Porsche Cayman S Fuel Pump for Sale | OEM Used Electric 200 LPH Fuel Pump for the 987 / 981 / 718 Cayman S Chassis Applications
$159.00
At a Glance
- Condition: OEM used, function tested before shipping
- Availability: In stock, Porsche Cayman S fuel pump available
- Shipping: Free shipping to all 50 states, 3 to 7 business days
- Chassis generation verified (987 2005-2012, 981 2013-2016, or 718 2017 plus)
- Engine variant confirmed (3.4L M97 flat-6, 3.4L MA1 flat-6 direct injection, 2.5L turbo flat-4, or 4.0L flat-6 GTS / GT4)
- Pump rated 200 LPH (liters per hour) for the Cayman S fuel demand
- Function tested for flow and pressure at OEM spec
- Electrical connector condition verified
- Fuel inlet and outlet port condition documented
- In-tank module assembly condition assessed (where supplied as complete module)
- Mounting hardware condition checked
- Backed by a 15 day replacement warranty against internal defects
Description
About the Porsche Cayman S Fuel Pump
Looking for a reliable fuel pump for your Porsche Cayman S? Part Nests stocks OEM used Porsche Cayman S fuel pumps for the 987 (2005-2012), 981 (2013-2016), and 718 (2017 plus) chassis generations. The Cayman S fuel pump is an electric in-tank fuel pump rated 200 LPH (liters per hour) to support the fuel demand of the Cayman S engine across the production range. Whether you are replacing a failed pump on a 2008 987 Cayman S with the 3.4L M97 flat-6, completing a fuel system refresh on a 2014 981 Cayman S with the 3.4L MA1 direct-injection flat-6, or sourcing for a 2018 plus 718 Cayman S with the 2.5L turbo flat-4 (or 4.0L flat-6 on GTS / GT4 variants), our inspected used Porsche Cayman S fuel pumps offer correct OEM fitment at substantial savings over Porsche dealer pricing.
Cayman S Chassis Generations
The Porsche Cayman S has evolved across three chassis generations, and the fuel pump configuration varies across them. Critical for ordering: specify your chassis generation and year.
987 Cayman S (2005-2012):
- First-generation Cayman S based on the 987 Boxster platform
- 3.4L M97 flat-6 engine (port injection, naturally aspirated), 295-320 HP depending on year
- Fuel pump: electric in-tank with port-injection-specific flow and pressure
981 Cayman S (2013-2016):
- Second-generation Cayman S based on the 981 Boxster platform
- 3.4L MA1 flat-6 direct injection engine, 325 HP
- Fuel pump: electric in-tank for the higher pressure demand of direct injection (the GDI system uses a high-pressure pump downstream of the in-tank pump for direct-to-cylinder fuel delivery)
718 Cayman S (2017 plus):
- Third-generation Cayman S; renamed “718” referring to Porsche racing heritage
- 2.5L turbo flat-4 engine, 350 HP (the controversial downsizing from flat-6 to flat-4 turbo)
- 4.0L flat-6 engine on 718 Cayman GTS 4.0, 718 Cayman GT4, and 718 Cayman GT4 RS variants, returning the flat-6 to the Cayman lineup
- Fuel pump: electric in-tank optimized for the specific engine variant (turbo flat-4 or naturally aspirated flat-6)
Porsche Cayman Fuel Pump Architecture
All Porsche Cayman S fuel pumps share the basic electric in-tank architecture with some characteristics common to the platform:
- Electric drive for consistent fuel delivery
- 200 LPH (liters per hour) flow rate sized for the Cayman S engine demand
- In-tank module configuration integrated with fuel level sender (in most applications)
- OEM-spec pressure for the specific Porsche engine management system
- High-quality construction consistent with Porsche engineering standards
The 200 LPH flow rate is the standard OEM specification for Cayman S applications, sufficient for both stock operation and modest aftermarket modifications. For significant performance modifications (tuned applications producing 400 plus HP), an aftermarket high-flow pump may be required.
