
4157 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $30.77 | Condition is New, Transtar Autobody Products 4157 - Ultra Flex Seam Sealer - 11 oz Cartridge - Bei, FREE SHIPPING | 99.8% |
![]() | $34.07 | Condition is New, Transtar 4157 Ultra Flex 4157 Seam Sealer 11 oz. Cartridge Beige (One Tube), FREE SHIPPING | 99.9% |
![]() | $35.50 | Top Pick! Condition is New, Transtar Autobody Products 4157 - Ultra Flex Seam Sealer - 11 oz Cartridge - Be, FREE SHIPPING | 99.7% |
![]() | $30.52 | Condition is New, ONLY 1 PIECE,TRANSTAR 4157 Ultra Flex Seam Sealer Beige, 11 oz Cartridge, shipping cost = $8.00 | 99.5% |
![]() | $43.69 | Top Pick! Condition is New, Transtar 4157 Ultra Flex Seam Sealer Beige, 11 Oz Cartridge, FREE SHIPPING | 99.4% |
![]() | $54.59 | Top Pick! Condition is New, Ultra Flex Seam Sealer Beige, 11 oz Cartridge 4157 TRANSTAR 845505001127 Seam, FREE SHIPPING | 99.6% |

The Transtar 4157 Ultra Flex Seam Sealer Cartridge is a professional-grade, high-performance sealing solution designed to repair and prevent leaks in various types of automotive applications. This cartridge is filled with a premium rubberized sealant that offers exceptional flexibility, adhering to surfaces with ease and forming a strong, watertight bond.
Measuring 11 inches long and with an overall diameter of 1.25 inches, this cartridge is suitable for sealing larger and more complex seams, such as those found on boat trailers, RVs, and other heavy-duty vehicles. The Ultra Flex Seam Sealer features a unique, threaded tip design that allows for easy application, controlling the flow of sealant as needed.
The Transtar 4157 cartridge is engineered using high-quality materials, ensuring excellent resistance to weathering, ozone, and UV rays. The sealant can be applied in temperatures ranging from 40 F to 120 F, making it a versatile solution for various climates and environments.
This cartridge is compatible with a wide range of application tools, including caulk guns, squeegees, and sealant applicators. Its large capacity allows for extensive sealing projects without the need for frequent cartridge changes, saving time and resources for users.
The Transtar 4157 Ultra Flex Seam Sealer Cartridge offers a quick and effective way to repair and prevent leaks in various automotive applications. Its advanced formula ensures a strong, flexible bond that stands up to the rigors of heavy use, making it an essential tool for professional mechanics, RV enthusiasts, and boat owners.
Transtar 4157 Ultra Flex Seam Sealer is a popular choice for automotive and industrial applications due to its high elasticity and ability to seal various types of seams, particularly those with movement. Here are some pros and cons of buying this cartridge:
Pros:1. High Elasticity: The Transtar 4157 Ultra Flex Seam Sealer has a high elasticity property, making it ideal for sealing moving parts and seams without cracking or shrinking.
2. Versatile: It can be used on various surfaces, including metal, rubber, and fiberglass.
3. Easy Application: The cartridge comes with a dispensing tip that makes it easy to apply the sealant in a continuous bead.
4. Dries Quickly: This sealant dries quickly, typically in 1-2 hours, which reduces downtime for repairs.
5. Weather Resistant: The Transtar 4157 Ultra Flex Seam Sealer is resistant to UV rays and extreme temperatures, making it suitable for outdoor applications.
Cons:1. Expensive: Compared to other sealants, the Transtar 4157 Ultra Flex Seam Sealer can be expensive.
2. Not Suitable for Large Areas: It is not recommended for sealing large areas due to the high cost and the time required for application.
3. Not Reusable: Once the cartridge is opened, the sealant cannot be reused.
4. Strong Odor: The sealant has a strong odor, which may be a concern for some users.
5. Requires Precise Application: The high elasticity property of the sealant requires precise application to prevent over-application or under-application.
In conclusion, the Transtar 4157 Ultra Flex Seam Sealer is an excellent choice for sealing moving parts and seams in automotive and industrial applications. Its high elasticity, versatility, and quick drying time make it a popular choice. However, its high cost, strong odor, and the need for precise application are drawbacks that should be considered before making a purchase.
If you require a sealant for large areas or have a limited budget, there may be other options available in the market that may be more suitable for your needs. However, if you require a high-performance sealant for sealing moving parts or seams, the Transtar 4157 Ultra Flex Seam Sealer is a recommended option.
Details:
Manufactured following strict OE standards to work like the original component. Engineered using the latest technology to ensure product lasts longer in service. Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle. Transtar 4157 ultra Flex seam sealer beige, 11 oz cartridge: part number: manufacturer: Transtar.
Designed specifically for trucks, trailers, and buses. Spec seam sealer, application for all types of painted surfaces, bare metal and primed composition 25 to 50% calcium carbonate, 5 20% toluene, 2.5 10% kaolin, magnetite, form pasty solid, specific gravity 1.3, applicable materials bare metal, application time 3 min, component1k/2k, container size oz 11, flash point 39 deg f, odor/saintlike aromatic solvents, printable y/n yes, spray able y/n no, trade mark ultra Flex, type cartridge. Made of high-quality components for durability, reliability, and performance. Application: make: model: sub model: year: engine: .
specifications specipaint:
- for models: Flex
- for years: 2011
- brand: Transtar
- mpn: 4157
- part type: Cartridge
payments specipaint:
- credit card: visa
- other
- wallet: paypal
shipping specipaint:
- transit: 4-7 days
- type: fixed
- class: standard
- service: standard
seller specipaint:
- city: los angeles, california
- rating: 98.8%
- # reviews: 58664
returns specipaint:
- paid by: seller
- time: 30 days
- policy: returns accepted
offer specipaint:
- availability: in stock
- in stock #: 5
- prices: $30.52–$54.59
- item condition: New
- best offers: true
- started: november 16, 2025
- options: ship-to-home
- sold #: 9
general specipaint:
- category: Auto Parts > Paints Supplies > Coatings > Specialty
Grouped With:
- 9194: ADDITIVE, Transtar





