Champion Copper Plus Spark Plug 31

Description

The Champion Copper Plus Spark Plug 31 is engineered to provide reliable ignition performance and durable operation in compatible automotive applications. Featuring a copper core center electrode, this spark plug improves electrical conductivity and heat control to support consistent combustion and overall engine efficiency.

As part of the Champion Copper Plus line, the RN14MC5 spark plug offers dependable performance with strong corrosion resistance and accurate heat range operation. The copper core design helps maintain proper operating temperature, supporting longer service life and improved reliability.

Built to ISO and SAE standards, this spark plug provides proven replacement performance. It features a factory pre-gap of 0.050 in (1.28 mm) along with a flat seat design and crush washer for secure installation in compatible engines.

Features

• Copper core center electrode improves conductivity and heat control

• Champion Copper Plus design for dependable performance and durability

• Superior corrosion resistance for longer service life

• Built to ISO and SAE standards for proven performance

• Accurate heat range control supports efficient engine operation

• Pre-gapped design for easier installation

Specifications

• Brand: Champion

• Part Number: 31

• Plug Type: RN14MC5

• Classification: Champion Copper Plus

• Grade Type: Standard Replacement

• Part Description: Spark Plug

• Center Electrode Tip Material: Copper

• Center Electrode Design: Standard

• Ground Electrode Quantity: 1

• Ground Electrode Core Material: Nickel

• Ground Electrode Tip Material: Nickel

• Pre-Gap Size: 0.050 in / 1.28 mm

• Hex Size: 0.813 in / 20.650 mm

• Insulator Height: 0.12 in

• Manufacturer Heat Range: 14

• Seat Type: Flat

• Reach: 0.75 in

• Thread Diameter: 0.551 in / 14.000 mm

• Resistor Type: Yes

• Washer Included: Yes

• Washer Type: Crush

• Electrical Terminal Type: Non-Removable Nut

• Hex Type: Hex

• Indexed: No

• Prop 65 Warning: No

Fitment

Compatible with select vehicles including:

Asuna

• GT (1993)

• SE (1993)

Chrysler

• Concorde (1993–1996)

• Dynasty (1990–1993)

• Grand Voyager (2000)

• Imperial (1990–1993)

• Intrepid (1993–1997)

• New Yorker (1990–1993)

• Town & Country (1990–2000)

• Voyager (2000)

Dodge

• Caravan (1990–2000)

• Grand Caravan (1990–2000)

• Dynasty (1990–1993)

• Intrepid (1993–1997)

Eagle

• Vision (1993–1997)

• Vista (1988–1992)

Plymouth

• Grand Voyager (1990–1999)

• Voyager (1991–2000)

Utilimaster

• Step Van (1991–1994)

Always verify vehicle compatibility and engine specifications before installation.