Ignitions and Electrical Ignition Components

Bosch ESI6-32N

ESI6 Brake Fluid

$18.29

SKU: ESI632N

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return

Overview

The Bosch ESI6 is a next-generation brake fluid designed for modern braking systems. It is compatible with and a direct replacement for DOT 3, DOT 4, and DOT 5.1 brake fluids. This fluid exceeds all DOT 3, DOT 4, and DOT 5.1 standards and offers an extended service interval, lasting 100% longer than DOT 3, 50% longer than DOT 4, and 10% longer than DOT 5.1.
Show original supplier description
The Bosch ESI6 brake fluid represents the next evolution in braking technology, engineered to meet the demands of contemporary braking systems. It offers exceptional compatibility, serving as a direct replacement or a versatile choice for vehicles specifying DOT 3, DOT 4, or DOT 5.1 brake fluids. Notably, it excludes compatibility with DOT 5 silicone-based fluids, which are typically reserved for military and racing applications. Engineered for superior performance, the ESI6 fluid boasts an Extended Service Interval (ESI), providing significantly longer service life. It lasts 100% longer than DOT 3, 50% longer than DOT 4, and 10% longer than DOT 5.1 fluid, while also featuring 30% lower viscosity. This combination ensures faster response times for systems like ESP. The fluid's high wet boiling point, around 360°F, minimizes the risk of vapor bubble formation, a primary cause of brake failure, especially under demanding conditions. The wet boiling point is 284°F for DOT 3, 311°F for DOT 4, and 374°F for DOT 5.1, with the ESI6 offering a strong performance across these metrics. This brake fluid exceeds all current DOT standards, including FMVSS 116, and offers excellent lubricity to protect brake system components from wear and reduce noise. It comes in a 32-ounce quart container and is composed of Glycol Ether. The product is not returnable once opened.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBosch ESI6-32N
Part NumberESI632N
CategoryIgnitions and Electrical

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy