Sixity Auto Champion Copper Plus spark plugs — 8pc for Dodge Ram 1500 (1997–2003), RC12LC4 pre-gapped .040 OE-fit

These are eight genuine Champion Copper Plus spark plugs pre-gapped to 0.040" engineered to fit Dodge Ram 1500 V8 engines from 1997 through 2003 as an OE-style replacement.

Keep your Ram 1500 firing reliably with a full set of Champion Copper Plus plugs designed to match OE specifications. Each kit contains eight RC12LC4-type plugs with a .040 inch gap, compatible with 5.2L and 5.9L V8 model years listed. Champion supplies long-established ignition components used by OEMs and in racing, and this set is intended as a direct-fit replacement for engines calling for this plug type.

Will these plugs fit my Dodge Ram 1500 from 1997–2003?

Yes — this 8-piece set is specified for Dodge Ram 1500 models from 1997 through 2003 that use the RC12LC4 plug type. They are supplied with a factory gap of 0.040" and match OE form, fit, and function for the listed V8 engines.

• Compatible years: 1997, 1998, 1999, 2000, 2001, 2002, 2003
• Engine fits: 5.2L V8 (1997–2001) and 5.9L V8 (1998–2003 where applicable)
• Plug type: RC12LC4; gap: 0.040 inch (pre-gapped)
• Sold as an 8-piece set to replace all cylinders at once

How do Champion Copper Plus plugs compare to other replacement plugs?

Champion Copper Plus plugs use durable materials and OE-inspired construction to provide consistent ignition characteristics close to original equipment. They blend time-proven copper core design with manufacturing standards used by Champion for both aftermarket and OEM supply, offering reliable starts and predictable spark delivery.

• Genuine Champion part — manufactured to industry OE standards
• Copper-core construction for stable thermal and electrical behavior
• Designed for long service life relative to basic economy plugs
• Engineered for direct-fit replacement without modification

What should I know before installing these plugs?

Confirm your engine’s required plug type and gap specification before installing. Although these plugs come pre-gapped to 0.040", always verify and adjust if needed to account for torque and heat-range recommendations from your vehicle manual. Use a proper torque wrench and boot dielectric grease as recommended for safe installation and reliable sealing.

• Double-check vehicle engine code and plug type (RC12LC4)
• Verify the 0.040" gap with a feeler gauge; re-gap only if necessary
• Tighten to Dodge-specified torque to avoid thread damage
• Replace all eight plugs at once for balanced performance

How will replacing all eight plugs affect my truck?

Installing a matched set ensures even ignition across all cylinders, which helps maintain smooth idle, consistent throttle response, and predictable starting behavior. Fresh plugs remove carbon buildup issues that can cause misfires and uneven combustion, restoring the intended spark characteristics for your V8.

• Restores consistent cylinder ignition timing
• Reduces misfire risk caused by worn electrodes or deposits
• Helps maintain fuel efficiency and throttle response
• Simple maintenance step for aging Ram 1500 trucks

Who is this for: This 8-piece Champion Copper Plus spark plug set is for owners and technicians servicing Dodge Ram 1500 pickups (1997–2003) equipped with 5.2L or 5.9L V8 engines that require RC12LC4 plugs gapped at 0.040". It suits anyone seeking a direct OE-style replacement from a trusted ignition brand — ideal for routine tune-ups, pre-sale maintenance, or restoring consistent engine performance.