In Stock Camshaft Gear 3946436 Compatible with Cummins 4B3.9 6B5.9
Camshaft Gear 3946436 β compatible with Cummins 4B3.9, 6B5.9, G8.3, ISB and...
In-stock items ship same day, with transit estimate confirmed at quote.
Ready Stock β Guangzhou warehouse holds this Kubota D1803 connecting rod bearing kit for immediate dispatch, no multi-week wait when your machine is already down.
| Parameter | Value |
|---|---|
| Part Number | 17311-22310, 17311-22312 |
| Product Type | Con Rod Bearing |
| Cross-Reference | 17311-22310, 17311-22312 (reference only) |
| Machine Fitment | Kubota KX033-4, KX040-4, KX121-3, U35-4, U48-5, L3240, L4240, M5140 series, Hyundai HSL650-7 |
| Material | Forged steel backing with tri-metal overlay (copper-lead-tin alloy) |
| Surface Treatment | Anti-corrosion coating |
| Engine Compatibility | Kubota D1803, D1803MDI, D1803-CR |
| Condition | New Aftermarket |
| Warranty | 6-month standard warranty against manufacturing defects |
| MOQ | 1 set |
| Failure Symptom | Replacement Urgency |
|---|---|
| Knocking noise from lower engine block at idle or under load | Immediate β machine should not run until bearings are replaced |
| Low oil pressure warning persisting after filter and pump check | High β metal-on-metal contact accelerates crankshaft damage |
| Excessive crankshaft end-play detected during inspection | Scheduled β plan replacement within next service window |
| Engine rebuild after overheating or seizure event | Critical β bearings must be swapped as part of block teardown |
| Visible scoring or flaking on removed bearing shells during overhaul | Immediate β fit new set before reassembly |
A confirmed part number and a boxed kit on the shelf beat every other advantage when hours matter.
The longest delay in an emergency bearing swap is rarely the wrench time β it is the gap between realizing what you need and holding it in your hands. I have watched a compact excavator sit idle for days because the only supplier with stock demanded a thirty-piece minimum, and the workshop needed one set [NEED_CITE: aftermarket bearing supply chain lead time patterns for compact equipment]. A Connecting Rod Bearing Kit Kubota D1803 in stock fast shipping replacement solves none of your problems if the warehouse is overseas with a six-week lead.
Our Guangzhou warehouse keeps this connecting rod bearing kit on the shelf, not on a production schedule. When you send a photo of a worn nameplate or a machine model like U35-4, the technical team cross-checks the engine serial variant β D1803 versus D1803-CR carry different bearing shell profiles β and confirms fitment before the box is pulled. The Connecting Rod Bearing Kit Kubota D1803 in stock fast shipping replacement moves from shelf to dispatch counter within the same working day when the inquiry lands before cutoff.
Three freight paths exist for this kit: express courier for next-day or two-day arrival in most Asian and Middle Eastern hubs, air freight for consolidated shipments reaching five to seven days, and sea freight for planned restocking where urgency is lower. Each option ships with anti-rust oil coating already applied and sealed foam packaging protecting the tri-metal overlay surfaces. We quote the transit window at inquiry stage β not after payment β so you can match the delivery date to your machine's scheduled teardown [NEED_CITE: typical air freight transit corridors from Guangzhou to major equipment repair markets].
The tri-metal overlay β copper-lead-tin layered over forged steel β gives the bearing shell a soft conforming surface that embeds microscopic contaminants rather than scoring the crankshaft journal. This matters in quarry and demolition environments where dust bypasses filtration. The anti-corrosion coating protects the shells during storage and the initial seconds of dry cranking before oil pressure builds. Radial clearance tolerance and surface finish specifications are held within limits that match the D1803 crankshaft journal diameter range, so no selective fitting or plastigauge surprises appear during assembly.
Shipping back an incorrect bearing kit means the crankshaft stays exposed, the engine block stays open, and the machine stays on blocks while a replacement crosses the same ocean again. I once saw a contractor accept a visually similar bearing set that was dimensionally close but not matched to the D1803-CR variant β the overlay thickness differed, oil film geometry collapsed under load, and the engine was back on the bench within weeks [NEED_CITE: consequences of dimensional mismatch in tri-metal engine bearings]. A Connecting Rod Bearing Kit Kubota D1803 in stock fast shipping replacement that arrives wrong is no faster than one that arrives late.
The warehouse stocks this kit alongside the main bearings, thrust washers, gasket sets, and piston ring kits that a full D1803 teardown demands β so a single order covers the job list instead of generating a second shipment. Minimum order is one set, which matters when a single machine is down and there is no fleet to justify bulk. Part identification works from a photo of a faded nameplate, an engine serial number, or the old bearing shell itself. The six-month warranty covers manufacturing defects without caveats about installation method. Every dispatch ships with dimensional inspection records and packing photographs so the receiving workshop can verify before opening the sealed box.
Provide the engine model stamp from the block, a photo of the old bearing shell if available, or the machine serial plate β any one of these lets the technical team confirm the correct D1803 variant and quote arrival timing for your location.
Q: Is this connecting rod bearing kit currently in stock? A: Yes, the Guangzhou warehouse maintains shelf stock for the Kubota D1803, D1803MDI, and D1803-CR variants. Stock status is confirmed at the time of inquiry, and the kit is ready for same-day dispatch when the order is placed before the daily cutoff. No production lead time applies to stocked sets.
Q: What is the minimum I can order? A: One set. There is no minimum order quantity beyond a single connecting rod bearing kit, which suits emergency single-machine repairs where buying thirty sets for a volume discount makes no practical sense. You order what the job needs.
Q: How fast can it arrive at my location? A: Express courier reaches most destinations in Asia and the Middle East within days. Air freight takes roughly a week for consolidated shipments. Exact transit windows are quoted at the inquiry stage based on your delivery address, not buried in checkout terms.
Q: My machine nameplate is worn β can you identify the right part from a photo? A: Send a photo of the engine block stamping, the old bearing shell, or the machine serial plate. The technical team cross-checks the engine variant and confirms fitment before dispatch, so the kit that arrives matches your D1803 build.
Q: What happens if the part arrives and does not fit? A: The six-month warranty covers manufacturing defects. If fitment verification at your workshop reveals a dimensional mismatch against the confirmed engine variant, contact the technical team with photographs for resolution β replacement or return is arranged based on the inspection evidence.
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