M-58 Motor for Thermaco Big Dipper Grease Traps
OEM M-58 / THAM-58 Motor, Big Dipper Parts, and Repair

M-58 Grease Trap Motor

$249.95

M-58 Motor OEM Replacement
Thermaco Big Dipper Grease Trap / Interceptors.
115vac 60 cycle.
Our price for a limited time: $249.95!

 

 

LOWEST PRICE FOR M-58 ON THE INTERNET!
 
 

 

$249.95 USD New

 

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The M-58 motor is the OEM replacement motor used in many Thermaco Big Dipper automatic grease traps and grease interceptors. Big Used Dipper supplies M-58 / THAM-58 motors, timers, safety switches, rebuild kits, thermostats, complete head assemblies, and repair support for units across the 2000 through 40000 series. We offer fast shipping on qualifying parts orders to the lower 48 states and a convenient mail-in repair program for customers who would rather have their Big Dipper repaired by our shop. Call 252-315-4770 for M-58 motor compatibility help, replacement parts, or repair service.

A grease interceptor is the unsung hero of your kitchen — quietly separating fats, oils, and grease so they never reach your drains or the city sewer. But when a component inside a Thermaco Big Dipper interceptor fails, that quiet hero goes silent fast. At Big Used Dipper, we specialize in genuine OEM replacement parts for Thermaco Big Dipper grease interceptors — one of the most trusted names in the industry — so you can get yours back to doing its job.

Understanding Grease Interceptor Components

A Big Dipper automatic grease interceptor isn’t just a tank. It’s a working system, and a handful of key components keep it running:

• The motor (M58 / THAM58) — drives the skimming mechanism that pulls grease off the surface.
• The timer (ETC1) — controls the daily skimming cycle so grease removal happens automatically, on schedule.
• The safety switch (SS7) — protects the unit and keeps operation safe.
• The heater and thermostat — keep grease warm and flowing so it separates properly instead of hardening.
• The head assembly — the top of the unit that houses the working parts.

When one of these goes, the whole interceptor’s performance suffers. Knowing the pieces makes it far easier to spot what needs replacing.

Why Thermaco Big Dipper Interceptor Parts are Crucial

Thermaco Big Dipper is a leading brand in automatic grease interception — and these units are built to precise specifications. That precision is exactly why the right parts matter so much.

 
Generic or “close enough” components can throw off the whole system: incomplete skimming, poor grease separation, inconsistent timing, and safety concerns. Worse, a mismatched part often fails again quickly, leaving you with the same problem and a second bill.

 
Genuine OEM Big Dipper interceptor parts are engineered to Thermaco’s exact standards, so they fit right, perform right, and keep your interceptor compliant with the greasemanagement expectations your local codes demand.

 

Essential Replacement Parts for Big Dipper Grease Interceptors

Here are the core grease interceptor parts we stock for Thermaco Big Dipper units:

• M58 / THAM58 Motor: Brand new OEM replacement motor for 120vac Big Dipper units, series 5000 and up. The heart of your skimming system.
• ETC1 Timer: OEM 24hour timer for 120vac units, series 5000 and up. Keeps the skimming cycle running like clockwork.
• SS7 Safety Switch OEM safety switch for 120vac units, series 5000 and up. Small part, essential job.
• Rebuild Kit: The complete rewire package: M58 motor, ETC1 timer, SS7 safety switch, and wiring harness, all in one box. (Heater and thermostat sold separately, subject to availability.)
• Thermostat: Heater thermostat for Big Dipper models, 8000 series through 16000 series.
• Complete Head Assembly: An allnew top head assembly that fits W200IS, W250IS, W300IS, and W350IS, series 6000 through 21000. Set it on your existing tank, plug it in, and you’re back in business.

 

For current pricing, see our [Thermaco Big Dipper Replacement Parts page](https://www.biguseddipper.com/bigdipperparts/). Don’t see your part? Call us — we support more parts than the page shows.

 

Troubleshooting Common Interceptor Part Failures

Not sure which part is the culprit? A few common symptoms point the way:

Grease isn’t being skimmed — often a wornout motor or a timer that isn’t triggering the cycle.
The unit won’t run at all — check the safety switch and the timer first.
Grease is hardening or not separating — usually a heater or thermostat issue.
Multiple electrical gremlins at once — a full rebuild kit is often the smartest, most costeffective fix.

When in doubt, don’t guess your way through it. Call 2523154770 and we’ll help you pinpoint the failed component before you order.

Our Expertise in Grease Interceptor Repair

We don’t just sell parts — we know these units. Big Used Dipper focuses on Thermaco Big Dipper interceptors day in and day out, across the 2000 through 40000 series, and that focus means real answers when you call.

Prefer to hand the whole job off? Our convenient mailin repair program lets you send us your component; our shop repairs it and ships it back ready to run. It’s the nohassle way to restore your interceptor without sourcing and installing parts yourself.

Whether you order the part or mail us the unit, you get genuine OEM quality and expert support behind it.

Need help identifying a part or ready to order? Call 2523154770 — free expedited shipping to the lower 48.

When you need a reliable M-58 motor for a Thermaco Big Dipper grease trap, OEM replacement parts, or repair service, Big Used Dipper is ready to help.

View a Short Video of How Easy
it is to Change the M-58 Motor in your Grease Trap…

 

This motor fits most all 115vac models including…
W-200-IS, W-250-IS, W-300-IS, W-350-IS, W-500-IS

From the following series…
5000 series, 6000 series, 8000 series, 14000 series, 21000 series, 40,000 series.