--- product_id: 282023833 title: "18M1878 Professional Brake Master Cylinder Assembly" brand: "acdelco" price: "€ 17.74" currency: EUR in_stock: false url: https://www.desertcart.pt/products/282023833-18m1878-professional-brake-master-cylinder-assembly store_origin: PT region: Portugal --- # Lightweight at 635g for easy installation Cast iron & aluminum build for durability Meets SAE J1153 & J1154 brake standards 18M1878 Professional Brake Master Cylinder Assembly **Brand:** acdelco **Price:** € 17.74 **Availability:** ❌ Out of Stock ## Summary > 🚦 Stop at nothing—upgrade to pro-level braking power today! ## Quick Answers - **What is this?** 18M1878 Professional Brake Master Cylinder Assembly by acdelco - **How much does it cost?** € 17.74 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/282023833-18m1878-professional-brake-master-cylinder-assembly) ## Best For - acdelco enthusiasts ## Why This Product - Trusted acdelco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted OEM Quality:** Manufactured by ACDelco, a GM Genuine Parts brand, guaranteeing perfect compatibility and performance. - • **Effortless Installation:** Compact and lightweight design (635g) ensures quick, hassle-free replacement. - • **Top-Ranked Brake Solution:** Ranked #2 in Automobile Brake Primary Cylinders with a stellar 4.6-star rating from 799 users. - • **Precision Engineered Safety:** Certified to rigorous SAE J1153 and J1154 standards for unmatched braking reliability. - • **Durable Dual-Material Construction:** Combines cast iron strength with aluminum lightness to reduce stress on mounting points. ## Overview The ACDelco 18M1878 Professional Brake Master Cylinder Assembly is a premium, OEM-quality replacement part engineered to meet strict SAE J1153 and J1154 brake performance standards. Featuring a robust cast iron and aluminum construction, it offers durability without added stress on brake booster mounts. Lightweight and precision-machined, this master cylinder ensures reliable, safe braking and easy installation. Highly rated and trusted by professionals, it’s the go-to choice for millennial managers who demand safety and efficiency on the road. ## Description Buy Acdelco 18M1878 Professional Brake Master Cylinder Assembly online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase. ## Features - Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality - Pressure d to ensure safe and confident braking - Cast iron and aluminum specifications; no extra stress on the brake boosting mounting ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001DRNA1U | | Best Sellers Rank | #33,700 in Automotive ( See Top 100 in Automotive ) #4 in Automobile Brake Primary Cylinders | | Brand | ACDelco | | Customer Reviews | 4.6 4.6 out of 5 stars (804) | | Date First Available | 12 August 2012 | | Exterior | Machined | | Item Weight | 635 g | | Item model number | 18M1878 | | Manufacturer | ACDELCO | | Manufacturer Part Number | 19176488 | | Model | Brake Master Cylinder Assembly | | OEM Part Number | 19176488 | | Product Dimensions | 23.88 x 14.73 x 12.19 cm; 635.03 g | ## Images ![18M1878 Professional Brake Master Cylinder Assembly - Image 1](https://m.media-amazon.com/images/I/71pzyikuFlL.jpg) ## Questions & Answers **Q: Why do brakes need to be replaced in the first place?** A: Friction material on the brake pad contacts the rotors to slow the vehicle. In time, that material wears away and the pads must be replaced. Sometimes the rotors and calipers must also be replaced. **Q: What’s the squealing sound I hear when braking?** A: Over time, wear indicators in brake pads may contact the rotors’ surface when braking, resulting in a metallic squealing sound. Vehicles equipped with wear sensors may also provide an alert that minimum brake pad thickness has been reached. **Q: What if it’s more of a grinding sound?** A: If all the friction material has been worn away, the metal backing plate of the brake pad will be the material in contact with the rotor during braking. It causes a grinding sound and braking performance is often diminished. **Q: Why do the brakes seem to pulsate when stopping?** A: It may be due to worn brake pads, unevenly worn rotors or unevenly worn tires. Have the pulsation diagnosed as soon as possible to avoid the possibility of greater brake system wear or damage. **Q: What about vibrations or shaking in the steering wheel?** A: This is more serious than pulsation. If the brakes are very worn or the rotors are unevenly worn, there can be a significant vibration or shaking in the steering wheel when braking. It may mean brake service is needed immediately. ## Frequently Bought Together - ACDelco Professional 18M1878 (19176488) Brake Master Cylinder Assembly - Dorman 13911 Master Cylinder Bleeder Kit - 22 In. Hose, Clip, And Sae And Metric Fittings Universal Fit - Dorman 14151 Master Cylinder Bleeder Kit --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/282023833-18m1878-professional-brake-master-cylinder-assembly](https://www.desertcart.pt/products/282023833-18m1878-professional-brake-master-cylinder-assembly) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-23*