Diesel Pro 243


Product Features



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
  • 120 VAC Overnight heater
  • Water-In-Fuel (WIF) sensor

The combination of the clear cover on top, the EleMax filter cartridge and the Statapore filter media ensure better water separation, longer filter life and provide 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. Overnight heaters can be used to keep the fuel inside the Fuel Pro warm when the temperatures drop.

Diesel Pro 243 Specifications

Click here for more information in pdf format.

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


DAVCO recommends using only EleMax filters.

Patented 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

Service Parts and Wrenches

Diesel Pro Wrenches

Diesel Pro 230, 232, 233, 234, 242, 243. Shop Pro ST

OD Collar: 5 inches

Metal: P/N 232007DAV

metal 5 in

Composite: P/N 232002DAV

composite 5 in

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 Diesel 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.

Service Parts with DAVCO Part Numbers
Diesel Pro 243 Check Valve, P/N 240033DAV

DP 243 Check Valve

Diesel Pro 243 Collar, P/N 240002SDAV

243 collar

Diesel Pro 243 Cover Service Kit, P/N 243013SDAV, includes cover, and collar

Cover Service Kit

Diesel Pro 243, Drain Valve P/N 101332DAV


Diesel Pro 243 O-ring Service Kit, P/N 232000DAV , includes vent cap o-ring and collar o-ring


Diesel Pro 243 Spring, P/N 380056DAV


Diesel Pro Vent Cap Service Kit, P/N 240023DAV, includes vent cap and vent cap o-ring
vent cap

Model Number Identifier


243 Diesel Pro 243
245 Diesel Pro 245
9 Current Series
50 Unheated 
51 Unheated with WIF 
52 12VDC 195W pre-heater
53 12VDC 195W pre-heater and WIF 
54 24VDC 195W pre-heater 
55 24VDC 195W pre-heater and WIF 
58 12VDC 155W pre-heater
59 12VDC 155W pre-heater and WIF
60 120VAC 75W overnight heater
61 120VAC 75W overnight heater and WIF 
62 12VDC 195W pre-heater and 120VAC 75W overnight heater 
63 12VDC 195W pre-heater, 120VAC 75W overnight heater, and WIF 
64 24VDC 195W pre-heater and 120VAC 75W overnight heater
65 24VDC 195W pre-heater, 120VAC 75W overnight heater, and WIF 
68 12VDC 155W pre-heater and 120VAC 75W overnight heater
69 12VDC 155W pre-heater, 120VAC 75W overnight heater, and WIF
Fuel In/Fuel Out
RR Right in/Right out
RL Right in/Left out
LR Left in/Right out
LL Left in/Left out
OEM Suffix Identifier
CAR Carrier 
DDC Detroit Diesel 
FGD  Cummins Filtration 
HINO Hino Motors 
MAK Mack 
MTU Tognum America
NAV Navistar
PAC Paccar 
TKG Thermo King 
VOL Volvo 
Special Features
K Kit
M Metric
R Voss
Custom Features
  Has one or more  custom features
Micron Filter Rating
-7 7 Micron 
-10 10 Micron
-25 25 Micron
-50 50 Micron