SYKRSS Ignition Coil and Iridium Spark Plug Tune-Up Kit for GM 3.0L/3.6L V6 (2007–2020) — 6 Coils + 6 Pre-Gapped Plugs, OE Fit

SYKRSS supplies a full tune-up kit of six ignition coils and six pre-gapped iridium spark plugs engineered to replace OE UF569 and 41-109 on GM 3.0L and 3.6L V6 engines (2007–2020).

If your Buick, Cadillac, Chevrolet, GMC, or Saturn V6 is showing misfires, rough idle, or reduced fuel economy, this matched coil-and-plug set restores the complete ignition path rather than treating symptoms. The kit is built to match factory dwell time, connector fit, and heat tolerance so you can swap components without ECU reflashes or guesswork. Each coil is numbered for easy cylinder identification and the iridium plugs arrive pre-gapped for immediate installation.

How will this kit improve my vehicle's running condition?

Replacing coils and plugs together addresses both spark generation and delivery, which often fail progressively under high engine bay temperatures. That combination reduces misfires, stabilizes idle, and sharpens throttle response by ensuring a consistent, hotter spark across all cylinders.

• Eliminates common misfire codes (P0300–P0306) by restoring full ignition continuity.
• Provides smoother idle and crisper acceleration immediately after installation.
• Designed for stable voltage under load for improved combustion efficiency.

Will these parts fit my 3.6L or 3.0L GM V6 and match OEM specs?

Yes — the SYKRSS set cross-references common OE numbers (including UF569, 41-109, 12618542, 12590990, and others) and is manufactured to the same heat range, connector dimensions, and dwell specifications as factory units. That prevents electrical or fitment surprises during replacement.

• Fits Buick, Cadillac, Chevrolet, GMC, and Saturn V6 models from 2007–2020 listed in the product fitment.
• Coils labeled by cylinder to simplify swap procedures and avoid misrouting.
• No ECU reflash or additional tuning required when using this kit as a direct replacement.

What are the material and installation details I should know?

SYKRSS coils use high-temperature epoxy and copper windings to resist cracking and thermal degradation, while the spark plugs feature long-life iridium tips pre-set to the correct gap. Installation is straightforward with basic hand tools and a 15–20 ft‑lb torque specification for plugs.

• Durable Japanese-style high-temp epoxy and German copper windings in each coil.
• Iridium spark plug tips pre-gapped for plug sockets and immediate use.
• Standard tools required: 10mm socket for coil bolts and 5/8" spark plug socket; torque 15–20 ft‑lbs.

Can I expect fuel economy or performance gains after replacement?

While results vary by vehicle condition, restoring proper spark delivery and efficient plug firing frequently yields smoother operation and modest fuel efficiency improvement. The kit’s combination of hotter ignition coils and low-voltage iridium plugs is intended to optimize combustion stability.

• Improved combustion consistency can reduce wasted fuel and rough-running losses.
• Typical observed gains are a noticeable smoothing of idle and quicker throttle response.
• Some users report a small MPG increase when worn ignition parts are replaced together.

Who is this for: This SYKRSS 6-coil and 6-plug kit is for owners and technicians maintaining 3.0L or 3.6L GM V6 engines (2007–2020) who want an OE-compatible, drop-in tune-up solution. It’s aimed at those replacing multiple ignition components at once—restoring reliability, clearing misfires, or preparing a vehicle for daily driving or inspection. Backed by a 12-month warranty and clear cylinder labeling, the kit suits DIY mechanics and professional shops seeking an all-in-one ignition refresh.