10 Electrical connector parts are listed for the 2018 Ram 4000, in 3 part types, covering the 5.7L V8 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2018 Ram 4000, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. All 10 listed parts are Blower Motor Control Module / Resistor Connector (8 parts), Intake Manifold Runner Control Valve / Solenoid Connector (1 part) and Washer Pump Connector (1 part).
Every part on this page is matched to the 5.7L V8 — the only engine offered in the 2018 Ram 4000.
The most listed brands for 2018 Ram 4000 electrical connector parts are STANDARD MOTOR PRODUCTS (4 parts), HOLSTEIN (3 parts) and FOUR SEASONS (2 parts), plus 1 more brand.
2 parts on this 2018 Ram 4000 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FOUR SEASONS 37263 (Blower Motor Control Module / Resistor Connector) and STANDARD MOTOR PRODUCTS S2117 (Blower Motor Control Module / Resistor Connector). Click any part number to see every vehicle that part fits.
Blower Motor Control Module / Resistor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Popular | 37263 | 🇲🇽 MX | 4 Terminal MaleRectangular Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | S2117 | 🇲🇽 MX | Connector Shape: Square | View on Amazon |
| FOUR SEASONS | 37258 | 🇲🇽 MX | 4 Terminal MaleSquare Connector | View on Amazon |
| GPD | 1713423 | 🇲🇽 MX | Blower Motor Resistor Pigtailwith 4 Terminal(s) | View on Amazon |
| HOLSTEIN | 2HAR0048 | 🇲🇽 MX | without Automatic Temperature Control | View on Amazon |
| HOLSTEIN | 2HAR0002 | 🇲🇽 MX | without Automatic Temp Control | View on Amazon |
| HOLSTEIN | 2HAR0052 | 🇲🇽 MX | with Automatic Temperature Control | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1573 | 🇲🇽 MX | Connector Shape: Rectangle | View on Amazon |
This table covers the connectors at the blower resistor or control module. 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.
8 Blower Motor Control Module / Resistor Connector parts for the 2018 Ram 4000 come from 4 brands — HOLSTEIN, FOUR SEASONS, STANDARD MOTOR PRODUCTS and 1 other brand. The "Popular" part is FOUR SEASONS 37263.
Listed part numbers: FOUR SEASONS 37263, STANDARD MOTOR PRODUCTS S2117 and FOUR SEASONS 37258, plus the other parts above.
Intake Manifold Runner Control Valve / Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S3045 | 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Intake Manifold Runner Control Valve / Solenoid. 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 S3045.
Washer Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2279 | 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Washer 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.
One part is listed for the 2018 Ram 4000 — STANDARD MOTOR PRODUCTS S2279.
Buying Electrical Connector Parts for a 2018 Ram 4000
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- Confirm you have the 5.7L V8 engine — every part on this page is matched to it.
- 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: Blower Motor Control Module / Resistor Connector and Intake Manifold Runner Control Valve / Solenoid Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2018 Ram 4000?
Our catalog currently lists 10 electrical connector parts for the 2018 Ram 4000 across 3 subcategories and 4 brands, covering the 5.7L V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical connector problems on a 2018 Ram 4000?
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 2018 Ram 4000 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 2018 Ram 4000?
Every part on this page is matched to the 5.7L V8 engine. 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 2018 Ram 4000
Electrical Connector Parts for Other Ram 4000 Years
Switch vehicle or jump to a subcategory
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.