Product Specifications
| Parameter | Details |
|---|
| Part Name | Spark Plug |
| Part Number (OEM Reference) | X52404500062, X52404500056, X52404500050, X52404500027, X52404500039, X52404500049 |
| Brand Compatibility | MTU |
| Machine Model Fitment | MTU 4000, 16V/4000-L61, 16V4000L61 |
| Replacement Part Numbers | MDE: 70700180049; Federal Mogul: 0004.800.986.00.07, 18VGZ1-77; Caterpillar: 0346-5123; Tenneco: FB95WPV; TORCH: R6GC1-77M; Energy Choice: E6014251; Motortech: MPC1800, MPC1900 |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Packaging | Original sealed box with anti-static foam and branded labeling |
Compatible Models
| Brand | Applicable Models |
|---|
| MTU | 4000, 16V/4000-L61, 16V4000L61 |
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
We partner exclusively with ISO 9001-certified manufacturers and conduct incoming material inspection on every batch. Each spark plug undergoes 100% functional testing — including gap verification, insulation resistance measurement (>10 GΩ), and cold resistance validation — before shipment. All units carry a 3–12 month warranty covering manufacturing defects. With 10 years of export experience serving 120+ countries, our 20-person technical team verifies part compatibility within 2 hours. Over 10,000 engine SKUs are held in stock at our Guangzhou warehouse — ready for same-day dispatch.
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
Q: Is this an original MTU part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket spark plug, manufactured in ISO 9001-certified facilities to meet MTU X52404500062 dimensional, material, and performance specifications.
Q: How do I confirm if this spark plug fits my specific MTU engine?
A: Provide your engine serial number or exact model (e.g., 16V4000L61), and our technical team will verify compatibility and cross-reference all valid part numbers — response within 2 hours.
Q: What is the warranty period for this spark plug?
A: 3–12 months from date of shipment, covering defects in materials or workmanship. Defective units are replaced free of charge upon return verification.
Q: What is the minimum order quantity?
A: 1 piece — no minimum order required. Ideal for urgent repairs, pilot testing, or single-unit replacement.
Q: How soon can I receive the spark plugs after placing an order?
A: In-stock items ship within 2–5 working days. Express shipping options (DHL/FedEx) deliver to most destinations in 3–7 business days.
Q: Can I request a physical sample before placing a bulk order?
A: Yes — first-time customers are eligible for sample testing. Contact us via WhatsApp or email to arrange.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com
