BMW Z4 Manual Transmission for Sale | OEM Used Premium Getrag 6-Speed Manual
$1,850.00
At a Glance
- Condition: OEM used, all 6 gears shift-tested before shipping
- Availability: In stock, BMW Z4 manual transmission available across multiple chassis generations
- Shipping: Free shipping to all 50 states via ground freight, 5 to 10 business days
- Z4 chassis generation verified (E85 / E86 2003-2008, E89 2009-2016, G29 2019-current)
- Engine pairing confirmed (M54 inline-6, N52 inline-6, N54 twin-turbo, N20 turbo inline-4, B58 turbo inline-6, etc.)
- Getrag variant identified (GS6-37BZ / GS6-45BZ / GS6-53BZ depending on torque rating and application)
- All 6 forward gears function-tested
- Synchro condition assessed (no grinding or notchy engagement)
- Input shaft and output shaft spline condition documented
- Bellhousing matched to specific engine variant
- Case inspected for cracks especially around mounting bosses
- Fluid sample analyzed for metal contamination
- Backed by a 15 day replacement warranty against internal defects
Description
About the BMW Z4 Manual Transmission
Looking for a reliable manual transmission for your BMW Z4? Part Nests stocks OEM used BMW Z4 manual transmissions across multiple Z4 chassis generations (E85 / E86 first-generation 2003-2008, E89 second-generation 2009-2016, G29 third-generation 2019-current). The BMW Z4 manual transmission is a Getrag-designed 6-speed unit (with specific variant depending on engine torque rating and chassis generation) that provides the engaging shift quality and direct mechanical connection that BMW enthusiasts demand. Whether you are restoring a 2003 Z4 E85 3.0i with the M54 inline-6, completing a clutch service on a 2011 Z4 sDrive35is with the N54 twin-turbo, or sourcing for a 2020 plus G29 Z4 sDrive30i with the B48 turbo inline-4 or sDrive M40i with the B58 turbo inline-6, our inspected used BMW Z4 manual transmissions offer correct OEM fitment at substantial savings.
BMW Z4 Chassis Generation Overview
The BMW Z4 has produced three major chassis generations relevant to current parts demand. Critical for ordering: specify your chassis generation and engine variant.
E85 / E86 Z4 (2003-2008):
- First-generation Z4 (E85 roadster, E86 coupe)
- 2.5i / 3.0i (M54 inline-6), 3.0si (N52 inline-6), Z4 M Coupe / Roadster (S54 inline-6 from M3 E46)
- Manual transmission: Getrag GS6-37BZ for standard variants, Getrag GS6-53BZ for high-torque applications including the Z4 M
E89 Z4 (2009-2016):
- Second-generation Z4 (E89 retractable hardtop convertible)
- sDrive23i / sDrive28i / sDrive30i (N52 / N20 inline-4 turbo), sDrive35i / sDrive35is (N54 twin-turbo inline-6)
- Manual transmission: Getrag GS6-17BG for the sDrive28i N20-equipped variant, Getrag GS6-45BZ for sDrive35i / 35is N54-equipped variants
G29 Z4 (2019-current):
- Third-generation Z4 (G29 roadster, jointly developed with the Toyota Supra A90 / GR Supra)
- sDrive30i (B48 turbo inline-4 2.0L), sDrive M40i (B58 turbo inline-6 3.0L)
- Manual transmission: NOT available in the G29 (BMW dropped the manual option for the G29 generation in most markets; the G29 Z4 is automatic-only)
Getrag Manual Transmission Variant Identification
Critical for ordering: identify your specific Getrag variant based on engine torque rating:
- GS6-37BZ: Standard 6-speed for moderate-torque applications (M54 / N52 inline-6 base variants), approximately 273 lb-ft torque rating
- GS6-45BZ: Heavy-duty 6-speed for N54 twin-turbo applications, approximately 332 lb-ft torque rating
- GS6-53BZ: Heaviest-duty 6-speed for M-division applications and S54 / S65 high-performance applications, approximately 390 lb-ft torque rating (see our listing for the dedicated GS6-53BZ Getrag 6-speed manual transmission listing)
- GS6-17BG: Smaller-torque variant for N20 turbo inline-4 applications, approximately 258 lb-ft torque rating
Using the wrong Getrag variant for your engine torque rating causes premature failure. The GS6-37BZ will NOT handle N54 twin-turbo torque; the GS6-45BZ will NOT handle S54 M-division torque without modification.
