4 Glow Plugs 7030400 for Doosan D18/D24 & Bobcat S5xx/T5xx Cold Start

Product Specifications

Compatible Models

Tired of Cold-Start Failures on Your Doosan D24 or Bobcat S550? Get Reliable 7030400 Glow Plugs Today

Every unplanned cold-start failure costs your operation downtime — often $2,500+ per day in idle equipment and delayed jobs. Counterfeit glow plugs fail within weeks, causing repeated engine cranking issues and damaging starter motors. OEM replacements take 18–25 days to arrive, halting critical winter-season work on construction sites and quarries.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

XUNPO supplies this 4-piece glow plug set after rigorous validation: manufactured in ISO 9001-certified factories, tested for voltage response (11–14V), pre-ignition timing accuracy (±0.8 sec), and thermal cycling endurance (500+ cycles). Designed for high-load cold starts in excavator auxiliary systems and skid steer hydraulic power units, these plugs ensure consistent ignition across -25°C to +50°C ambient conditions — just like original Doosan D18N engine glow plugs and Bobcat T590 glow plug kit specifications require.

Where This Part Works

This glow plug set operates under extreme thermal stress in mining haul trucks, demolition site loaders, port material handlers, and municipal snow-removal skid steers. In sub-zero temperatures, the D24 engine’s compression ratio demands precise pre-heating to avoid misfires and unburned fuel washdown — a leading cause of cylinder liner wear. Correct glow plug function directly sustains combustion integrity during repeated start-stop cycles typical in urban infrastructure repair and quarry loading operations. A 4-piece glow plug set for skid steer ensures full bank coverage without mismatched resistance values.

Engineering Details That Matter

Each plug uses a dual-coil ceramic heating element rated for 12V nominal input and peak current draw ≤15A — matching OEM electrical load profiles to prevent relay or ECM overload. The stainless steel housing (AISI 304) resists corrosion from condensation and exhaust gas recirculation residues common in compact engine bays. Precise thread pitch (M10×1.25) and seating depth (19.5 mm ±0.1 mm) guarantee leak-free sealing against cylinder head ports. Surface hardness (HV 320–350) prevents galling during installation and maintains torque retention over 3,000 thermal cycles — verified via accelerated life testing before shipment.

The Real Cost of Wrong Parts

A $12 counterfeit glow plug may save upfront, but causes $1,800+ in secondary damage: premature injector coking, EGR valve fouling, and excessive crank time that wears starter pinions. Industry data shows non-compliant glow plugs reduce cold-start reliability by 68% and increase post-start smoke duration by 4.3x — violating Tier 4 Final emission compliance thresholds. Total cost of ownership (TCO) favors XUNPO’s 7030400 glow plug replacement: 6-month warranty covers full unit replacement, no prorating; performance testing ensures conformance to ISO 10002 and SAE J1939-71 standards; and technical documentation supports fleet maintenance audits. Doosan D24 cold start glow plug failure is never just about heat — it’s about system-wide combustion integrity.

Why Customers Trust XUNPO

Packaging & Shipping

• Each glow plug sealed in individual anti-static blister pack with molded foam insert; 4 pieces grouped in branded retail box with bilingual (EN/CN) labeling and safety warnings.
• In-stock items ship within 2–5 working days after payment confirmation.
• Flexible logistics: DHL/FedEx/UPS express (3–7 days), air freight (7–12 days), or sea freight (25–40 days).
• Real-time tracking number provided upon dispatch; integrated with major carrier platforms for end-to-end visibility.
• MOQ is 1 piece — designed for urgent field repairs and diagnostic validation.

Get Your Glow Plugs Now — No Delays, No Guesswork

Your machine isn’t generating revenue while waiting for parts. Send us your exact model (e.g., “Bobcat S550 serial #S550XXXXX” or “Doosan D24 engine tag photo”), quantity, and destination — we’ll reply with a formal quote within 24 hours. First-time buyers can request one set for sample testing before bulk order. All 7030400 glow plug replacements ship from Guangzhou with full traceability and technical support included.

Frequently Asked Questions