Skip to content

MK4 Before-Catalyst Oxygen Sensor (1.8T)

Marsoni M251S
Sale price$119.99
Pay 4 payments of $30.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
MK4 Before-Catalyst Oxygen Sensor (1.8T)The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best in class performance and maximum service life. > OE Equivalent. > Direct fit for easy installation. > OE Style connectors and wire lengths. > Base ceramic probe of Zirconium and Yttrium. > Patented Platinum Power Grid. > Fine
Easy Shipping

Quick Dispatch:

Your MK4 Before-Catalyst Oxygen Sensor (1.8T) orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your MK4 Before-Catalyst Oxygen Sensor (1.8T) ships.

Need Help?
Questions about MK4 Before-Catalyst Oxygen Sensor (1.8T), sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for MK4 Before-Catalyst Oxygen Sensor (1.8T) in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 223 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
CFM
Carnegie, US
★★★★★ 3
Neutral
Size: 4.5"
She chewed it up in less than 10 minutes. This is not for heavy chewers but dogs that like to actually play with their toys it would be great!!! I gave it a 3 because it worked for my other dog who likes to play🤘
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
K
Verified Purchase
Keith K
Draper, US
★★★★★ 5
Perfect for Blind Dogs, Fun and Durable
Size: 2-pack, Style: Duo
My blind dog loves these Chuckit! sniff balls. She can easily sniff them out and plays fetch with them for 20 minutes a day, even running up and down the stairs. The balls are durable, bounce well, and the bacon and peanut butter scent keeps her engaged. I do wish Chuckit! would bring back the version with a tone so we could play fetch outside more easily. Overall, a fantastic toy for dogs that rely on scent and a fun way to keep them active.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
S
Verified Purchase
S L
Battle Creek, US
★★★★★ 5
My Golden Loves
Size: 2-pack, Style: Duo
My 8 month old Golden Retriever loves these. It is also one of the few products she cannot destroy. They smell as described and she loves to chew them and play fetch when. She can chew these easily without destroying them. Overall good value for the money for my Golden
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 5
My dogs are obsessed with this ball
Size: 2-pack, Style: Duo
Great quality! I have 2 boxers that love it and the ball is still intact
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
D
Verified Purchase
Dianna H
Dallas, US
★★★★★ 5
Not Scented, but Dog Approved
Size: 2-pack, Style: Duo
They don't smell like peanut butter or bacon. But our dogs still love them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 31, 2025

recommand products