Brakes› Brake Systems And Components

Hel

3-Layer Brake Line Kit

$349.00

SKU: BMW-4-673

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The HEL Performance BMW-4-673 is a set of braided brake lines specifically designed for the BMW 4 Series F83 M4. These brake lines are constructed with an inner PTFE hose and an outer layer of stainless steel braided hose, protected by a PVC cover. HEL Performance brake line kits aim to eliminate the 'spongy' feeling that can occur with rubber hoses under extreme braking conditions, providing improved braking reliability and precision.
Show original supplier description
The HEL Performance braided brake line kit is engineered as a precise, in-house manufactured replacement for the standard flexible brake hoses on the BMW 4 Series F83 M4 models from 2014 to 2018. HEL braided hoses are constructed with a robust 3-layer design, featuring a PTFE inner core renowned for its chemical and temperature resistance, a high-strength stainless steel overbraid for durability, and a protective, wipe-clean PVC outer cover to prevent damage to surrounding components and paintwork. The unique multi-groove design of the fittings, combined with the PTFE inner core, creates effective internal sealing and allows for secure rotation post-hydraulic swaging. The hose ferrule features a locking groove that ensures the fitting will never detach from the hose. This meticulous construction, tested in both laboratory and racetrack conditions, is backed by HEL's no-quibble lifetime warranty. Each kit arrives complete with all essential components for a straightforward installation, including stainless steel braided hoses and fittings, and may include copper crush washers and mounting components where required. Customers can also choose from a variety of hose colour options to customize the appearance. It is important to note that certain products may be intended for off-road or track use only and may not be legal for public street or highway use, and buyers are responsible for ensuring compliance with all applicable laws.

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

BrandHel
Part NumberBMW-4-673
CategoryBrakes
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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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.

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.

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