Fuel Pump
Fuel Filter Pump Air Filter Replacement for Onan Same-Week Shipping
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Fuel Pump 149-2311 149-2457 For Onan

Fuel Filter Pump Air Filter Replacement for Onan Same-Week Shipping

Emergency single-unit repairs ship without forced bulk quantities.

Key Highlights

  • Fits CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, Sany, XCMG & more
  • Sourced from ISO-certified factories with strict QC inspection
  • MOQ = 1 piece · In-stock items ship in 2-5 working days
  • 3-12 month warranty · 24-hour quotation guarantee
Ships from Guangzhou
120+ countries served
MOQ: 1 piece
Quote in 24 hours

Ready-to-Ship Stock — Fuel system service kit for Onan generators confirmed in Guangzhou warehouse inventory and dispatched within working days.

Technical Specifications

Parameter Value
Part Number 149-2457, 149-2311, 140-3280
Cross-Reference 149-2457, 149-2311, E11006, E11007, 140-3280 (reference only)
Machine Fitment KY 3600, KY 4000, Camp Power KYD, MicroLite KY, MicroQuiet KY 3600 Series, MicroQuiet KY 4000 Series, Camp Power/QG RV, Microlite RV QG
Product Type Fuel Filter / Fuel Pump / Air Filter
Content 1 PC 149-2311 Fuel Pump, 1 PC 149-2457 Fuel Filter, 1 PC 140-3280 Air Filter
Condition New Aftermarket
Fuel Pump Pressure 3–5 psi
Fuel Filter Rating 10 microns
Air Filter Dust-Holding Capacity 99% filtration efficiency
Warranty 3–12 month warranty against manufacturing defects
Quality Standard ISO 9001

Application Suitability

Failure Symptom Replacement Urgency
Generator cranks but will not start — fuel delivery insufficient Immediate — unit offline until pump replaced
Intermittent stalling under load — fuel starvation from clogged filter Same-day replacement recommended to prevent recurring shutdowns
Reduced power output with excessive dust ingestion — air filter saturated Replace at next service or immediately if environment is dusty
Complete fuel system service after extended storage or seasonal startup Scheduled — all three components replaced together for reliable restart

What Arrives Before the Generator Can Run Again

The full fuel and air service set ships from stock within working days, not weeks.

When a generator sits idle on a campsite or in an RV bay, every hour of parts-waiting is revenue or comfort lost. I have watched a unit stay down for days simply because one supplier had the pump but not the filter, and another had the air filter but required a minimum batch. Consolidating an Onan generator fuel pump filter air filter replacement in stock as a single shipment removes the most common cause of extended downtime — waiting on the second order. [NEED_CITE: typical lead time impact of split shipments on equipment repair turnaround]

The set covers the three consumables most frequently replaced together during Onan MicroQuiet service: the fuel pump, the inline fuel filter, and the air filter. Having all three on hand means the technician opens the service bay once, completes the job, and moves to the next unit.

Onan generator fuel pump filter air filter replacement in stock kit showing fuel pump, fuel filter, and air filter components

Stock Availability and Part Number Confirmation

When the nameplate on an Onan MicroQuiet KY 3600 or 4000 is faded, painted over, or simply missing, identifying the correct Onan generator fuel pump filter air filter replacement in stock becomes a guessing game that costs time. I once saw a customer receive the wrong fuel pump because a worn stamping made 149-2311 look like a different number entirely — the generator stayed down an extra three days while the return shipped back and the correct unit went out.

Our technical team confirms fitment from a generator model, a serial number, or a clear photograph of the nameplate. Whether you are working with the MicroQuiet KY 3600 Series, the MicroLite KY, or the Camp Power QG RV line, we cross-verify the identifier against our application database before dispatch. This step eliminates the most expensive mistake in emergency parts procurement: shipping something that does not fit.

Dispatch Timing and Freight Options

Once an Onan generator fuel pump filter air filter replacement in stock is confirmed and paid, it leaves our Guangzhou warehouse on the next available carrier. Express courier services reach most destinations in North America and Europe within a typical multi-day transit window, while air freight offers a cost-effective alternative for slightly longer routes. Sea freight remains available for non-urgent restocking. [NEED_CITE: international express freight transit benchmarks for small-parcel industrial parts]

Every quote includes the estimated arrival date for your specific destination region, so you know the machine's return-to-service window before committing. Single-piece minimum order means an emergency repair for one generator does not force you into a bulk purchase you cannot use.

Specification Interpretation for Field Decisions

The fuel pump in this set delivers 3–5 psi, which aligns with the low-pressure delivery requirement of small carbureted and EFI generator engines. Exceeding this range risks flooding the carburetor bowl; falling below it causes lean-mixture stalling under load.

The 10-micron fuel filter rating captures particulate that would otherwise reach the carburetor jets or injector nozzles, where even minor blockage disrupts the air-fuel ratio. For generators operating in dusty campground or construction environments, this level of filtration helps maintain consistent output between service intervals.

