1998 Peterbilt 378 Fuel Water Separator Filter
Browse our online catalogue to find original replacement Fuel Water Separator Filters specifically designed to fit a 1998 Peterbilt 378.

1998 Peterbilt 378 Fuel Water Separator Filter
$29.46
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147);
Vehicle Fitment Notes:
Fuel/Water Separator OE Number : FS1000
Fuel/Water Separator OE Number : FS1000

1998 Peterbilt 378 Fuel Water Separator Filter
$29.46
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147); Engine Designation: M11; Engine Manufacturer: Cummins;
Engine Base: 10.8L 10834cc 661ci L6 (4.9213x5.7874; 125x147); Engine Designation: M11; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
Fleetguard : FS1000
Fleetguard : FS1000

1998 Peterbilt 378 Fuel Water Separator Filter
$29.46
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Vehicle Fitment Notes:
Fuel/Water Separator OE Number : FS1000
Fuel/Water Separator OE Number : FS1000

1998 Peterbilt 378 Fuel Water Separator Filter
$29.46
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Designation: N14; Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Designation: N14; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
Fleetguard : FS1000
Fleetguard : FS1000

1998 Peterbilt 378 Fuel Water Separator Filter
$19.80
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
Element OE Number : 23521528
Element OE Number : 23521528

1998 Peterbilt 378 Fuel Water Separator Filter
$19.80
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
Element OE Number : 23521528
Element OE Number : 23521528

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Vehicle Fitment Notes:
Spin-on See Product Guide for Variations of This Number. OE Number : FS1212
Spin-on See Product Guide for Variations of This Number. OE Number : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0); Engine Designation: C10; Engine Manufacturer: Caterpillar;
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0); Engine Designation: C10; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Spin-on See Product Guide for Variations of This Number. Fleetguard : FS1212
Spin-on See Product Guide for Variations of This Number. Fleetguard : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Vehicle Fitment Notes:
Spin-on See Product Guide for Variations of This Number. OE Number : FS1212
Spin-on See Product Guide for Variations of This Number. OE Number : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0); Engine Designation: C12; Engine Manufacturer: Caterpillar;
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0); Engine Designation: C12; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Spin-on See Product Guide for Variations of This Number. Fleetguard : FS1212
Spin-on See Product Guide for Variations of This Number. Fleetguard : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
Spin-on See Product Guide for Variations of This Number. OE Number : FS1212
Spin-on See Product Guide for Variations of This Number. OE Number : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
Spin-on See Product Guide for Variations of This Number. Fleetguard : FS1212
Spin-on See Product Guide for Variations of This Number. Fleetguard : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4);
Vehicle Fitment Notes:
Optional See Product Guide for Variations of This Number. OE Number : FS1212
Optional See Product Guide for Variations of This Number. OE Number : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Designation: N14; Engine Manufacturer: Cummins;
Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Engine Designation: N14; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
Optional See Product Guide for Variations of This Number. Fleetguard : FS1212
Optional See Product Guide for Variations of This Number. Fleetguard : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Vehicle Fitment Notes:
Fuel/Water Separator See Product Guide for Variations of This Number. OE Number : FS1212
Fuel/Water Separator See Product Guide for Variations of This Number. OE Number : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$25.60
10+ In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
See Product Guide for Variations of This Number. Fleetguard : FS1212
See Product Guide for Variations of This Number. Fleetguard : FS1212

1998 Peterbilt 378 Fuel Water Separator Filter
$72.52
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 15.0L 915ci6;
Engine Base: 15.0L 915ci6;
Vehicle Fitment Notes:
Fuel/Water Separator OE Number : 4010651
Fuel/Water Separator OE Number : 4010651

1998 Peterbilt 378 Fuel Water Separator Filter
$72.52
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 15.0L 915ci6; Engine Designation: Signature 600; Engine Manufacturer: Cummins;
Engine Base: 15.0L 915ci6; Engine Designation: Signature 600; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
OE Number : 4010651
OE Number : 4010651

1998 Peterbilt 378 Fuel Water Separator Filter
$72.55
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Vehicle Fitment Notes:
Element
Element

1998 Peterbilt 378 Fuel Water Separator Filter
$72.55
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0); Engine Designation: C10; Engine Manufacturer: Caterpillar;
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0); Engine Designation: C10; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Element
Element

1998 Peterbilt 378 Fuel Water Separator Filter
$72.55
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Vehicle Fitment Notes:
Element
Element

1998 Peterbilt 378 Fuel Water Separator Filter
$72.55
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0); Engine Designation: C12; Engine Manufacturer: Caterpillar;
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0); Engine Designation: C12; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Element
Element

1998 Peterbilt 378 Fuel Water Separator Filter
$69.14
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 15.0L 915ci6;
Engine Base: 15.0L 915ci6;
Vehicle Fitment Notes:
Fuel/Water Separator OE Number : 3331096
Fuel/Water Separator OE Number : 3331096

1998 Peterbilt 378 Fuel Water Separator Filter
$69.14
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 15.0L 915ci6; Engine Designation: Signature 600; Engine Manufacturer: Cummins;
Engine Base: 15.0L 915ci6; Engine Designation: Signature 600; Engine Manufacturer: Cummins;
Vehicle Fitment Notes:
OE Number : 3331096
OE Number : 3331096

1998 Peterbilt 378 Fuel Water Separator Filter
$26.85
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0);
Vehicle Fitment Notes:
Spin-on
Spin-on

1998 Peterbilt 378 Fuel Water Separator Filter
$26.85
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0); Engine Designation: C10; Engine Manufacturer: Caterpillar;
Engine Base: 10.3L 10309cc 629ci L6 (4.9213x5.5118; 125.0x140.0); Engine Designation: C10; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Spin-on
Spin-on

1998 Peterbilt 378 Fuel Water Separator Filter
$26.85
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0);
Vehicle Fitment Notes:
Spin-on
Spin-on

1998 Peterbilt 378 Fuel Water Separator Filter
$26.85
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0); Engine Designation: C12; Engine Manufacturer: Caterpillar;
Engine Base: 12.0L 732ci6 (5.10x5.90; 130.0x150.0); Engine Designation: C12; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Spin-on
Spin-on

1998 Peterbilt 378 Fuel Water Separator Filter
$26.85
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
Spin-on
Spin-on

1998 Peterbilt 378 Fuel Water Separator Filter
$26.85
Limited Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Made in USA
Fits: 1998 Peterbilt 378
Equipped With:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel;
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0); Engine Designation: Series 60; Engine Manufacturer: Detroit Diesel;
Vehicle Fitment Notes:
Spin-on
Spin-on