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1984 Mack RD686S Overview, Reviews, Ratings & Specs

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Eugene S | April 28, 2026
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The Good
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The Bad
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1984 Mack RD686S: Quick Overview

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1984 Mack RD686S Specifications

Vehicle Information
Year 1984
Make Mack
Model RD686S
Trim -
Style -
Type Truck
Category -
Manufacturing Details
Made In Canada
Manufacturing City OAKVILLE
Dimensions
Doors -
Curb Weight -
Gross Vehicle Weight Rating 330001 pounds
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 11L I6
Engine Size 11L
Engine Cylinders 6
Transmission -
Transmission Type -
Transmission Speeds -
Drivetrain -
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) -
Invoice Price -
Delivery Charges -

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What Problems Does the 1984 Mack RD686S Have?

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How long will the 1984 Mack RD686S last?

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What Technology & Safety Features are Included?

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What Colors Options are Available?

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1984 Mack RD686S Prices and Market Value

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1984 Mack RD686S Cost of Ownership

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1984 Mack RD686S Fuel Efficiency

Fuel Type Diesel
Fuel Capacity -
City Mileage -
Highway Mileage -

1984 Mack RD686S Warranty

Basic
Original warranty 0 months / No data
Estimated remaining Expired
Powertrain
Original warranty 0 months / No data
Estimated remaining Expired
Rust
Original warranty 0 months / No data
Estimated remaining Expired

1984 Mack RD686S Insurance

Insurance for a 1984 Mack RD686S is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.

How Does the 1984 Mack RD686S Compare to Other Truck?

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Final Verdict: Is the 1984 Mack RD686S a Good Truck?

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1984 Mack RD686S Owner Reviews

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Eugene S

Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.