Walker Manifold Absolute Pressure Sensor (MAP) 03-04 GM 6.6L Duramax LB7
Is your truck experiencing poor throttle response, inconsistent fueling, or check engine codes related to intake pressure readings? The Walker Manifold Absolute Pressure Sensor restores accurate manifold pressure feedback to your engine’s computer so it can correctly calculate air‑to‑fuel ratios and maintain smooth performance. A failing MAP sensor can lead to rough idle, hesitation, reduced fuel economy, and unpredictable drivability. Still, this direct‑fit replacement brings reliability back to your engine control, helping your diesel run strong whether you’re cruising or towing.
Built to meet or exceed OEM specifications, this sensor features precision internal electronics and a rugged housing designed to withstand heat, vibration, and contamination in the intake system. Its OE‑style connector makes installation easy, delivering consistent, accurate readings that help your ECM optimize fueling and timing. Engineered and tested for long service life, it provides dependable performance mile after mile and helps clear pressure‑related fault codes for reliable operation.
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Product Information
Shipping & Returns
Shipping & Returns


Walker Manifold Absolute Pressure Sensor (MAP) 03-04 GM 6.6L Duramax LB7
Walker Manifold Absolute Pressure Sensor (MAP) 03-04 GM 6.6L Duramax LB7
Is your truck experiencing poor throttle response, inconsistent fueling, or check engine codes related to intake pressure readings? The Walker Manifold Absolute Pressure Sensor restores accurate manifold pressure feedback to your engine’s computer so it can correctly calculate air‑to‑fuel ratios and maintain smooth performance. A failing MAP sensor can lead to rough idle, hesitation, reduced fuel economy, and unpredictable drivability. Still, this direct‑fit replacement brings reliability back to your engine control, helping your diesel run strong whether you’re cruising or towing.
Built to meet or exceed OEM specifications, this sensor features precision internal electronics and a rugged housing designed to withstand heat, vibration, and contamination in the intake system. Its OE‑style connector makes installation easy, delivering consistent, accurate readings that help your ECM optimize fueling and timing. Engineered and tested for long service life, it provides dependable performance mile after mile and helps clear pressure‑related fault codes for reliable operation.
Original: $72.80
-70%$72.80
$21.84Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Is your truck experiencing poor throttle response, inconsistent fueling, or check engine codes related to intake pressure readings? The Walker Manifold Absolute Pressure Sensor restores accurate manifold pressure feedback to your engine’s computer so it can correctly calculate air‑to‑fuel ratios and maintain smooth performance. A failing MAP sensor can lead to rough idle, hesitation, reduced fuel economy, and unpredictable drivability. Still, this direct‑fit replacement brings reliability back to your engine control, helping your diesel run strong whether you’re cruising or towing.
Built to meet or exceed OEM specifications, this sensor features precision internal electronics and a rugged housing designed to withstand heat, vibration, and contamination in the intake system. Its OE‑style connector makes installation easy, delivering consistent, accurate readings that help your ECM optimize fueling and timing. Engineered and tested for long service life, it provides dependable performance mile after mile and helps clear pressure‑related fault codes for reliable operation.





