BMW Manual Transmission Family Context
The BMW Z4 manual transmission (this listing) is the Getrag 6-speed manual transmission family for the BMW Z4 sports car. For complete BMW manual transmission context across our catalog: BMW has used multiple manual transmission manufacturers and architectures across its model lineup. The BMW GS6-53BZ Getrag 6-speed manual (our listing, the Getrag-designed 6-speed manual for BMW M3 E46 / E90 / E92 / E93 and other high-performance BMW applications, the heavy-duty BMW 6-speed manual for M-division performance models) is the same Getrag GS6-53BZ variant used in the Z4 M / Z4 M Coupe / Z4 M Roadster, so the listings overlap for high-torque BMW manual transmission applications. The BMW X5 ZF S6-37 6-speed manual (our listing, the ZF Friedrichshafen designed 6-speed manual transmission with 273 lb-ft factory torque rating, 23-spline input shaft and 29-spline output shaft, NEVER sold new in US market the Euro-market-only manual transmission for E53 X5 1999-2006, with variants S6-37 standard / S6-37BZ / S6-37BX high-performance for E46 M3 and Z8) is the related ZF-designed BMW 6-speed manual. For BMW high-performance V8 / V10 engine context, the BMW S85 V10 (our listing, the legendary 5.0L naturally-aspirated V10 producing 500 HP / 384 lb-ft used in the BMW M5 E60 / E61 and M6 E63 / E64 2005-2010) is the BMW M division high-RPM V10 engine that was paired with the SMG III sequential manual gearbox or 6-speed manual depending on market. For BMW engine context, the BMW N20 engine (our listing, the 2.0L turbocharged inline-4 with TwinPower Turbo / Valvetronic / Direct Injection technologies used in BMW 3 Series F30 / F31 / F34 / 4 Series F32 / F33 / F36 / 5 Series F10 / F11 / 1 Series F20 / F21 / 2 Series F22 / F23 / X1 F48 / X3 F25 / Z4 E89 sDrive28i applications 2011-2017 with honest disclosure of timing chain failure class action settled 2019 and oil pump driveshaft bolt TSB issues) is the engine paired with the Z4 E89 sDrive28i variant via the Getrag GS6-17BG manual transmission. Four BMW manual transmission and engine listings across our catalog: GS6-53BZ Getrag for M-division performance, X5 ZF S6-37 Euro-market only manual, this Z4 manual transmission listing covering multiple Getrag variants, plus N20 engine and S85 V10 for engine context.
Common BMW Z4 Manual Transmission Failure Modes
- Synchro wear, particularly 2nd and 3rd gear synchros on high-mileage units; symptoms include grinding on downshifts or notchy engagement
- Input shaft pilot bearing failure, causes whine in neutral that disappears when clutch is engaged
- Bellhousing crack, from impact or excessive clutch stress
- Slave cylinder failure (on hydraulic clutch applications), causes clutch pedal to lose pressure
- Shift linkage wear, causes vague shifter feel and missed gears
- Fluid contamination, from extended fluid intervals or seal failures
- Dual-mass flywheel failure (not a transmission failure but affects shift quality), common on high-mileage N54 / S54 / S65 applications
Maintenance Best Practices
To maximize BMW Z4 manual transmission lifespan:
- Use BMW MTF-LT2 or MTF-LT3 manual transmission fluid (BMW-specific, available from BMW dealers or specialist aftermarket sources)
- Change fluid every 60,000 miles for high-torque applications (GS6-45BZ, GS6-53BZ), or per BMW service schedule for standard applications
- Address synchro wear promptly before complete synchro failure
- Inspect dual-mass flywheel during clutch service
- Avoid aggressive driving with cold transmission fluid
- Replace pilot bearing during clutch service (affordable insurance against future bearing failure)
Vehicle Compatibility
| Z4 Generation / Variant | Years | Engine | Manual Transmission |
|---|---|---|---|
| E85 Z4 2.5i | 2003-2005 | M54B25 inline-6 | ZF S5-31 5-speed manual |
| E85 Z4 3.0i | 2003-2005 | M54B30 inline-6 | ZF S5-31 5-speed manual |
| E85 Z4 2.5si | 2006-2008 | N52B25 inline-6 | ZF GS6-17BG 6-speed manual |
| E85 Z4 3.0si | 2006-2008 | N52B30 inline-6 | ZF GS6-17BG 6-speed manual |
| E85 Z4 M Roadster (THIS LISTING) | 2006-2008 | S54B32 inline-6 (330 HP) | Getrag 420G 6-speed manual |
