Shop

Home

Parts

Owner Support
- Start Here
- Owner Support

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

Workshop

Specials & Offers

Quick Order

Home
Specials & Offers
Quick Order

A-505404M91: Muffler | Shop.Deere.com

Home

>
Engine Auxiliaries
>
Exhaust Components
>
A-505404M91: Muffler

Alternatives

A-505404M91: Muffler

Part Number: A-505404M91

Parts Tier: Alternatives

Product Details

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 Terms & Conditions: 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.

Perks Welcome Offer Details: 20% off John Deere and A&I Products parts, under $2,500 USD, excluding merchandise, which includes but is not limited to clothing, hats, licensed products, battery operated ride-on toys, Customer Service Advisor, collectible art, LEGO Technic Sets, and sales tax and shipping & handling charges. Offer valid on new qualifying purchases made between 1 May, 2025, and October 15, 2026, on Shop.Deere.com while quantities last. Not valid on purchases made at Factory Locations or on John Deere Store merchandise purchased from other retailers or using third party websites. 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. Returns and exchanges will be subject to discount taken at time of purchase. Offer subject to restrictions and change without notice. Void where prohibited. Additional exclusions may apply.

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
Accessibility
Terms of Use
Cookie Statement
Contact Us

Copyright © 2025 Deere & Company. All Rights Reserved.