5256656 Genuine Cummins Electronic Control Module Wiring Harness
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Description
Description: Electronic Control Module Wiring Harness
Condition: New
Brand: Cummins
Part Number: 5256656
Other OEM Part Numbers That Will Work: 4937395, 4941057, 4946723, 4981119, 5256656, 700371AT
Engines: 6C8.3, C GAS PLUS CM556, G8.3, G8.3 CM558, GTA8.3 CM558, ISC CM2150, ISC CM554, ISC CM850, ISC8.3 CM2250, ISC8.3 G CM2180 C101, ISL CM2150, ISL CM554, ISL CM850, ISL G CM2180, ISL8.9 CM2150 L110, ISL8.9 CM2880 L112, ISL9 CM2150 SN, ISL9 CM2250, ISL9 CM2350 L101, ISL9 CM2350 L111, ISLE4 CM850, L GAS PLUS CM556, L8.9, L8.9 L121, L8.9G CMOH2.0 L125B, L9 CM2350 L116B, L9 CM2350 L119B, L9 CM2350 L120C, L9 CM2350 L123B, L9.3 L105, L9.5 L117, L9N CM2380 L124B, QSC8.3 CM2250, QSC8.3 CM2880 C102, QSC8.3 CM554, QSC8.3 CM850(CM2850), QSL9 CM2250, QSL9 CM2250 L115, QSL9 CM2350 L102, QSL9 CM2350 L107, QSL9 CM2350 L118, QSL9 CM2350 L122, QSL9 CM554, QSL9 CM850(CM2850), QSL9 G CM558, QSL9 M CM2250 L106, QSL9.3 CM2880 L113
Shipment Characteristics
Length 18.4 In
Weight 7.3 Lbs
Width 18.6 In
Height 6.4 In
Verify Fitment
Send us your truck's details and a real parts expert will confirm this part fits — usually within business hours the same day.
Shipping and Refund
At Truck To Trailer Parts, timely and reliable delivery is essential to your business. Most orders ship from our North Carolina warehouse, and in-stock parts ordered by 7:30 PM ET Monday–Friday typically ship the same business day.
Processing & Dispatch
Estimated shipping times below are transit times and don't include processing. In-stock parts ordered by 7:30 PM ET Mon–Fri usually leave the same business day; items that need extra prep ship within 24–48 hours. We dispatch Monday through Saturday, excluding major U.S. holidays. Need an exact estimate? Contact us — and note that address changes after dispatch may carry carrier fees, payable by the customer.
Shipping Methods & Transit Times
| Method | Transit time | Notes |
|---|---|---|
| Small Package Saver | 3–7 business days | Ideal for items under 10 lbs; most FREE SHIPPING items |
| Ground | 1–6 business days | Typically UPS, occasionally FedEx |
| Second Day Air | 2–3 business days | Contact sales to arrange |
| Next Day Air | 1–2 business days | Order by 7:30 PM ET Mon–Fri for same-day dispatch |
| Canada | 1–6 business days | Varies with customs clearance |
| Large Package Rate | 3–5 business days | Residential delivery of larger items |
| Will Call – Pickup | No shipping charge | Pick up at our North Carolina warehouse by request |
Free Shipping
We offer Free Shipping on eligible items within the contiguous 48 United States. Outside this region, we'll provide an accurate quote on request. Some oversized or freight items may not qualify unless specifically noted.
Freight & Oversize Shipments
Oversized shipments travel via Freight/LTL, designed for commercially zoned properties — deliveries to non-commercial addresses may carry additional charges. When receiving freight, inspect the package for damage and note exceptions on the delivery receipt before signing. Extra services like a lift gate incur carrier fees payable by the customer.
Canada & International
For Canadian shipments, customs duties, taxes and brokerage fees are the customer's responsibility — please pay promptly to avoid delays. We ship internationally too: if your location isn't supported at checkout, contact us for a custom quote. International customers are responsible for duties, taxes and customs charges.
Questions About Shipping?
+1 (877) 290-1637 (Monday – Friday, 8:00 AM – 10:30 PM ET)
support@trucktotrailerparts.com
2230 Smokey Park Hwy, Suite 114, Candler, NC 28715



