k miles / other listings: ~£475–£535
M2/M3/M4 — DCT (GS7D36SG)
~47k miles: ~£900–£1,000
M5/M6 — DCT (GS7D70SG)
~95k miles / similar high-mile units: ~£700
1/2 Series (F40/F44) — Manual (GS6-58DG, FWD)
~765 miles (very low-mile): ~£800
These snapshots show the real spread: mainstream ZF 8-speeds can start near £500 on RWD saloons, push £700–£900 for X-drive SUVs, while DCTs range from ~£700 (high-mile M5/M6) to ~£900–£1,000 (M2/M3/M4). Ultra-low-mile manuals and certain autos also command premium prices.
What does fitting add?
Budget ~£500–£1,200+ for:
Removal/refit
Fresh OEM-spec fluid and filter/pan where applicable
Seals/mounts and mechatronic sleeves (as needed)
Coding/adaptation resets so the new gearbox “learns” your car
Typical all-in (parts + labour): ~£1,800–£3,000 for most saloons; up to ~£3,500+ for SUVs/DCTs depending on spec and mileage.
Simple checklist before you buy
Match the exact part code (e.g., GA8HP51Z vs GA8X51CZ vs 8HP50Z; GS7D36SG vs GS7D70SG).
Confirm mileage and condition grade (Very Good/Good) and read the notes.
Ask about the warranty (even 14–30 days gives real peace of mind).
Plan coding/adaptations after install, modern BMWs expect it.
Use fresh fluid & seals: cheap insurance on an expensive job.
Final thoughts: budget smart, buy right
So, how much does a BMW gearbox cost? For most owners:
Parts-only: expect ~£500–£900 for many RWD ZF 8-speeds, ~£700–£900 for X3/X4 AWD units, ~£900–£1,000 for M2/M3/M4 DCT, and ~£700 for higher-mile M5/M6 DCT. Manuals on newer FWD 1/2 Series sit around ~£800.
All-in fitted (UK): allow ~£1,800–£3,000, with SUVs/DCTs potentially higher depending on spec and mileage.
If you need help finding the right gearbox & you are looking for the right used BMW parts model, message MT Auto Parts on WhatsApp or give us a call and we will offer you a free VIN matching. Keep your BMW running smarter.
Disclaimer: This article is based on our opinion and experience as independent BMW specialists. Prices, availability, and part details may vary over time. Always confirm compatibility and seek professional fitting before purchase.
