[cdb95z28]

Originally Posted by Jofu

I ended up contacting a local dealer's parts department, and it turns out that part number 84519605 is back as being available, and so is still the current part number for BCD-optioned cars' rear rotors.


Geoff

You got it, 84519605 is the correct rear rotor.

[cdb95z28]

To summarize the BCD Copper Free Brake Package calipers, here is a list of all variants of the BCD calipers. SS 1LE (A1Y) (red), ZL1 (grey), ZLE (A1Z) (red), and SS (black). Three different caliper colors depending on the model variant. Only the SS 1LE (A1Y) and ZLE (A1Z) share the same part #s due to both having the 1LE package red calipers. SPECIAL 2024 MODEL VARAINTS ALSO NOTED.



SS 1LE and ZLE (1LE LOGO):

FRONT:

CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 3, 7-9)(PERFORMANCE TORCH RED)
Callout: 1
#86791549


CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 3, 7-9)(PERFORMANCE TORCH RED)
Callout: 1
#86791548

REAR:

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 7, 9-11)
Callout: 1
#85113992


CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 7, 9-11)
Callout: 1
#85113991





ZL1 (non-1LE) and 2024 GARAGE 56 ZL1 (ZL1 LOGO):

FRONT:

CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AL37-67 (BCD, J6H)(EXC A1Z) * (INCLS 2, 3, 7-9)(HARBOR GRAY METALLIC)
Callout: 1
#86791545


CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AL37-67 (BCD, J6H)(EXC A1Z) * (INCLS 2, 3, 7-9)(HARBOR GRAY METALLIC)
Callout: 1
#86791544

REAR:

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AL37-67 (BCD, J6H)(EXC A1Z) * (INCLS 2, 3, 6-8)
Callout: 1
#85113994

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AL37-67 (BCD, J6H)(EXC A1Z) * (INCLS 2, 3, 6-8)
Callout: 1
#85113993




SS (CAMARO LOGO):

FRONT:

CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AJ, AK37-67 (BCD, J6H)(EXC A1Y) * (INCLS 2, 3, 7-9)(BLACK)
Callout: 1
#86791541

CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AJ, AK37-67 (BCD, J6H)(EXC A1Y) * (INCLS 2, 3, 7-9)(BLACK)
Callout: 1
#86791540

REAR:

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AJ, AK37-67 (BCD, J6H)(EXC A1V, A1Y) * (INCLS 2, 3, 6-8)
Callout: 1
#85113990

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AJ, AK37-67 (BCD, J6H)(EXC A1V, A1Y) * (INCLS 2, 3, 6-8)
Callout: 1
#85113989




2024 SPECIAL MODELS:
For the 2024 special models, the Garage 56 ZL1 (RPO X56) share the same GRAY calipers as the ZL1 (non-1LE).

The 2024 Collector's Edition ZL1 (RPO Z4B) is a unique RED caliper package BUT with the ZL1 LOGO.


2024 Collector's Edition ZL1 (ZL1 LOGO):

FRONT:

CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AL (BCD, J6H, Z4B)(EXC A1Z) * (INCLS 2, 3, 7-9)(RED)
Callout: 1
#87859533

CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AL (BCD, J6H, Z4B)(EXC A1Z) * (INCLS 2, 3, 7-9)(RED)
Callout: 1
#87859532

REAR:

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AL (J6H, Z4B)(EXC A1Z) * (INCLS 2, 3, 6-8)
Callout: 1
#85602421

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AL (J6H, Z4B)(EXC A1Z) * (INCLS 2, 3, 6-8)
Callout: 1
#85602420









As mentioned previously, ALL BCD COMPONENTS are the same part #s EXCEPT CALIPERS due to color change for variants. ZL1 COLLECTOR EDITION IS RED CALIPER BUT WITH ZL1 LOGO.

Also, while the typical NON-BCD ZL1/ZLE (copper content) brake package that has the Ferodo HP1000 pad carry the RPO code J6H, the J6H RPO is also used on all BCD equipped cars.

[IMCWORTH]

SS 1LE and ZLE (1LE LOGO):

FRONT:

CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 3, 7-9)(PERFORMANCE TORCH RED)
Callout: 1
#86791549


CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 3, 7-9)(PERFORMANCE TORCH RED)
Callout: 1
#86791548

REAR:

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 7, 9-11)
Callout: 1
#85113992


CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 7, 9-11)
Callout: 1
#85113991





85113992 I ordered this caliper and it came in Black with the Camaro LOGO like the picture The others came red with 1LE logo

Its say's it part of the 1LE track package with BCD option but is Black

[almimono]

Originally Posted by cdb95z28

In another thread I was asked for the BCD Copper Free Brake System caliper part #s.


