Skip to product information
Usually ships in 2–4 business days.
IAC IACV Idle Air Control Valve 3843750 For Volvo Penta 4.3L 5.0L 5.7L GI GXI
$22.99
Sale price
$22.99
Regular price
Available to Order
Product Type:
Not sure which part fits your equipment?
Our Northline Parts team can help you find the right replacement. Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT | Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Product Overview
The IAC IACV Idle Air Control Valve 3843750 For Volvo Penta 4.3L 5.0L 5.7L GI GXI is a critical engine management component designed to regulate idling rotational speed (RPM). By controlling the amount of air bypassing the throttle body plate, this valve ensures consistent engine performance and smooth idling transitions when your foot is off the accelerator. Built to withstand demanding marine environments, it acts as an essential replacement to rectify rough idling, engine stalling, or fluctuating RPM conditions across various Volvo Penta multi-port injection gasoline engines.
Key Features & Performance
- Electronically regulates engine idle speed by managing airflow bypass
- Prevents engine vibration and stalling during low-RPM operation
- Direct-fit replacement ensures efficient installation and reliable service
- Engineered to endure the harsh conditions of marine applications
Fitment & Compatibility
- for Volvo Penta 4.3L GI GXI
- for Volvo Penta 5.0L GI GXI
- for Volvo Penta 5.7L GI GXI
Common Uses
- Replacing a faulty or jammed marine engine idle air control valve
- Restoring stable engine RPM during low speed or docking maneuvers
- Resolving rough idle and hard starting issues in fuel-injected boats
Technical Specifications
- Product Type: Idle Air Control Valve
- Part Number(s): 3843750
- Brand Compatibility: for Volvo Penta
- Engine Compatibility: 4.3L, 5.0L, 5.7L
Frequently Asked Questions
Q: How can I check if this valve is compatible with my marine engine? A: You should verify that your existing part number matches reference number 3843750 and your engine belongs to the 4.3L, 5.0L, or 5.7L GI/GXI series before purchase.
Q: What are the primary symptoms of a failing idle air control valve? A: Common symptoms include an erratic or rough engine idle, unusually high RPMs, or frequent stalling when coming to a stop.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.