General Specifications
HP / kW
500 HP / 372.5 kW
Displacement
4572 cc (279.0 cu in.)
Cylinders
8 (V8 64° Supercharged)
WOT RPM
6000 - 6600
Weight
329 kg / 725 lbs
Drive & Lower Unit
Gear Ratio
1.60:1
Shaft Length
20", 25", 30"
Electrical System
Alternator Output 1449 Watts
Starting System Electric
Technical Maintenance Toolkit
Verified service specifications for the Mercury 500R Racing V8 (2024)
Lubrication
Engine Oil
Mercury Racing 25W-50
Oil Capacity 6.6 Liters
Gearcase Lube 1800 ml
Ignition System
Spark Plug
NGK LKAR7C-9
Gap Setting 0.032"
Firing Order 1-2-3-4
Performance Specs
Idle RPM 700 ± 50
WOT Range 6000-6600
Alternator 1449W
Standard Maintenance Intervals
20H Break-in Service
100H Annual Tune-up
300H Water Pump & Seals
Identification
The serial number for the Mercury 500R Racing V8 is typically found on a plate located on the transom bracket.
Technical Toolkit
Maintenance Compatibility
These models share common service parts with the Mercury 500R Racing V8:
Model Evolution
History of the Mercury 500HP series over the years:
Standalone production year.
Category Discovery
Reference Data
Information compiled from Mercury Marine factory service manuals and original sales literature published in 2024.