12639277 Water in Fuel Indicator Sensor Compatible with 2001-2011 Silverado Sierra Truck 2500 2500HD 3500 3500HD 6.6L V8 Duramax Diesel Engine Fuel Filter
$25.19
- $5.99 shipping from United States View details
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- [Exact Replacement] Direct-fit sensor replaces OE numbers 12639277, 12639450, and 97384931. Designed for 2001-2011 Chevy Silverado and GMC Sierra 2500HD/3500HD with 6.6L Duramax diesel engines (LB7, LLY, LBZ, LMM, LML).
- [Premium Diesel Construction] Built with robust materials including a heat-resistant housing and high-sealing O-ring. This water separator fuel filter sensor withstands engine vibrations and extreme temperatures, providing long-term resistance to diesel and water exposure.
- [Reliable Functionality] The WiF sensor threads securely into the 6.6 duramax fuel filter. It accurately monitors moisture levels and sends an electrical signal to the Engine Control Unit (ECU) or dashboard lamp when water is detected, helping to restore proper fuel system functionality and protect injectors.
- [Easy Installation] Features a hassle-free design for quick filter-mount installation. Simply wrench-on the replacement at the fuel filter base to restore proper monitoring in minutes without the need for special tools. Includes integrated harness for a secure connection.
- [Enhanced Protection] Actively detects water to prevent false alerts and protect your engine from damage. Over time, factory sensors can break or leak, causing hard starts and poor performance. This upgraded sensor ensures your fuel filter 6.6 duramax diesel system operates smoothly and efficiently.
- [Exact Replacement] Direct-fit sensor replaces OE numbers 12639277, 12639450, and 97384931. Designed for 2001-2011 Chevy Silverado and GMC Sierra 2500HD/3500HD with 6.6L Duramax diesel engines (LB7, LLY, LBZ, LMM, LML).
- [Premium Diesel Construction] Built with robust materials including a heat-resistant housing and high-sealing O-ring. This water separator fuel filter sensor withstands engine vibrations and extreme temperatures, providing long-term resistance to diesel and water exposure.
- [Reliable Functionality] The WiF sensor threads securely into the 6.6 duramax fuel filter. It accurately monitors moisture levels and sends an electrical signal to the Engine Control Unit (ECU) or dashboard lamp when water is detected, helping to restore proper fuel system functionality and protect injectors.
- [Easy Installation] Features a hassle-free design for quick filter-mount installation. Simply wrench-on the replacement at the fuel filter base to restore proper monitoring in minutes without the need for special tools. Includes integrated harness for a secure connection.
- [Enhanced Protection] Actively detects water to prevent false alerts and protect your engine from damage. Over time, factory sensors can break or leak, causing hard starts and poor performance. This upgraded sensor ensures your fuel filter 6.6 duramax diesel system operates smoothly and efficiently.
Upgrade your vehicle's fuel system with our premium Diesel Water in Fuel (WiF) Sensor. Designed specifically for 2001-2011 Chevrolet Silverado and GMC Sierra 2500HD/3500HD models equipped with the 6.6L Duramax V8 diesel engine (including LB7, LLY, LBZ, LMM, and LML variants), this sensor is the perfect replacement for OE parts 12639277, 12639450, and 97384931.
Over time, factory fuel/water separator sensors can become brittle, crack, or leak, leading to hard starting conditions and diminished engine performance. Our upgraded sensor is engineered to solve these issues. It features a durable construction with a high-quality sealing O-ring that ensures a tight fit against the fuel filter base. The robust housing is designed to withstand the harsh environment of a diesel engine, including extreme temperatures and constant vibration.
The primary function of this sensor is to monitor the moisture levels within your diesel fuel. When water is detected, it promptly sends a signal to your vehicle's Engine Control Unit (ECU) or illuminates the dashboard warning light. This early detection is crucial for preventing water from reaching your fuel injectors, thereby avoiding costly engine damage and maintaining optimal performance.
