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Exact Part Supply
MPN index

OEM replacement parts · 28,500+ verified MPNs

OEM generator controllers, RV parts & equipment spares by part number

Type the MPN from the label, board, or manual. We match it to verified stock across 4 US warehouses — with fitment notes, specs, and secure PayPal checkout.

  • In-stock, verified fitment
  • Ground & LTL freight
  • 1-yr warranty · 30-day returns
28,480ready-to-ship parts
8live departments
21live collections
606+OEM brands live

Cohort 1 Priority Inventory

High-Demand OEM Replacement Parts

Top-ranking commercial control boards, cooling units, and equipment parts with verified stock and direct dispatch.
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No guessing

Find your exact part in 3 steps

Most wrong-part orders happen before the search box. Two minutes with the data plate eliminates them.

Read the data plate, not the description

Copy the model number plus the manufacturer part number (MPN). On generator controllers it is printed on the PCB silkscreen or a barcoded label (e.g. Kohler GM104661). On RV fridges, open the lower exterior control box — Norcold boards are stamped 628661 or 639593. On rooftop AC, the data plate sits under the shroud next to the BTU rating.

Search the number exactly as printed

Type it into the finder above — dashes, spaces, and capitalization are optional, so 0H6680D, 0H6680-D, and 0h6680d all land on the same Generac Nexus controller. If a part has multiple revisions, the product page lists which equipment lines each revision fits.

Verify fitment, then order

Check the fitment box (models, voltage, revision notes) against your equipment, then check out securely with PayPal, or request PO / wire terms for larger orders. In-stock orders are dispatched within 1-3 business days, and ground shipping over $199 ships free.

Already have a manufacturer number?

Go straight to the exact match.

Enter the identifier printed on the label, control board, manual, or casting. Punctuation and capitalization are optional.

Breaking down right now

Most-searched part numbers

The exact MPNs technicians and fleet managers look up most — each linked to its verified product page with fitment notes and live stock.

Can't find yours? Browse the full MPN index or ask a parts specialist — discontinued numbers like older Norcold and Dometic boards can often be crossed to a current replacement.

Verified in stock

Exact-fit parts, ready to ship

Image-verified catalog parts with live stock — each card links directly to its product page.

Looking for a specific number? Browse the full MPN index.

Genuine & Tier-1 stock

Top manufacturers we stock

Factory and certified replacement components from the brands behind the equipment — every listing shows exact MPN and brand parentage.

How we fulfil

Sourced across the US supply chain

We dispatch from our Central Point, Oregon facility and draw on manufacturer and distributor stock nationwide. Ground transit is 5-8 business days, with faster paid ground available on request.
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Power & electronics

Inspect and test

Generator controllers, circuit boards and RV electronics are checked against the manufacturer part number before dispatch.

Heavy equipment

Palletized freight

Skid steer attachments, tractor implements and kilns ship on pallets via LTL, with liftgate service arranged where needed.

Everyday parts

Parcel dispatch

Smaller components move by ground parcel. Free ground over $199 to the contiguous United States.

Nationwide reach

All 50 states

Alaska, Hawaii and APO/FPO addresses ship parcel. Ask us about forwarding for Canadian orders.

Ground Saver transit is 5-8 business days and free over $199. Priority Ground is 3-5 business days for $24.95. Heavy equipment and kiln freight runs 6-10 business days on a pallet. We do not offer same-day, next-day or guaranteed 2-day delivery.

Why shops order from Exact Part Supply

When a generator, kiln, or fleet vehicle is down, the MPN on the failed part is the fastest path back up. Our catalog is indexed by that number — with fitment notes, specs, and live stock — so you order once, correctly.

Guaranteed OEM fitmentEvery MPN maps to known equipment lines. Wrong-part returns stay near zero.
Honest multi-source pricingCompare verified offers and lead times instead of calling three distributors.
Freight that meets the jobGround and palletized freight, free ground over $199, tracking and RMA in your account.

Start with a generator control board, an RV rooftop air conditioner, a skid steer attachment, or kiln heating elements.

Crews we keep running

RV service centers and dealerships ordering fridge boards and AC parts; generator dealers and standby installers stocking controllers and sensors; excavation and landscaping contractors running skid steer attachments; ceramic studios and schools firing kilns; plus municipal shops on NET-30 terms — contact our team. One invoice, one tracking thread, one RMA process — built for purchase orders, not guest checkouts.

Before you order

Part-number questions, answered

The questions our parts desk hears every day — fitment, authenticity, shipping speed, and returns on electrical parts.
How do I find the part number on my equipment?

Read the data plate first: the model number plus the manufacturer part number (MPN). On control boards it is printed on the PCB silkscreen or a barcoded label; on RV fridges it is inside the lower exterior control box (for example Norcold 628661 or 639593); on rooftop air conditioners it is under the shroud on the unit data plate. Enter that number in the search above — dashes, spaces, and capitalization are optional.

Do I need exact dashes or spaces when searching, like 0H6680D?

No. Search ignores punctuation and case, so 0H6680D, 0H6680-D, and 0h6680d all resolve to the same Generac Nexus controller. If several revisions exist, the product page lists the models each revision fits so you can confirm before ordering.

Are these genuine OEM parts?

Yes. We catalog genuine manufacturer components and Tier-1 certified direct replacements sourced through authorized commercial distributors — Kohler, Generac, Dometic, Norcold, Suburban, Coleman-Mach, Lippert, Rhinox, Olympic Kilns, and others. Every listing shows the exact MPN, brand parentage, and known equipment lines.

How fast will my part arrive?

In-stock parcel orders usually leave the warehouse within 1 business day. Ground Saver transit is 5–8 business days and Priority Ground is 3–5 business days; palletized freight runs 6–10 business days. Ground Saver is free over $199. We do not offer same-day, next-day, or guaranteed 2-day delivery.

Can I return an electrical control board?

Yes, within 30 days, provided electronic boards remain in their original sealed anti-static bag and were never powered on — once power is applied a board cannot be resold as new. Wrong-part and defective returns ship back free with a prepaid label; customer-remorse returns carry a 15% bench-test restocking fee.

How do I pay for my order?

PayPal is the checkout method: tap the PayPal button after placing the order — the exact total and order reference come pre-filled, so you just log in and hit Send. Shops, fleets, and municipalities can request NET-30 purchase-order terms through a quote request.

My part is discontinued. Can you still help?

Often, yes. Send the obsolete MPN, equipment model, and serial through the contact form or a quote request. Our specialists cross-reference superseded numbers — for example older Norcold 621991 boards replaced by 628661 — and Dometic, Atwood, and Coleman legacy lines.

Do you ship to Canada, Alaska, or Hawaii?

Online checkout serves the 50 US states, with tax calculated by delivery state. Alaska and Hawaii ship parcel via USPS Priority or UPS 2nd Day Air. Canadian buyers can order through a US freight forwarder — email shipping@exactpartsupply.com for a cross-border freight quote.

Still stuck? Contact a parts specialist — include your equipment model, serial, and the number printed on the failed part and we will come back to you quickly.