Diesel Pro® 243

Applications and Features

Diesel Pro 243

The Diesel Pro 243 combines the features of fuel filtration, fuel/water separation and fuel filter preheating into a single, compact unit intended for medium duty diesel engines used in highway, construction, mobile or stationary applications.

  • Any diesel engine with fuel flow rates up to 60 gph
    • Class 4, 5, & 6 Trucks
    • Pickup Trucks
    • Refrigeration Units
    • Biodiesel Applications
Models and Options
  • Base Model - Unheated
  • Electric Pre-heater Options: 12 VDC 24 VDC or 120 VAC Overnight heater (NOTE: You can’t have both 12 VDC 24VDC and 120 VAC in this housing, only one heating option.)
  • Water-In-Fuel (WIF) sensor

The combination of the clear cover on top, the EleMax filter cartridge and the Statapore filter media ensures better water separation, longer filter life and provides instant visual diagnostics of fuel quality to protect engine system components.

Extended Filter Life

Change the filter only when the fuel reaches the black band on the filter wrap. As the fuel rises inside the filter cover, the vapor pressure relief valve on the cap equalizes pressure and allows more of the filter media to be used.

The color of the fuel and the filter media is not an indication of when to change the filter as there is still unused media under the filter wrap.

Fuel Heating

Electric pre-heaters warm the fuel once the ignition key is turned.

Diesel Pro 243 Specifications
Height Overall 13.00 in (330.2 mm)
Depth Overall 5.80 in (147.3 mm)
Width, max. 6.30 in (160.0 mm)
Mount Bracket Centers 5.25 in (133.4 mm)
Weight, dry 5.8 lb
Fuel In Connection 1/2"-14 NPTF
Fuel Out Connection 1/2"-14 NPTF
Filter Service Clearance Min 3.50 in (88.9)
Max Fuel Flow 60 gph
Electric Pre-heater 12VDC, 150W, 13A, 120VAC, 75W, .65A

Filters and Wrenches

DAVCO recommends using only EleMax filters.

Vapor relief valve and half wrap: The patented filter half-wrap and calibrated vapor pressure relief valve are integral parts of the filter assembly, ensuring maximum filter life

Filter Change Level: Change the EleMax filter element when the fuel level reaches the top of the filter

Micron Rating: Identifies the micron rating of the EleMax filter

StrataPore™ Media: Three layers of patented laminated melt blown media inherently strips emulsified water from the fuel and increases dirt holding capacity

micron Brand and P/N
7 micron EleMax Fleetguard Brand P/N FS19624
10 micron EleMax Fleetguard Brand P/N FS19727
25 micron EleMax Fleetguard Brand P/N FS19728
metal 5 in composite 5 in wrench
Metal wrench Composite wrench Heavy Duty wrench
3/8" thick. Use with a 3/8" socket wrench drive.
P/N 232007DAV P/N 382002 P/N 243030DAV

Tightening the collar with the wrench: Simultaneously apply downward pressure to the top of the clear cover until it is seated on the body of the Fuel Pro and hand tighten the collar until it no longer spins freely. Torque the cover assembly by rotating the collar clockwise three additional ribs using the collar wrench.

Model Number Identifier

DIESEL PRO Model Number Identifier
Click Here to download a pdf of the Model Number Identifier for the Diesel Pro 243.
Identifier Description
50 Unheated
51 Unheated with Water In Fuel Sensor
52 12VDC pre-heater
53 12VDC pre-heater with Water in Fuel Sensor
54 24VDC pre-heater
55 24VDC pre-heater with Water in Fuel Sensor
58 12VDC 155W pre-heater
59 12VDC 155W pre-heater and WIF
60 120VAC pre-heater
61 120VAC pre-heater and Water in Fuel Sensor

Suffix Part Numbers Designated to Identify Micron Filter Rating Used in Assembly

-07 7 Micron
-10 10 Micron
-25 25 Micron
OEM Suffix Identifier
Suffix OEM
CAR Carrier
DDC Detroit Diesel
FGD Cummins Filtration
FTL DTNA-Freightliner/Western Star
HINO Hino Motors
MAK Mack
MTU Rolls Royce
NAV Navistar
PAC Paccar-Kenworth/Peterbilt
TKG Thermo King
VOL Volvo
Example Part Number: 243953RLDAV-07 Breakdown
243 Diesel Pro 243
9 Most recent product update
53 12VDC pre-heater with Water in Fuel Sensor
RL Fuel IN right Fuel OUT Left
DAV Designated OEM that the product is sold to
-07 7 Micron Filter

Diesel Pro 243