Mars VN4510 MDB 4-Tube Coin Mechanism – 6-Pin Changer, Refurbished

Mars VN4510 MDB Coin Mechanism – Refurbished 4-Tube Changer

The Mars VN4510 MDB coin mechanism is a refurbished MEI (Mars Electronics International) Series 4000 coin changer built to give any modern vending machine fast, accurate coin acceptance and reliable change payout. It validates inserted coins, routes them to four dedicated payout tubes, and dispenses correct change back to the customer under the machine’s control — the core of a cash-accepting snack, soda, or combo unit. Because it speaks the industry-standard MDB (Multi-Drop Bus) protocol over a 6-pin connector, the VN4510 is a genuine plug-and-play replacement for the coin mech in virtually any MDB machine built in the last two decades.

This unit ships with four payout tubes configured for the U.S. coin set — nickel (5¢), dime (10¢), quarter (25¢), and dollar coin ($1) — giving it the balanced, high-capacity change management that busy accounts need. More tubes and higher tube capacity mean the machine holds more coins in reserve, so it keeps making change through peak traffic instead of tripping the dreaded “exact change only” light. For operators, that translates directly into fewer missed sales and fewer service calls.

Specifications

Key features

• Four-tube high-capacity payout — nickel, dime, quarter, and dollar-coin tubes for balanced change and less downtime.
• MDB plug-and-play — the 6-pin MDB connector lets it drop into any MDB-ready snack, soda, or combo machine without rewiring.
• Advanced coin validation — optical and inductive sensing identifies genuine coins and rejects slugs, washers, and foreign coins.
• Configurable option switches — set behaviors such as accepting or rejecting the $1 coin and routing coins to tubes vs. cashbox.
• Pairs with a bill validator — works alongside MEI VN2512 / VN2712 acceptors to run a full cash payment system on one MDB harness.

About Mars / MEI

The VN series is made by MEI — Mars Electronics International — one of the most recognized names in unattended payment hardware. MEI’s coin changers and bill validators became the de-facto standard in North American snack and soda machines, and the brand is now part of Crane Payment Innovations (CPI). That long production history is exactly why VN-series mechs are so easy to service: parts, tubes, and harnesses are widely available, and technicians everywhere already know how they behave.

Where this coin mech earns its keep

A coin changer is the workhorse behind cash sales, so the VN4510 fits any operator running MDB machines in offices, break rooms, schools, gyms, laundromats, apartment laundry rooms, car washes, warehouses, or convenience locations. It’s the right pick when you’re replacing a failed or worn changer, upgrading an older machine to reliable MDB payment, or keeping a fleet standardized on one proven mech so your spares and training stay simple. Because it holds coins across four tubes, it’s especially valuable at high-volume accounts where an under-stocked changer would otherwise flip to exact-change mode and stall sales.

Condition & what’s included

This is a refurbished VN4510: the unit is inspected, cleaned, and functionally tested before it ships, and it carries Finn Vending Sales’ 1-year limited warranty for refurbished parts (replacement parts, plus remote tech support for U.S. customers). Refurbished coin mechs are the smart, budget-friendly way to keep machines earning without paying new-part pricing — you get proven MEI hardware, verified working, ready to install.

Why buy from Finn Vending Sales

Finn Vending Sales ships free across the continental United States from our Hanover, Minnesota facility, with orders processed and prepared for shipment within 1–2 business days after payment confirmation. Every order is backed by a 30-day return window with free return shipping on approved returns, and you can pay by wire transfer at checkout or use secure checkout on any product for an invoiced order. First-time operators can also lean on our Vending Startup Program and location placement help.

Compare related machines

Buyers weighing this machine also look at these Finn Vending Sales listings:

• FLAT RATE REPAIRS – Mars VN4510 – NOT AN OUTRIGHT PURCHASE READ BELOW — $97
• MEI – Mars CF7512 5 Tube (DCC) Coin Mechanism 25-10-25-25-5 (Refurbished) — $202
• Conlux MCM5 MDB 5 Tube Coin Mechanism (Refurbished) — $204
• Conlux MCM5 ($1 Cassette ) MDB 5 Tube Coin Mechanism (Refurbished) — $220

Frequently asked questions

Which coins does the VN4510 make change for?

This unit’s four payout tubes are set for the U.S. coin set — 5¢ (nickel), 10¢ (dime), 25¢ (quarter), and the $1 coin — so it validates those coins and dispenses change from the tubes.

Will the VN4510 fit my vending machine?

If your machine uses the MDB (Multi-Drop Bus) standard with a 6-pin coin-mech connector, the VN4510 is a direct plug-in replacement. Nearly all snack, soda, and combo machines built since the early 2000s are MDB.

What power does it need?

It runs on the 24V MDB bus supplied by the vending machine’s control board through the standard 6-pin MDB harness — there’s no separate power supply to add.

Can I use a bill validator with it?

Yes. The VN4510 pairs with MDB bill acceptors such as the MEI VN2512 or VN2712, which chain onto the same MDB harness so coins and bills run through one payment system.

Does it reject slugs and fake coins?

Yes — the changer uses MEI’s coin validation sensing to identify genuine coins and reject slugs, washers, and foreign coins, protecting your cash box.

Is this new or refurbished?

This is a refurbished VN4510 — inspected, cleaned, and tested — and it’s covered by our 1-year refurbished-parts warranty.

Browse more vending machine parts & accessories or read the Buyers Guide to match the right coin mech and validator to your machines.