The GSR M52TU/M54 Four Bolt Oil Pump Shaft is the ultimate piece of engine insurance for your non-M E46, Z3/Z4 or any other M52TU/M54-powered BMW.
Whether your car is a race car, dual-duty street/track car, or you simply enjoy spirited high-performance driving, your stock oil pump shaft is at risk for failure.The factory oil pump nut can back off, and the shaft has a known history of breaking at high RPM. Either of of these failures would quickly lead to oil starvation, leaving your engine as nothing but a very large and expensive multi-piece paperweight.
GSR’s M52TU/M54 Four Bolt Oil Pump Shaft replaces the failure-prone single-nut OEM sprocket retaining system on the M52TU/M54 engine. The replacement shaft is precision ground, machined, and hardened for superior wear characteristics and resistance to shear failure. The four-bolt mounting system prevents the pump nut from becoming loose and backing off. This package is far superior to welded or safety-wired versions of stock parts, or a single-fastener replacement.Kit includes new pump shaft, sprocket, and inner rotor. Fully assembled – no pressing required.
Note: M52TU engines are updated, dual VANOS equipped M52 units built in 1998-2000 and were only available in the E46 & Z3 chassis. These pump upgrades are compatible with OE part number 11 41 7 501 568. This upgrade is NOT compatible with the M52 engines from an E36 chassis.
$300 core charge is automatically added and will be refunded upon receipt of your rebuild-able core. Core MUST be received within two weeks of delivery of replacement unit. You may send your old cap before ordering to avoid the core charge.Core return instructions: We only need the oil pump cap (click for photo), which is the cast aluminum piece between the sprocket and inner rotor. Please do not send your entire pump.
Morehead Speed Works
ATTN: GSR Pump – Order #_____
347 Riverchase Way
Lexington, SC 29072