BMW part number 11 51 7 531 859 (11517531859) is the Coolant pump, mechanical, a cooling part catalogued for the E65 (740i, 750i), E66 (740Li, 750Li), E60 (540i, 550i), E63 (650i), E64 (650i), E70 (X5 4.8i) and 1 more chassis. As of our last check (2026-10-08, bmwpartsdeal.com), it has been superseded by 11517586779. 1 repair guide below.
Replaced by 11517586779. Order the newer number.
No sourced aftermarket equivalent recorded yet. We only list brand numbers that a brand catalog or vendor page explicitly cross-references to this BMW number.
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Older numbers on the left, newest on the right. Numbers without a record open a lookup.
No interchange recorded. That doesn't prove there isn't one; it means we have no sourced match yet.
Listed directly for E65 and E66 and E60 and E63 and E64 and E70 and E61 in our data (see Fits). Models below are other listings of the same number.
No forum workaround recorded yet. If you know a thread, the hunt team wants to hear about it.
No kit or reman service recorded yet.
No DIY route recorded yet.
Write-ups and videos from owners, forums and specialists on removing and fitting this part. Summaries are ours; follow the link for the full steps, photos and torque values, and credit goes to the original author.
N62 V8 water pump swap: intake boot and engine cover off, drive belts loosened, thermostat and hoses unclipped (about half a gallon of coolant lost), pulley bolts and pump bolts out, then refill and bleed.
Tools mentioned: T27 Torx, small flat screwdriver or pick, sockets, drain pan
Successor 11517586779 listed at $219.45 on bmwpartsdeal (InStock).
Live eBay listings are coming soon. Until then, search eBay directly for this number with the links below.