Sierra 18-0403
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Within 30 days
Sierra 18-0403 Product Description
Sierra 18-0403 Intake Gasket Kit - Professional Marine Engine Sealing Solution
Ensure optimal engine performance and prevent costly intake manifold leaks with the Sierra 18-0403 Intake Gasket Kit. This precision-engineered gasket set delivers OEM-quality sealing for MerCruiser stern drive engines, providing the reliable protection your marine engine demands.
Key Features & Benefits
- OEM Replacement Quality - Meets original equipment specifications for MerCruiser 27-8M0073380
- Premium Materials - Engineered with marine-grade materials for superior resistance to fuel, oil, and extreme temperatures
- Complete Gasket Set - Includes all necessary gaskets for comprehensive intake manifold sealing
- Easy Installation - Precision-cut gaskets ensure proper fitment and professional installation results
- Corrosion Resistant - Built to withstand harsh marine environments and prevent premature failure
- Cost-Effective Solution - Prevents expensive engine damage from intake manifold leaks
Technical Specifications
| Manufacturer: | Sierra Engine Parts |
| Part Number: | 18-0403 |
| UPC Code: | 808282200602 |
| Application: | MerCruiser Intake Manifold Gasket Kit |
| Material: | Marine-Grade Composite Gasket Material |
| Kit Contents: | Complete Intake Gasket Set |
Engine Compatibility
Direct Replacement For:
- MerCruiser 27-8M0073380
- MerCruiser 27-52571
- MerCruiser 27-61782
- MerCruiser 27-805722A1
- MerCruiser 27-812712
- Mallory 9-61217
Compatible Engine Systems: MerCruiser Stern Drives, OMC Stern Drives, Volvo Penta Applications
Installation & Maintenance
Professional Installation Recommended
- Clean all mating surfaces thoroughly before installation
- Inspect intake manifold for warpage or damage
- Apply torque specifications per manufacturer guidelines
- Use marine-grade sealant where specified in service manual
- Check for proper sealing after installation and initial engine operation
Why Choose Sierra Marine Parts?
Sierra Marine has been the trusted choice of marine professionals for over 40 years. Their intake gasket kits are manufactured to meet or exceed OEM specifications, ensuring reliable performance in demanding marine environments. Each gasket is precision-cut and tested for proper fitment and durability.
Signs You Need This Gasket Kit
- Vacuum leaks at intake manifold connections
- Rough idling or poor engine performance
- Fuel mixture inconsistencies
- Visible gasket deterioration during maintenance
- Engine overheating from air leaks
Frequently Asked Questions
Is this gasket kit compatible with my MerCruiser engine?
This Sierra 18-0403 kit replaces MerCruiser part numbers 27-8M0073380, 27-52571, 27-61782, 27-805722A1, and 27-812712. Verify your engine's part number to ensure compatibility.
How often should intake gaskets be replaced?
Replace intake gaskets when performing major engine service, if leaks are detected, or as recommended in your engine's maintenance schedule. Typically every 5-7 years or during manifold removal.
Can I install this gasket kit myself?
While experienced mechanics can perform this installation, professional installation is recommended due to the precision required for proper torque specifications and sealing procedures.
What's included in this gasket kit?
The kit includes all necessary gaskets for complete intake manifold sealing. Specific contents may vary by application - consult your service manual for detailed specifications.
How do I prevent future gasket failure?
Regular maintenance, proper torque specifications, quality fuel, and avoiding overheating will extend gasket life. Replace coolant regularly to prevent corrosive damage.
Warranty & Support
Sierra Marine Parts are backed by manufacturer warranty against defects in materials and workmanship. Professional installation and proper maintenance ensure optimal performance and longevity.
Buy with the best price Sierra 18-0403 for only $80 from NVN Marine! Same day shipping before 3pm.
Sierra 18-0403 Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Sierra Engine Parts |
| Weight: |
0.61 lb |
Sierra 18-0403 User Reviews
Sierra 18-0403 Shipping & Return
| Shipping Weight: |
0.61 lb |
|---|---|
| Box Sizes: |
0.00 (h) x 7.00 (w) x 22.00 (l) |
| Cubic Feet: |
0.0 |
| Returnable: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.