Electrical & Lighting Engine & Drivetrain Brakes, Suspension, & Steering Body Tire & Wheel Other Parts & Supplies Top Searches

MACK 21407621 Fuel Injector

★★★★★ (0)

$241.99

Limited availability at this price!

In Stock

Get as soon as Tuesday, Oct 6
30-day Return Policy On eligible items Details
Free Ground shipping on orders over $499 details
Orders placed over the weekend will be processed the next business day.

MACK 21407621 Part Description

Manufacturer

MACK

Features & Benefits

  • Keeps your engine pulling strong with consistent fuel delivery that helps prevent power loss under load
  • Cuts down on smoke and rough running by improving how fuel burns in the cylinder
  • Prevents fuel leaks into the cylinder with a tight-sealing injector tip that protects against washdown and wear
  • Handles heat and pressure on the road with durable internals built for long hauls and heavy-duty use
  • Helps maintain smooth idle and throttle response by delivering steady fuel flow through the rail system

Mack Fuel Injector

The Mack Fuel Injector delivers a precise diesel spray into the combustion chamber to maximize engine efficiency and power. Calibrated specifically for Mack MP8 engines, this high-pressure unit ensures proper timing and fuel volume during each injection cycle. The engineered nozzle spray pattern promotes complete combustion, reducing soot output and emissions. Maintaining consistent rail pressure, the Mack 21407621 injector prevents rough idling and power loss associated with worn components.

MACK 21407621 Cross References

BrandPart Number
PAI880850

MACK 21407621 Customer Reviews

No reviews yet

Be the first to review this product!

Write a Review

Mack 21407621 Fuel Injector Fuel Injector

MACK 21407621

Fuel Injector

*
*

Maximum 100 characters.

Maximum 500 characters.

Order number must be in the format F followed by 9 digits (e.g., F100000000)

*

You can upload up to 3 images to help illustrate your review. Supported formats: JPG, PNG, GIF, WebP

* Required fields

Review Guidelines

  • • Focus on the product's performance and quality
  • • Include details about installation and usage
  • • Be honest and constructive in your feedback
  • • Avoid personal information or inappropriate content

Please complete the reCAPTCHA verification to submit your review.

MACK 21407621 Manufacturer Information

Mack trucks are built to last, but when the time for repair and maintenance comes it’s strongly recommended to use genuine Mack® components. Designed and manufactured according to strict OEM specifications, Mack parts offer the same engineering and performance as their stock equivalent. This ensures a seamless fit, smooth installation, and reliable operation overall. Mack offers a wide range of genuine parts, including engine, exhaust, transmission, cab, and body parts and accessories. It also offers remanufactured components that offer the same good-as-new quality at a more accessible price range. All genuine Mack parts are tested in both the laboratory and field environments to ensure they meet or exceed industry standards.

MACK 21407621 Questions & Answers

No questions yet

Be the first to ask a question about this product!

California Proposition 65 Warning California residents see

Related Searches

Recommended Products

More from MACK

(Browse all)