Caterpillar Compatible Bellows

We are Manufacturer, Supplier, Exporter of Caterpillar Compatible Bellows with a manufacturing set up situated in Pune, Maharashtra, India.

Aftermarket Manifold Exhaust Bellows for Caterpillar 3500 Series Engines
Manufactured by Flexoresist Technologies Pvt. Ltd.
At Flexoresist Technologies Pvt. Ltd., we are a trusted name in precision-engineered aftermarket exhaust solutions. Our flagship product line includes high-performance manifold exhaust bellows specifically designed for compatibility with Caterpillar 3500 Series engines, including models 3508, 3512, and 3516. These aftermarket expansion joints offer superior durability, resistance to extreme temperatures, and a longer service life, making them the preferred choice for engine rebuilders, service providers, and fleet operators across the globe.

Compatible Caterpillar Engine Models
Our manifold exhaust expansion joints are engineered to provide a perfect fit and performance for the following Caterpillar engine models:
• Caterpillar 3508
• Caterpillar 3512
• Caterpillar 3516
• SR4B SR4 - Generator

These engines are commonly used in marine propulsion, power generation, oil & gas applications, and industrial operations, where reliability and thermal management are crucial.
Also we have developed exhaust bellow compatible to Caterpillar engine bellows part no. 5645440


Material Specifications & Build Quality
To withstand high-pressure and high-temperature conditions, our exhaust bellows are manufactured using top-grade materials:
• Bellows Material: High Nickel Alloy (Inconel), known for its superior heat resistance, corrosion resistance, and oxidation stability.
• Flanges: Precision-machined Stainless Steel (SS) components, offering mechanical strength and long-term corrosion resistance.
Each bellow is constructed using multi-ply layering technology, which enhances:
• Spring Flexibility: Enables better movement absorption and thermal expansion handling.
• Structural Integrity: Maintains performance under vibration, thermal cycling, and high exhaust gas flow. Engine Testing & Performance
Our Caterpillar replacement Bellows Assembly undergo extensive real-world engine testing to ensure they meet and exceed the performance parameters set by OEMs. Testing includes:
• Thermal shock resistance
• Pressure containment capability
• Fatigue resistance under continuous vibration
• Compatibility testing with manifold assemblies
Results have consistently shown that Flexoresist bellows deliver performance superior to OEM and other aftermarket alternatives.

Part Numbers and Market Availability
Our aftermarket manifold bellows are commonly identified by:
• OEM Replacement Part Number: 2224701
These bellows are fully compatible with the Caterpillar manifold assemblies that use this part reference, making them an ideal drop-in replacement for repair and maintenance tasks. Quality Control & Traceability
At Flexoresist, quality is a core value. Each product is manufactured under strict process controls and undergoes:
• Raw material inspection and verification
• Dimensional accuracy checks
• Welding integrity tests (using non-destructive techniques)
• Final performance testing carried out in practical conditions.
To support long-term reliability and maintenance tracking, complete documentation and batch traceability records are maintained for every component we produce.

Why Choose Flexoresist Technologies?
• Over a decade of experience in manufacturing precision-engineered engine components
• Use of advanced materials and manufacturing technologies
• n-house testing facilities for quality validation
• Custom solutions and rapid fulfilment for B2B partners and industrial clients Why Choose Flexoresist Technologies?
• Over a decade of experience in manufacturing precision-engineered engine components
• Use of advanced materials and manufacturing technologies
• In-house testing facilities for quality validation
• Custom solutions and rapid fulfilment for B2B partners and industrial clients

Upgrade your Caterpillar engine with our robust, high-performance aftermarket exhaust bellows—trusted by engine rebuilders and operators worldwide.