European Sports Coupe / Modern Fuel Pump Architecture Context
The Porsche Cayman S fuel pump (this listing) is the modern European sports coupe electric in-tank fuel pump rated 200 LPH. For complete fuel pump architecture context across our catalog: the modern Porsche Cayman S electric in-tank 200 LPH pump represents the modern European sports car fuel pump architecture, evolved from the 1970s electric pumps to support modern port-injection / direct-injection / GDI fuel systems. The Nissan 280Z fuel pump (our vaz656 listing, the OEM electric fuel pump setup for the 1975-1978 Nissan 280Z with the L28 2.8L SOHC inline-6 and Bosch L-Jetronic electronic fuel injection) is the classic Japanese sports coupe fuel pump representing the late-1970s electric pump architecture that pioneered the transition from carburetors to fuel injection. The Nissan 280Z aluminum-body steel-internals fuel pump (our vaz581 listing, the aftermarket-OEM hybrid construction for the SAME 1975-1978 Nissan 280Z L28 application as vaz656) is the related Nissan 280Z within-batch listing with different pump body construction. The Toyota Crown HPDI fuel pump (our vaz565 listing, the high-pressure direct injection fuel pump for the Toyota Crown sedan applications) is the modern Japanese luxury sedan HPDI fuel pump representing the most current fuel pump architecture for direct-to-cylinder fuel delivery. For broader fuel system context across our catalog, the Chevy Spark fuel gauge / fuel level sender (our vaz378 listing, the fuel level measurement component for the Chevy Spark M300 / M400 / Spark EV BEV) and the Chevy Suburban 3500 gas tank (our vaz426 listing, the fuel tank for the rare 1996-1999 Suburban 3500 heavy-duty 1-ton variant with the 7.4L Vortec L29 V8) are the within-batch Chevy fuel system component listings. Six fuel system component listings across our batch 27 catalog covering different applications and architectures.
Common Porsche Cayman S Fuel Pump Failure Modes
Watch for these symptoms of an impending Cayman S fuel pump failure:
- Engine cranks but does not start, complete pump failure, no fuel delivery
- Engine starts but stalls under load, pump cannot maintain pressure at high fuel demand
- Audible pump whine or growl, bearing wear in the pump motor
- “Check Engine” warning with fuel pressure codes, low fuel pressure detected by the ECU
- Reduced power and rough running, lean conditions from inadequate fuel delivery
- Fuel leak from in-tank module assembly, seal failure on the in-tank module
Porsche Cayman S fuel pump failures often appear gradually before complete failure: intermittent stalling, occasional check-engine lights related to fuel pressure, or audible pump noise are early warning signs.
Why Buy From Part Nests
- Chassis generation verified (987 2005-2012 vs 981 2013-2016 vs 718 2017 plus)
- Engine variant confirmed (3.4L M97 / 3.4L MA1 / 2.5L turbo flat-4 / 4.0L flat-6 GTS / GT4)
- Function tested for flow and pressure at OEM spec
- 200 LPH flow rate confirmed
- Electrical connector condition verified
- In-tank module assembly condition assessed
- Free shipping to all 50 states
- 15 day replacement warranty on defects
- Porsche-experienced support team familiar with the Cayman S evolution
- Call (855) 634-4447 to confirm Porsche Cayman S fuel pump (OEM electric in-tank fuel pump rated 200 LPH liters per hour for the Cayman S engine demand across the production range, the modern European sports coupe fuel pump architecture evolved to support modern port-injection / direct-injection / GDI fuel systems), chassis generation verified (987 2005-2012 first-generation Cayman S based on the 987 Boxster platform with 3.4L M97 flat-6 port injection naturally aspirated 295-320 HP, 981 2013-2016 second-generation Cayman S based on the 981 Boxster platform with 3.4L MA1 flat-6 direct injection 325 HP using high-pressure pump downstream of the in-tank pump for direct-to-cylinder