| E86 Z4 Coupe 3.0si | 2006-2008 | N52B30 inline-6 | ZF GS6-17BG 6-speed manual |
| E86 Z4 M Coupe (THIS LISTING) | 2006-2008 | S54B32 inline-6 (330 HP) | Getrag 420G 6-speed manual |
| E89 Z4 sDrive23i / 28i / 30i | 2009-2016 | N52 / N20 inline-4 / 6 | ZF GS6-17BG 6-speed manual |
| E89 Z4 sDrive35i / 35is | 2009-2016 | N54 twin-turbo inline-6 | ZF GS6-45BZ (some), DCT primary |
| G29 Z4 sDrive30i / M40i | 2019-present | B48 / B58 (most markets auto only) | ZF GS6-17DG 6-speed (some markets) |
Getrag Variant Compatibility
| Vehicle | Compatibility |
|---|---|
| BMW Z4 M Roadster (E85) | 2006 to 2008 with S54B32 inline-6 engine |
| BMW Z4 M Coupe (E86) | 2006 to 2008 with S54B32 inline-6 engine |
| BMW M3 (E46) | 2001 to 2006 with S54B32 inline-6 engine (same transmission shared) |
| BMW M5 (E39) | 1999 to 2003 with S62B50 V8 engine (same transmission shared) |
Engine Pairing Reference
| Vehicle | Compatibility |
|---|---|
| Standard Z4 with M54 engine (E85 2.5i / 3.0i 2003-2005) | Uses ZF S5-31 5-speed, NOT Getrag 420G |
| Standard Z4 with N52 engine (E85 / E86 2006-2008) | Uses ZF GS6-17BG 6-speed, NOT Getrag 420G |
| E89 Z4 (2009-2016) | Uses ZF GS6-17BG or ZF GS6-45BZ, NOT Getrag 420G |
| G29 Z4 (2019 plus) | Uses ZF GS6-17DG (in markets offering manual), NOT Getrag 420G |
Why Buy From Part Nests
- Z4 chassis generation verified (E85 / E86 / E89 / G29 NOT applicable since G29 is automatic-only)
- Engine pairing confirmed (M54 / N52 / N54 / N20 / S54 / S65 / B58)
- Getrag variant identified (GS6-37BZ / GS6-45BZ / GS6-53BZ / GS6-17BG)
- All 6 forward gears function-tested
- Synchro condition assessed
- Bellhousing matched to specific engine variant
- Fluid sample analyzed for metal contamination
- Free freight pallet delivery to all 50 states
- 15 day replacement warranty on internal defects
- BMW-experienced support team familiar with the Z4 across generations
- Call (855) 634-4447 to confirm fit and availability before ordering.
15 Day Replacement Warranty
Every used BMW Z4 manual transmission purchased through Part Nests carries a 15 day replacement warranty starting on the delivery date.
What Is Covered
- Internal defects already present when the transmission arrives
- Gear failures within 15 days from installation on any of the 6 forward gears or reverse
- Synchronizer failures within 15 days from installation (where condition was documented as serviceable at shipping)
- Input shaft and output shaft failures within 15 days from installation
- Pilot bearing failures within 15 days from installation
- Bellhousing crack failures not disclosed at shipping
- Case crack failures not disclosed at shipping
- Incorrect Getrag variant shipped (GS6-37BZ vs GS6-45BZ vs GS6-53BZ vs GS6-17BG mismatch where variant was documented) due to an error on our end
- Incorrect Z4 chassis generation shipped (E85 / E86 vs E89 vs G29 mismatch where chassis was documented) due to an error on our end
What Is Not Covered
- Damage caused during installation
- Damage from incorrect transmission fluid (BMW MTF-LT2 or MTF-LT3 required; using generic ATF or incorrect fluid damages synchros)
- Damage from extended fluid service intervals (60,000 miles recommended for high-torque applications)
- Damage from incorrect Getrag variant cross-application (GS6-37BZ used behind N54 twin-turbo or S54 / S65 high-performance engines exceeds the variant torque rating and causes premature failure)
- Damage from clutch operation issues (slipping, dragging, dual-mass flywheel failure, incorrect hydraulic adjustment)
- Damage from aggressive driving with cold transmission fluid
- Damage from drag racing or sustained high-load track use
- Damage from aftermarket performance modifications beyond the variant torque rating (N54 tuned applications producing 400 plus lb-ft exceed even the GS6-45BZ capacity)
- External components (clutch assembly, dual-mass flywheel, hydraulic slave cylinder, hydraulic master cylinder, driveshaft, transmission mount / crossmember, shift linkage / shifter assembly, fluids drained for transit) unless itemized
- Labor expenses of any kind
To start a warranty claim, reach us within 15 days of delivery at (855) 634-4447.
