Description

Sandvik 77794205 hydraulic piston pump: an “old” part number and how to buy it safely Search for this pump and you’ll see prices from about $750 to $3,500, all for what looks like the same thing. Some listings call the number old. One site even lists it for something that isn’t a pump at all. If you need the Sandvik 77794205 hydraulic piston pump, those differences are the real problem, not the number. Advance Hydraulic Works imports and trades hydraulic pumps from Delhi NCR, and this is how we’d sort the listings with you. What is the Sandvik 77794205? One provider lists it as a hydraulic piston pump from Sandvik, model 77794205, with a second reference, R902413977, a serial variety, and a used condition. That second reference matters. It’s in the style of a pump maker’s own material number, which hints that the pump was built by a specialist and sold under Sandvik’s number. That’s a reading of the listings, not a confirmed fact, so verify it with the nameplate. Sandvik 77794205 hydraulic pump: why some sellers call it “old” A parts supplier describes the number as an older reference used in the DT720, DT820, DD311-40 and DL331-5C. Other listings pair it with 55059177 for a longer list of drill rigs. So the Sandvik 77794205 may have been replaced by a newer number that covers the same job. “Old” doesn’t mean unusable. It means you must check what replaced it and whether the new number is a drop-in match. Don’t assume, and don’t let a seller assume for you. Sandvik 77794205 hydraulic piston pump: the price and condition spread Here’s what public listings show: • A used unit on eBay at US $2,880 or best offer. • A used unit at a trading site for $2,500, with one in stock. • A listing marked down to $3,500 from $3,999. • A marketplace listing from a Chinese seller at 752 USD. That’s roughly a 4.6 times gap between the lowest and highest. These are US-dollar listings from overseas sellers, before Indian duties and freight, so they aren’t your price. But the gap tells you something. The cheapest listing is almost certainly not the same product as a used original, and you need to know what it is. Watch out: the same number on something else One listing shows the same string as a DCS controller module, listed as discontinued. That’s an electronics item, not a pump. It’s a reminder that a number alone proves nothing. Always check the description, photos and nameplate, not just the part number. The method: number, second number, plate, condition Number. Confirm the Sandvik 77794205 and note every related number, such as 55059177 and R902413977. Second number. Ask the seller what R902413977 refers to and whether or not it matches your pump’s plate. Plate. Photograph your antique pump’s nameplate and compare each code. Condition. Ask whether it’s new, rebuilt, used or aftermarket, and who gives the warranty. A worked example Say you hold two quotes. One is $752 and the other is $2,500. Ask three questions of each: is it the same pump with the same second number, what’s the condition, and what’s the source? If the cheaper one is a new aftermarket unit built to match, it may be a fair deal. If it’s an unknown unit with no plate photo, it could be a gamble. The difference between the two is $1,748, which is a lot to save and a lot to lose. If the cheaper pump fails and you lose three days of drilling, the saving disappears fast. This is an illustrative comparison with overseas prices, not a quote. Implementation steps 1. Photograph the antique pump, its nameplate and any tags before removal. 2. Write down every wide variety you could locate, such as any beginning with R9. 3. Note the machine model, serial number, pressure and rotation direction. 4. Send everything to Advance Hydraulic Works and ask about availability. 5. Ask the seller to state condition, source and warranty in writing. 6. Ask for photos of the actual unit’s nameplate. 7. Compare the delivered pump’s plate with your old one before fitting. 8. Flush the system, fit the pump, prime it and start at low pressure. The usual mistakes are trusting a number without a plate photo, assuming “old” numbers have drop-in replacements and picking the lowest price without asking what it is. FAQs What is the Sandvik 77794205? It’s a Sandvik part number listed by sellers for a hydraulic piston pump, often with a second reference starting R9. Listings link it to several drill rigs. Is the Sandvik 77794205 hydraulic pump discontinued? One seller calls it an older number used in several machines. Ask the seller what replaced it and show the cross-reference in writing. Why does the Sandvik 77794205 hydraulic piston pump cost so much more in some listings? Condition, source, warranty and whether it’s original or aftermarket all change the price.Compare like with like. Can Advance Hydraulic Works supply a Sandvik 77794205 hydraulic pump? Send the system details, component numbers and nameplate photos to Advance Hydraulic Works and ask approximately availability, supply and guarantee before you dedicate. How do I avoid a wrong match? Check your pump’s own nameplate against the listing, and make the seller state the second reference number and the machine list. Your next step Photograph the nameplate, list every number on the pump and send them to Advance Hydraulic Works. You’ll know what you’re buying before you spend anything.