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cdb95z28 · 02-21-2023, 01:49 PM

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.
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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

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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.

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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"

02-21-2023, 01:49 PM	#1
cdb95z28 Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008 Location: Johnstown, PA Posts: 3,241	BCD Copper Free 1LE Caliper Part #s 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. ------------------------------------------------------------------------------------------- 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" __________________ 2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD Last edited by cdb95z28; 02-28-2023 at 10:47 AM.