fuel delivery, OR 718 2017 plus third-generation Cayman S renamed referring to Porsche racing heritage with 2.5L turbo flat-4 350 HP the controversial downsizing from flat-6 to flat-4 turbo plus 4.0L flat-6 on 718 Cayman GTS 4.0 / GT4 / GT4 RS variants returning the flat-6 to the Cayman lineup), engine variant confirmed, pump rated 200 LPH liters per hour, function tested for flow and pressure at OEM spec, electrical connector condition verified, fuel inlet and outlet port condition documented, in-tank module assembly condition assessed (where supplied as complete module integrated with fuel level sender), mounting hardware condition checked, the common Porsche Cayman S fuel pump failure modes (engine cranks but does not start complete pump failure, engine starts but stalls under load pump cannot maintain pressure at high fuel demand, audible pump whine or growl bearing wear in the pump motor, Check Engine warning with fuel pressure codes low fuel pressure detected by the ECU, reduced power and rough running lean conditions from inadequate fuel delivery, fuel leak from in-tank module assembly seal failure), and European sports coupe / modern fuel pump architecture context (Nissan 280Z fuel pump per vaz656 the classic Japanese sports coupe fuel pump representing late-1970s electric pump architecture, Nissan 280Z aluminum-body steel-internals fuel pump per vaz581 the within-batch Nissan 280Z variant with different pump body construction, Toyota Crown HPDI fuel pump per vaz565 the modern Japanese luxury sedan HPDI fuel pump for direct-to-cylinder fuel delivery, Chevy Spark fuel gauge / fuel level sender per vaz378 / Chevy Suburban 3500 gas tank per vaz426 within-batch Chevy fuel system components) before ordering
15 Day Replacement Warranty
Every used Porsche Cayman S fuel pump purchased through Part Nests carries a 15 day replacement warranty starting on the delivery date.
What Is Covered
- Internal defects already present when the fuel pump arrives
- Pressure retention failures within 15 days from installation (where pressure was confirmed at shipping)
- Flow rate failures within 15 days from installation (where flow was confirmed at shipping)
- Pump motor failures within 15 days from installation
- Pump element failures within 15 days from installation
- Electrical connector failures within 15 days from installation
- In-tank module seal failures within 15 days from installation
- Incorrect chassis generation shipped (987 vs 981 vs 718 mismatch where chassis was documented) due to an error on our end
- Incorrect engine variant shipped (3.4L M97 vs 3.4L MA1 vs 2.5L turbo vs 4.0L flat-6 mismatch where engine was documented) due to an error on our end
What Is Not Covered
- Damage caused during installation
- Damage from contaminated fuel (water, debris, ethanol degradation)
- Damage from incorrect fuel (Porsche specifies premium 91 plus octane gasoline for Cayman S applications; using lower octane causes detonation and fuel system stress)
- Damage from running tank consistently empty (fuel pumps are cooled by fuel; running empty causes accelerated wear)
- Damage from aftermarket performance modifications exceeding the 200 LPH OEM flow capacity (significant tuning producing 400 plus HP requires aftermarket high-flow pumps)
- Damage from incorrect fuel pressure regulator setting
- Damage from age-related wiring harness failures external to the pump connector
- Damage from cross-application (987 fuel pump installed in 981 or 718 where chassis was documented; Cayman S fuel pumps are NOT interchangeable across chassis generations)
- External components (fuel filter, fuel pressure regulator, fuel lines, fuel rail, fuel injectors, high-pressure pump on direct injection variants, fuel tank, wiring harness external to pump connector) unless itemized
- Labor expenses of any kind
To start a warranty claim, reach us within 15 days of delivery at (855) 634-4447.
