4Pcs Glow Plug 8-98290-755-0 for Isuzu 4JJ1 / 4HK1 – In Stock

In-Stock Fast Dispatch — Guangzhou warehouse holds this cold-start component ready to ship, cutting typical multi-week lead times down to days for urgent field repairs.

Technical Specifications

Application Suitability

Why Your Truck Sits Idle Waiting for a Small Part

We ship the replacement glow plug from stock within days, not weeks.

A fleet operator in a regional depot called us after their local supplier quoted a bulk minimum on a single failed plug, leaving an Isuzu NPR off the road for a scheduled delivery route. The machine was down, the diagnosis was clear, but the minimum order quantity blocked the purchase. We have seen this pattern repeat across urban delivery fleets and demolition contractors alike — a minor electrical component halts a machine that otherwise runs fine [NEED_CITE: common causes of cold-start failure in light commercial diesel fleets]. Waiting for confirmation on a part number when the stamped marking is worn off adds further delay, turning a quick fix into a multi-day outage.

Availability and Fast Part Number Confirmation

This glow plug is maintained in our Guangzhou warehouse as a high-turnover cold-start item. When a workshop supervisor sends a photo of a corroded or painted-over nameplate, our technical team cross-references the machine model and engine serial to confirm fitment within hours. The MOQ of one set (4 pcs) means you do not need to pad an order with stock you will not use. Whether the truck is an Isuzu FTR waiting at a job site or an NQR in a municipal fleet, the part ships without waiting for a production batch.

Freight Options and Arrival Timing

Once the fitment is confirmed, we quote express, air, and sea freight options with estimated arrival windows so you can choose based on how long the machine has already been down. Express couriers deliver tracked, door-to-door, which suits a single truck off the road. For a fleet depot restocking multiple units, air freight balances speed and cost on heavier consolidated shipments. Every dispatch includes real-time tracking details. Response to inquiries continues outside standard business hours to match the time zones of overseas buyers [NEED_CITE: international freight transit time estimates for small parcel versus air cargo].

Reading the Specifications That Matter

The AISI 304 stainless steel sheath resists corrosion from combustion chamber condensate, which is the primary degradation path for plugs in stop-start urban delivery cycles. The dual-coil ceramic heating element reaches 1000°C surface temperature within 12 seconds, providing the thermal energy needed for reliable ignition of the air-fuel mixture in a cold cylinder. Internal resistance at 0.95 ± 0.05 Ω must match the engine control module's expected range; a plug outside this window can trigger a fault code even if it physically fits. The recommended installation torque of 18–22 N·m prevents thread damage in the aluminium cylinder head while ensuring a gas-tight seal.

The Cost of Guessing the Part Number

Ordering a plug that physically threads in but carries the wrong resistance value leads to repeated cold-start failures and potential ECU fault codes, sending the technician back to diagnostics. A second round of downtime on the same truck compounds the initial delay, especially when the vehicle is needed for a contracted route or a concrete pour window. Confirming the part from an engine serial number or a photograph before dispatch eliminates this guesswork and keeps the repair to a single intervention [NEED_CITE: diagnostic time cost of incorrect part fitment in commercial vehicle repair].

What Makes This Source Different

We produce selected part lines in our own facility and source the remainder from qualified ISO-certified partners, so every glow plug carries the same quality control and six-month warranty regardless of production origin. Eight product categories under one account means related items — seal kits, filters, electrical connectors — can ship on the same consignment. The one-piece minimum applies here and across our range, so an emergency single-set order is never blocked. Guangzhou warehouse stock on fast-failure items like this plug keeps dispatch times short. Part identification from a machine model, a photograph, or a worn nameplate image removes the need for a legible stamp. Our technical team verifies compatibility and confirms the correct variant before the order ships.

Documentation & Verification

• Commercial invoice and packing list referencing part number 8-98290-755-0 and engine compatibility
• Cross-reference sheet listing alternate numbers 8-97379-296-0 and variants (reference only)
• Quality inspection record confirming resistance and sheath integrity per unit
• Six-month warranty terms covering manufacturing defects with no restocking fees on valid claims
• Packing photographs showing individual plug condition before carton sealing

Stock, Shipping & Arrival

• Current warehouse status confirmed at time of inquiry, not assumed from catalog listing
• Express dispatch typically reaches international destinations within several business days with full tracking
• Air freight available for multi-set orders consolidated with other engine auxiliary components
• Carton packing protects ceramic element and terminal post during courier handling
• Estimated arrival window quoted per freight method before order confirmation

Send Us What You Have

To get a fast fitment answer, provide the Isuzu engine model (4JJ1, 4HK1, 4HK1-TCS, or 4HK1-TCN), the truck model and year, or a clear photograph of the existing plug and nameplate. We will confirm stock status, the correct part variant, and a freight quote with estimated arrival so you can decide how urgently to ship.

Frequently Asked Questions

Q: Is this glow plug set currently in stock and when will it ship? A: This part is held in our Guangzhou warehouse as a common cold-start item. Stock status is confirmed at the time of your inquiry. Once confirmed and ordered, dispatch typically occurs within a few working days, with express tracking provided so you can monitor transit to your location.

Q: Can I order just one set of 4 pieces or is there a larger minimum? A: The minimum order is one set of four plugs. This supports urgent single-vehicle repairs and diagnostic validation without requiring you to commit to a larger batch. You order exactly what the job needs.

Q: How long does delivery take by express versus air versus sea? A: Express courier is the fastest option, suited for a single urgent set, and delivers door-to-door with tracking. Air freight is practical for multiple sets or consolidated orders. Sea freight is economical for larger volumes but carries longer transit times. We quote estimated arrival windows for each option upfront.

Q: The number on my old glow plug is worn off — can you confirm fitment? A: Yes. Send us the machine model, the engine serial number, or a photograph of the existing plug and the engine nameplate. Our technical team cross-references these against our compatibility records to confirm the correct variant before you order.