Air and Fuel› Fuel Injection Systems and Components - Electronic

HPI

D1NJ-1 Fuel Injectors

$285.95

SKU: HPI-D1NJ-1

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 Horsepower Inc. HPI-D1NJ-1 is a pair of yellow band fuel injectors designed for street riding. These injectors feature a flow rate of 6.20 g/s and a yellow/black/silver finish.
Show original supplier description
The Horsepower Inc. HPI-D1NJ-1 Yellow Band Fuel Injectors are designed to enhance performance for select Harley-Davidson motorcycles. These injectors boast a flow rate of 6.20 grams per second and are recommended for 'Big Inch' engines with large plenums that produce 120 horsepower or greater. Engineered for street riding, this pair of fuel injectors offers a significant 43% increase in flow over stock units. They are proudly Made in the USA, ensuring quality and reliability. The Yellow Band model features a distinct yellow, black, and silver color finish. Specifically, these HPI-D1NJ-1 fuel injectors are compatible with a range of Harley-Davidson models from 2001 to 2005, including various Softail, Electra Glide, Road Glide, Road King, and Dyna models. It is important to consult manufacturer publications and websites for precise fitment and application details, as modifications to the stock motorcycle could affect compatibility.

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

BrandHPI
Part NumberHPI-D1NJ-1
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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