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Item #:
66107477
K-SEAL ST3501 Ultimate Head Gasket Repair 16oz K Seal KSEAL
81% of respondents would recommend this to a friend
Item #:
66107477
XCD 132
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Order now and get it around Thursday, September 17
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K-Seal ULTIMATE is the simple, permanent fix for blown head gaskets, cracked heads and blocks, and porous engine blocks.
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What Stands Out
Quick Fix Solution
K-Seal ST3501 provides a fast and reliable method to permanently seal leaks, saving time and expensive repairs often associated with head gasket issues.
Universal Compatibility
This 16oz formula works with all types of vehicles and coolant systems, making it versatile for any DIY mechanic or professional looking to remedy coolant leaks.
Durable Protection
Once applied, K-Seal creates a long-lasting bond that withstands high pressures and temperatures, ensuring sustained performance and peace of mind for drivers.
Product Details
| Brand | K Seal |
| Type | Head Gasket Repair |
| Volume | 16oz. |
| Manufacturer Part Number | ST3501 |
| Package Quantity | Pack of 1 |
| Country/Region of Manufacture | United States |
| California Prop 65 Warning | p65 |
| UPC | 855959003080 |
| Item Weight | 1.2 lbs (540 grams) |
Who Should Buy?
-
DIY Car Owners
Ideal for car enthusiasts looking to perform quick repairs on minor head gasket leaks without professional help.
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Older Vehicles
Great for maintaining older models prone to head gasket failures, saving costs on extensive repairs.
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Emergency Situations
Perfect for emergency fixes, allowing drivers to safely reach a mechanic without risking further engine damage.
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Severe Damage
Not suitable for vehicles with significant head gasket damage requiring more intensive mechanical interventions.
Product Description
About This Item
Looking for a reliable solution to repair your vehicle's head gasket and coolant system? Look no further than the K-SEAL ST3501 Ultimate Head Gasket Repair! This 16oz coolant leak fix is designed to provide a permanent seal for head gasket leaks, engine block leaks, and even water pump leaks. Say goodbye to costly repairs and endless maintenance with the K-SEAL ST3501. This gasket sealer is an effective engine coolant stop leak and radiator sealant that is trusted by car owners worldwide.
Its advanced formula is engineered to withstand high pressures and temperatures, ensuring a long-lasting repair for your vehicle's coolant system. Whether you're a DIY enthusiast or a professional mechanic, the K-SEAL ST3501 Ultimate Head Gasket Repair is a must-have in your vehicle maintenance arsenal. Don't let coolant leaks and engine issues hold you back. Trust K-SEAL ST3501 to keep your engine running smoothly and efficiently.
Get your 16oz bottle today and experience the ultimate solution for your vehicle's coolant repair needs.
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Customer Questions & Answers
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Question:
What kind of engine does K-Seal ULTIMATE work with?
Answer: K-Seal ULTIMATE works with all water-cooled engines. -
Question:
Do I need to drain or flush my cooling system before using K-Seal ULTIMATE?
Answer: No, there's no need to drain or flush your cooling system. -
Question:
How many bottles of K-Seal ULTIMATE do I need for larger engines?
Answer: For larger engines, use two bottles.
k seal Editorial Review
K-SEAL ST3501 Ultimate Head Gasket Repair 16oz K Seal KSEAL is highly effective for sealing leaks in your engine. Many users have reported quick results, with one noting that a leak stopped within minutes of application. This product is well-suited for those facing major leaks, allowing time to prepare for more significant repairs. Made in the United States and weighing just 1.2 lbs, it offers convenience and ease of use for car enthusiasts looking to prolong the life of their vehicles. With impressive testimonials highlighting its usefulness, K-SEAL stands out as a reliable choice for head gasket repair.
Customer Reviews & Ratings
24 customers ratings
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5 Star
66%
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4 Star
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1 Star
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Pros
- Effectively stops leaks quickly
- Saves costs on engine rebuilds
- Suitable for various vehicle models
- Easy application process
- Compact 16oz size for storage
Cons
- Some may find it works only temporarily
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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Emmanuel
Verified buyer
“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
31 August 2026 · via Trustpilot
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fnd
Verified buyer
“The delivery was fast and the product came undamaged and authentic.”
29 August 2026 · via Trustpilot
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Leana
Verified buyer
“Ubuy is extremely efficient and to order online is an easy process. The verity of products to buy is really unlimited! My order was urgent and I got it on time. The products are great! Thank you Ubuy!”
25 August 2026 · via Trustpilot
HL
Hengo
Verified buyer
“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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XCD 132
Order now and get it around Thursday, September 17
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QTY:
Only 1 item left in stock.
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Features & Benefits
- One bottle of K-Seal ULTIMATE can fix blown head gaskets and cracked heads in cars, SUVs, and small trucks.
- Works with all water-cooled engines.
- No need to drain or flush your cooling system.
- Compatible with any antifreeze or coolant previously used.
- Just pour K-Seal ULTIMATE into your cooling system and you're back on the road.
- For larger engines, use two bottles.
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