Recognized for both its reliability and elegant appearance, the K4 Pacific was emblematic of the power and style of the mighty Pennsylvania Railroad in the early-to-mid 20th century. Developed primarily for passenger service, the K4 could frequently be found leading some of the most celebrated trains of the era, such as the Broadway Limited and the Spirit of St. Louis, while also proving more than capable when handling freight. In 1987, preserved K4 #1361 was designated as the state locomotive of Pennsylvania, adding a further dimension of historical significance to the class. The Bachmann Spectrum® HO scale K4 returns to our line, now featuring TCS WOWSound® DCC with CD-quality, 16-bit 44,100Hz audio, a Keep-Alive® device for smooth running through brief power interruptions or over dirty track, and Audio Assist® for easy programming without CVs. With new digital features and exceptional Spectrum® quality, the Bachmann K4 is ready to depart for express service to your layout.

Features include:
• DCC sound-equipped for sound, speed, direction, and lighting control.
• TCS WOWSound® true CD-quality audio in 16-bit 44,100Hz sound.
• Keep-Alive® device that keeps your engine running during power interruptions due to dirty track or loss of electrical contact.
• Voice-guided Audio Assist® programming tool for easy set-up of almost all decoder functionality.
• Load-based chuff intensity with Chuffinity™ technology.
• Dual-mode NMRA-compliant decoder.
• Precision motor.
• Separately applied metal handrails and uncoupling levers on locomotive and tender.
• Separately applied plastic details including whistle, bell, injectors, pump and piping.
• Detailed cab interior backhead and working cab deck deckplate.
• Painted crew figures.
• Pre-war version features slat pilot with classification lights, smokebox front-mounted headlight, top-mounted dynamo, and flat-mounted whistle details.
• All-metal chassis with die-cast trailing truck.
• See-through frame.
• Highly detailed painted bodies with precision graphics.
• Operating LED headlight with Rule 17 operation.
• Blackened metal side rods.
• Operating drive wheels with die-cast finescale spokes.
• Blackened metal wheels with RP25 contours.
• Magnetically operated E-Z Mate® Mark II couplers on the front and rear.
• Performs best on 22” radius curves or better.
• Product Measurements: L 11.5 in., W 1.5 in., H 2 in.