My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

QA1 KMR4-5T K Series 3-Piece Carbon Steel PTFE Rod End 1/4" Bore 5/16-24 RH Male

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

KMR4-5T
6 reviews
Sale Price

$11.71

Estimated ship date Friday, November 20

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The QA1 KMR4-5T is a K Series three-piece carbon steel male rod end featuring a self-lubricating PTFE race lining for reduced friction and extended service life. Designed for precision suspension, steering, and linkage applications, it combines a durable alloy steel body with a hard chrome plated bearing ball for consistent, reliable performance in both street and motorsport environments.

Key Features:

  • Three-piece construction — alloy steel body with separate race and ball assembly for serviceability and strength
  • PTFE race lining — self-lubricating liner reduces friction and wear without the need for frequent greasing
  • Ball material: 52100 bearing steel, heat treated, hard chrome plated, and precision ground
  • Race material: Alloy steel, corrosion and wear resistant, PTFE lined
  • Body material: Carbon steel (alloy steel), protective coated for corrosion resistance
  • Bore: 1/4 in. (0.250 in.)
  • Thread: 5/16-24 right-hand male
  • Male mounting configuration — right-hand thread orientation
  • Available in right- and left-hand thread versions across the K Series lineup

QA1's KM-T Series rod ends are precision-engineered components suitable for custom suspension builds, race car fabrication, steering linkages, and other high-load pivoting applications. The protective body coating guards against corrosion in demanding conditions, making this rod end a dependable choice for both on-track and on-road use.

Products specifications

A (+/-0.015)

1.875

Approx Bearing Weight

0.07

B (+0.0015/-0.0005)

0.25

Ball Dia Ref

0.5

C (+0.062/-0.031)

1.25

D (+/-0.010)

0.875

Grease Fitting

No

Heat-Treated

Yes

Jam Nut Included

No

Misalign Angle

13

Notes

Only rod end ball and race are heat-treated.

Quantity

Sold individually.

Rod End Attachment

Male threads

Rod End Ball Width

0.375 in.

Rod End Centerline Length

1.875 in.

Rod End Construction

3-piece

Rod End Finish

Zinc plated

Rod End Head Bore Size

0.250 in.

Rod End Head Diameter

0.875 in.

Rod End Head Width

0.375 in.

Rod End Material

Carbon steel

Rod End Misalign Angle (degrees)

13 degrees

Rod End Static Load Capacity

3,467 lbs.

Rod End Style

PTFE lined

Rod End Thread Size

5/16-24 RH in.

T (+/-0.005)

0.281

Thread Length

1.250 in.

Thread Type

Right Hand

Thread UNF-3A

5/16 -24

UTL Radical Static

3467

W (+0.000/-0.005)

0.375

Prop 65

WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

Title

QA1 Suspension Rod End Bearing KMR4-5T

Website is easy to manage

Finding the part I needed couldn't be easier and a great price.

The PayPal option did not work when trying to place the order even though it did take me to PayPal's site for login. Had to place order via my CC instead.

nice

Very convenient!

Needed a pair of brake pads all the way around for my car, Autoplicity had the exact parts in stock and also the best price. Shipped same day. Very Pleased. Order # 19227

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy