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- USA
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Description
SS4 Brake System Rear 4302332SFits Rear Ends w GM Small Pattern 10 12 Bolt Bearing on Axle (BOA) Non Flush Mount Housing Ends (5x4. 75", 5x5"BC) Features: 2 Piece, 4 Piston, S4 Caliper Manufactured in Phoenix, AZ CNC Machined from US Sourced Forged or Billet Aluminum Powder Coated Finish Hard Anodized Aluminum Pistons, Stainless Steel Abutments and Noise Suppression Clips Dual Seals, Dust Weather & Pressure 1 Piece Slot, Drilled, Zinc Plate Rotor Specs: Axle Rear Axle Flange GM
Fits Rear Ends w/GM Small Pattern 10/12 Bolt Bearing on Axle (BOA) Non-Flush Mount Housing Ends (5x4.75", 5x5"BC)
Features:
- 2-Piece, 4-Piston, S4 Caliper Manufactured in Phoenix, AZ
- CNC Machined from US Sourced Forged or Billet Aluminum
- Powder Coated Finish
- Hard Anodized Aluminum Pistons, Stainless Steel Abutments and Noise Suppression Clips
- Dual Seals, Dust/Weather & Pressure
- 1-Piece Slot, Drilled, Zinc-Plate Rotor
Specs:
| Axle | Rear |
|---|---|
| Axle Flange | GM Small Pattern 10/12 Bolt Bearing on Axle (Buick/Olds/Pontiac) |
| Brand | Baer Brakes |
| Caliper | S4 |
| Caliper Color | Silver |
| Disc Brake Caliper (Rear) Piston Quantity | 4 |
| Disc Brake Caliper (Rear) Type | Fixed |
| Disc Brake Pad FMSI Number | DR1-C |
| Disc Brake Rotor (Rear) Construction | Vented |
| Disc Brake Rotor (Rear) Outside Diameter | 12.000IN |
| Emission Code | 6 |
| Export Description | Brake Components |
| Grade Type | Performance |
| Hose Material | Stainless Steel |
| Includes Park Brake | Yes |
| Includes Park Brake Cables | No |
| Lug Count | 5 Lug |
| Min Wheel Dia (verify using template) | 16IN |
| Product Line | 12 Inch SS4 |
| Product Type | 12 Inch SS4 Rear Brake Kit |
| Prop 65 (C, R or CR) | CR |
| Prop 65 - Long Label | WARNING: This product can expose you to chemicals including Toluene Diisocyanate, and Nickel which are known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov |
| Prop 65 - Short Label | WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov |
| Prop 65 Yes/No | Yes |
| Rotor Thickness | 1.020IN |
| Rotor Type | 1-Piece |
| Surface Type | Slotted, Drilled & Zinc Plated |
| System Notes | Fits GM Small Pattern 10/12 bolt Bearing on Axle (BOP) Housing Ends, Also Fits Hybrid 10/12 Bolt Non-Flush Mount 3.150" Bearing, 2.780" axle register |
| Template | S113E |
| Title | SS4 Brake System Rear |
| Wheel Lug/Bolt Pattern | 5x4.75/5x5.00 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1585 reviews
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Product Reviews
★★★★★ 5
Great for home office
Color: Grey, Color: Grey
This was a great replacement to the chair I use when I work from home, padding is firm and comfortable so I have no issue sitting on it for hours, the arm rest are foldable so is very convenient when my dogs are in co worker duty.
Very easy to put together and it feels very firm and stable.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Thick seat cushion
Color: Grey
This double-layer seat cushion is so comfortable! Before, my lower back would ache after just an hour on a hard bench, but now I can work in this chair for most of the day without feeling tired. The PU leather has a great texture, looks high-end, and is incredibly easy to maintain—just wipe it down with a cloth when it gets dirty. It feels smooth and breathable. The 360-degree swivel is very smooth, making it convenient to reach for documents in the office. The casters roll quietly and won’t scratch the floor. For anyone who spends a lot of time working at a desk, the comfort level at this price point is absolutely worth it. I highly recommend it.
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Reviewed in the United States on March 26, 2026
★★★★★ 3
Meh
Color: Black
It's ok. I got it because it looked like it has more cushion and might be more comfortable. Nope. It's the same comfort level as different chairs. My reer still goes numb and gets uncomfortable in this chair. Also, where your arms sit, the chair arms are slightly curved upwards and it causes my chair to be unable to fit under my desk. If they weren't slightly curved, that wouldn't happen. It's just another chair, nothing spectacular.
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Reviewed in the United States on June 13, 2026
★★★★★ 5
Solid quality and comfortable
Color: Light Grey, Color: Light Grey
Wonderful quality chair, solid and sturdy, it was easy to put together, the directions were very clear and all the pieces fit together perfectly without issue. It is made of breathable material and I love that the arms flip up easily. You can raise it up or down and it has an adjustable headrest. It also has adjustable lumber support. It rolls easily and the color is the only reason I might return, I think I want a different one instead. The chair is comfortable for a petite person but equally comfortable for a tall person. We have both in our family and it is great for both. The armrests are comfortable and there is really nothing negative to say about this chair at all. Considering the quality, it is a great value for the money.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Comfortable and Sturdy Office Chair
Color: Black, Color: Black
I’ve been very happy with this chair so far. The quality feels solid, and the materials look durable. The color matches the listing perfectly and fits nicely with my office setup. It’s very comfortable for long periods of sitting, with good support for my back and shoulders.
Assembly was straightforward, and all the parts were included. The chair looks modern and professional, and the overall appearance exceeded my expectations. It feels stable and secure, even when reclining or moving around. The wheels roll smoothly, and the chair is easy to adjust for a comfortable fit.
Overall, this is a well-made, comfortable, and attractive office chair that offers great value for the price.
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Reviewed in the United States on June 6, 2026