Description

Replace your heavy stock K-member with one of these tubular QA1 Mustang K-members and, in addition to the weight savings, you'll get better steering geometry, less bump steer, reduced dive under braking, and quicker straight-line performance. Ideal for street performance, autocross, pro touring or drag racing, they easily bolt onto factory components without any wheel or tire fitment changes.

Features and benefits include:

* All mounting points are digitally-indexed from new factory K-members
* Made from high-quality, American-made, high-strength, low-alloy steel (HSLA) steel
* Weighs only 25 lbs.--over 50 percent lighter than stock K-members
* Increased header and oil pan clearance for easier maintenance and installation
* Modular design for versatility--bolt-in engine mounts can easily be swapped for future engine changes
* Improved geometry--maintains optimum anti-dive and minimizes bump steer with selectable rack height and optimal control arm positioning
* Ideal for Mustangs with a lowered stance
* Retain the factory wheel base

Note: For best results, QA1 control arms are strongly recommended

Product Overview

QA1's bolt-in K-members allow owners of 1979-1993 Mustangs to use the engine of their choice while enjoying the significant weight savings, increased header clearance, and improved geometry of a QA1 K-member. Made from high-quality American-made HSLA steel, this tubular design is over 50% lighter than the stock K-member, weighing only 25 lbs! Ideal for street performance, autocross, Pro-Touring or drag racing, these K-members maintain optimum anti-dive geometry and minimize bump steer issues on Mustangs with a lowered stance. And because they retain the factory wheel base, these K-members easily bolt on to factory components without any wheel or tire fitment changes. Bolt-in engine mounts sold separately. For best results, QA1 control arms are strongly recommended.

Features and Benefits

• Enhance performance & reduce weight
• Increase header clearance
• Enhanced geometry
• Maintain factory track width
• Multiple engine mounting options
• Made in the USA

Product Details

Brand:	QA1
Description:	QA1 79-93 Ford Mustang (w/o Engine Mounts) Tubular K-Member
Manufacturer Part Number:	MUK01
Part Number:	qapMUK01
Prop 65 - Short Label:	WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Prop 65 Yes/No:	Yes
Title:	QA1 Engine Crossmember MUK01
UPC:	806990151650

Kit Options

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb	SKU	Kit Title
	qapDK42-FMM1	QA1 79-86 Ford Mustang Level 2 Drag Kit w/ Shocks (1x qap5221, 1x qap5255, 1x qap52885, 1x qapBAX104M, 1x qapMUK01, 1x qapHD01-14150, 1x qapRCK52405, 1x qap52540)
	qapDK43-FMM1	QA1 79-86 Ford Mustang Level 3 Drag Kit w/ Shocks (1x qap5221, 1x qap5255, 1x qap52885, 1x qapBAX104M, 1x qapMUK01, 1x qapT121W, 1x qapHD01-14150, 1x qapRCK52409, 1x qap52540)
	qapHK42-FMM1	QA1 79-86 Ford Mustang Level 2 Handling Kit w/ Shocks (1x qap5221, 1x qap5255, 1x qap52892, 1x qapBAX104M, 1x qapMUK01, 1x qapHD01-12200, 1x qapRCK52407, 1x qap52740)
	qapHK43-FMM1	QA1 79-86 Ford Mustang Level 3 Handling Kit w/ Shocks (1x qap5221, 1x qap5255, 1x qap52892, 1x qapBAX104M, 1x qapMUK01, 1x qapT121W, 1x qapHD01-12300, 1x qapRCK52411, 1x qap52540)

Data: v4.2 - Upd: 2026-10-15 04:55:58

Features

Specifications

Product Attributes - Brand

QA1

Product Attributes - Manufacturer's Part Number

MUK01

Product Attributes - Part Type

K-Members

Product Attributes - Product Line

QA1 Mustang K-Members

Product Attributes - UPC

806990151650

Product Attributes - K-Member Material

Steel

Product Attributes - K-Member Color

Black

Product Attributes - Control Arms Included

No

Product Attributes - Coilover Springs Included

No

Product Attributes - Motor Mounts Included

No

Product Attributes - Steering Rack Included

No

Product Attributes - Quantity

Sold individually.

Compatibility