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ChampionPart #: 31
Champion 31 Spark Plug
110 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Copper Plus
Fitment: Chrysler, Dodge, Plymouth, Eagle, Utilimaster, and Asuna, Grand Voyager, Town & Country, Voyager, Caravan, Grand Caravan, Intrepid, Vision, Concorde, Step Van, GT, SE, Dynasty, Imperial, New Yorker, and Vista
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Not what you need? See all Spark Plug options
Reliable Spark Plug for Chrysler, Dodge, and Plymouth Vehicles
The Champion Copper Plus 31 spark plug is engineered to deliver consistent ignition performance for select Chrysler, Dodge, and Plymouth models. Designed with durable nickel electrodes and a precise pre-gap, this spark plug supports efficient combustion and engine reliability.
- Ground electrode core made of nickel for durability
- Non-removable nut electrical terminal type
- Nickel center electrode tip for stable spark
- Pre-gap size of 0.050 inches (1.28 mm) for optimal ignition
- Flat seat type with 0.75 inch reach and 14 mm thread diameter
- Resistor type spark plug to reduce electrical interference
- Hex size of 13/16 inch (20.65 mm) for standard installation tools
- Manufacturer heat range 14 suitable for specified vehicle applications
About the Champion Copper Plus Spark Plug Line
The Copper Plus line from Champion features spark plugs with copper cores designed to provide reliable conductivity and consistent performance. The 31 part number spark plug incorporates these copper core benefits along with nickel electrodes to balance durability and efficient ignition. This line is tailored for vehicles requiring a heat range of 14 and flat seat plugs, making it a compatible choice for many Chrysler, Dodge, and Plymouth models.
Technical Details and Compatibility
This Champion Copper Plus 31 spark plug is compatible with Chrysler, Dodge, and Plymouth vehicles including Caravan, Concorde, Dynasty, Grand Caravan, Grand Voyager, Imperial, Intrepid, New Yorker, Town & Country, and Voyager. The plug features a 0.551 inch (14 mm) thread diameter and a 0.75 inch reach, ensuring proper fitment in the specified engines. The resistor design helps minimize radio frequency interference, supporting vehicle electronics.
Common Applications and Problem Solving
- Restores proper ignition in Chrysler Caravan and Dodge Grand Caravan engines
- Addresses misfires and rough idling in Plymouth Voyager and Town & Country models
- Improves fuel efficiency and engine responsiveness in Chrysler Concorde and Intrepid
- Reduces spark plug fouling and wear in high-mileage vehicles
- Supports stable combustion in vehicles with flat seat spark plug requirements
Installation Notes and Tips
Ensure the spark plug gap is set to the specified 0.050 inch (1.28 mm) before installation. Use a 13/16 inch (20.65 mm) hex socket for proper torque application. The flat seat design requires careful seating to avoid damage to the cylinder head. Always follow manufacturer torque specifications and inspect the spark plug threads for cleanliness before installation.
Quality Assurance and Warranty
Champion Copper Plus spark plugs are manufactured to meet OEM specifications for fit and function. The use of nickel electrodes and copper core materials supports durability and consistent performance. While specific warranty details are not provided here, Champion products typically come with manufacturer-backed quality assurance to ensure reliability in compatible Chrysler, Dodge, and Plymouth vehicles.
| Brand | Champion |
|---|---|
| Part Number | 31 |
| Position | Copper Plus |
| Center Electrode Tip Material | Nickel |
| Classification | Champion Copper Plus |
| Electrical Terminal Type | Non-Removable Nut |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Hex Size | 0.813 |
| Hex Size | 20.650 |
| Hex Type | Hex |
| Insulator Height | 0.12 |
| Manufacturer Heat Range | 14 |
| Plug Type | RN14MC5 |
| Pre-Gap Size | 0.050 |
| Pre-Gap Size | 1.28 |
| Reach | 0.75 |
| Resistor Type | Yes |
| Seat Type | Flat |
| Thread Diameter | 0.551 |
| Thread Diameter | 14.000 |
This part fits 110 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2000 | Chrysler | Grand Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 2000 | Chrysler | Town & Country | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 2000 | Chrysler | Town & Country | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 2000 | Chrysler | Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 2000 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 2000 | Dodge | Grand Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 2000 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 2000 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 2000 | Plymouth | Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Chrysler | Town & Country | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Chrysler | Town & Country | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Dodge | Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Dodge | Grand Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Plymouth | Grand Voyager | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Plymouth | Voyager | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1999 | Plymouth | Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Chrysler | Town & Country | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Chrysler | Town & Country | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Dodge | Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Dodge | Grand Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Plymouth | Grand Voyager | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Plymouth | Voyager | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1998 | Plymouth | Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Chrysler | Intrepid | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Chrysler | Town & Country | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Chrysler | Town & Country | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Dodge | Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Dodge | Grand Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Dodge | Intrepid | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Plymouth | Grand Voyager | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Plymouth | Voyager | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1997 | Plymouth | Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Chrysler | Concorde | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Chrysler | Intrepid | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Chrysler | Town & Country | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Chrysler | Town & Country | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Dodge | Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Dodge | Grand Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Dodge | Intrepid | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Plymouth | Grand Voyager | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1996 | Plymouth | Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1995 | Chrysler | Concorde | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1995 | Chrysler | Intrepid | 3.3L | V6 | GAS | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus |
| 1995 | Chrysler | Town & Country | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1995 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1995 | Dodge | Grand Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1995 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1995 | Dodge | Intrepid | 3.3L | V6 | GAS | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus |
| 1995 | Plymouth | Grand Voyager | 3.8L | V6 | N/A | Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1995 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1995 | Plymouth | Voyager | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1994 | Chrysler | Concorde | 3.3L | V6 | GAS | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus |
| 1994 | Chrysler | Town & Country | 3.8L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1994 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1994 | Dodge | Grand Caravan | 3.8L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1994 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1994 | Dodge | Intrepid | 3.3L | V6 | GAS | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus |
| 1994 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1994 | Plymouth | Grand Voyager | 3.8L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1994 | Plymouth | Voyager | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Chrysler | Concorde | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Chrysler | Dynasty | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Chrysler | Imperial | 3.8L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Chrysler | Intrepid | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Chrysler | New Yorker | 3.8L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Chrysler | New Yorker | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Chrysler | Town & Country | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Dodge | Intrepid | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1993 | Plymouth | Voyager | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1992 | Chrysler | Dynasty | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1992 | Chrysler | Imperial | 3.8L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1992 | Chrysler | New Yorker | 3.8L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1992 | Chrysler | New Yorker | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1992 | Chrysler | Town & Country | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1992 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1992 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1992 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1992 | Plymouth | Voyager | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Chrysler | Dynasty | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Chrysler | Imperial | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Chrysler | Imperial | 3.8L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Chrysler | New Yorker | 3.8L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Chrysler | New Yorker | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Chrysler | Town & Country | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1991 | Plymouth | Voyager | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1990 | Chrysler | Dynasty | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1990 | Chrysler | Imperial | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1990 | Chrysler | New Yorker | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1990 | Chrysler | Town & Country | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus | |
| 1990 | Dodge | Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1990 | Dodge | Grand Caravan | 3.3L | V6 | N/A | Gap 0.050 (in); Actual OE Part; Plug Type Number RN14MC5; Copper Plus | |
| 1990 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | OE Type; Gap 0.050 (in); Plug Type Number RN14MC5; Copper Plus |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
1173015416054686083646RN14MC5W14EXRU15WR10LCV
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.