Installation is straightforward and hassle-free. The sensor is designed as a direct-fit replacement, allowing you to easily thread it into your existing fuel filter setup without the need for specialized tools. Whether you are performing routine maintenance or replacing a faulty sensor, this product provides the reliability and peace of mind you need for your Duramax diesel truck.
Processing Time
- We process and ship orders Monday through Friday, excluding holidays.
- Most orders are processed within 1–3 business days, depending on product availability.
- Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.
Shipping Coverage
We currently ship to addresses within the United States only.
Products may ship from:
- Our U.S. warehouses, or
- Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).
Each product page clearly displays the “Ships From” location before checkout.
Shipping Methods & Estimated Delivery
| Shipping Method | Estimated Delivery | Cost |
|---|---|---|
| Free Shipping (US) | 5–10 business days | Free, available on eligible items |
| Standard Shipping (US to US by Item) | 5–10 business days | $5.95 for the first item, $3.00 each additional |
| Standard Shipping (From US Warehouse by Weight) | 3–7 business days | Starts at $5.95, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb. |
| Extended Delivery (Ships from Overseas Warehouse) | 10–20 business days | $14.99 for the first item, $2.00 each additional |
Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.
Free Shipping
We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout.
Carriers
We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.
Import Duties & Taxes
All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.
Tracking & Notifications
Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.
You can track your shipment anytime using the Track Your Order page on our website.
Order Changes & Cancellations
If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.
Contact: support@ibspot.com
Item Not Received
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- Check with your local USPS or UPS office.
- Confirm that the shipping address provided was correct.
- If the issue remains unresolved, contact support@ibspot.com for assistance.
Damaged or Lost Parcels
If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.
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For any questions about shipping, tracking, or delivery, our customer support team is here to help.
Email: support@ibspot.com
We’re always happy to help.
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We aim to ensure every customer has a smooth and transparent experience with ibspot.com.
Order Cancellation Policy
Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.
How to Request a Cancellation
You can contact us through:
- Email: support@ibspot.com
- Contact Form: Submit a request through our Contact Us page
Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.
Return Policy
We accept returns for most items within 30 days of delivery for a full refund.
To be eligible for a return:
- The item must be unused, in the same condition as received, and in its original packaging.
- A tracking number must be provided to confirm the return shipment.
Non-Returnable Items
Certain products cannot be returned, including:
- Perishable goods (for example, food, flowers, newspapers, magazines)
- Intimate or sanitary goods
- Hazardous materials or flammable liquids/gases
- Gift cards
- Downloadable software
- Some health and personal care items
Partial Refunds (If Applicable)
Partial refunds may be granted in specific situations, such as:
- Books with obvious signs of use
- Opened CDs, DVDs, software, or vinyl records
- Items not in their original condition, damaged, or missing parts not due to our error
- Items returned more than 30 days after delivery
How to Return an Item
To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.
Shipping Cost for Returns
Please contact us before returning any item.
We may provide a return shipping label for your return. If the return is due to our error, such as receiving the wrong item, a damaged item, or a defective product, we will cover the return shipping cost.
If the return is due to the customer’s reason, such as ordering the wrong item, changing your mind, or no longer needing the item, the original shipping fee and the return label fee will be deducted from your refund amount.
If a return is sent back without prior contact or without using our provided label, we cannot be held responsible for any return shipping costs or delivery issues.
For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.
Refund Processing
Once your return is received and inspected:
- In-store returns are refunded to the original form of payment or issued as a gift card.
- Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.
Please allow:
- 5–7 business days for the return to reach our Returns Center.
- An additional 3–10 business days for your bank to post the refund to your account.
Damages, Issues & Claims
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If you receive a defective, damaged, or incorrect item, contact us right away at support@ibspot.com.
We’ll evaluate the issue promptly and make it right.
Product Claims
Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.
Exchanges
We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.
Return Address
IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States
Customer Support
Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.
Email: support@ibspot.com
Contact Form: Contact Us page
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