- Function Tested Before Shipping: Flow and pressure verified at 200 LPH OEM spec
- Chassis Generation Verified: 987 2005-2012 vs 981 2013-2016 vs 718 2017 plus
- Engine Variant Confirmed: 3.4L M97 / 3.4L MA1 / 2.5L turbo / 4.0L flat-6
- Electrical Connector Condition Verified: Porsche-specific connector compatibility
- In-Tank Module Assembly Condition Assessed: Integrated with fuel level sender
- 15 Day Replacement Cover: Defects protected from delivery onward (call (855) 634-4447 for claims)
Additional information
| Part Type | Electric In Tank Fuel Pump |
|---|---|
| Vehicle Application | Porsche Cayman S |
| Year Confirmed | 2005 |
| Generation | 987.1 |
| Engine | M97/21 3.4L flat six |
| Material | High grade metal and composite components |
| Flow Rate | 200 to 250 LPH |
| Pressure | 3 to 5 bar |
| Voltage | 12V |
| Weight | 1.2 lbs |
| SKU | vaz578 |
OEM electric in-tank fuel pump rated 200 LPH for the Cayman S engine demand. The Porsche Cayman S fuel pump is an electric in-tank fuel pump rated 200 LPH (liters per hour) to support the fuel demand of the Cayman S engine across the production range. Modern European sports coupe fuel pump architecture, evolved to support modern port-injection / direct-injection / GDI fuel systems. Features: electric drive for consistent fuel delivery, 200 LPH flow rate sized for the Cayman S engine demand, in-tank module configuration integrated with fuel level sender (in most applications), OEM-spec pressure for the specific Porsche engine management system, high-quality construction consistent with Porsche engineering standards. The 200 LPH flow rate is the standard OEM specification for Cayman S applications, sufficient for both stock operation and modest aftermarket modifications. For significant performance modifications (tuned applications producing 400 plus HP), an aftermarket high-flow pump may be required.
Three Cayman S chassis generations across 2005-current production. The Porsche Cayman S has evolved across three chassis generations, and the fuel pump configuration varies across them. 987 Cayman S (2005-2012): first-generation Cayman S based on the 987 Boxster platform, 3.4L M97 flat-6 engine (port injection, naturally aspirated), 295-320 HP depending on year. 981 Cayman S (2013-2016): second-generation Cayman S based on the 981 Boxster platform, 3.4L MA1 flat-6 direct injection engine, 325 HP, fuel pump is electric in-tank for the higher pressure demand of direct injection (the GDI system uses a high-pressure pump downstream of the in-tank pump for direct-to-cylinder fuel delivery). 718 Cayman S (2017 plus): third-generation Cayman S, renamed '718' referring to Porsche racing heritage, 2.5L turbo flat-4 engine 350 HP (the controversial downsizing from flat-6 to flat-4 turbo), 4.0L flat-6 engine on 718 Cayman GTS 4.0 / 718 Cayman GT4 / 718 Cayman GT4 RS variants returning the flat-6 to the Cayman lineup. Critical for ordering: specify your chassis generation and year.
Six common failure modes buyers should understand. Engine cranks but does not start (complete pump failure, no fuel delivery). Engine starts but stalls under load (pump cannot maintain pressure at high fuel demand). Audible pump whine or growl (bearing wear in the pump motor). 'Check Engine' warning with fuel pressure codes (low fuel pressure detected by the ECU). Reduced power and rough running (lean conditions from inadequate fuel delivery). Fuel leak from in-tank module assembly (seal failure on the in-tank module). Porsche Cayman S fuel pump failures often appear gradually before complete failure: intermittent stalling, occasional check-engine lights related to fuel pressure, or audible pump noise are early warning signs. Addressing the pump at the first signs of failure prevents the more disruptive consequences of complete failure (stranded vehicle, towing required).
