ENA Round Ignition Coils 8-Pack UF414 — Direct-Fit 12V Replacement for Chevy Silverado 1500 and GM V8s

ENA 8 Pack Round Ignition Coils (UF414) are a direct-fit replacement coil set engineered to restore consistent spark delivery for many GM V8 engines.

If your V8-equipped Chevy, GMC, Cadillac, or related GM vehicle is showing rough idle, poor throttle response, or misfire codes, worn ignition coils are a common cause. This ENA coil pack kit contains eight round-design coils (UF414 family) built for bolt-on installation at the valve cover and specified for 12V systems. The set is supplied with a 12-month warranty and fits a long list of model years and engine displacements — but confirm your existing coils are the round style before ordering.

Which vehicles and engines will these ENA coils fit?

These round ignition coils are compatible with many GM V8 platforms across Chevrolet, GMC, Cadillac, Pontiac, Hummer and more. Fitment covers multiple model years and engines from 4.8L up to 7.0L when the vehicle uses the round UF414 coil design.

• Chevrolet: Silverado 1500 (2007–2013) 4.8L/5.3L/6.0L/6.2L, Suburban, Tahoe, Corvette, Camaro, Avalanche, Colorado, Impala, Monte Carlo, SS, SSR, Express, Caprice.
• GMC: Sierra 1500/2500/3500, Yukon, Yukon XL, Savana, Envoy families across listed years and V8 displacements.
• Cadillac, Pontiac, Hummer: Escalade lines, G8, GTO, Grand Prix, H2/H3 as specified in the fitment list.
• Reference part numbers include UF414, C1512, D514A and several OEM cross-refs — verify against your OE coil number.

How easy is installation and what should I check before buying?

ENA round coils are designed for plug-and-play replacement with bolt-on mounting at the valve cover. Basic hand tools are sufficient for removal and installation, but always disconnect the battery and follow manufacturer safety steps.

• Confirm your vehicle uses ROUND coils (UF414) not SQUARE (UF413) by comparing shape and part numbers.
• Check each coil’s electrical connector and terminal orientation matches your originals.
• Replace coils one cylinder at a time to prevent ignition lead mix-ups on multi-coil engines.
• Torque mounting bolts to factory spec and clear any stored engine codes after install.

What are the technical details and quality features of this ENA coil set?

These coils are manufactured to meet common OE fit-and-function requirements for GM V8 engines with a 12V system. They provide consistent spark output and are built for bolt-on installation at the valve cover mounting location.

• Terminal quantity: 4; Mount type: bolt-on; Mounting location: valve cover.
• Voltage rating: 12V and engineered for stable spark performance under typical driving conditions.
• Sold as a set of eight coil packs to replace all cylinders in V8 engines for balanced performance.
• Delivered with a 12-month warranty for peace of mind and quality assurance.

When might you need a full 8-pack replacement instead of individual coils?

Replacing the entire set makes sense when multiple coils show wear, when you want uniform performance across all cylinders, or when the vehicle has high mileage and you prefer preventative maintenance.

• If you have repeated misfires across several cylinders or intermittent rough running.
• When replacing spark plugs that are significantly worn or when performing engine tune-up.
• To avoid uneven ignition timing and maintain consistent combustion across the V8.
• When diagnostics show coil circuit faults on multiple cylinders or recurring codes.

Who is this for: The ENA 8 Pack Round Ignition Coils is intended for owners and technicians working on GM V8 vehicles that require the UF414 round coil design — including Silverado, Sierra, Tahoe, Suburban, Escalade, Corvette, Camaro, and similar models. If you want a complete, plug-and-play coil set to restore balanced ignition across all eight cylinders, and your original coils are round-style, this kit offers a practical, warranty-backed option for repair or preventative replacement.