Skip to content

Fueltech - Bosch LSU 4.2 Wideband O2 Sensor

Marsoni M251S
Sale price$99.99
Pay 4 payments of $25.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Fueltech - Bosch LSU 4.2 Wideband O2 SensorFueltech Bosch LSU 4. 2 Wideband O2 Sensor The Bosch LSU 4. 2 Wideband O2 Sensor supports closed loop O2 maintaining optimal fuel delivery by delivering accurate measurements of the engine's air fuel ratio to the ECU in real time. Compatible with unleaded gasoline, ethanol gasoline blends, methanol, and diesel. Thread size of M18 x 1. 5 To operate the sensor effectively, it must be paired with a wideband O2 signal conditioner (also referred to as a
Easy Shipping

Quick Dispatch:

Your Fueltech - Bosch LSU 4.2 Wideband O2 Sensor 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 Fueltech - Bosch LSU 4.2 Wideband O2 Sensor ships.

Need Help?
Questions about Fueltech - Bosch LSU 4.2 Wideband O2 Sensor, 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 Fueltech - Bosch LSU 4.2 Wideband O2 Sensor 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
4.2 ★★★★★
Based on 900 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Christin
Pawtucket, US
★★★★★ 5
Always there
Very simple claim process. Reliable coverage that's worth the cost.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
J
Verified Purchase
Jan
Charlottesville, US
★★★★★ 5
Definitely Worth It
Quick and easy process. Coffee maker died and I had the insurance. Refunded and only ended up paying the price of insurance. Would do it again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
C
Verified Purchase
Chris
Whiting, US
★★★★★ 5
Claim was easy, speedy, and Amazon gift card was applied almost immediately.
I had to make a claim for a Ninja blender that was emitting an odor of burning or melting wires. I called a service representative thinking I might encounter a problem and was surprised. The agent was helpful and made the entire process so easy I applaud her! The Amazon gift card was posted to my account almost immediately after UPS picked the product up. I have decided that for products with a large number of parts and electronics that can fail I will purchase Asurion protection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
S
Verified Purchase
Sharon A. Hall
Lake Worth, US
★★★★★ 1
Asurion "Assures" nothing!
Asurion has terrible Customer Support. All machine based. They give you no phone # for human interaction. Their online Support process is very close-ended. It is a checklist designed to frustrate purchasers whose issue lies outside only the very issue. My issue: I bought "Cuisinart TOB-40FR Custom Classic Toaster Oven Broiler, Silver (Renewed)" on May 26, 2024. It stated it had a 90 day warranty. So I bought an Asurion Protection Plan also to cover it for 3 years. The toaster started flaking off metal finish inside the oven over the cooking area. I tried to file a claim with Asurion and they told me the Manufacturers warranty was still in effect and I should contact Cuisinart. This despite the oven was sold with a Amazon Renewed verbiage stating a 90 day warranty. And they have nothing on their "Machine Checklist" to cover this eventuality. And I would assume I am not the only one who takes the "Renewed" route and backs it up with a "Protection Plan". They will frustrate you no end. I suspect, like many insurances, they seek to deny, deny, deny, in hopes the purchaser will give up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
D
Verified Purchase
Darla
Phoenix, US
★★★★★ 4
GIFT CARD AS REPLACEMENT, NO CHOICE OF CHECK OR REPLACEMENT. GOOD COMPANY
PROS: * A decent company, responsive and fair. * Allows you to buy items from anywhere you want, and buy the warranty at Amazon. * Provides better coverage than other warranties, and covers more, including breakage! CON: They don't send you a check in order to buy wherever you want, send a replacement, or give you a choice. Instead, they send you an Amazon Gift Card. That's OK if you're a big Amazon shopper, but sometimes, you can get a better price elsewhere.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025

recommand products