Intake distributor throttle to idle control valve hose. Porsche 928 S4/GT/GTS 1987-95  ❭  92811063300

Hose for air ducting between idle speed adjuster and throttle body
OE Match intake distributor throttle to idle control valve hose for Porsche 928 S4, GT, and GTS models from 1987 to 1995. This replacement air ducting hose fits between the idle speed adjuster and throttle body, helping restore correct idle air control, intake sealing, and smooth engine running.

Fits:
Porsche 928 S4 1987 - 1991
Porsche 928 GT 1989 - 1991
Porsche 928 GTS 1992 - 1995

Diagram ref no 15

The hose routes controlled bypass air between the idle speed adjuster and throttle body as part of the idle air control system. A correctly sealed hose helps the engine control idle speed accurately, prevents unmetered air entry, and supports smooth running at idle and low throttle openings.

Functions
•  Replaces the intake distributor throttle to idle control valve hose
•  Fits between idle speed adjuster and throttle body
•  Routes idle control air correctly
•  Helps maintain stable idle speed
•  Helps prevent vacuum leaks and unmetered air entry
•  Supports smooth throttle response and reliable engine running
•  Suitable for intake service, idle control repair, or engine bay restoration
•  OE Match replacement for Porsche 928 S4, GT, and GTS intake system maintenance.

Why Replace This Part?
Idle control and intake air hoses can harden, crack, split, collapse, or become oil-soaked due to age, heat, engine bay conditions, and repeated temperature cycles. A damaged hose may cause rough idle, high or unstable idle speed, hesitation, vacuum leaks, intake air leaks, poor throttle response, or incorrect idle control valve operation. Replacing the hose helps restore proper intake sealing and idle control system function.

When to Replace This Part
•   Idle is rough, high, hunting, or unstable
•   Hose is cracked, brittle, split, collapsed, or leaking
•   Vacuum leak symptoms are present
•   Poor low-speed throttle response is noticed
•   Idle speed adjuster or throttle body service is being carried out
•   Intake air system maintenance is in progress
•   Vehicle is undergoing Porsche 928 engine bay restoration or refresh.

Where it fits on the car
This hose fits within the engine intake and idle air control system, running between the idle speed adjuster and throttle body on Porsche 928 S4, GT, and GTS models.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

92811063300

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