15% OFF ORDERS $50+ | 20% OFF $100+ | ONLINE ONLY
USE CODE
FIREWORK
*
Exclusions apply.
Advance Auto Parts Logo
Choose a Store
  • Shop All
  • Replacement Parts
  • Performance Parts
  • Accessories
  • Oil & Fluids
  • Special Offers
  • Advance Rewards
  • Advice & How-Tos
  • Project Guides
  • FAQ / Help Desk
Loading...
Share
Product thumb
Product thumb
Product thumb
Product main large

Dorman - Help Gasket For Oxygen Sensor

(15 reviews)
Part # 47021
1 year warranty
Loading...
How Would You Like To Get This Item?

Store Pickup

Loading...Loading...Loading...

Same Day Home Delivery

Loading...Loading...Loading...

Home Delivery

Loading...Loading...Loading...
Loading...
Loading...
Loading...Loading...Loading...Loading...Loading...

Product Information

Product Details
Part No. 47021
Warranty Details (1 Year Warranty)
This oxygen sensor gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement - this oxygen sensor gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality - this gasket is made to fit and fully restore part functionality after the original gasket fails
  • Durable construction - this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Specifications
Material:
Steel

Thickness:
0.083 in
Loading...
Loading...Loading...Loading...Loading...Loading...
4.67 out of 5
15 Customer Reviews
100% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
13
4 Stars
0
3 Stars
1
2 Stars
1
1 Star
0
Pros
4
Easy To Use
1
Durable
Cons
No Cons
Best Uses
2
Trucks
1
Small Cars
Car/Motorcycle Describe yourself
3
Casual Driver
2
Mechanic
1
Auto Enthusiast
1
Truck Enthusiast
Most Liked Positive Review
Direct Fit Gasket
This O2 sensor gasket was a direct fit to replace the OE gasket that failed because the lock nuts came loose over time. Hardest part of the replacement was cleaning up the threads on the flange bolts which were rusty. Fortunately I had the 8 mm thread reamer that was required. I have used Dorman products before and have always been suitably pleased with the quality. Their products are well made with obvious attention to detail. This gasket was no different. It fit the flange and bolt hole alignment perfectly. I will continue to use their products in the future.
Most Liked Negative Review
Double check the size before you buy.
Not the correct size for my application , even though website said it was . Made it work w/ modification. Seems to seal OK.
Reviewed by 15 Customers
Didn't need it!
Staff Reviewer -
Returned it to the store. Didn't know that the new sensor I also bought came with one!
would buy again
Verified Buyer -
ordered on line, picked up in store 20 mins later, excellent.
I would buy this product again.
Verified Buyer -
Perfect fit. Worked as indicated.
I would recommend this product.
Verified Buyer -
Cheap and seals great
Oxygen sensor gasket
Verified Buyer -
Oxygen sensor gasket for 2004 Toyota highlander, good price and in stock.
Displaying Reviews 1 - 5Back to Top
Loading...
Loading...Loading...Loading...Loading...Loading...
No results
Loading...
Loading...Loading...Loading...Loading...Loading...
Feedback
Be The First To Know About Deals And Promotions.
Plus, create an account to receive $5 off of $20 or more.
TOP REPLACEMENT PARTS
Brake Pads & Shoes
Brake Rotors
Alternators
Water Pumps
Starters
Brake Calipers

Order Lookup

Help Desk

Store Locator

In Store Services

Mobile App

CUSTOMER SUPPORT
Accessibility Statement
Contact Us
Forgot Password
Help Desk
In Store Pickup
In Store Services
Order Tracking
Recall Information
Return Policy
Same Day Delivery
© 2026 Advance Auto Parts
Privacy Policy
Terms of Use
Site Map
ADVANCING A WORLD IN MOTION®