I have a 2022 SS 1LE (RPO A1Y) with the BCD Copper Free Brake Package. My build calls out RPOs BCD and J6H for the brake system. A 2022 and up ZL1 1LE (RPO A1Z) with the same BCD package will have the same rotors, brake hoses, pads and calipers. The ABS tune most likely is different because of the different tires and suspension. Both cars are a 1LE which will call out the red calipers and 1LE script.


My calipers had the following stickers on them from the factory. I believe that the stickers found on our Brembos, which have an 8 digit # on them, do not always correspond to the actual part # used by GM. Here are the #'s from the stickers on my calipers:

LF 85158657
RF 85158658
LR 85107803
RR 85107804

My GM parts source does not accept these #s.
Attachment 1121161

Attachment 1121162



-------------------------------------------------------------------------------------------
Here is a VIN from another BCD equipped SS 1LE that matches my own car specs,
1G1FF1R72N0103077
You can use this VIN whenever a dealer asks for a VIN to confirm SS 1LE BCD part compatibility.
The front caliper part #s I have found from my parts source:

"CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) -
AJ, AK37 CHEVROLET SS PERFORMANCE PACKAGE(A1Y), COPPER FREE BRAKE IDENTIFICATION(BCD), HEAVY DUTY FRONT & REAR DISC BRAKES W/ABS(J6H)"
LF 86791548
RF 86791549

--------------------------------------------------------------------------------------------------------------
Now for the rears.
I have found inconsistencies. Bear with me as I want to cover all the bases. As I said use a VIN from a known BCD equipped 1LE to confirm for yourself. Part #s sometimes change over time.
It is possible there was a part # change and I am behind on my part #s and/or Rockauto is. But according to my part source, the following #s are NOT for the 1LEs.
RockAuto has these #s for the rears and they show a pic of the LR in red, but no pic of the RR.

RockAuto's description:
"SS Model; Exc. Chevrolet LT Performance Package (A1X), Chevrolet SS Performance Package (A1Y); Copper Free Brake Identification (BCD), Heavy Duty Front & Rear Disc Brakes w/ ABS (J6H)"
Notice that it says Exc. (Except) Chevrolet LT Performance Package (A1X), Chevrolet SS Performance Package (A1Y);.
I believe they are calling out an exception for both the A1X and A1Y RPO code.

My part source calls them out as:

"DISC BRAKE CALIPER,REAR // CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) -
SS, Convertible * COPPER FREE BRAKE IDENTIFICATION(BCD), HEAVY DUTY FRONT & REAR DISC BRAKES W/ABS(J6H) * EXCEPT CHEVROLET LT PERFORMANCE PACKAGE(A1X), CHEVROLET SS PERFORMANCE PACKAGE(A1Y)
SS, Coupe * COPPER FREE BRAKE IDENTIFICATION(BCD), HEAVY DUTY FRONT & REAR DISC BRAKES W/ABS(J6H) * EXCEPT CHEVROLET LT PERFORMANCE PACKAGE(A1X), CHEVROLET SS PERFORMANCE PACKAGE(A1Y)"

This description is saying the exception is for A1X and A1Y. We know that A1X is the V6 1LE which I believe went away in 2022.
And we know the 1LE option is not available on convertibles.

So I am doubting that the below #s are correct for BCD equipped SS 1LE or ZL1 1LE . I believe they are black painted and Rockauto is incorrect.
LR 85113989
RR 85113990


Moving deeper, my parts source calls out the below #s for any BCD equipped 1LE:

"CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - // DISC BRAKE CALIPER,REAR
AJ, AK37 CHEVROLET SS PERFORMANCE PACKAGE(A1Y), COPPER FREE BRAKE IDENTIFICATION(BCD), HEAVY DUTY FRONT & REAR DISC BRAKES W/ABS(J6H)"


This description hits all the correct RPOS, A1Y, BCD and J6H.
LR 85113991
RR 85113992

BUT, I found another inconsistency. AC Delco's site lists the 85113991/85113992 part #s as:

"CHEVROLET SS Perf Pkg(A1Y), COPPER FREE BRAKE IDENTIFICATION(BCD), HD FRONT & REAR DISC BRAKES W/ABS(J6H)"


The description is correct for a 1LE but they show a BLACK caliper for both the LR and RR.

