149-2457 149-2311 140-3280 for Onan KY 4000 – Fast Dispatch

Ready Stock for Immediate Dispatch — Our Guangzhou warehouse holds this complete fuel filter, fuel pump, and air filter kit, so your Onan KY 4000 generator can be back online before the weekend.

Technical Specifications

Application Suitability

What Gets Your Generator Running Before the Next Shift

A confirmed Fuel Filter Fuel Pump Air Filter replacement in stock fast shipping order means your machine is producing power again within the week, not waiting on backordered components.

When a job site generator goes down, the clock starts ticking against your contract deadlines. Waiting for confirmation emails while the machine sits idle burns more money than the parts themselves. We hold this kit in our Guangzhou warehouse specifically because these units fail without warning and typically take the entire electrical system offline with them [NEED_CITE: generator maintenance downtime impact on remote construction sites].

The reality on the ground is that nameplates wear off, paint covers the model tags, and by the time you figure out which fuel pump variant you need, you have already lost a day. This Fuel Filter Fuel Pump Air Filter replacement in stock fast shipping solution eliminates that guesswork by letting you confirm fitment from a simple photograph of your old components.

Warehouse Availability and Quick Confirmation

When your generator is already offline, the priority is getting confirmed parts moving toward your location. This kit sits on our active pick shelves in Guangzhou, not in a distant consolidation center. Whether you need one set for an emergency repair or several for fleet servicing, the Fuel Filter Fuel Pump Air Filter replacement in stock fast shipping process begins the same day your order is confirmed.

Arrival Timing and Freight Options

Once dispatched, the clock shifts to transit. Express services typically deliver this kit within a few working days to most international destinations, while air freight suits larger batch orders. We quote arrival windows upfront so you can plan your repair crew's schedule around actual delivery, not optimistic estimates. Every package is packed to survive courier handling without damage to the aluminum filter housing or the brass impeller inside the fuel pump [NEED_CITE: international courier packaging standards for precision mechanical parts].

Reading the Specs That Matter on Site

The multi-layer cellulose-synthetic fuel filter media at 10-micron nominal filtration catches the particulate that destroys injector tips in diesel-compatible generators. The dual-seal fuel pump design matters because single-seal pumps tend to develop vapor leaks in high-ambient desert or tropical deployments. The air filter delivers 99.2% efficiency at 15 microns, meaning the oiled cotton gauze stops the fine dust that causes ring wear before it reaches the intake manifold. Output pressure holds steady between 3.5 and 4.2 PSI across the full -20°C to +60°C operating range, which is the difference between smooth idle and hunting on load changes.

The Real Cost of Wrong Parts Arriving Late

Getting the wrong filter or pump because of a misread nameplate does not just waste the shipping cost. The generator sits dead for another full cycle while you source the correct unit, your rental revenue disappears, and your crew finds other work to fill the gap. In remote mining camps or RV parks during peak season, that secondary downtime often costs more than the original failure [NEED_CITE: equipment rental revenue loss from extended unplanned downtime]. We have seen contractors lose entire weekend bookings because a 149-2457 filter arrived but the matching pump did not, forcing them to improvise with incompatible components.

Why Source This Kit Through XUNPO

Our Guangzhou warehouse holds physical stock of these kits, meaning your order ships from a shelf, not from a supplier's promise. Single-piece minimum orders mean you can replace one failed generator without buying a pallet. Send us a photograph of your worn nameplate or old part, and our technical team confirms the correct variant before anything ships. The six-month warranty covers manufacturing defects with full replacement, so you are not carrying the risk on an aftermarket Fuel Filter Fuel Pump Air Filter replacement in stock fast shipping purchase. Both our self-produced lines and sourced supply carry identical quality control and warranty terms under one account.

Documentation & Verification

• Commercial invoice and packing list with line-item part numbers for customs clearance.
• Compatibility sheet cross-referencing 149-2457, 149-2311, and 140-3280 to your specific generator model.
• Dimensional inspection record verifying ±0.15 mm tolerance before dispatch.
• Six-month warranty terms document covering manufacturing defects.
• Packing photographs showing secure bracing of aluminum housings and brass components.
• HS code and customs documentation support for international shipments.

Stock, Shipping & Arrival

• Physical stock in Guangzhou warehouse for same-day pick on confirmed orders.
• Express delivery arrives within working days to most major international hubs.
• Air freight available for consolidated multi-kit orders with quoted transit windows.
• Packaging designed for courier handling, protecting brass impellers and filter housings.
• Tracking number provided at dispatch with real-time shipment visibility.
• Arrival timing confirmed at the point of order, not after payment.

Send Your Details for Immediate Confirmation

To confirm stock and lock in your dispatch window, send us the part number you need replacing or a clear photograph of your generator nameplate. If the tag is painted over or illegible, a photo of the old filter, pump, and air filter together gives us enough to cross-reference against our compatibility database and confirm fitment before anything leaves the warehouse.

Frequently Asked Questions

Q: Is this kit in stock and how fast can it ship? A: This complete filter, pump, and air filter kit is held in our Guangzhou warehouse as physical stock. Once your fitment is confirmed and order is placed, dispatch typically happens the same or next working day. Express services can have the kit at your door within several working days depending on destination, and we quote specific arrival windows before you commit.

Q: Can I order just one set for an urgent repair? A: Yes. Our minimum order is one set, which means a single failed generator in your fleet or on your job site can be addressed without forcing you to buy bulk quantities. This is specifically designed for workshops and site supervisors who need one machine running immediately while planning larger orders separately.

Q: My nameplate is unreadable — can I send a photo to confirm the right parts? A: Absolutely. Send a clear photograph of your old components, including any visible markings, ports, or mounting patterns. Our technical team will cross-reference against the KY 3600 and KY 4000 series specifications and confirm whether 149-2457, 149-2311, and 140-3280 are the correct matches for your specific generator before anything ships.

Q: What happens if the parts do not match my generator on arrival? A: The six-month warranty covers manufacturing defects, and our pre-ship photo confirmation process is designed to prevent fitment issues. If something does not match despite our cross-reference checks, contact us immediately with photos and we will arrange a replacement or resolution. We verify variant differences before dispatch specifically to avoid this situation [NEED_CITE: aftermarket parts return and replacement policies for industrial equipment].

Q: How long until delivery by express or air freight? A: Express shipments typically arrive within several working days to major international destinations from our Guangzhou warehouse. Air freight suits larger consolidated orders and transit times vary by routing. We provide specific arrival estimates based on your location and chosen service at the time of quotation, so you can schedule your repair crew accordingly.