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Thermostat Kit For Volvo Penta 4.3 5.0 5.7 350 V6 V8 18 3677 3856961 383307
$43.99
Sale price
$43.99
Regular price
Available to Order
This Thermostat Kit is a marine engine cooling component compatible with Volvo Penta 4.3, 5.0, 5.7, 350 (5.7L) V6 and V8 engines and matches OEM Part# 18-3677, 3856961, 383307.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
This Thermostat Kit regulates engine temperature for Volvo Penta 4.3, 5.0, 5.7, and 350 V6/V8 marine engines. It ensures optimal cooling system performance by controlling coolant flow, preventing overheating, and maintaining efficient operation. Ideal for boat owners and marine mechanics needing a reliable replacement thermostat kit.
Key Features & Performance
- Direct replacement for Volvo Penta 4.3, 5.0, 5.7, and 350 engines
- Includes thermostat, gasket, and housing components for complete installation
- Precision-engineered to meet OEM specifications for reliable temperature regulation
- Corrosion-resistant materials suitable for marine environments
- Easy installation with included hardware
Fitment & Compatibility
- Volvo Penta 4.3L V6 engines (various years)
- Volvo Penta 5.0L V8 engines
- Volvo Penta 5.7L (350) V8 engines
- Compatible with models using OEM part numbers 18-3677, 3856961, 383307
Common Uses
- Replacement thermostat kit for marine engines in boats and yachts
- Engine cooling system repair and maintenance
- Restoring proper operating temperature in Volvo Penta powered vessels
- Overheating prevention and fuel efficiency improvement
Technical Specifications
- Part Number(s): 18-3677, 3856961, 383307
- Type: Thermostat Kit
- Material: Brass and high-temperature plastic
- Temperature Rating: OEM specified (typically 160°F or 180°F)
Frequently Asked Questions
Q: How do I know if this thermostat kit fits my Volvo Penta engine? A: Verify your engine model (4.3, 5.0, 5.7, 350) and check your current part number matches 18-3677, 3856961, or 383307.
Q: Does this kit include all necessary gaskets and seals? A: Yes, the kit includes the thermostat, housing gasket, and any required hardware for a complete replacement.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.