Sierra 18-99299 99299 Fuel/Water Separator Diesel Kit W/ Bowl For Racor, 30 Micron
Sierra 18-99299 99299 Fuel/Water Separator Diesel Kit W/ Bowl For Racor, 30 Micron Product Description
Keep your diesel engine running smoothly on the water with this reliable fuel/water separator kit designed as a direct replacement for Racor systems. Engineered for marine environments, it tackles the common culprits of fuel contamination—water, dirt, and debris—that can lead to costly injector damage or engine failure. Whether you're cruising coastal waters or tackling offshore adventures, this 30-micron setup ensures clean fuel delivery while making maintenance straightforward and mess-free.
Why This Kit Stands Out for Boat Owners
- Full Assembly Ready to Install: Comes complete with the filter element, transparent collection bowl, and sturdy mounting bracket—no hunting for missing parts.
- Spin-On Simplicity: Swap out the element in seconds without tools, minimizing downtime during your boating season.
- Superior Water Separation: Precision filtration pulls out emulsified water that standard filters miss, matching OEM performance standards.
- Corrosion-Resistant Build: Epoxy-coated canister shrugs off saltwater exposure, extending the life of your fuel system.
- Leak-Proof Seals: Fresh gasket and O-ring included for a secure fit every time.
- Visual Monitoring: Crystal-clear bowl lets you spot water buildup at a glance.
- Effortless Draining: Hand-operated valve empties collected water without spilling a drop.
Real-World Advantages for Diesel Marine Engines
In harsh marine conditions, water in your fuel isn't just an inconvenience—it's a performance killer. This kit acts as your first line of defense, trapping microscopic water droplets and particulates down to 30 microns. Boat owners report fewer filter clogs, better fuel economy, and peace of mind knowing their high-revving diesels stay protected. It's especially valuable for inboard engines exposed to humid air or rough seas, where condensation builds up fast.
Unlike basic spin-on filters, the secondary bowl design allows proactive water removal, preventing sludge from reaching your injectors. Over time, this means less corrosion in fuel lines and pumps, potentially saving you from expensive overhauls.
How It Protects Your Fuel System
Diesel fuel picks up water easily through condensation or bad batches at the dock. As fuel flows through the 30-micron element, it undergoes three-stage separation: coalescing tiny water particles, gravity settling them into the bowl, and filtering out solids. Check the bowl regularly during pre-trip inspections, drain as needed, and replace the element when it darkens—typically every 200-500 hours of operation, depending on fuel quality.
Pro Tips for Long-Lasting Performance
- Inspect the clear bowl before every outing; drain if water level reaches halfway.
- Use biocide additives in humid climates to fight microbial growth in the bowl.
- Mount the unit vertically with the drain at the bottom for optimal separation.
- Prime the system after installation to bleed air and avoid dry starts.
- Keep spares onboard—quick changes beat being stranded.
Regular upkeep like this keeps your engine purring and avoids those dreaded "water in fuel" warning lights.
Frequently Asked Questions
What does a 30-micron rating mean for this fuel/water separator?
A 30-micron rating captures particles and water droplets 30 microns or larger, ideal as a primary filter for diesel marine engines. It balances flow rate with protection, removing emulsified water without restricting fuel delivery.
Is this kit a direct replacement for Racor 99299?
Yes, it's engineered to match the dimensions and performance of the original Racor 99299, including mounting and connections, for seamless swaps on compatible systems.
How do I know when to drain the water bowl?
The clear bowl makes it easy—drain when water accumulates to about half full. Use the hand-turn valve while the engine is off to safely remove it.
Can this handle saltwater exposure on boats?
Absolutely. The epoxy-coated canister and durable materials resist corrosion from marine environments, making it a tough choice for offshore use.
What's included in the complete kit?
Everything you need: spin-on filter element, collection bowl, mounting bracket, replacement gasket, and O-ring for a leak-free install.
How often should I replace the filter element?
Replace every 200-500 engine hours or sooner if the element darkens from contaminants. Always check during routine maintenance.
Does it prevent fuel injector damage?
By removing water and particulates early, it significantly reduces the risk of injector wear, corrosion, and failure common in diesel systems.
- Complete Kit Containing Filter, Collection Bowl and Bracket
- Fast and simple element changing with spin-on design
- Meets OEM specifications for removal of emulsified water
- Filter canister epoxy coated to prevent corrosion
- Includes replacement gasket and O-ring for maximum leak prevention
- Clear bowl to easily view water level
- Hand turn drain valve for easy water evacuation
Save $20 when you buy the Sierra 18-99299 99299 Fuel/Water Separator Diesel Kit W/ Bowl For Racor, 30 Micron for only $83 from NVN Marine! Same day shipping before 3pm.
Sierra 18-99299 99299 Fuel/Water Separator Diesel Kit W/ Bowl For Racor, 30 Micron Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Sierra Engine Parts |
| Weight: |
2.43 lb |
| Micron: |
30 |
| Replaces: |
120AP |
Sierra 18-99299 99299 Fuel/Water Separator Diesel Kit W/ Bowl For Racor, 30 Micron User Reviews
Sierra 18-99299 99299 Fuel/Water Separator Diesel Kit W/ Bowl For Racor, 30 Micron Shipping & Return
| Shipping Weight: |
2.43 lb |
|---|---|
| Box Sizes: |
4.00 (h) x 4.00 (w) x 9.00 (l) |
| Cubic Feet: |
144.0 |
| Returnable: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.



