General Specifications
HP / kW
250 HP / 186.3 kW
Displacement
4400 cc (268.5 cu in.)
Cylinders
8 (V8 (60°))
WOT RPM
3700 - 4000
Weight
393 kg / 867 lbs
Drive & Lower Unit
Gear Ratio
1.46:1
Shaft Length
25", 30"
Electrical System
Alternator Output 1440 Watts
Starting System Electric
Technical Maintenance Toolkit
Verified service specifications for the Cox Marine CXO250 Diesel V8 (2024)
Lubrication
Engine Oil
15W-40 Synthetic Diesel
Oil Capacity 9.5 Liters
Gearcase Lube 1900 ml
Ignition System
Spark Plug
None (Diesel)
Firing Order 1-2-3-4
Performance Specs
Idle RPM 700 ± 50
WOT Range 3700-4000
Alternator 1440W
Standard Maintenance Intervals
20H Break-in Service
100H Annual Tune-up
300H Water Pump & Seals
Identification
The serial number for the Cox Marine CXO250 Diesel V8 is typically found on a plate located on the transom bracket.
Technical Toolkit
Maintenance Compatibility
These models share common service parts with the Cox Marine CXO250 Diesel V8:
Model Evolution
History of the Cox Marine 250HP series over the years:
Standalone production year.
Category Discovery
Reference Data
Information compiled from Cox Marine Marine factory service manuals and original sales literature published in 2024.