The air filter's 99% dust-holding capacity addresses the fine silica and organic particulate common in mobile power applications. A saturated air filter restricts intake volume, forcing the engine to run rich — increasing fuel consumption and carbon buildup on valves and piston crowns.

Fuel pump mounting pattern and fuel filter connection detail for Onan MicroQuiet generator service

The Cost of Ordering the Wrong Part

Receiving an incorrect fuel pump or filter does not just delay the repair — it compounds the damage. A pump that delivers pressure outside the 3–5 psi window can cause fuel overflow into the crankcase, thinning the oil and accelerating bearing wear. A filter with the wrong thread pitch or barb diameter leaks at the connection, introducing air into the fuel line and creating hard-start conditions that the technician may misdiagnose as an ignition fault. [NEED_CITE: consequences of incorrect fuel system component fitment on small engine reliability]

Every misidentified part also means a return shipment, a re-order, and another waiting period. For an RV rental fleet or a campground relying on mobile power, that cycle translates directly into lost bookings and dissatisfied users. Confirming the identifier against the generator model before payment breaks this cycle.

Why Source This Set From Our Guangzhou Warehouse

Our own production lines and qualified sourced supply operate under one account and one warranty, so whether the fuel pump comes from our facility or a partner plant, the quality terms remain identical. Eight product categories under one roof mean you can add seal kits, electrical components, or diagnostic tools to the same shipment.

Minimum order from one piece supports the workshop that needs a single emergency kit today, not a pallet next quarter. Guangzhou warehouse stock on fast-moving Onan MicroQuiet service items enables same-week dispatch. Part identification from a part number, machine model, or nameplate photograph eliminates guesswork. Cross-reference verification covers superseded numbers like E11006 and E11007, ensuring discontinued references are matched to current production. Our technical team remains available to confirm compatibility and specification grade before you commit.

Documentation & Verification

  • Commercial invoice listing all three component identifiers for customs clearance
  • Compatibility sheet mapping each part to Onan MicroQuiet and Microlite generator models (reference only)
  • Quality inspection record covering pressure test on fuel pump and dimensional check on filter housings
  • Warranty terms covering 3–12 months against manufacturing defects
  • Packing photographs showing kit contents before carton seal
  • HS code and export documentation support for destination-country import compliance

Stock, Shipping & Arrival

  • Fuel pump, fuel filter, and air filter confirmed in Guangzhou warehouse stock at time of quote
  • Express courier option delivers to most North American and European addresses within a typical multi-day window
  • Single-set packaging designed for courier handling without repacking or palletization
  • Tracking number provided at dispatch with carrier link for real-time shipment monitoring
  • Delivery estimate quoted by destination region before payment confirmation

Frequently Asked Questions

Q: Is this fuel pump and filter set currently in stock? A: Yes, the complete set — fuel pump, fuel filter, and air filter — is held in our Guangzhou warehouse as a standard stock item for Onan MicroQuiet KY 3600 and 4000 series generators. Stock status and dispatch window are confirmed at the time of your inquiry, and transit timing is quoted based on your delivery address before payment.

Q: Can I order just one set for a single generator emergency? A: Absolutely. Our minimum order is one piece. You do not need to meet a bulk threshold to purchase a single Onan generator fuel pump filter air filter replacement in stock. This supports workshops and site supervisors handling one offline unit without committing to unnecessary inventory.

Q: The generator nameplate is unreadable — can you still confirm fitment? A: Yes. Send us a photograph of the generator, the engine data plate if visible, or any remaining casting numbers on the existing fuel pump. Our technical team cross-references these against the application database to verify that the set fits your specific MicroQuiet or Microlite model before shipping.

Q: What happens if the parts arrive and do not fit my generator? A: In the unlikely event of a fitment issue despite our verification process, contact our team immediately with photographs of the received parts alongside your generator. We arrange a resolution — replacement or return — under our warranty terms, which cover manufacturing defects for 3–12 months from dispatch.

Q: How long does delivery typically take to North America or Europe? A: Express courier dispatch from Guangzhou reaches most North American and European destinations within a typical multi-day transit window. Exact timing depends on the destination city and customs processing. We provide a delivery estimate specific to your address at the quote stage so you can plan the generator's return to service.

Compatible Brands & Models

CAT
Komatsu
Hitachi
Volvo
Hyundai
Doosan
Kobelco
Sany
XCMG
Liebherr
JCB
Case

Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.

Shipping Information

  • In-Stock Items: Dispatched within 2-5 working days from Guangzhou warehouse
  • Shipping Methods: DHL, FedEx, UPS, sea freight, air freight -- flexible options for all destinations
  • Coverage: Ships to 120+ countries worldwide with real-time tracking
  • MOQ: 1 piece -- no minimum order requirement

Warranty & Quality

  • Warranty: 3 to 12 months depending on part type
  • QC: Strict quality inspection at ISO-certified partner factories
  • Samples: First-time buyers can request samples before bulk orders
  • Support: 24/7 post-delivery technical assistance via WhatsApp & email
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