FS1251 3931062 Fuel Water Separator Filter Fit for Cummins Fleetguard Case 1840
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts 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
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Fuel Water Separator Filter for Cummins Fleetguard Case 1840
This fuel water separator filter, cross-referenced as FS1251 and 3931062, is designed to remove water and contaminants from diesel fuel, protecting the engine in your Case 1840. It is a reliable replacement option for Cummins Fleetguard systems in compatible applications.
Overview
This fuel water separator filter is a critical component for diesel engines, engineered to separate water and particulate matter from the fuel supply. Designed as a replacement for the FS1251 and 3931062 models, this fuel water separator filter for Cummins Fleetguard applications helps prevent injector damage and ensures efficient combustion. It is an ideal maintenance part for a Case 1840 and similar equipment, keeping the fuel system clean and reliable.
Built For Performance
- Highly effective water separation media to prevent corrosion and microbial growth
- High dirt-holding capacity for extended service intervals
- Compatible with standard diesel fuel systems
- Meets or exceeds OEM specifications for filtration efficiency
- Robust construction for durability in tough operating conditions
Fits These Machines
- for Case 1840
- for Cummins Fleetguard compatible engines
On-The-Job Use
- For use in the fuel line of diesel engines to protect injection systems
- Ideal for regular maintenance in agricultural and construction equipment
- Suitable for machines operating in environments with high moisture or contaminated fuel
Specs At A Glance
| Part Number(s) | FS1251, 3931062 |
| Type | Fuel Water Separator Filter |
Good To Know
Q: When should I change my fuel water separator filter? A: It is best to replace this filter during routine maintenance, usually every 250-500 hours of operation, or sooner if water is found in the separator bowl.
Q: What are signs that my fuel filter needs changing? A: Common signs include hard starting, rough idling, reduced engine power, and visible water or sediment in the filter bowl.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.