Skill 3 Model Kit Mack R685ST Semi Tractor Truck 1/25 Scale Model
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The AMT Mack R685ST is a 1/25 scale plastic model kit of the classic Mack R-series semi tractor. It's a Skill 3 kit with over 280 parts, including a detailed Maxidyne diesel engine, tilting hood, and full cab interior. It suits experienced modelers who want a big rig with plenty of detail and optional parts. Compared to other truck kits, it stands out for its authentic Mack features and multiple build options, but it requires paint and cement and is not for beginners.
In stockSold by DeepDiscountReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
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Lowest price we've seen: $47.03 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Modelers appreciate the detail and options in this kit, especially the engine and cab. Some find the fit of certain parts needs extra work and the instructions could be clearer.
This is a 1/25 scale plastic model kit of the Mack R685ST semi tractor truck from AMT, at Skill Level 3. The parts are molded in white unless otherwise indicated. The kit has over 280 super-detailed parts scaled from the official manufacturer's specifications. The assembled model is 10.5 inches long.
The chassis has a 185" wheelbase with tandem axles. It includes a Maxidyne ENDT-675 6-cylinder turbocharged diesel engine and a Maxitorque TRL 1078 5-speed transmission. The hood and fender unit tilts, and the cab interior is fully detailed. A Holland sliding fifth wheel attaches to any AMT trailer.
The kit offers a choice of two fuel tank options and two exhaust options, under-frame or vertical stack. It includes a Donaldson air cleaner, a CB radio with twin antennas, and an optional roof-mounted air deflector. The decal sheet is expanded with new cab stripes and has authentic Matlack decals, plus bonus Bard & Son graphics. Paint and cement are required and not included.




