Shop

Home

Parts

Owner Support
- Start Here
- Owner Support

Merchandise
- Shop All Merchandise
- Apparel
- Accessories
- Hats
- Home
- Toys
- Brand Collection

Workshop

Specials & Offers
- Promotions
- Featured Offers
  - 15% Off Select John Deere Undercarriage Components
  - Promotions

Quick Order

Home
Quick Order

A-T21520: Steering Arm, Left Side | Shop.Deere.com

Home

>
Steering System
>
Steering Arms & Tie Rods
>
A-T21520: Steering Arm, Left Side

Alternatives

A-T21520: Steering Arm, Left Side

Part Number: A-T21520

Parts Tier: Alternatives

Generally, parts purchased from Shop.Deere.com are covered by the John Deere Parts Warranty, covering defects in material and workmanship, for a minimum period of 6 months from receipt. For complete warranty information, please contact your local authorized John Deere dealer.

Built to Keep You Running

Subscribe to Shop.Deere.com emails for first looks at our latest products and offers! Plus an exclusive 10% off select merchandise welcome offer.

Get Started

Free Shipping Offer Details: FREE Ground 3-5 Day Shipping with $50 purchase. Applies to orders placed online at Shop.Deere.com. Free Shipping applies to Standard Delivery on orders over $50 sent to a single shipment address in the United States. Qualifying purchase based on pre-tax, post-discount amount. Additional Shipping & Handling applies for select items or shipments to more than one shipment address. Merchandise subject to availability. Offer subject to restrictions and change without notice. Void where prohibited.

Undercarriage Components Promotion Details: Offer valid on qualifying John Deere undercarriage components for Compact Track Loaders and Compact Excavators, to be applied to the total purchase price before applicable taxes. Offer valid between May 1, 2026, to July 31, 2026, at participating John Deere dealers in the US & Canada. Receive 15% off dealer list price on John Deere undercarriage components when qualifying parts are purchased. Other restrictions may apply. Offer cannot be combined with any other offer and may be discontinued or modified without notice at any time. No cash value. See your John Deere dealer for details.

Back to School Sale Restrictions: Valid only July 20^th, 2026 (06:01 am CT) through July 31, 2026 (11:59 pm CT). Receive 20% Off Kids Apparel purchased in a single sales transaction at Shop.Deere.com (online orders) or in-store at the Moline pavilion location. Subject to availability while supplies lasts. Not valid on purchases made at Factory Locations or on John Deere Store merchandise purchased from other retailers or using third party websites. Offer excludes battery operated ride-on toys, LEGO Technic sets, sales tax, shipping & handling charges, collectible art, and items from the following categories: Genuine Parts. Additional exclusions may apply. Offer cannot be combined with any other offer or discount, except available shipping offers. Free Shipping applies to Standard Delivery on orders of $50 or more sent to a single shipment address in the United States. Additional Shipping & Handling applies for select items or shipments on oversized items. No adjustments to prior purchases. Merchandise subject to availability. Returns and exchanges will be subject to discount taken at time of purchase. Offer subject to restrictions and change without notice. Void where prohibited.

Customer Service

Start A Return
FAQ
Contact Us
Payment Information
Shipping & Handling
Warranty & Return Policy
Privacy Policy
Terms & Conditions
Cookie Preferences

Account

Account
Track Order
Email Sign Up
Create Account & Join Us

Products

Equipment
Find a Dealer
Buy Equipment Online
Build Your Own

Our Sites

Deere.com
Operations Center

Follow Us

instagram icon
facebook icon
linkedin icon
x icon
youtube icon

Site Map
Privacy & Data
Cookie Statement
Terms of Use
Accessibility
Contact Us

Copyright © 2025 Deere & Company. All Rights Reserved.