Transmission pinion shaft lock nut. Porsche 911 / 924 M 24 X 1,5 › 91530228200

OE Match transmission pinion shaft lock nut for Porsche 911 1972–86 and the specified Porsche 924 manual gearbox applications. Identified as a collar nut in the assembly information, it has an M 24 X 1,5 thread.

Fits

• Porsche 911 1972-86
  Manual transmission
• 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• 911 1984-1986 3.2L
• 911 1978-1983 3.0L / SC
• 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 924 1976–79: five-speed transmission, gear wheel sets, model ' J.. ', VA
• Porsche 924 TURBO / GT 1980–1985: manual transmission G31.01/02/03

Diagram Ref No 51

What This Product Does
This threaded retaining component secures the transmission pinion shaft assembly. It is locking hardware, not a gasket or shaft seal, and does not repair lubricant leaks.

Functions

• Provides threaded retention within the specified gearbox assembly.
• Supports reassembly when the existing retaining nut needs renewal.

Technical Details

• Part number: 91530228200.
• Assembly description: collar nut.
• Thread specification: M 24 X 1,5.
• Transmission applications include the diagram-listed four-speed and five-speed 911 assemblies and specified 924 gearboxes.

Symptoms of Fault
Loose locking hardware can contribute to rattling or internal transmission problems. Whining, grinding or difficult gear selection are not proof of a faulty nut: bearings, synchronisers, the clutch and selector linkage may also require investigation.

Why Replacement Matters
Renewing unsuitable or damaged retaining hardware supports correct gearbox reassembly. Inspect the adjoining components and follow the workshop procedure for the exact transmission, including its tightening and locking requirements.

FAQs

• Can the original nut be reused?
  Check the transmission workshop instructions. Many locking fasteners require replacement after removal; do not assume reuse is permitted.
• Will this stop a gearbox oil leak?
  No. Identify the leaking seal, gasket or joint separately.
• What should I check before selecting it?
  Compare part number 91530228200, the thread specification and the transmission identification with the original assembly.

Check fitment for your specific vehicle (model, year, engine) before ordering.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91530228200

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