QC10WEP Pack of 24 Spark Plugs | BRP 0770434

BRP QC10WEP Spark Plugs | Shop Pack of 24 | Part #0770434 | Evinrude E-TEC Outboards 25–250HP | MacombMarineParts.com

The QC10WEP is the correct OEM spark plug for a wide range of Evinrude E-TEC outboards from 25HP through 250HP, covering model years from 2005 through current production. This shop pack of 24 is the smart buy for marine dealers, service shops, and fleet operators who go through plugs regularly — stock the shelf once and have the right plug on hand for the majority of E-TEC engines that come through the door.

Part Details:

• BRP Part Number: 0770434
• Plug Type: QC10WEP
• Quantity: Pack of 24
• Manufacturer: BRP (Bombardier Recreational Products)
• Condition: New, Genuine OEM
• Country of Origin: USA

Engine Fitment:

• 25/30 HP — 2009 through current (AF models)
• 40/50/60 HP — 2008 through current
• 75/90 HP — 2008 through current
• 115/130 HP — 2008 through current (AF models)
• 150/175/200 HP — 2008 through current (AB models)
• 200/225/250 HP 3.3L — 2005–2008

Always verify the correct plug type against your specific engine model and serial number using your Evinrude parts diagram or service manual before installation.

Additional Information

Why the QC10WEP Matters for E-TEC Engines:

Evinrude E-TEC direct injection outboards are precision fuel delivery systems — spark plug condition directly affects combustion efficiency, fuel economy, and emissions performance. The QC10WEP is engineered specifically for E-TEC applications, with the correct heat range, electrode gap, and thread reach for these engines. Using an incorrect plug — even one that physically fits — can cause misfires, fouling, and reduced E-TEC system performance.

For service shops, keeping genuine OEM QC10WEP plugs on the shelf means every E-TEC tune-up goes out the door with the right part installed — no substitutions, no comebacks.

Why Buy the Shop Pack of 24:

• Cost-effective bulk pricing — lower per-plug cost vs. buying individually
• Covers the majority of E-TEC outboard applications — one SKU for 25HP through 250HP across multiple model years
• Genuine OEM BRP plugs — correct spec every time, no aftermarket substitution risk
• Shelf-ready for service shops and dealers — stock once, use across your entire E-TEC customer base

Frequently Asked Questions

1. How do I confirm the QC10WEP is the correct plug for my engine?
Cross-reference BRP part #0770434 against your Evinrude engine's parts diagram or service manual using your engine model and serial number. The fitment list above covers the primary applications, but always verify against your specific engine before installation.

2. What is the correct gap for the QC10WEP?
Refer to your Evinrude E-TEC service manual for the correct spark plug gap specification for your specific engine model. E-TEC engines have precise ignition requirements — always set the gap to the manufacturer's specification rather than using a generic setting.

3. How often should spark plugs be replaced on an Evinrude E-TEC?
Evinrude generally recommends spark plug inspection and replacement as part of the annual service or every 300 hours of operation, whichever comes first. E-TEC engines are designed for extended service intervals compared to conventional two-strokes, but plug condition should still be checked regularly, especially on high-hour engines.

4. Can I use aftermarket plugs instead of OEM QC10WEP?
We recommend using genuine OEM BRP QC10WEP plugs for E-TEC applications. E-TEC direct injection systems are sensitive to spark plug specification — heat range, electrode material, and gap all affect combustion and emissions performance. Aftermarket plugs may physically fit but can cause misfires, fouling, or E-TEC diagnostic faults if they don't meet the OEM specification exactly.