ACDelco®Verified to fit 127 vehicles
| Vehicle | Trim | Engine | Notes |
|---|---|---|---|
| 1958 Pontiac Bonneville | — | V8 6.1L | with 1.125 inch Bore |
| 1958 Pontiac Catalina | Base | V8 6.1L | with 1.125 inch Bore |
| 1958 Pontiac Chieftain | Base | V8 6.1L | with 1.125 inch Bore |
| 1958 Pontiac Chieftain | Safari | V8 6.1L | with 1.125 inch Bore |
| 1958 Pontiac Pathfinder | — | L6 4.3L | with 1.125 inch Bore |
| 1958 Pontiac Pathfinder | — | V8 4.6L | with 1.125 inch Bore |
| 1958 Pontiac Star Chief | — | L6 4.3L | with 1.125 inch Bore |
| 1958 Pontiac Star Chief | — | V8 6.1L | with 1.125 inch Bore |
| 1958 Pontiac Super Chief | — | V8 6.1L | with 1.125 inch Bore |
| 1957 Buick Century | — | V8 6.0L | — |
| 1957 Buick Roadmaster | — | V8 6.0L | — |
| 1957 Buick Special | — | V8 6.0L | — |
| 1957 Buick Super | — | V8 6.0L | — |
| 1956 Buick Century | — | V8 5.3L | — |
| 1956 Buick Roadmaster | — | V8 5.3L | — |

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, known to the State of California to cause cancer and reproductive harm. Service the vehicle in a well-ventilated area, wear gloves, and wash your hands. See www.P65Warnings.ca.gov/motor-vehicle-parts

Guaranteed fit — or free return
Currently out of stock
Guaranteed to fitFits your vehicle or we pay the return. Learn more
If a part we confirmed for your vehicle does not fit, we cover the return shipping and refund you in full. That is the fitment guarantee.
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Nobody likes buying a part that turns out to be wrong. So if it doesn't fit, send it back for a full refund at no cost to you — return shipping is on us — and we'll help you get the right one.
AutoBuffy 24-month guaranteeCovered on this part, unlimited miles. Learn more
Every part is covered for 24 months. Many brands add their own manufacturer warranty on top.
4.9/5 ratingFrom 19,069 verified customers. Learn more
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ACDelco Drum Brake Wheel Cylinder 18E755B
Out of stock · guaranteed fit or free return

ACDelco Drum Brake Wheel Cylinder 18E755B

Key Features
About This Drum Brake Wheel Cylinder
This ACDelco automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- •Unusual noises from the component area
- •Decreased vehicle performance
- •Warning lights on dashboard
- •Visible wear or damage
- •Failed vehicle inspection

ACDelco
Trusted Automotive Brand
ACDelco is a trusted manufacturer of quality automotive parts.
View all ACDelco productsInstallation Guide
Tools Needed
Frequently Asked Questions
The ACDelco Drum Brake Wheel Cylinder (18E755B) is a direct-fit replacement for 1941-1958 Cadillac, Buick, Pontiac and 1 other make. UPC 198824470007.
About This Product
Drum Brake Wheel Cylinder
The ACDelco Drum Brake Wheel Cylinder (18E755B) is a direct-fit replacement for 1941-1958 Cadillac, Buick, Pontiac and 1 other make. UPC 198824470007.
This ACDelco automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- Unusual noises from the component area
- Decreased vehicle performance
- Warning lights on dashboard
- Visible wear or damage
- Failed vehicle inspection

Brand-first. Fitment-obsessed.
We only sell brands automakers trust, and we double-check the fit on every listing.
Top curated brands only
The brands automakers put on the car.
Obsessed with fitment
Year, make, model, trim, engine, plus the fine print.
Search any part number
Your old part, a competitor, or the dealer #. We confirm the match.
Shop owner? Get BuffyPro business pricing

Fitment Obsessed
Every part checked against your exact year, make, model, trim, and engine.
Wrong Fit? On Us.
Free return shipping, no restocking fee — the fitment guarantee.
Brands OEMs Trust
The names automakers actually put on the car.
Millions of Parts, One Promise
If we say it fits, it fits.




