Spark Plug for MTU 4000 Engine – OEM-Fit High-Performance Replacement

Product Specifications

Compatible Models

Tired of Engine Misfires and Unplanned Downtime? Get the Right MTU 4000 Spark Plug for Your 16V4000L61 Generator Set

Every hour your MTU-powered generator or marine propulsion system sits idle due to ignition failure costs thousands in lost revenue — especially during peak grid demand or critical port operations. Counterfeit spark plugs fail prematurely under high-compression diesel-gas dual-fuel cycles, while OEM replacements take 3–4 weeks to arrive from Europe. Sourcing reliable ignition components across multiple MTU engine variants has long been a logistical bottleneck for fleet technicians and power plant maintenance teams.

OEM-Fit Performance, Stocked and Shipped from Guangzhou

This MTU 4000 spark plug delivers consistent ignition timing and thermal stability across full load ranges — validated through pre-shipment performance testing at ISO-certified factories. Backed by 10 years of global export experience and a warehouse holding 10,000+ commonly used engine parts, we ship X52404500062 replacements within 2–5 working days. Designed for real-world use in generator sets, marine propulsion, and mobile power units, it meets original torque, gap, and heat range specifications without modification.

Where This Part Works

This spark plug operates reliably in heavy-duty continuous-run environments: container terminal backup generators, offshore oil rig auxiliary power systems, mining site mobile power units, and marine vessel propulsion control systems. Under sustained 16V4000L61 operation at 1,500 rpm and exhaust gas temperatures exceeding 750°C, precise electrode geometry and nickel-alloy ground strap integrity prevent pre-ignition and fouling — making correct part selection non-negotiable for uptime-critical applications.

Engineering Details That Matter

The center electrode uses iridium-enhanced nickel alloy for extended service life under repeated thermal cycling. The insulator is 95% alumina ceramic — rated to 1,200°C — ensuring dielectric stability in high-humidity marine and tropical environments. Thread pitch and seat angle match OEM X52404500062 exactly (M14×1.25, 19° tapered seat), guaranteeing proper compression sealing and heat transfer to the cylinder head. Cold resistance value is calibrated to 22 kΩ at 20°C, maintaining optimal voltage distribution across the spark gap even after 1,000 operating hours.

The Real Cost of Wrong Parts

A $12 counterfeit spark plug may save upfront but often fails before 200 operating hours — causing misfire-induced cylinder liner scoring, unburnt fuel dilution of crankcase oil, and unplanned shutdowns. Industry data shows incorrect ignition components increase total cost of ownership (TCO) by 3.7× over 12 months when factoring labor, secondary damage, and production loss. This replacement spark plug conforms to ISO 2103:2018 ignition component standards and matches OEM heat range (HR 7), ensuring predictable burn characteristics and preventing thermal runaway in high-output MTU 4000 configurations.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in anti-static blister packaging with molded foam cushioning inside reinforced corrugated cartons
• In-stock items shipped within 2–5 working days after payment confirmation
• Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — selected per customer requirement
• Real-time tracking number provided upon dispatch, with end-to-end visibility until delivery
• Minimum order quantity: 1 piece — supporting urgent field repairs and small-batch testing

Get Your MTU 4000 Spark Plugs Now

Your MTU 16V4000L61 generator isn’t generating revenue while waiting for parts. Send us your required part number (e.g., X52404500062), machine model, and quantity — we’ll issue a competitive quotation within 24 hours. First-time customers can request sample units for functional validation before bulk ordering. Every order ships from Guangzhou with full traceability and warranty coverage.

Frequently Asked Questions