- All 6 Gears Function-Tested: Plus reverse engagement verified
- Z4 Chassis Generation Verified: E85 / E86 first-gen, E89 second-gen, G29 automatic-only
- Engine Pairing Confirmed: M54 / N52 / N54 / N20 / S54 / S65 / B58 correctly matched
- Getrag Variant Identified: GS6-37BZ / GS6-45BZ / GS6-53BZ / GS6-17BG by torque rating
- Synchro Condition Assessed: Common 2nd / 3rd gear wear point checked
- Bellhousing Matched to Engine: Specific engine pattern verified
- 15 Day Replacement Cover: Internal defects protected from delivery onward
Additional information
| Brand | Getrag |
|---|---|
| type | Manual Transmission |
| model | Getrag 420G |
| maker | Getrag (now Magna PT) |
| speeds | 6 forward speeds plus reverse |
| configuration | Rear-wheel drive, longitudinally mounted |
| application-type | M-spec heavy-duty for BMW M cars |
| maximum-torque | Approximately 410 lb-ft rated capacity |
| case-material | Cast aluminum |
| gear-ratios-z4-m | 1st: 4.227, 2nd: 2.528, 3rd: 1.669, 4th: 1.226, 5th: 1.000, 6th: 0.828, Reverse: 4.043 |
| final-drive-z4-m-diff | 3.62:1 (rear differential pairing) |
| fluid | BMW MTF-LT-2 (Manual Transmission Fluid Long-life Type 2), approximately 1.7 liters |
| direct-fit | Z4 M Roadster (E85), Z4 M Coupe (E86), E46 M3, E39 M5 |
| not-compatible | Standard Z4 variants (use different ZF transmissions) |
| price | $999.00 |
Getrag-designed 6-speed manual transmission for the BMW Z4 sports car across multiple chassis generations. The BMW Z4 manual transmission is a Getrag-designed 6-speed unit (with specific variant depending on engine torque rating and chassis generation) that provides the engaging shift quality and direct mechanical connection that BMW enthusiasts demand. Available across E85 / E86 first-generation 2003-2008 and E89 second-generation 2009-2016 Z4 chassis. The G29 third-generation Z4 (2019-current) is automatic-only with NO manual option in most markets, so this listing covers the E85 / E86 / E89 generations only. The Z4 manual transmission features Getrag engineering with multiple torque-rated variants for different engine applications: GS6-37BZ standard, GS6-45BZ heavy-duty for N54 twin-turbo, GS6-53BZ heaviest-duty for M-division S54 / S65, GS6-17BG smaller-torque for N20 inline-4 turbo.
E85 / E86 first-generation 2003-2008 and E89 second-generation 2009-2016. The BMW Z4 has produced three major chassis generations relevant to current parts demand. E85 / E86 Z4 (2003-2008): first-generation Z4 (E85 roadster, E86 coupe), 2.5i / 3.0i (M54 inline-6), 3.0si (N52 inline-6), Z4 M Coupe / Roadster (S54 inline-6 from M3 E46), manual transmission Getrag GS6-37BZ for standard variants and Getrag GS6-53BZ for high-torque Z4 M applications. E89 Z4 (2009-2016): second-generation Z4 (E89 retractable hardtop convertible), sDrive23i / sDrive28i / sDrive30i (N52 / N20 inline-4 turbo), sDrive35i / sDrive35is (N54 twin-turbo inline-6), manual transmission Getrag GS6-17BG for sDrive28i N20 variant and Getrag GS6-45BZ for sDrive35i / 35is N54 variants. G29 Z4 (2019-current): third-generation Z4 (G29 roadster, jointly developed with the Toyota Supra A90 / GR Supra), sDrive30i (B48 turbo inline-4 2.0L) and sDrive M40i (B58 turbo inline-6 3.0L), manual transmission NOT available in the G29 (automatic-only).
