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Porsche specialists based in the UK
Porsche 911 & 912 (1965-1989) 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F) Gearbox / Transmission Gearbox Parts

Oil Pump

Oil Pump

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Gearbox oil pump cover plate. Porsche 911 2.7 RS / RSR - 91530703300
3
Gearbox oil pump cover plate. Porsche 911 2.7 RS / RSR
9153073032R/1
Product Information
Product Information

OE Match gearbox oil pump cover plate for Porsche 911 2.7 RS / RSR race applications using the five-speed 915 transmission. 

Fits

  • Porsche 911 2.7 RS / RSR Race car
    For 915 race (5 speed) gearbox

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

Legacy replacement note: This item replaces diagram ref no 10

What This Product Does

This plate forms the cover of the gearbox oil pump assembly. It is a pump-related component rather than a complete transmission or a replacement for the gearbox's gears, selectors or synchronisers.

Functions

  • Covers the transmission oil pump assembly.
  • Provides the lid assembly with its bearing sleeve.

Technical Details

  • Brand: OE Match.
  • Supplied diagram part reference: 91530703300.
  • Assembly description: oil pump lid complete with bearing sleeve.
  • Transmission application: five-speed 915 race gearbox.
  • Diagram application: 911 CARRERA 2.7, 1972 onwards; G >> 783 0870.

Symptoms of Fault

Oil leakage around the pump-cover joint warrants inspection of the cover, sealing surfaces and associated seals. Gearbox noise or difficult selection can have several causes and does not, by itself, establish that this plate needs replacement.

Why Replacement Matters

Renewal may be appropriate when inspection during repair or restoration identifies damage to the cover or its bearing sleeve. Check the adjoining housing, sealing components and fixings at the same time, rather than assuming that replacing the plate alone will resolve a leak or transmission fault.

FAQs

  • Does the vehicle listing confirm compatibility with every gearbox?
    No. Confirm the actual transmission specification against the stated 915 race application, particularly on modified or competition cars.
  • Which diagram reference applies?
    The supplied assembly data lists item 11 in diagram 302-30. The retained legacy replacement note refers separately to diagram reference 10.


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Related, superseded, cross reference or alternative numbers for comparison.

9153073032R
91530703300

The product you are viewing cross references to these numbers
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About Oil Pump

Porsche Gearbox Oil Pumps | Reliable Lubrication for Transmission Longevity

The gearbox oil pump plays a critical role in ensuring continuous lubrication and cooling within your Porsche’s transmission system. By circulating gearbox oil under pressure, it prevents friction, heat build-up, and premature wear of gears, bearings, and synchroniser components. A properly functioning oil pump is essential for maintaining smooth shifting, efficient torque transfer, and long-term transmission reliability.

At Design911, we supply precision-engineered gearbox oil pumps designed to meet or exceed original performance specifications. Each pump is crafted from durable, heat-resistant materials and tested for flow consistency, ensuring optimum lubrication under all driving conditions.

Whether you’re servicing a manual or PDK transmission, rebuilding a gearbox, or replacing a worn component, our Porsche gearbox oil pumps guarantee smooth operation and protection for high-performance drivetrains.

What Do Gearbox Oil Pumps Do?

Gearbox oil pumps ensure that vital internal components receive a constant supply of clean, pressurised oil — reducing friction and preventing overheating during gear changes and extended driving.

Core Functions:

  • Circulate and pressurise gearbox oil for internal lubrication.
  • Distribute oil to gears, shafts, and synchronisers for smooth operation.
  • Remove heat generated by friction within the transmission.
  • Maintain consistent oil pressure under varying RPM and load.
  • Enhance the overall longevity and efficiency of the gearbox.

Without a properly functioning oil pump, vital moving parts are left unprotected, leading to friction, noise, and eventual gearbox damage.

Why Do Gearbox Oil Pumps Fail or Wear Out?

Gearbox oil pumps operate under continuous mechanical stress, heat, and fluid pressure. Over time, normal wear and contamination can reduce their performance and reliability.

Common Causes of Failure Include:

  • Oil contamination from metal particles or sludge.
  • Worn gears or rotors reducing oil flow efficiency.
  • Clogged oil passages restricting lubrication.
  • Seal failure causing internal pressure loss.
  • Excessive heat or poor-quality gearbox oil degrading pump components.

When a pump fails, symptoms include gearbox noise, difficulty shifting, overheating, or visible oil leaks — all of which signal the need for immediate replacement.

Why Replace Your Porsche Gearbox Oil Pump?

Replacing a worn or underperforming gearbox oil pump restores optimal lubrication, prevents overheating, and ensures consistent transmission performance. Performance-focused pumps also deliver higher flow rates, ideal for motorsport or heavy-duty applications.

Key Benefits:

  • Restores full gearbox lubrication and cooling efficiency.
  • Prevents friction damage, wear, and oil starvation.
  • Improves shifting smoothness and thermal stability.
  • Extends transmission and bearing lifespan.
  • Manufactured with precision for long-term reliability.
  • Compatible with Porsche manual, automatic, and PDK transmissions.

Replacing the oil pump during gearbox rebuilds is highly recommended to ensure even lubrication and protect new or refurbished components.

Highlights

  • Precision-engineered Porsche gearbox oil pumps.
  • Maintains consistent oil pressure and flow rate.
  • Prevents heat build-up and component wear.
  • Ideal for rebuilds, servicing, or performance upgrades.
  • Designed for Porsche 911, Cayman, Boxster, Panamera, and more.
  • Reliable, durable, and engineered for high-performance applications.

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