Crown Automotive 83300111 Brake Master Cylinder for 78-86 Jeep CJ with Power Disc Brakes & 2 Bolt Calipers
Reliable Performance: Delivers consistent hydraulic pressure for effective braking.
High-Quality Construction: Built with durable materials to withstand rigorous use.
Easy Replacement: Designed for straightforward installation and replacement.
Optimal Safety: Enhances the safety and reliability of your vehicle's braking system.
Precision Engineering: Meets or exceeds OEM specifications for fit and function.
Ensure safe and reliable braking with the Master Cylinder-Brake. Designed by Crown Automotive, this master cylinder is compatible with various Jeep models. It provides excellent hydraulic pressure to your vehicle's braking system, ensuring smooth and effective braking performance. Trust in Crown Automotive's reputation for quality and reliability.
- Shipping Weight: 8lb
- Shipping Dimensions: 15in x 9in x 7in (L x W x H)
Jeep CJ-5
- 1983 Jeep CJ-5
- 1982 Jeep CJ-5
- 1981 Jeep CJ-5
- 1980 Jeep CJ-5
- 1979 Jeep CJ-5
- 1978 Jeep CJ-5
Jeep CJ-7
- 1986 Jeep CJ-7
- 1985 Jeep CJ-7
- 1984 Jeep CJ-7
- 1983 Jeep CJ-7
- 1982 Jeep CJ-7
- 1981 Jeep CJ-7
- 1980 Jeep CJ-7
- 1979 Jeep CJ-7
- 1978 Jeep CJ-7
Jeep CJ-8
- 1985 Jeep CJ-8
- 1984 Jeep CJ-8
- 1983 Jeep CJ-8
- 1982 Jeep CJ-8
- 1981 Jeep CJ-8
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Questions
Your 1978 CJ5 4.2L has front disc brakes and rear drum brakes, which matches part of the requirement. However, the crucial factor is the lack of a brake booster.
This master cylinder (83300111) is designed for systems with a power brake booster. Using it without a booster will likely result in:
A very hard brake pedal: You'll need to apply excessive force to get the vehicle to stop.
Reduced braking power: The master cylinder's bore size and internal components are calibrated to work with the added pressure from the booster. Without it, the hydraulic pressure generated by your foot alone might not be sufficient for adequate braking.
Potential safety hazard: The vehicle may not be able to stop effectively in emergency situations.
Therefore, the Crown Automotive 83300111 Brake Master Cylinder is NOT the correct part for your 1978 CJ5 4.2L without a brake booster.
You need a brake master cylinder specifically designed for a manual brake system (without a booster) with front discs and rear drums.