Four Getrag variants based on engine torque rating. Critical for ordering. GS6-37BZ: standard 6-speed for moderate-torque applications (M54 / N52 inline-6 base variants), approximately 273 lb-ft torque rating. GS6-45BZ: heavy-duty 6-speed for N54 twin-turbo applications, approximately 332 lb-ft torque rating. GS6-53BZ: heaviest-duty 6-speed for M-division applications and S54 / S65 high-performance applications, approximately 390 lb-ft torque rating (see our listing for the dedicated GS6-53BZ Getrag 6-speed manual transmission listing). GS6-17BG: smaller-torque variant for N20 turbo inline-4 applications, approximately 258 lb-ft torque rating. Using the wrong Getrag variant for your engine torque rating causes premature failure. The GS6-37BZ will NOT handle N54 twin-turbo torque; the GS6-45BZ will NOT handle S54 M-division torque without modification.
Multiple BMW manual transmissions across our catalog. The BMW Z4 manual transmission (this listing) is the Getrag 6-speed manual transmission family for the BMW Z4 sports car. The BMW GS6-53BZ Getrag 6-speed manual is the Getrag-designed 6-speed manual for BMW M3 E46 / E90 / E92 / E93 and other high-performance BMW applications (the heavy-duty BMW 6-speed manual for M-division performance models, the same Getrag GS6-53BZ variant used in the Z4 M / Z4 M Coupe / Z4 M Roadster). The BMW X5 ZF S6-37 6-speed manual is the ZF Friedrichshafen designed 6-speed manual transmission (NEVER sold new in US market, Euro-market-only manual transmission for E53 X5 1999-2006). The BMW S85 V10 is the legendary 5.0L naturally-aspirated V10 producing 500 HP / 384 lb-ft used in the BMW M5 E60 / E61 and M6 E63 / E64 2005-2010. The BMW N20 engine from is the 2.0L turbocharged inline-4 used in BMW Z4 E89 sDrive28i applications via the Getrag GS6-17BG manual transmission.
Seven common failure modes. Synchro wear (particularly 2nd and 3rd gear synchros on high-mileage units; symptoms include grinding on downshifts or notchy engagement). Input shaft pilot bearing failure (causes whine in neutral that disappears when clutch is engaged). Bellhousing crack (from impact or excessive clutch stress). Slave cylinder failure (on hydraulic clutch applications, causes clutch pedal to lose pressure). Shift linkage wear (causes vague shifter feel and missed gears). Fluid contamination (from extended fluid intervals or seal failures). Dual-mass flywheel failure (not a transmission failure but affects shift quality, common on high-mileage N54 / S54 / S65 applications). Addressing the failure mode at the first signs prevents more disruptive consequences (transmission rebuild, complete replacement, towing required).
BMW MTF-LT2 / MTF-LT3 fluid, 60,000 mile change interval for high-torque applications. To maximize BMW Z4 manual transmission lifespan: use BMW MTF-LT2 or MTF-LT3 manual transmission fluid (BMW-specific, available from BMW dealers or specialist aftermarket sources). Change fluid every 60,000 miles for high-torque applications (GS6-45BZ, GS6-53BZ), or per BMW service schedule for standard applications. Address synchro wear promptly before complete synchro failure. Inspect dual-mass flywheel during clutch service. Avoid aggressive driving with cold transmission fluid. Replace pilot bearing during clutch service (affordable insurance against future bearing failure). BMW Z4 manual transmissions can deliver 200,000 plus miles of service with proper maintenance. With improper fluid or extended fluid intervals, failures by 100,000-150,000 miles are common.
BMW dropped the manual transmission option for the G29 generation in most markets. The G29 Z4 (2019-current) is automatic-only with NO manual option in most markets. BMW dropped the manual transmission option for the G29 generation as part of the broader industry trend toward automatic transmissions in sports cars (driven by performance considerations, fuel economy regulations, and declining demand for manuals). The G29 Z4 was jointly developed with the Toyota Supra A90 / GR Supra, and both share the same ZF 8HP automatic transmission with no manual option. Interestingly, Toyota subsequently introduced a manual transmission option for the GR Supra (2023 plus), but BMW has not followed suit for the G29 Z4 as of current model years. If you have a G29 Z4, this listing does NOT apply (your transmission is the ZF 8HP automatic, not a Getrag manual). The G29 GR Supra manual transmission introduced for 2023 plus uses an Aisin AY6 6-speed unit, not a Getrag variant.
No. There is no core return required.
2 reviews for BMW Z4 Manual Transmission for Sale | OEM Used Premium Getrag 6-Speed Manual
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Sebastian H. –
Grabbed the part for my BMW Z4 Manual Transmission project. Right shape, right spec.
Cordelia M. –
Matched the BMW Z4 Manual Transmission without issue. Good folks to buy from.