1997-1998 Porsche 911/Boxster Radiator Air Duct / Guide 99657534103
Porsche Part #: 996-575-341-03 (99657534103)
Actual photo
The exact part you’ll receive — not a stock photo.
$17.49
Used
Donor1999 Porsche BOXSTER · 2.5L
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Genuine OEM Used
SKU: 471675
Donor Vehicle: 1999 Porsche BOXSTER · 2.5L
3 photos
$17.49
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This used genuine Porsche radiator air duct/guide (OEM 99657534103) channels airflow directly to the radiator, helping maintain consistent cooling under load. Also called a radiator air duct or air guide, it was originally fitted to 911 and Boxster models with 2.5L H6 naturally aspirated, 3.6L H6 turbocharged, or 3.6L H6 naturally aspirated engines. If the duct is cracked or missing, the radiator receives less ram air, which can lead to overheating, especially in stop-and-go traffic or spirited driving.
Specifications
| Fits Vehicle Model | 911, Boxster |
| Fits Vehicle Make | Porsche |
| Porsche Part No | 996-575-341-03 (99657534103) |
| Category | Core Support |
Compatible Vehicles
Fits 8 vehicle configurations across 1 make, 1997-1998.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 8 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 1998 | Porsche | 911 | Carrera 4 Convertible | 3.6L | |
| 1998 | Porsche | 911 | Carrera 4S Coupe | 3.6L | |
| 1998 | Porsche | 911 | Carrera 4 Coupe | 3.6L | |
| 1998 | Porsche | 911 | Carrera Convertible | 3.6L | |
| 1997 | Porsche | Boxster | Convertible | 2.5L | |
| 1998 | Porsche | Boxster | Convertible | 2.5L | |
| 1998 | Porsche | 911 | Carrera S Coupe | 3.6L | |
| 1998 | Porsche | 911 | Targa | 3.6L |