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(PVC) in Black (part number 9771) is a straight-style PVC silicone coupler designed to join two 4-inch OD intake tubes, ducting hoses, or air box connections in naturally aspirated applications. The 9771 provides a secure, air-tight connection with included stainless steel worm-gear hose clamps, making it a fast and reliable solution for custom cold-air intake builds, air box extensions, and intake ducting repairs. Note: this coupler is not rated for pressurized applications such as turbocharger or supercharger outlets.
Key Features
- The 9771 is sized for 4-inch inside diameter, which mates with standard 4in OD tubing used in most large-diameter cold-air intake kits and air duct assemblies.
- For boosted applications, use a silicone coupler rated for boost pressure.
- Yes, stainless steel worm-gear hose clamps are included with the Spectre 9771 for secure, leak-free installation.
- Both are 4-inch black PVC straight couplers, but they may differ in length or wall construction.
- PVC couplers work with aluminum, plastic, ABS, and steel tubes of the correct diameter.
- Insert both tube ends fully into the coupler, center the coupler on the joint, and tighten each worm-gear clamp evenly to 30-35 in-lb.
Fitment
| Application Type | Universal or dimensional component |
|---|---|
| Required Verification | Exact dimensions, material, connection, mounting interface, and companion components |
Specifications
| Brand | Spectre |
|---|---|
| Manufacturer Part Number | 9771 |
| Product Type | Air Intake Parts |
| Fitment Type | Universal or dimensional |
| Condition | New |
What's Included
One new Spectre air intake parts identified by manufacturer part number 9771. Hardware, clamps, hoses, filters, adapters, and service supplies are included only when stated for this exact product.
About Spectre
Spectre Performance develops air filters, intake systems, intake components, engine accessories, and related vehicle products for direct-fit and dimensional applications.
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Frequently Asked Questions
How do I confirm Spectre 9771 fits my setup?
Match the exact dimensions, material, connection size, mounting interface, and required companion components. Similar appearance alone does not confirm compatibility.
Does Spectre 9771 require emissions verification?
Yes. Check the current Spectre application and California restriction for this exact part number before purchase or installation.
What should be checked after installing Spectre 9771?
Verify mounting, clamps, fasteners, seals, hoses, sensors, wiring, and surrounding clearance as applicable. Inspect for leaks or contact before normal operation.
Installation Instructions
Follow the current Spectre instructions for manufacturer part number 9771. Confirm fitment, clean mating surfaces, secure every connection, preserve sensor orientation, check surrounding clearance, and verify emissions requirements before operation.
Spectre
Shop Spectre air intake systems, replacement air filters, intake tubing, couplers, clamps, engine accessories, and service products by exact manufacturer part number and verified application.Choosing the Correct Spectre Product Match the complete Spectre manufacturer part number Confirm the listed year, make, model, engine, and emissions notes for direct-fit products Verify diameter, material, bend, connection, sensor, and mounting details for universal components Review included filters, clamps, adapters, hardware, and current installation instructions Vehicle FitmentVehicle-specific products use collapsed year ranges and canonical year, make, model, and only legitimate required submodel data for Convermax filtering. Engine displacement, engine configuration, fuel type, drivetrain, and chassis codes remain application details rather than vehicle models.Related Spectre Products All Spectre products Cold air intakes Air filters Air intake components Frequently Asked QuestionsHow do I...
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