K-Seal Engine Block Cylinder Head Gasket Radiator Coolant Stop Leak 236ml K5501

GBP 12.79
ApproximatelyUS $17.05
Condition:
New
More information - About this item condition
More than 10 available232 sold
People want this. 34 people are watching this.
This one's trending. 232 have already sold.
Shipping:
May not ship to United States. Read item description or contact seller for shipping options.
Located in: Glasgow, Glasgow (City of), United Kingdom
Delivery:
Varies
Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
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eBay item number:280792090156
Last updated on Dec 06, 2025 06:50:16 PSTView all revisionsView all revisions

Item specifics

Condition
New
Stock Code
0764923
Custom Bundle
No
Manufacturer Part Number
K5501
Modified Item
No
Reference OE/OEM Number
K5501
Brand
K-Seal
Model/ Series
All Models
Type
Sealant
Volume
236ml
Manufacturer
All Manufacturers
Intended Use
Modification/ Enhancement
Subtype
Engine Care
EAN
5060002968017
Country of Origin
United States
Category

Item description from the seller

Seller business information

VAT number: GB 717348818

About this seller

AutoGear247

99.8% positive feedback154K items sold

Joined Jun 2009
We are Limited Company and specialize in Car Accessories Gadgets, Interior, Exterior Styling and Performance, Exhausts, Seat Covers, Wheel Trims, Power inverters, Adaptors, Car lighting, Lamps, Audio, ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (70,510)

All ratingsselected
Positive
Neutral
Negative
  • 9***r (16)- Feedback left by buyer.
    More than a year ago
    Verified purchase
    WOW! Honestly, I can't believe this product worked, I had water dripping out from somewhere couldn't see, so from cold start, I shook the bottle well, poured it in and let it tick over for about 45 mins, no water no leaks, I'm genuinely gobsmacked, what a great product, and the reason I bought from here, the free gift, its not that I wanted it, its was just that bit extra with your order, in this case tipped the scales.....
  • u***6 (432)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great product seals leaks fast Great stuff.
  • 3***h (64)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    very good worked as advertised
See all feedback

Product ratings and reviews

4.6
617 product ratings
  • 507 users rated this 5 out of 5 stars
  • 41 users rated this 4 out of 5 stars
  • 18 users rated this 3 out of 5 stars
  • 15 users rated this 2 out of 5 stars
  • 36 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • Top favorable review

    The cheeper quicker hassle free alternative

    This was something recommended to me by a friend. and now my car love's me again. it's fantastic easy to use small enough to keep in your car as an emergency tool. if you're car is getting hot under the collar, try k-seal before going to a garage and it may save you hundreds in labour and parts and a lot of time too. all instructions for use are easily understandable, (warnings too) I wish I'd invented it.

    Verified purchase: YesCondition: New

  • Top critical review

    K seal

    Used in my ford mondeo mk4 diesel. and ended up choking up my radiator and heater matrix giving me bad back pressure and causing low or no flow through coolant system forcing coolant out expansion bottle also had no heating as heater matrix got choked up with the k.seal. ended up having to flush out full coolant system and radiator and matrix as was loosing coolant due to blockage and forcing coolant out of expansion bottle .maybe work for other cars but wouldnt recomend for mk4 mondeo 1.8tdci as caused a small coolant leak to turn into major problems before i added to coolant system could run car for 150 to 250 miles before adding coolant and after adding k.seal car overheated on a 2 mile run .

    Verified purchase: YesCondition: NewSold by: clickcarparts

  • No fix because..

    Perhaps its a nice product but in my occasion did nothing because i had the type of head gasket problem that exhaust gases mix with coolant so because of the pressure no k-seal mixed with coolant can reach the head gasket leak

    Verified purchase: YesCondition: NewSold by: 123_autocare

  • Tried them all

    Yes I've tried them all over the cars I've owned, I won't mention any brands, but this is the only one that jot only works, permanently works! Or at least plenty long enough to save up the cash to fix the job properly. Don't waste your time with others, this is the best!

    Verified purchase: YesCondition: NewSold by: the_car_parts_warehouse

  • Excellent if used correctly!

    If used correctly this works great this saved me over £1000 used on a super bike, will only seal small leaks so don't moan if it don't seal a massive hole , mix with coolant 1st and put directly in to radiator and DONT use too much, less is best I used just under half a bottle on a massive 1448cc superbike, those that moan about it clogging up parts used too much 👍

    Verified purchase: YesCondition: NewSold by: candccarspares2010