Vintage 1946 Neptune Muncie Outboard Motor with Stand – Model 15B2

A genuine piece of mid-century American engineering — this 1946 Neptune Model 15B2 outboard motor by Muncie Gear Works Inc. is a rare survivor in great shape, complete with its original stand. Whether you're a vintage boating enthusiast, antique collector, or maritime history buff, this is the kind of find that doesn't come around often.

Neptune outboards were produced by Muncie Gear Works in Muncie, Indiana, and were known for their reliable, well-engineered design. The Model 15B2 represented a refined generation of Neptune motors featuring synchronized gas and spark control, an improved water pump, and a recoil starter — all notable advancements for the era. This example presents beautifully and is a strong candidate for display, restoration, or as a centerpiece in a vintage boating or Americana collection.

At Street Dreams Texas — 27 years sourcing rare and authentic Americana — we hand-select pieces with genuine historical character. This motor is one of them. Serious inquiries only. Located in the Texas Hill Country (Fredericksburg/Kerrville area). Local pickup preferred; shipping available at buyer’s expense (very large/heavy item — will require freight).

Specifications

• Year: 1946
• Make/Model: Neptune Model 15B2 by Muncie Gear Works Inc.
• Horsepower: 2 HP @ 2800 RPM
• Carburetor: Tillotson AJ-4A
• Magneto: Wico Model 1768
• Cylinders: 1 — Bore & Stroke: 2-1/16" × 1½"
• Starter: Recoil
• Point Gap: 0.020
• Oil: ⅓ pt. SAE-30 per gallon
• Rope Plate: Diecast 6" Muncie
• Includes: Original motor stand
• Condition: Excellent vintage condition — well-maintained, display-ready