Connecting Rod Bolt 16851-22140 β replacement for Kubota D722 engines, high-tensile alloy steel with heat treatment.
6-month warranty against manufacturing defects, ISO 9001 quality control. One-piece MOQ with dispatch timing confirmed at quote.
Stock Ready to Ship β Guangzhou warehouse holds this connecting rod bolt for Kubota D722 engines, packed and ready for same-day dispatch when your machine is already down.
| Parameter | Value |
|---|---|
| Part Number | 16851-22140 |
| Product Type | Connecting Rod Bolt |
| Cross-Reference | 16851-22140 (reference only), 1685122140 (reference only), 16851-2214-0 (reference only) |
| Engine Fitment | D722 |
| Material | High-tensile alloy steel, heat-treated |
| Condition | New Aftermarket |
| Warranty | 6-month warranty against manufacturing defects |
| Packaging | Individual blister pack with anti-corrosion film, reinforced cardboard box |
| Certification | ISO 9001 |
| Failure Symptom | Replacement Urgency |
|---|---|
| Rod bolt stretch or fatigue crack detected during teardown | Immediate β engine cannot run with compromised fastener |
| Bolt thread deformed after previous over-torque event | Machine down until replacement arrives and is torqued to spec |
| Missing bolt during partial engine disassembly | Work halted on site or in shop until single piece is sourced |
| Scheduled overhaul requiring fresh fasteners per service manual | Urgent if engine block is already open on the bench |
A connecting rod bolt 16851-22140 in stock ships the day you confirm β not weeks later.
When a Kubota D722 engine sits open on a shop floor, every hour of waiting for a single fastener multiplies into lost revenue for the contractor and idle labour for the mechanic. I have watched repair bays occupied for days because one small bolt was on back-order while the rest of the overhaul kit arrived on time. The bottleneck is never the big components β it is the small, easy-to-overlook hardware that halts the entire job [NEED_CITE: equipment downtime cost multipliers during partial disassembly].
Getting a connecting rod bolt 16851-22140 in stock confirmed takes minutes, not days. Send a photograph of the nameplate or a shot of the old bolt beside a ruler, and our technical team replies with fitment confirmation within two hours during business cycles. This matters when the original part number is painted over or the data plate has corroded past readability. We cross-check against engine serial ranges for the D722 family, so even if the machine model is your only starting point, the correct fastener is identified before you commit to an order.
A fast shipping replacement only matters if the logistics match the urgency. From our Guangzhou warehouse, DHL and FedEx express services deliver in three to seven days for most international destinations, while air freight covers heavier consolidated shipments in seven to twelve days. Ocean freight remains available at twenty-five to forty days for planned restocking. Tracking numbers are issued the moment the parcel is scanned, so the workshop supervisor can plan the reassembly around a confirmed arrival window rather than guessing [NEED_CITE: international express freight transit benchmarks for machinery parts].
The D722 engine generates repeated tensile spikes on every power stroke, and the connecting rod bolt absorbs that load directly. High-tensile alloy steel, heat-treated to a controlled hardness range, resists the cyclic stretching that causes fatigue failure in inferior fasteners. A bolt that yields even slightly under peak cylinder pressure loses clamping force, allowing the rod cap to shift and bearing shells to hammer out prematurely. This is why the material grade and thermal process are not marketing points β they are the difference between a bolt that holds torque through thousands of combustion cycles and one that requires re-tightening after the first heat-up.
A mismatched connecting rod bolt may thread in and even hold torque during a bench test, yet fail under the thermal expansion of a working engine. The consequence is not just a second teardown β it is potential rod cap displacement, scored crankshaft journals, and a repair bill that dwarfs the original parts cost. I recall a case where a bolt with slightly incorrect head geometry seated against the rod beam, creating a stress concentration that cracked after two hundred hours of field operation. The excavator was back in the shop for a full bottom-end rebuild [NEED_CITE: connecting rod fastener failure modes in small diesel engines].
Our Guangzhou facility stocks this connecting rod bolt alongside the full range of D722 gaskets, seals, and bearing shells, so a one-piece emergency order is treated with the same priority as a pallet shipment. Both our own production lines and qualified sourced supply carry identical QC protocols and the same six-month warranty. Part identification works from a part number, a machine model, or a nameplate photograph β whichever is legible on site. Cross-reference verification covers superseded and alternate numbers, catching errors that copied tables often carry forward. Sample supply is available for fitment confirmation before any bulk commitment is made.
Provide the part number you have, a clear photograph of the machine nameplate, or the engine serial from the D722 data plate. Our team will confirm stock status, compatible fastener specification, and estimated arrival for your destination within the same business cycle. No catalogue browsing required β just send what you can read from the machine.
Q: Is the connecting rod bolt 16851-22140 in stock right now? A: Our Guangzhou warehouse maintains inventory of this bolt for D722 engines. Stock status is confirmed at the moment of inquiry, so send your part number or machine model and receive a real-time availability reply along with dispatch timing for your destination.
Q: What is the minimum quantity I can order? A: One piece. Emergency repairs rarely need a full set, and we do not impose minimum order quantities on fasteners or any other category. Order exactly what the job requires without carrying surplus stock.
Q: How long after ordering will the bolt arrive? A: Express courier services such as DHL or FedEx typically deliver within three to seven days from Guangzhou, depending on destination and customs clearance speed. Air freight takes seven to twelve days, and sea freight twenty-five to forty days for planned shipments.
Q: The nameplate is corroded β how do you confirm the right bolt? A: Send a photograph of whatever identifiers remain: engine casting numbers, model badges, or the old bolt itself next to a measuring tool. Our technical team cross-references against D722 serial ranges and responds with fitment confirmation, usually within hours.
Q: What if the bolt does not match when it arrives? A: Contact us immediately with photos of the received item beside your old bolt. If the mismatch is our error, a correct replacement ships on the next available courier at no additional freight cost, covered under our six-month warranty against supply defects.
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.
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