This page lists 16 electrical connector parts for the 2020 Freightliner Sprinter 2500, across 5 part types, covering all 3 engine options (2.0L L4 Turbocharged, 2.1L L4 DIESEL Turbocharged and 3.0L V6 DIESEL Turbocharged). Every part shows its brand, manufacturer part number and fitment notes.
The connector system on the 2020 Freightliner Sprinter 2500 supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. The largest groups are Trailer Connector (11 parts), A/C Refrigerant Pressure Switch Connector (2 parts) and Trailer Adapter Connector (1 part). The other 2 part types cover the remaining 2 parts.
The 2020 Freightliner Sprinter 2500 was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2020 Freightliner Sprinter 2500 electrical connector parts are CURT (13 parts), STANDARD MOTOR PRODUCTS (2 parts) and HOLSTEIN (1 part).
3 parts on this 2020 Freightliner Sprinter 2500 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including CURT 56415 (Trailer Connector) and CURT 55415 (Trailer Connector). Click any part number to see every vehicle that part fits.
A/C Refrigerant Pressure Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 2HAR0060 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | S2316 | 🇺🇸 US 🇨🇦 CA | Connector Shape: OvalNumber of Splice Connectors Included: 3 | View on Amazon |
This table covers the harness connectors at the A/C Refrigerant Pressure Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 A/C Refrigerant Pressure Switch Connector parts for the 2020 Freightliner Sprinter 2500 come from 2 brands — HOLSTEIN and STANDARD MOTOR PRODUCTS.
Listed part numbers: HOLSTEIN 2HAR0060 and STANDARD MOTOR PRODUCTS S2316.
Trailer Adapter Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 57101 | 🇺🇸 US 🇨🇦 CA | 7-Way Round RV To 4-Way Flat Adapter | View on Amazon |
This table covers the harness connectors at the Trailer Adapter. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Freightliner Sprinter 2500 — CURT 57101.
Trailer Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT Popular Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 56415 | 🇺🇸 US 🇨🇦 CA | Replacement 7-Way RV Blade OEM SocketTwist-In | View on Amazon |
| CURT Popular Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 55415 | 🇺🇸 US 🇨🇦 CA | Replacement 7-Way RV Blade OEM Socket | View on Amazon |
| CURT Popular Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 56229 | 🇺🇸 US 🇨🇦 CA | 7-Way USCAR Electrical ConnectorLength: 24 in. | View on Amazon |
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 55515 | 🇺🇸 US 🇨🇦 CA | Custom Wiring ConnectorOE 4-Way Flat | View on Amazon |
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 56515 | 🇺🇸 US 🇨🇦 CA | Custom Wiring Connector5-Way Flat | View on Amazon |
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 51535 | 🇺🇸 US 🇨🇦 CA | Trailer Brake Controller Harness | View on Amazon |
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 55774 | 🇺🇸 US 🇨🇦 CA | OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way | View on Amazon |
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 57015 | 🇺🇸 US 🇨🇦 CA | OEM Replacement Dual-Output 7 and 4 Way ConnectorPlugs Into USCAR Socket | View on Amazon |
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 55384 | 🇺🇸 US 🇨🇦 CA | Custom Wiring Connector4-Way Flat | View on Amazon |
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 57020 | 🇺🇸 US 🇨🇦 CA | OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged | View on Amazon |
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 56584 | 🇺🇸 US 🇨🇦 CA | Custom Wiring Harness5-Way Flat | View on Amazon |
This table covers the trailer-lighting connectors at the hitch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
11 Trailer Connector parts for the 2020 Freightliner Sprinter 2500 come from CURT. The "Popular" part is CURT 56415.
Trailer Extension Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | 56475 | 🇺🇸 US 🇨🇦 CA | Custom Wiring Harness Extension | View on Amazon |
This table covers the harness connectors at the Trailer Extension. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Freightliner Sprinter 2500 — CURT 56475.
Water Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged | S2832 | 🇺🇸 US 🇨🇦 CA | Auxiliary Water Pump | View on Amazon |
This table covers the harness connectors at the Water Pump. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2832.
Buying Electrical Connector Parts for a 2020 Freightliner Sprinter 2500
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- Match the engine first. Every electrical connector part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Trailer Connector and A/C Refrigerant Pressure Switch Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2020 Freightliner Sprinter 2500?
Our catalog currently lists 16 electrical connector parts for the 2020 Freightliner Sprinter 2500 across 5 subcategories and 3 brands, covering all 3 engine options (2.0L L4 Turbocharged, 2.1L L4 DIESEL Turbocharged and 3.0L V6 DIESEL Turbocharged). Each part is matched to the engine(s) it fits.
Do electrical connector parts differ between 2020 Freightliner Sprinter 2500 engines?
Yes. Every electrical connector part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical connector problems on a 2020 Freightliner Sprinter 2500?
Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2020 Freightliner Sprinter 2500 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2020 Freightliner Sprinter 2500?
First match the engine — each row shows which engine(s) the part fits. Then match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 Freightliner Sprinter 2500
Electrical Connector Parts for Other Freightliner Sprinter 2500 Years
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