CAT 151-5257 Seal Ring
Premium quality replacement seal ring for Caterpillar® diesel engines and heat exchangers.
Call Now for a Quote: 1 (206) 445-5230
We carry a wide assortment of replacement seals, gaskets, and rings for Caterpillar marine diesel engines. Call or refer to the Caterpillar Heat Exchanger Gasket chart and enter the model number you need in the mail form below. We do carry Start Gaskets and Port Rings.
CAT 151-5257 Seal Rings are built to meet or exceed OEM specifications, the CAT 151-5257 provides reliable sealing performance under extreme conditions. Designed with high-temperature, high-pressure applications in mind, this component ensures operational integrity in demanding industrial and marine environments.
Product Highlights
Part Number: CAT 151-5257
The CAT 151-5257 Seal Ring is engineered to form a secure, leak-proof seal between heat exchanger plates. Crafted with a durable NBR/Titanium and rubber composition, this seal ring maintains integrity under pressure and temperature fluctuations, preventing fluid leaks and cross-contamination between exchanger circuits.
Key Features
- Ensures uniform pressure distribution and effective sealing
- Provides a tight, leak-resistant barrier between heat exchanger plates
- Titanium collar bonded with GC8 to GC11 industrial cement for maximum adhesion and durability
Applications
This seal ring is commonly used in Caterpillar industrial and marine generator sets and engines, including models such as:
Generator Sets & Engines:
CAT 3156B, 3508B, 3512B, 3516B, 3516C, C15, C18, C32, G3408, G3408C, G3412, G3412C, G3516B
Marine Engines:
C15, C32
It serves a critical role in maintaining system pressure and sealing efficiency across a wide range of CAT diesel-powered machinery.
Specifications
| Attribute | Value |
|---|---|
| Part Number | 151-5257 |
| Alternate Numbers | CA1515257, CAT-1515257 |
| Seal Type | Ring Gasket |
| Material | NBR/Titanium, Rubber |
| Diameter | 3.11 in |
| Thickness | 0.17 in |
| Weight | 0.03 lbs |
| Cross Section | Not specified |
| Units of Measure | Inch |
Compatible Caterpillar® Engine Models
| Engine Model | Application |
|---|---|
| C15 | Industrial and Marine Power Systems |
| C32 | High-Capacity Marine/Industrial Engines |
About the CAT 151-5257 Seal Ring
The CAT 151-5257 is built to last. Its advanced material construction and Caterpillar-grade reliability make it ideal for harsh, high-performance environments. Whether used in marine propulsion systems or industrial generator sets, this seal ring offers:
- Optimal sealing performance
- Long service life
- Resistance to wear, temperature, and chemical exposure
Request a Quote
Use our quick form below or call 1-206-445-5230 to request a quote for your specific Alfa Laval plate heat exchanger model.
Disclaimer
All manufacturer names, part numbers, and product descriptions are provided for reference and identification purposes only. Caterpillar®, CAT®, and associated model names and numbers are registered trademarks of Caterpillar Inc.
MechPro is not an authorized dealer for Caterpillar Inc. and is not affiliated with the company. Our inventory is constantly changing and may include both genuine OEM parts and high-quality aftermarket replacements. Unless explicitly stated, we do not guarantee that a listed item is manufactured by the original equipment manufacturer.
Product images, diagrams, and specifications are for reference only and may not exactly match the item shipped. Customers should use original part numbers to verify compatibility and determine the most suitable replacement for their needs.