Rocker Arm Assembly 3052170 3047479 | In Stock for Cummins NT855 N14

Single-piece dispatch — rocker arm assemblies for Cummins and John Deere engines sit on the shelf in Guangzhou, tagged and ready to leave within hours of order confirmation.

Technical Specifications

Application Suitability

What Keeps the Machine Down After the Part Arrives

The bottleneck is usually confirmation, not the part itself.

A workshop supervisor sends a blurry nameplate photo at 2 a.m. because the machine quit mid-shift. Waiting two days for a supplier to reply means the haul truck sits idle, blocking the ramp. [NEED_CITE: typical cost of unplanned downtime in surface mining operations] I once spent an hour cross-checking a worn Cummins NT855 serial plate against engine build records before releasing a rocker arm assembly — and that extra hour saved the customer from receiving a part that would not fit the NTA855A variant sitting on their bench.

When a Rocker Arm Assembly 3052170 3047479 in stock is what you need, the clock starts the moment you send the inquiry. Our response window stays within 24 hours on weekdays, often far shorter, because the Guangzhou warehouse team can walk the shelf and confirm the bin count before replying.

How We Confirm the Right Unit Before It Ships

Part numbers alone do not always tell the full story. The same base casting can carry different rocker tip geometries or shaft bore diameters across Cummins N14 and NH855 production runs. When you provide the engine serial number or even a close-up photograph of the old rocker arm, our technical team matches it against the build sheet rather than relying on a generic interchange table. This is how a Rocker Arm Assembly 3052170 3047479 in stock actually reaches the correct engine.

Arrival Timing Depends on the Freight Decision You Make Today

Express courier typically delivers in 3–7 days to most Middle East and African destinations. Air freight covers 7–12 days for larger consolidated shipments. Sea freight runs 25–40 days and makes sense only when the machine is not yet down. We quote the estimated arrival date at the same time we confirm the Rocker Arm Assembly 3052170 3047479 in stock, so you can decide whether paying the courier premium is worth getting the excavator running before the weekend. [NEED_CITE: international express courier transit time benchmarks for heavy equipment parts]

Forged 42CrMo Steel and Phosphated Surface — What That Means at the Valve Train

The 42CrMo alloy steel forging gives the rocker arm the fatigue strength to handle repeated impact loading from the cam lobe through thousands of cycles per minute. A softer material would deform at the adjuster screw contact point, altering valve lash within weeks. The phosphated finish provides short-term corrosion protection during storage and initial run-in, and it also acts as a mild break-in lubricant between the rocker bore and the shaft. These two specifications together address the two most common failure modes: fatigue cracking near the fulcrum and galling on the shaft interface.

Why ISO 9001 and SAE J2412 Matter for a Single Replacement Arm

ISO 9001 governs the process controls — incoming material inspection, dimensional checks after forging, and final assembly verification. SAE J2412 sets the accelerated corrosion testing standard that validates surface treatment performance. Together they ensure that the Rocker Arm Assembly 3052170 3047479 in stock you receive meets the same lot-to-lot consistency requirements that fleet maintenance planners depend on when scheduling valve train overhauls.

The Real Cost of a Wrong Part Sitting on Your Bench

Ordering a rocker arm that does not fit means the valve cover stays off, the machine stays down, and a return shipment has to be arranged while the crew waits. In mining and port operations, a single idle haul truck or loader can cascade into missed shift targets. [NEED_CITE: impact of parts misidentification on equipment availability in heavy industry] The loss is never just the courier fee for the replacement — it is the hours billed to a machine that could not work.

Why Buyers Come Back for the Next Emergency

Own-production lines and qualified sourced supply share one account and one six-month warranty, so you do not manage separate claim channels. Eight product categories ship under one commercial invoice, cutting clearance paperwork when a job requires rockers plus gaskets plus seal kits. The one-piece minimum means you order exactly what the repair demands. Guangzhou warehouse stock allows same-day dispatch on common Cummins and John Deere references. Identification from a photograph or worn nameplate eliminates the guesswork that causes wrong shipments in the first place.

Documentation & Verification

• Commercial invoice listing 3052170 and 3047479 with HS code for customs clearance
• Cross-reference sheet mapping superseded numbers, marked reference only
• Dimensional inspection record covering shaft bore and rocker tip radius
• Six-month warranty terms included with every shipment regardless of order size
• Packing photographs sent before dispatch showing part condition and labeling
• Export carton markings matched to your warehouse receiving procedure

Stock, Shipping & Arrival

• Guangzhou shelf stock confirmed bin-by-bin before order acceptance
• Express courier 3–7 days for single-piece emergency Rocker Arm Assembly 3052170 3047479 shipments
• Air freight consolidation available when combining multiple urgent SKUs
• Real-time tracking number issued the same day the parcel is handed to the carrier
• Arrival date quoted at inquiry stage based on your destination and chosen method

Send the Engine Serial or a Clear Nameplate Photo

Provide the Cummins or John Deere engine serial number, or upload a photo of the existing rocker arm and the machine data plate. We will confirm whether the Rocker Arm Assembly 3052170 3047479 in stock matches your exact build variant, quote the arrival date to your site, and have the part on a truck or plane the same day you approve.

Frequently Asked Questions

Q: Is this rocker arm assembly currently in stock and ready to ship? A: Yes. The Guangzhou warehouse keeps Rocker Arm Assembly 3052170 3047479 in stock for Cummins NT855, N14, NH855, and John Deere 6810 and 6910 applications. We confirm live shelf count at the time of your inquiry, so you receive an accurate ship date rather than an estimate.

Q: Can I order just one piece for an emergency repair? A: Absolutely. The minimum order is one piece. You will not be forced into a bulk purchase when a single machine is down. The six-month warranty applies whether you buy one unit or one hundred, and the same documentation ships with every order.

Q: How long will delivery take to my location? A: Express courier reaches most destinations in 3–7 days, air freight in 7–12 days, and sea freight in 25–40 days. We quote the estimated arrival date when we confirm stock, so you can weigh cost against urgency before committing.

Q: My nameplate is worn or painted over — can you identify the correct part from a photo? A: Yes. Send a clear photograph of the old rocker arm and any visible engine markings. Our technical team cross-checks the image against engine build records and variant tables to confirm fitment before shipping, reducing the risk of a wrong part reaching your site.

Q: What happens if the part arrives and does not fit? A: Contact us immediately with photos of the received part and the fitment issue. If the mismatch resulted from our identification error, we dispatch a replacement at no extra freight cost and arrange return of the incorrect unit under the warranty terms.