BMW part number 11 51 7 527 799 (11517527799) is the Coolant pump, mechanical, a cooling part catalogued for the E36 (320i, 325i, 325is), E34 (520i, 525i, 525ix), E39 (520i, 523i, 528i), E38 (728i, 728iL), E36/7 (Z3 M3.2, Z3 2.8). As of our last check (2026-10-08, bmwpartsdeal.com), it is still available new from BMW. 1 kit or reman option, 3 repair guides below.
Listed as orderable new at bmwpartsdeal.com when checked.
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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Listed directly for E36 and E34 and E39 and E38 and E36/7 in our data (see Fits). Models below are other listings of the same number.
Same BMW part number, but the source list is truncated or market-specific. More models may apply.
+5 more models not listed by the source.
bmwpartsdeal vehicle fitment (lists cut off after ~10 models)
No forum workaround recorded yet. If you know a thread, the hunt team wants to hear about it.
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.
Owner-written M52 water pump swap for the E36 with photos: fan and clutch off, belt and pulley off, pump pulled (with two M6 jacking screws if it sticks), O-ring lubed with coolant and the light pump-nut torque observed.
Tools mentioned: 32 mm fan wrench, 10 mm deep socket, two M6 extraction screws, low-range torque wrench
Step list for swapping the early plastic-impeller pump on E36 sixes: fan off, belt tensioner released, pulley and pump nuts off, pump jacked out with M6 bolts, impeller debris cleared, new pump fitted with a lubed O-ring.
Tools mentioned: 10 mm socket, M6 bolts, breaker bar for tensioner
Cooling-overhaul style DIY for E39 525i/528i/530i: thermostat housing off, pump driven out with two M6 bolts, then pump, pulley and housing refitted in a criss-cross pattern; includes a video and a parts list. Not difficult, but many steps.
Tools mentioned: Sockets, two 10 mm/M6 bolts, torque wrench, drain pan
Coolant temperature sensor 13621433077 is in the article's parts list (plugs into the thermostat housing).
Listed $188.61 on bmwpartsdeal.
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