Search  for anything...

ACDelco Professional 45C1123 Steering Linkage Idler Arm

  • Based on 379 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $13.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: 12 left in stock
Fulfilled by Amazon

Arrives Friday, Jul 4
Order within 19 hours and 23 minutes
Available payment plans shown during checkout

Features

  • Helps turn your vehicles wheels in reaction to your steering wheel
  • Coated with a corrosion resistant material
  • Sealed boot helps prevent contamination and maintains lubrication
  • Larger one-piece design for reduced wear and increased carrying capability

Description

ACDelco Professional Idler Link Arms are the supporting pivot point to your vehicle’s steering linkage, and are a high quality replacement for many vehicles on the road today. These arms help turn your vehicle’s front wheels in reaction to the steering wheel while driving. These premium aftermarket replacement components are manufactured to meet your expectations for fit, form, and function.

Manufacturer: ‎ACDelco


Brand: ‎ACDelco


Model: ‎Steering Linkage Idler Arm


Item Weight: ‎4.45 pounds


Product Dimensions: ‎10.7 x 4 x 3 inches


Country of Origin: ‎Taiwan


Item model number: ‎45C1123


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Machined


Manufacturer Part Number: ‎45C1123


OEM Part Number: ‎19136508


Date First Available: October 10, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • AC Delco Professional is the way to fly
AC Delco Professional is the way to fly. The idler mount, arm, and pitman arm are only about $60 total more than the same parts in the ACDelco Advantage line, but the Professional line is much beefier. They work for the GMT 800 trucks. Strongly recommend the OTC 6496 Close Quarters Pitman Arm Puller for Truck/SUV, given the frame on these trucks; that puller is the best $60 your may ever spend. In addition to stopping the tire wear issues with the old idler and pitman arms, this made a huge difference in the ride quality of my truck at highway speeds! I used Mystik JT-6 Hi-Temp lithium-complex grease to lube them up, and all the ball joints and tie rods. It's a high temp grease for wheel bearings, but cheap and has killer specs (they do list it as a chassis grease). ... show more
Reviewed in the United States on April 5, 2018 by Vetteboy

  • 2005 Hummer H2
Fit on 2005 Hummer H2. I initially went with the Moog but the Moog wouldn't fit in the mounting frame without modification. This fit perfectly.
Reviewed in the United States on October 18, 2024 by Digby

  • Quality and perfect fit
Seems to be a solid well built part which should last a while - I made the mistake of buying cheaper front end kit made by Detroit diesel which lasted less than 5k miles ! Should have purchased the oem quality the first time around and saved myself twice the headache of replacing these parts ! Lesson learnt ! ... show more
Reviewed in the United States on December 16, 2020 by Zameer Minhas

  • GOOD FIT
OK
Reviewed in the United States on October 24, 2018 by joe

  • Worked perfectly
Still going worked perfectly would buy again fast shipping
Reviewed in the United States on April 12, 2023 by Jeff S

  • Unlike Moog and Proforged, This Isn't Unnecessarily and Detrimentally Stiff
I tried Proforged and Moog (which turned out to literally be the same thing as far as anyone can tell) and found the idler arm rotation on them was so stiff it bogged my power steering down. I had to use my entire 200 lbs. body to get the idler arm to rotate once mounted to this such that I can position it for install. That's not right at all... makes no sense. It shouldn't be much stiffer than rotating the steering gear box itself. So I returned those and tried this one and, for good measure, used the ACDelco idler arm. Finally I have my power steering back again. And, yes, I checked my pump. It's fine. And I'm not about to use a reman if I don't need one. ... show more
Reviewed in the United States on March 20, 2020 by wildcatgoal

  • Great quality part
This is a great quality part. It was pretty easy to replace and fit perfectly in place of the original one on my 05 silverado 1500. Cant beat the price also
Reviewed in the United States on January 10, 2020 by Amazon Customer

  • is this official ACDelco, or is there now a gray market for ACDelco parts?
not completely sure if this is a true acdelco part, or if their quality has gotten this bad. the remove greese zirk fitting isn't usable because it doesn't even have the correct thread count! I doubt there's anyway to get the correct adapter without a full return, and maybe getting lucky with another part. ... show more
Reviewed in the United States on May 19, 2025 by Ben W

Can't find a product?

Find it on Amazon first, then paste the link below.