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Lang Tools

Running Boards

$26.68 $18.37 Save $8.31

SKU: 74447

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 Lang Tools Hose Assembly Replacement Part (74447) is a 4-foot black hose designed for automotive diagnostic equipment. It features a 1/8" MNPT fitting for gauges and a quick-connect fitting for vehicle fuel systems. This part is essential for accurate fuel pressure readings and troubleshooting fuel-related issues.
Show original supplier description
The Lang Tools Hose Assembly Replacement Part (74447) serves as a crucial component for professionals using Lang Tools automotive diagnostic equipment, specifically the TU-443 Deluxe Global Fuel Injection Pressure Test Set. Constructed with a durable black finish, this 4-foot hose provides ample length for technicians to comfortably reach various test ports without strain. It features two key fittings: a 1/8" MNPT (Male National Pipe Taper) threaded connection designed for secure attachment to pressure gauges or testers, and a quick-connect fitting for efficient and rapid connection to vehicle fuel systems. This combination of fittings streamlines the diagnostic process and minimizes the risk of leaks during testing. The hose assembly is a direct replacement component, ensuring perfect fit and function with compatible Lang Tools fuel injection test sets. Its design contributes to enhanced diagnostic accuracy by providing a secure connection for precise fuel pressure readings. While primarily intended for the TU-443, its standard fittings offer versatility and may be suitable for other Lang Tools fuel injection testers and cleaners that utilize a GM Schrader adapter. Proper use involves connecting the MNPT end to the tester and the quick-connect end to the vehicle's fuel test port, following safety precautions and vehicle-specific service manual procedures for fuel system pressure relief and disconnection.

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

BrandLang Tools
Part Number74447
CategoryExterior Components
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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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