Which year 328i rear calipers for my 128i

HappyDuck · 01-02-2024, 09:10 AM

I want to upgrade the rear brakes on my 128i (my fronts have already been changed to 135i calipers). I understand the calipers off a 328i are plug and play, but should I look for units from specific years?
Thanks

Suprgnat · 01-02-2024, 01:25 PM

Quote:

Originally Posted by HappyDuck

I want to upgrade the rear brakes on my 128i (my fronts have already been changed to 135i calipers). I understand the calipers off a 328i are plug and play, but should I look for units from specific years?
Thanks

34216768697 Left
34216768698 Right

From RealOEM:
Part 34216768697 was found on the following vehicles:
1' E81 (02/2006 — 12/2011)
1' E87 (02/2003 — 02/2007)
1' E87 LCI (01/2006 — 06/2011)
1' E88 (11/2006 — 10/2013)
1' E82 (11/2006 — 10/2013)
3' E90 (02/2004 — 09/2008)
3' E90 LCI (07/2007 — 02/2012)
3' E91 (02/2004 — 08/2008)
3' E91 LCI (07/2007 — 05/2012)
3' E92 (05/2005 — 02/2010)
3' E92 LCI (11/2008 — 06/2013)
3' E93 (09/2005 — 02/2010)
3' E93 LCI (11/2008 — 10/2013)
3' F30 (02/2012 — 07/2015)
3' F30 LCI (01/2015 — 03/2019)
3' F35 (06/2011 — 08/2015)
3' F35 LCI (01/2015 — 03/2019)
X1 E84 (09/2008 — 12/2015)
Zinoro M12 (01/2013 — 07/2015)

HappyDuck · 01-17-2024, 10:10 AM

@Suprgnat Thanks!

Geran · 01-27-2024, 05:42 PM

How come the E90 328i brakes are an upgrade to the stock ones if they share the same part number?

Suprgnat · 01-28-2024, 08:58 AM

Quote:

Originally Posted by Geran

How come the E90 328i brakes are an upgrade to the stock ones if they share the same part number?

Stock 128i rear calipers are part numbers 34216768693/34216768694 and have 40mm pistons.

34216768697/34216768698 from the 328i are an ugrade to the 128i because they have 42mm pistons.

Geran · 01-28-2024, 02:37 PM

Quote:

Originally Posted by Suprgnat

Stock 128i rear calipers are part numbers 34216768693/34216768694 and have 40 mm pistons.

Oh okay, in your post listing the 34216768697 showed it was part of the E82.

Quote:

Originally Posted by Suprgnat

34216768697/34216768698 from the 328i are an upgrade to the 128i because they have 42 mm pistons.

Gotcha, that makes sense. Now to decide between this upgrade or upgrading to the 130i hubs and 135i rear brakes.

SpeedyJay · 01-28-2024, 11:26 PM

Is there a stamp on the 42mm calipers so we can be sure we are getting the right ones?

Suprgnat · 01-29-2024, 01:15 PM

Quote:

Originally Posted by SpeedyJay

Is there a stamp on the 42mm calipers so we can be sure we are getting the right ones?

128i

328i

MAMSport · 01-30-2024, 01:46 AM

Worth noting here is that the rear rotors stay the same (i.e., E82 128i) even if using the E9x 3 series rear calipers. I believe (but am not sure) the caliper bracket stays the same as well. I forget whether the rear pads are different from the E82 128i and E9x 3 series, though.

carscatscoffee15 · 02-19-2024, 12:53 PM

Why not F30 rotors/brakes? Just out of curiosity

I'm trying to decide which route to take in my brake upgrade.

Geran · 02-21-2024, 08:49 PM

Quote:

Originally Posted by carscatscoffee15

Why not F30 rotors/brakes? Just out of curiosity

I'm trying to decide which route to take in my brake upgrade.

F30 brakes on the front work great. To put them on the rear is a little harder unless you use the SLG brackets, but that forces you to use 18in wheel.

carscatscoffee15 · 02-21-2024, 11:50 PM

Quote:

Originally Posted by Geran

F30 brakes on the front work great. To put them on the rear is a little harder unless you use the SLG brackets, but that forces you to use 18in wheel.

