Caterpillar 131-8821 Air Filter Cat 1318821 - Free Shipping
~Product~
Condition | New |
Model/Part # | 131-8821 (also 1318821) |
Manufacturer Part Number | 131-8821 |
Brand | Caterpillar |
Type | Radial Seal Air Filter |
Model | 131-8821 |
Media Material | Cellulose/Synthetic |
Style | Air Filter |
Filter Type | Radial Seal Engine Air Filter |
Manufacturer | CAT (Caterpillar) |
Country/Region of Manufacture | United States |
Efficiency Rating | Standard Efficiency |
Description
Caterpillar 131-8821 Air Filter Cat 1318821 - Free Shipping
The Caterpillar 131-8821 is a Radial Seal Air Filter, designed as a primary (outer) engine air filter. The "Radial Seal" design refers to how the filter seals within the air cleaner housing, providing a very effective and robust seal to prevent unfiltered air from bypassing the filter media. Its main purpose is to protect the engine's intake system from airborne contaminants such as dust, dirt, sand, and other debris. By ensuring that only clean air enters the engine, this filter helps to prevent premature wear on critical engine components (pistons, rings, cylinders, turbocharger), maintain optimal combustion, ensure fuel efficiency, and extend the overall life of the engine.
Highlights
- Radial Seal Design: Provides a tight, leak-free seal within the air cleaner housing, preventing dirty air bypass and ensuring maximum filtration efficiency. This is a key feature indicated by the box itself.
- High Filtration Efficiency: Designed to capture a high percentage of airborne particulate matter, even fine particles, to protect sensitive engine components.
- Durable Filter Media: Typically utilizes high-quality pleated filter paper (often a cellulose-based media, sometimes with synthetic blends) that offers a large surface area for dirt holding capacity and efficient filtration.
- Robust Construction: Features durable components like corrosion-resistant metal end caps or robust urethane end caps, and a strong outer screen to withstand pulsations and vibrations during operation.
- Optimized Airflow: Engineered to provide consistent and unrestricted airflow to the engine throughout its service life, which is crucial for maintaining engine performance and fuel economy.
- Extended Engine Life: By preventing abrasive contaminants from entering the engine, it significantly reduces wear on engine parts, leading to longer component and engine life.
- Genuine Cat Part (or equivalent aftermarket): Manufactured to Caterpillar's precise specifications for reliable performance and proper fit in compatible equipment.
- Primary Filter: This filter typically serves as the main filtration element, often complemented by a smaller inner safety filter in the air cleaner assembly.
- Type: Radial Seal Engine Air Filter - Primary (Outer)
- Efficiency Rating: Standard Efficiency (common for this type, though specific media blends can offer "Advanced Efficiency" benefits)
- Material:
- Filter Media: Pleated Cellulose or Cellulose/Synthetic Blend
- End Caps: Metal or Urethane
- Outer Screen: Perforated Metal
- Gasket/Seal: Integrated Radial Seal (typically urethane or rubber)
- Dimensions (Approximate for 131-8821):
- Outer Diameter (OD): Approx. 200 mm to 203 mm (7.87 to 8 inches), Inner Diameter (ID): Approx. 100 mm to 105 mm (3.94 to 4.13 inches), Length/Height: Approx. 330 mm to 335 mm (12.99 to 13.19 inches).
Application: The 131-8821 air filter is widely used in various Caterpillar machines across different product lines.
- Engines: Often found with C4.4, C6.6, C7, 3054C, 3056, 3066, and other compatible engines.
- Machine Types (Examples):
- Excavators: 311C, 312C, 314C, 315C, 318C, 319C, 320C, 320D, 321C, 323D, M325C, M325D.
- Wheel-Type Loaders: 924G, 924GZ, 928G, 930G, IT28G.
- Paving Compactors: CP-433C, CS-433C, CP-533C, CS-533C.
- Backhoe Loaders: 416D, 420D, 424D, 428D, 430D, 432D, 438D, 442D.
- Forestry Machines: 322C, 550, 560B, 570, 570B, 580, 580B.
- Motor Graders: 120H, 135H.
- Track-Type Loaders: 953C, 963C.
- Track-Type Tractors: D5N, D6N.
For precise fitment, always refer to your specific machine's operation and maintenance manual or a Caterpillar parts catalog using your equipment's serial number.