ACDelco 18E1386B Gold Rear Drum Brake Wheel Cylinder

The ACDelco 18E1386B is a rear drum brake wheel cylinder from the ACDelco Gold (Professional) line — a high-quality alternative to Original Equipment (OE) parts, engineered and backed by General Motors. Designed for precise fit, form, and function, this wheel cylinder delivers dependable hydraulic braking performance and is ready to install straight out of the box.

Construction & Materials:

• Built with both aluminum and iron castings for a durable, lightweight design that places no extra stress on the brake booster mounting
• Contains Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components for superior resistance to heat, corrosion, and brake fluid leakage
• Smooth bore finish with a precision-quality seal to extend the service life of internal rubber components
• Trivalent-coated bleeder screws for added corrosion protection and long-term durability

Performance & Quality:

• Meets brake performance requirements of SAE J1153 and J1154 testing standards
• Pressure tested to ensure safe, confident braking operation
• Manufactured to GM OE specifications and suitable for most makes and models, including special applications
• Ready to bench bleed and install — no assembly required

Warranty:

• Backed by ACDelco's 24-Month / Unlimited Mile Limited Warranty (parts only, for parts sold on or after 04/01/18)

The ACDelco 18E1386B is a trusted, professional-grade drum brake wheel cylinder replacement that meets the high standards expected from a brand designed, engineered, and tested by General Motors.