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ATE 230121 Disc Brake Caliper - Rear Left
| Brand | ATE 230121 |
|---|---|
| Position | Rear Left |
| Caliper Type | Fixed |
| Pads Included | No |
| Product line | ATE Disc Brake Fist Caliper |
| Fits | Porsche · 14 vehicles |
Fixed caliper. Delivers consistent braking force with a rigid design.
Aluminum and cast iron. Built with innovative materials for durable performance.
Extensively tested. Passed demanding endurance simulations before release.
Cross-references 8AN 355 440-551, 38134500 and 91135290700 for the same application. See all 3.
ATE Rear Left Fixed Disc Brake Caliper
The ATE Disc Brake Fist Caliper, part number 230121, is a fixed brake caliper built for rear left applications on select Porsche 911 models. It is engineered for consistent hydraulic braking performance and is backed by ATE’s extensive testing and material validation process.
For Porsche 911 brake service, this ATE caliper provides a direct replacement option for rear left fitments from 1970-1979 and 1980-1983. The 230121 caliper is part of the ATE Disc Brake Fist Caliper line, which focuses on fixed and floating caliper designs made with proven materials and production controls.
Key Features
- Part number 230121
- Fixed disc brake caliper design
- Rear left position
- Pads not included
- ATE Disc Brake Fist Caliper product line
- Built for Porsche 911 rear brake applications
Fitment Details
- Fits 1980-1983 Porsche 911, rear left.
- Fits 1970-1979 Porsche 911, rear left.
What This Caliper Helps Address
- Brake drag or uneven rear braking caused by a worn caliper
- Hydraulic leakage at the caliper body or piston area
- Reduced braking response from internal caliper wear
- Corrosion or seizure in the rear left brake assembly
- Restoration needs for Porsche 911 rear brake service
Installation Notes and Tips
Confirm rear left placement and match the caliper type before installation. Inspect brake pads, hoses, and rotor condition during service, and verify all brake system components are clean and within specification. This part cross-references 91135290700 and 38134500 for the same application.
Quality Assurance
ATE validates calipers through endurance testing and simulation before release. The brand’s brake caliper range is built around tested materials and established manufacturing controls for consistent hydraulic performance.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1983 | Porsche | 911 | Rear Left | ATE Disc Brake Fist Caliper |
| 1982 | Porsche | 911 | Rear Left | ATE Disc Brake Fist Caliper |
| 1981 | Porsche | 911 | Rear Left | ATE Disc Brake Fist Caliper |
| 1980 | Porsche | 911 | Rear Left | ATE Disc Brake Fist Caliper |
| 1979 | Porsche | 911 | Rear Left | — |
| 1978 | Porsche | 911 | Rear Left | — |
| 1977 | Porsche | 911 | Rear Left | — |
| 1976 | Porsche | 911 | Rear Left | — |
| 1975 | Porsche | 911 | Rear Left | — |
| 1974 | Porsche | 911 | Rear Left | — |
| 1973 | Porsche | 911 | Rear Left | — |
| 1972 | Porsche | 911 | Rear Left | — |
| 1971 | Porsche | 911 | Rear Left | — |
| 1970 | Porsche | 911 | Rear Left | — |
| No rows match your filter. | ||||