Description
Product Overview
The Holley 108-4 5 in. Air Cleaner Gasket is engineered to deliver a precise, leak‑free seal for 5 1/8″ carburetor and fuel‑injection air horns. Constructed from robust, heat‑resistant plastic, the gasket resists deformation under engine bay temperatures while maintaining flexibility for a snug fit. Dimensions of the gasket complement the standard 5 in. air cleaner housing, and the package includes a single unit ready for immediate installation. With Holley’s reputation for quality, this gasket meets OEM specifications and ensures optimal airflow management for improved engine efficiency.
Usage
Designed for a wide range of gasoline and performance engines, the gasket is ideal for street‑driven vehicles, race‑prep builds, and restoration projects. Install the gasket when replacing a worn or damaged seal, during carburetor swaps, or when upgrading to a high‑flow air intake system. Its universal compatibility with all 5 1/8″ carburetor and fuel‑injection air horns makes it a go‑to part for hobbyists and professional technicians alike. 
Why Choose Us
Holley’s decades‑long experience in performance parts ensures that each gasket undergoes rigorous testing for durability and fit. The plastic material is selected for its resistance to oil, fuel, and heat, extending service life beyond typical rubber alternatives. Backed by a standard warranty, the gasket offers peace of mind and reliable performance, reducing the risk of air leaks that can cause rough idle or reduced power.
Key Features
- Precision‑molded plastic for a perfect seal
- Fits all 5 1/8″ carburetor and fuel‑injection air horns
- Heat‑resistant material maintains shape under engine conditions
- Easy, tool‑free installation saves time
- Holley brand warranty ensures quality and durability
FAQ
Is this gasket compatible with my specific carburetor model?
Yes, the Holley 108-4 gasket is designed to fit all standard 5 1/8″ carburetor and fuel‑injection air horns, covering the majority of popular aftermarket and OEM units.
Can I install the gasket myself without special tools?
Absolutely. The gasket is a snap‑fit design that requires only basic hand pressure to seat properly. No additional tools or adhesives are needed.
What material is the gasket made from and how does it perform under heat?
The gasket is made from a high‑grade, heat‑resistant plastic that resists deformation up to 200 °C, ensuring a consistent seal even in high‑performance engine environments.
Does the gasket come with a warranty?
Yes, Holley provides a standard warranty covering manufacturing defects, giving you confidence in the product’s longevity.
How do I know when the gasket needs replacement?
Signs of a failing gasket include air leaks, a rough idle, or a noticeable drop in engine performance. Inspect the gasket for cracks or deformation and replace it if any damage is observed.
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