KNOW EXACTLY WHEN TO CHANGE YOUR FILTER. NOT BEFORE.
Contact a DAVCO Representative
Discuss diesel filtration system selection, specifications, and project requirements.
DAVCO's patented Seeing is Believing® clear cover gives operators real-time visibility into fuel health — eliminating guesswork and extending service intervals 2–3x.
“I have been using the DAVCO product for five years now and would strongly recommend it… We have seen a significant reduction in the amount of fuel related problems on all the buses that we added the DAVCO product to… The DAVCO system is now part of our specification build sheet for purchasing new buses.”
KEN MARTINEX, SERVICE MANAGER
SLC SCHOOL DISTRICT CTA
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✓ ISO 14001 for Environmental Management
✓ IATF 16949 for Quality Management
✓ Made in the USA Since 1976
— On-Highway & Off-Highway Fuel Filtration
— How It Works
Seeing is Believing® in 3 Steps.
Look Through the Clear Cover
Drivers glance at the clear cover at any stop — no disassembly, no tools required.
Real-time fuel health visibility built into every DAVCO unit. No tools, no guesswork.
Diagnose What You See
Spot water, air bubbles, discoloration, or gelling — all visible and actionable in seconds.
Act Only When Needed
Change the filter when it actually needs it. Extend service intervals 2–3x.
- ✓ Industry's first and only clear cover fuel water separator
- ✓ Extend service intervals 2–3x — don't waste unused filter media
- ✓ 5-minute filter changes — no spills, no repriming
- ✓ Class 5–8 on-highway through heavy off-highway applications
- ✓ 3.2 million systems built since 2004
The Results Behind DAVCO
Proven performance across on-highway fleets and off-highway operations for over 50 years.
— BY THE NUMBERS
2–3×
Extended service intervals
$20K+
Avg. preventable injector failure costs
3.2M
Filtration systems built since 2004
— SEEING IS BELIEVING®
The Only Filter That Shows You What's Inside.
DAVCO pioneered the industry's first and only clear cover fuel water separator. See fuel health, water levels, and contamination instantly — no tools, no guesswork.
Stop Wasting Filter Media
Know when NOT to change your filter. Cut unnecessary maintenance costs by 2–3x.
Visual Fuel Diagnostics
Instantly spot water contamination, air bubbles, discoloration, and gelling at any point during operation.
— ON HIGHWAY
Don’t Wait for a Dashboard Light.
Fuel filters sit on the engine — invisible to drivers on the road. By the time something surfaces, you're looking at a $20,000+ injector failure or a $1,000+ tow.
Fuel system issues go undetected until a dashboard light — and by then, the damage is already expensive.
- ●Seeing is Believing® Clear Cover — visually inspect fuel health at any stop
- ●5-minute filter changes — no spills, no repriming, back in operation immediately
- ●Cold weather heating –
12/24VDC pre-heaters, 120VAC overnight heaters, and fluid heat options - ●OEM-engineered fit — built to meet and exceed Class 5–8 engine specs
— OFF HIGHWAY
When You're Miles From the Nearest Service Bay.
Dust, debris, temperature swings, contaminated bulk fuel. When equipment fails in a mine, on a rig, or mid-harvest — there's no quick fix nearby.
High-pressure systems have tolerances down to 1.5 microns. One water slug can shut down a shift with no service bay for miles.
- ●NanoNet® synthetic media — 99%+ water separation, no chemicals needed
- ●Duplex continuous operation. Change filters while the engine keeps running
- ●Seeing is Believing® — diagnose fuel issues in the field instantly
- ●Scales from 60 GPH to 1,800 GPH for engines up to 95-liter displacement
— Applications
— WHY WE'RE DIFFERENT
Why DAVCO
The Industry's Only Clear Cover FWS
No other fuel water separator lets you see inside. DAVCO's patented Seeing is Believing® gives operators real-time fuel health data without additional equipment.
Engineered From OEM to Field
Built in direct collaboration with OEM teams — from Class 5–8 on-highway trucks to 95-liter off-highway engines at 1,800 GPH. One trusted platform, every application.
On-Demand Technical Support
Dedicated customer service and technical experts. Real answers, fast — whether a truck is stranded or a job site is down.
Ready to Discuss Your Filtration Requirements?
Speak with a DAVCO specialist about your fleet or operation. Here's what happens next:
— Ready to Talk?
- ✓ A DAVCO rep reaches out to you shortly
- ✓ We discuss your specific application and requirements
- ✓ We recommend the right solution and next steps
Three things that set DAVCO apart across every application and environment.
— Applications
Contact a DAVCO Representative
Speak with a rep about your application. We respond within 1 business day.
READY TO TALK ABOUT YOUR FLEET?
