Chrysler 9.9hp (2-Stroke) vs Mercury 9.8hp (2-Stroke)

Chrysler

9.9hp (2-Stroke)

1975 · 9.9 HP · 2-Stroke
VS
Mercury

9.8hp (2-Stroke)

1990 · 9.8 HP · 2-Stroke
Spec Chrysler 9.9hp (2-Stroke) Mercury 9.8hp (2-Stroke)
Power & Performance
Horsepower 9.9 HP 9.8 HP
Displacement 215 cc ← 179 cc
Configuration 2 Cyl / Inline 2 Cyl / Inline
Weights & Dimensions
Dry Weight 57 kg (126 lbs) 24 kg (53 lbs) ←
Mechanical & Electrical
Gear Ratio 2.0 2.0
Alternator 63 W ← 60 W
Fuel Delivery Carbureted Carbureted
Maintenance
Spark Plug Champion L4J NGK B8HS
Engine Oil TC-W3 2-Stroke TC-W3 2-Stroke

Technical Comparison Analysis

Power & Displacement

Comparing the Chrysler 9.9hp (2-Stroke) and Mercury 9.8hp (2-Stroke) shows a displacement difference of 36cc. The Chrysler features a larger 215cc block, which typically provides superior low-end torque and better hole-shot performance when pushing heavy loads or reaching planning speeds.

Weight & Rigging

In terms of transom weight, the Mercury is the lighter option at 24kg, offering a weight saving of 33kg over its competitor. This weight reduction is critical for smaller hulls or boats with limited transom capacity where every kilogram affects the center of gravity and drainage efficiency.

Electrical & Features

For boats equipped with modern electronics, sonar, and shallow-water anchors, the Chrysler offers the best charging performance with a 63W alternator. Choosing the right power-to-weight profile between these two 2-stroke engines depends heavily on your specific boat's displacement and daily power requirements.