The Speedmaster PCE409.1001 is an air cleaner adapter designed to connect and transition between 5 1/8" and 2 5/8" diameter air intake components. This adapter serves as a precision coupling solution for engine air filtration systems, enabling proper fitment between differently-sized air cleaner housings and intake tubes on small-block engines and similar applications.
Constructed for durability and reliable performance, this adapter ensures secure connection between mismatched diameter components without compromising airflow or seal integrity. The engineered design maintains direct bolt-on compatibility, making it an essential replacement or upgrade part for builders, mechanics, and enthusiasts working with custom or original-equipment air intake configurations. Use it to restore proper air intake flow in applications where diameter transition is required.
Key Features & Benefits
- Precision Diameter Transition: Connects 5 1/8" to 2 5/8" air cleaner components for seamless fitment between different-sized parts.
- Engine Air Intake Solution: Engineered for air filtration systems requiring diameter adaptation on engine intake manifolds.
- Direct Bolt-On Design: Provides reliable coupling without modifications to existing air cleaner housings or intake tubes.
- Durable Construction: Built to maintain airflow integrity and secure fitment in high-performance and standard applications.
Specifications
| Brand | Speedmaster |
| Model/MPN | PCE409.1001 |
| Adapter Size (Large) | 5 1/8" |
| Adapter Size (Small) | 2 5/8" |
| Product Type | Air Cleaner Adapter |
Ideal Applications
- Engine air intake system upgrades and modifications
- Air cleaner housing diameter transition on custom builds
- Replacement adapter for small-block engine installations
- Restoration of proper airflow in air filtration assemblies