The SLG bracket is only needed if you go M3/M4 BBK 380/370 front/rear, if im not mistaken. There's a thread on here that covers that (and I'm not interested in that specific setup)

You don't need a bracket if you're going 370/345 S2NHA M Sport/ZTR option or M Performance BBK (these two are the same, the former are the blue calipers with 370s/345 out of the assembly line or the red/orange/yellow retrofit kit)

Geran · 02-22-2024, 10:50 AM

Quote:

Originally Posted by carscatscoffee15

The SLG bracket is only needed if you go M3/M4 BBK 380/370 front/rear, if im not mistaken. There's a thread on here that covers that (and I'm not interested in that specific setup)

You don't need a bracket if you're going 370/345 S2NHA M Sport/ZTR option or M Performance BBK (these two are the same, the former are the blue calipers with 370s/345 out of the assembly line or the red/orange/yellow retrofit kit)

Interesting, thanks for that information. I didn't know that.

01-02-2024, 09:10 AM	#1
HappyDuck Private 94 Rep 95 Posts Drives: 2011 BMW 128i 6MT M-Sport Join Date: May 2019 Location: Boston, MA iTrader: (1) Garage List 2011 BMW 128i [0.00]	Which year 328i rear calipers for my 128i I want to upgrade the rear brakes on my 128i (my fronts have already been changed to 135i calipers). I understand the calipers off a 328i are plug and play, but should I look for units from specific years? Thanks __________________ 2011 128i M-Sport 6MT Coupe Space Gray Style 372 Wheels Red Manual Sport Interior
	Appreciate 0 Tweet Quote

01-17-2024, 10:10 AM	#3
HappyDuck Private 94 Rep 95 Posts Drives: 2011 BMW 128i 6MT M-Sport Join Date: May 2019 Location: Boston, MA iTrader: (1) Garage List 2011 BMW 128i [0.00]	@Suprgnat Thanks! __________________ 2011 128i M-Sport 6MT Coupe Space Gray Style 372 Wheels Red Manual Sport Interior
	Appreciate 0 Quote

01-27-2024, 05:42 PM	#4
Geran New Member 5 Rep 13 Posts Drives: 2008 BMW 128i Join Date: Oct 2023 Location: Maryland iTrader: (0)	How come the E90 328i brakes are an upgrade to the stock ones if they share the same part number?
	Appreciate 1 cerealwars78.00 Quote

01-28-2024, 11:26 PM	#7
SpeedyJay Registered 0 Rep 3 Posts Drives: BMW 128i, Mini CoopS Join Date: Oct 2022 Location: Alberta, Canada iTrader: (0)	Is there a stamp on the 42mm calipers so we can be sure we are getting the right ones?
	Appreciate 0 Quote

01-30-2024, 01:46 AM	#9
MAMSport Second Lieutenant 87 Rep 265 Posts Drives: '13 128i M-Sport coupe Join Date: Apr 2016 Location: North Shore of MA iTrader: (1)	Worth noting here is that the rear rotors stay the same (i.e., E82 128i) even if using the E9x 3 series rear calipers. I believe (but am not sure) the caliper bracket stays the same as well. I forget whether the rear pads are different from the E82 128i and E9x 3 series, though. __________________ E9x M3 front & rear suspension arms; BMW Performance brakes upgraded to drilled rotors in rear; BMW performance shifter; BMW Performance Exhaust; Wave Trac LSD with modified 'nannies'; BMW Euro Intake box; BMW Aluminum Strut Tower bar; ECS front and rear sway bars; 3 stage intake with BPC software; BMW style 78, 17 x 8" wheels with Bridgestone RE 980AS 225/45-17 tires; Koni Special Active struts/shocks, E9x M3 RTABs.
	Appreciate 1 cerealwars78.00 Quote

02-19-2024, 12:53 PM	#10
carscatscoffee15 Lieutenant 257 Rep 437 Posts Drives: BMW 128i ZED Package Join Date: Jan 2018 Location: New York City, NY iTrader: (0)	Why not F30 rotors/brakes? Just out of curiosity I'm trying to decide which route to take in my brake upgrade. __________________ Mods Done: AA Exhaust/Headers \| 3SIM \| MILVs \| StageFP Dyno Tuned \| Euro Box Intake Swap \| LCI Blackline Tailights \| OEM Euro Bi-Xenon Swap from Halogen \| Rear Bumper M-Sport Swap \| Rear PDC Retrofit \| BMW OEM CF Diffuser/Spoiler \| BMW Front Aero Kit \| Supersprint Sec 1 Cat Delete Straight Pipes To Do: Ohlins R n T Suspension \| Front/Rear Sway Bars \| M3 Front Control Arms/Bushings Eventually: AT -> MT Swap (!?)
	Appreciate 0 Quote