StopTech

DOT 4 High-Performance Brake Fluid

$42.00

SKU: STR-660

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The StopTech STR-660 Ultra Performance Race Brake Fluid is designed for high-performance street and racing applications, engineered to optimize brake system performance, especially at elevated operating temperatures. This DOT 4 motor vehicle brake fluid actively guards against boiling, preventing the loss of braking efficiency that can occur under severe racing conditions. It is formulated to maintain excellent viscosity, lubricity, and non-compressibility, ensuring consistent performance. Conforming to and exceeding the U.S. FMVSS 116 (§ 571.116) DOT 4 specification, the STR-660 is road-legal and compatible with modern ABS and other vehicle dynamic control systems. This brake fluid is also mixable with all DOT 3 and DOT 4 products, offering flexibility in its application. The fluid comes in a 500mL metal container, which not only offers increased durability over plastic bottles but also provides up to a 25% longer shelf life. Key specifications for the StopTech STR-660 include a typical dry boiling point of 622°F (328°C) and a typical wet boiling point of 404°F (206°C), with a minimum wet boiling point of 383°F (195°C). To maintain the functional reliability of your brake system, it is recommended to change the brake fluid according to the vehicle manufacturer's specifications regarding quality and change interval.

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

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Specifications

BrandStopTech
Part NumberSTR-660
CategoryBrakes

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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.

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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.

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