----------------------------------------------------------------------------------------------------------------------------------
So to summarize, a BCD equipped 1LE would have the following caliper part #s. One thing I have found in many years of part # and general info research is that even GM can be delayed or get the small detail info wrong. Always confirm with your GM parts source. Part #s change over time also.

I called my parts buddy at my local GM dealership and he confirmed the BCD 1LE fronts and rears for my VIN as:

LF 86791548
RF 86791549
LR 85113991
RR 85113992


There's a fair amount of BCD Copper Free info here on the forums. If you have questions on other BCD parts or info, just search google "copper free brakes BCD camaro6.com"

Those sticker numbers aren’t GM service part numbers - GM uses different catalog P/Ns for Brembo calipers.

[IMCWORTH]

Originally Posted by almimono

Those sticker numbers aren’t GM service part numbers - GM uses different catalog P/Ns for Brembo calipers.

those are GM numbers not sticker number on the calipers
all the Calipers came in correct except the RR 85113992
which came in black with a Camaro logo

[cdb95z28]

Originally Posted by IMCWORTH

SS 1LE and ZLE (1LE LOGO):

FRONT:

CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 3, 7-9)(PERFORMANCE TORCH RED)
Callout: 1
#86791549


CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 3, 7-9)(PERFORMANCE TORCH RED)
Callout: 1
#86791548

REAR:

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 7, 9-11)
Callout: 1
#85113992


CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AJ, AK37 (A1Y or A1Z, BCD, J6H) * (INCLS 2, 7, 9-11)
Callout: 1
#85113991





85113992 I ordered this caliper and it came in Black with the Camaro LOGO like the picture The others came red with 1LE logo

Its say's it part of the 1LE track package with BCD option but is Black

Yeah, GM has an internal problem there. Did you get the correct red caliper then? Somehow? Both my part sources show that # as RPO A1Y (SS 1LE) OR A1Z (ZL1 1LE). Those RPOs will only be a red caliper. My parts sources are AC Delco's online catalog and Repair Shop Link which uses GM's parts diagrams and data.

[cdb95z28]

Originally Posted by almimono

Those sticker numbers aren’t GM service part numbers - GM uses different catalog P/Ns for Brembo calipers.

See previous response below.

Originally Posted by RUQWIKR

The PN's seen on the stickers on new builds are for complete assemblies (caliper, pads, spring clips, pins, cross bolts). The rear BCD J6H caliper PN's (without the pads, etc.) are the same as regular ZL1 1LE J6H ones.

The front BCD J6H for A1Y (SS 1LE) or A1Z (ZL1 1LE) red caliper PN's you would order from a dealer, without the pads, etc., are 86791548 LF / '49 RF.

The assembly plant or a sub-assembly VAA (Value Added Assembler) uses "loaded" calipers during the vehicle build process. Hope this helps further explain.

[IMCWORTH]

Originally Posted by cdb95z28

Yeah, GM has an internal problem there. Did you get the correct red caliper then? Somehow? Both my part sources show that # as RPO A1Y (SS 1LE) OR A1Z (ZL1 1LE). Those RPOs will only be a red caliper. My parts sources are AC Delco's online catalog and Repair Shop Link which uses GM's parts diagrams and data.


Attachment 1171308

Attachment 1171309

No I ended up buying my last caliper from Schram Auto which arrived with a chip on it.
I have been debating on ordering another one just to see if the black was put in the wrong box.
The 3 Red calipers I received from GM were made in Mexico the one i got from Schram auto was made in Italy
i was told it didn't matter where they were made. it was the same specs. However The chip and location made does bother me a little bit

[cdb95z28]

Originally Posted by IMCWORTH

No I ended up buying my last caliper from Schram Auto which arrived with a chip on it.
I have been debating on ordering another one just to see if the black was put in the wrong box.

I feel for ya on the Schram caliper. I bought a pair of "typical" HP1000 ZLE J6H front calipers from them last spring. Not only did they send one wrong one with damage, the correct replacement was damaged also. Absolutely terrible packaging. Clown show and they couldn't give a shit less.


AC Delco's online catalog has both the left and right shown with a black caliper, even though the description is for 1LE red calipers. DOH!