Why Buy a 1997 BMW Transmission from Auto Power Source
1997 is the year the E39 5 Series reaches full stride, and the split that decides fitment is the chassis and the engine class the gearbox was bolted to, not the badge on the trunk. The V8 and V12 cars (740iL and 750iL E38, 840Ci E31) all take the large ZF 5HP30, BMW's A5S 560Z, though the V12 750iL has its own bell-housing and calibration and is not swapped with the V8 cars. The 2.8 M52 328is takes the smaller ZF 5HP18 (A5S 310Z), and so does the M3, because BMW offered a five-speed automatic on the US M3 for the first time this year. The 1.9 M44 cars use a GM-sourced 4L30-E four-speed that shares nothing with either ZF unit. Three automatic classes, no interchange.
On the manual side there are four separate parts for 1997, not one. The 318i, 318is and 318ti use the small-case Getrag S5D 250G. The 328is and the Z3 2.8 new this year use the larger ZF S5D 320Z. The E39 528i uses the same 320Z case family but a different chassis fit (the output flange and tail housing are E39 parts, not E36 parts), so it gets its own row rather than being folded in. The 540i runs the heavy-duty Getrag 420G six-speed, the only six-speed on this page. And the E36 M3's five-speed carries its own ratio set and clutch package behind the S52 3.2, so an ordinary 328is manual is not an alternative either way.
Two absences are worth stating outright rather than leaving you to notice them. We hold no 1997 E39 automatic at all: both 5 Series units here are manuals, so there is no ZF 5HP24 (A5S 440Z) 540i automatic and no E39 A5S 310Z on this page, and the family table lists neither. We hold no ZF 4HP22, 4HP24 or 5HP19 either, and no four-cylinder Z3 1.9: the only Z3 we have is the 2.8 six. Where a 1997 title gives us nothing we say so rather than inventing a part number, and two rows prove it: the 4L30-E listings never print the 270R-versus-310R torque rating, and the M3 manual never prints a case code at all.
Every 1997 BMW transmission we hold was pulled from a low-mileage donor vehicle, cataloged by VIN, and stored in our climate-controlled warehouse. Each went through our six-step inspection: VIN-matching, ASE Shift-Testing through every gear under load, noise verification, full visual inspection, multi-angle photography, and palletized shipping. On a thirty-year-old unit the valve body and bell-housing seal get the hardest look, because one that is clean outside can still be tired inside. These are long out of dealer supply, which is why a tested used OEM unit is usually the only sensible way to keep a 1997 BMW on the road. Free freight anywhere in the continental U.S., 30 days from delivery to return for any reason with no restocking fee, and a 0% fitment-related return rate across 100K+ units in stock.
Your 1997 BMW Transmission Options: Compared
Most 1997 BMW owners face four real choices when the transmission fails:
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| Option |
Cost |
Reliability |
Warranty |
Fitment Match |
| Used OEM (this collection) |
$$$ Best Value |
High — tested |
Included |
VIN-matched |
| New OEM (dealer) |
$$$$$ 2-4× more |
High |
Manufacturer |
Exact |
| Aftermarket / Reman |
$$$$ |
Varies |
6-12 mo |
May adapt |
| Junkyard |
$ Cheapest |
Unknown |
None |
DIY |
Tested used OEM hits the sweet spot — same engineering as new, fraction of the cost.