READY TO TALK ABOUT YOUR FLEET?
KNOW EXACTLY WHEN TO CHANGE YOUR FILTER. NOT BEFORE.
DAVCO's patented Seeing is Believing® clear cover gives operators real-time visibility into fuel health — eliminating guesswork and extending service intervals 2–3x.
- ✓ Industry's first and only clear cover fuel water separator
- ✓ Extend service intervals 2-3x – don’t
waste unused filter media - ✓ 5-minute filter changes — no spills, no repriming
- ✓ Class 5–8 on-highway through heavy off-highway applications
- ✓ 3.2 million systems built since 2004
— On-Highway & Off-Highway Fuel Filtration
✓ ISO 14001 for Environmental Management | ✓ IATF 16949 for Quality Management | ✓ Made in the USA Since 1976
Proven performance across on-highway fleets and off-highway operations for over 50 years.
— BY THE NUMBERS
The Results Behind DAVCO
2–3×
Extended service intervals
$20K+
Avg. preventable injector failure costs
3.2M
Filtration systems built since 2004
— ON HIGHWAY
Don’t Wait for a Dashboard
Light.
Fuel filters sit on the engine — invisible to drivers on the road. By the time something surfaces, you're looking at a $20,000+ injector failure or a $1,000+ tow.
Fuel system issues go undetected until a dashboard light — and by then, the damage is already expensive.
- ●Seeing is Believing® Clear Cover — visually inspect fuel health at any stop
- ●5-minute filter changes — no spills, no repriming, back in operation immediately
- ●Cold weather heating – 12/24VDC pre-heaters, 120VAC overnight heaters, and fluid heat options
- ●OEM-engineered fit — built to meet and exceed Class 5–8 engine specs
— Applications
READY TO TALK ABOUT YOUR FLEET?
— Applications
— OFF HIGHWAY
When You're Miles From the Nearest Service Bay.
Dust, debris, temperature swings, contaminated bulk fuel. When equipment fails in a mine, on a rig, or mid-harvest — there's no quick fix nearby.
- ●NanoNet® synthetic media — 99%+ water separation, no chemicals needed
- ●Duplex continuous operation. Change filters while the engine keeps running
- ●Seeing is Believing® — diagnose fuel issues in the field instantly
- ●Scales from 60 GPH to 1,800 GPH for engines up to 95-liter displacement
High-pressure systems have tolerances down to 1.5 microns. One water slug can shut down a shift with no service bay for miles.
READY TO TALK ABOUT YOUR FLEET?
— SEEING IS BELIEVING®
The Only Filter That Shows You What's Inside.
DAVCO pioneered the industry's first and only clear cover fuel water separator. See fuel health, water levels, and contamination instantly — no tools, no guesswork.
Visual Fuel Diagnostics
Instantly spot water contamination, air bubbles, discoloration, and gelling at any point during operation.
Stop Wasting Filter Media
Know when NOT to change your filter. Cut unnecessary maintenance costs by 2–3x.
— How It Works
Seeing is Believing® in 3 Steps.
Look Through the Clear Cover
Drivers glance at the clear cover at any stop — no disassembly, no tools required.
Real-time fuel health visibility built into every DAVCO unit. No tools, no guesswork.
Diagnose What You See
Spot water, air bubbles, discoloration, or gelling — all visible and actionable in seconds.
Act Only When Needed
Change the filter when it actually needs it. Extend service intervals 2–3x.
— WHY WE'RE DIFFERENT
Why DAVCO
The Industry's Only Clear Cover FWS
No other fuel water separator lets you see inside. DAVCO's patented Seeing is Believing® gives operators real-time fuel health data without additional equipment.
Engineered From OEM to Field
Built in direct collaboration with OEM teams — from Class 5–8 on-highway trucks to 95-liter off-highway engines at 1,800 GPH. One trusted platform, every application.
On-Demand Technical Support
Dedicated customer service and technical experts. Real answers, fast — whether a truck is stranded or a job site is down.
Three things that set DAVCO apart across every application and environment.
“I have been using the DAVCO product for five years now and would strongly recommend it… We have seen a significant reduction in the amount of fuel related problems on all the buses that we added the DAVCO product to… The DAVCO system is now part of our specification build sheet for purchasing new buses.”
KEN MARTINEX, SERVICE MANAGER
SLC SCHOOL DISTRICT CTA
Ready to Discuss Your Filtration Requirements?
Speak with a DAVCO specialist about your fleet or operation. Here's what happens next:
— Ready to Talk?
- ✓ A DAVCO rep reaches out to you shortly
- ✓ We discuss your specific application and requirements
- ✓ We recommend the right solution and next steps
Contact a DAVCO Representative
Speak with a rep about your application. We respond within 1 business day.