Multiple fuel pump architectures across vehicle classes and eras. The Porsche Cayman S fuel pump (this listing) is the modern European sports coupe electric in-tank fuel pump rated 200 LPH, representing modern fuel pump architecture for port-injection / direct-injection / GDI fuel systems. The Nissan 280Z fuel pump per vaz656 is the classic Japanese sports coupe fuel pump (OEM electric fuel pump setup for the 1975-1978 Nissan 280Z with the L28 2.8L SOHC inline-6 and Bosch L-Jetronic electronic fuel injection, representing the late-1970s electric pump architecture that pioneered the transition from carburetors to fuel injection). The Nissan 280Z aluminum-body steel-internals fuel pump per vaz581 is the related Nissan 280Z within-batch listing with different pump body construction (aftermarket-OEM hybrid for the SAME 1975-1978 Nissan 280Z L28 application as vaz656). The Toyota Crown HPDI fuel pump per vaz565 is the modern Japanese luxury sedan HPDI fuel pump representing the most current fuel pump architecture for direct-to-cylinder fuel delivery. The Chevy Spark fuel gauge / fuel level sender per vaz378 and the Chevy Suburban 3500 gas tank per vaz426 are the within-batch Chevy fuel system component listings.
The 2.5L turbo flat-4 replaced the legendary flat-6 in non-GTS / GT4 variants. The 718 Cayman S (2017 plus, third-generation Cayman S renamed '718' referring to Porsche racing heritage) introduced the 2.5L turbo flat-4 engine producing 350 HP. This was controversial among Porsche enthusiasts because the original Cayman platform (987 2005-2012 and 981 2013-2016) had always used the legendary flat-6 engine that defined the Porsche character (the high-revving naturally aspirated flat-6 sound). The turbo flat-4 in the 718 produces more torque at lower RPMs but lacks the distinctive flat-6 character and high-RPM wail. In response to enthusiast feedback, Porsche returned the flat-6 to the Cayman lineup with the 4.0L flat-6 engine on the 718 Cayman GTS 4.0, 718 Cayman GT4, and 718 Cayman GT4 RS variants. These flat-6 variants are highly sought after by enthusiasts who prefer the traditional Porsche character over the turbo flat-4. When ordering a 718 Cayman S fuel pump, specify whether your application is the 2.5L turbo flat-4 or one of the 4.0L flat-6 GTS / GT4 variants.
Sufficient for stock and modest mods, NOT for high-output tuned applications. The 200 LPH flow rate is the standard OEM specification for Cayman S applications, sufficient for both stock operation and modest aftermarket modifications (Stage 1 / Stage 2 tunes typically producing 350-400 HP). For significant performance modifications (tuned applications producing 400 plus HP, particularly turbo-conversion or supercharger applications, or built-engine high-output applications), an aftermarket high-flow pump may be required. Common aftermarket high-flow pump options from Porsche performance specialists provide 250-300 LPH flow rates for higher fuel demand. When planning a significant performance build, calculate your fuel demand based on target horsepower and compare to the pump flow rate to verify adequate fuel delivery. Insufficient fuel pump flow causes lean conditions that damage engines under boost or high-load conditions.
Premium 91 plus octane gasoline as Porsche specifies. Porsche specifies premium 91 plus octane gasoline for Cayman S applications. Using lower octane (87 or 89 octane regular / mid-grade) causes detonation and fuel system stress that can damage engines and accelerate fuel pump wear. The 3.4L MA1 direct-injection flat-6 (981 Cayman S) and the 2.5L turbo flat-4 (718 Cayman S non-GTS / non-GT4) are particularly sensitive to fuel octane due to their higher compression / turbocharged operation. The 3.4L M97 port-injection flat-6 (987 Cayman S) and the 4.0L flat-6 (718 Cayman GTS / GT4 / GT4 RS) also benefit from premium fuel for proper operation. For California / select state markets where ethanol-blended fuel is mandated, Porsche-approved ethanol fuel compatibility applies. Track day enthusiasts should consider using race-grade fuel (98 plus octane) for high-temperature high-load track operation to minimize detonation risk.
No. There is no core return required.
2 reviews for Porsche Cayman S Fuel Pump for Sale | OEM Used Electric 200 LPH Fuel Pump for the 987 / 981 / 718 Cayman S Chassis Applications
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Sebastian H. –
Got a Porsche Cayman S fuel pump for a 2014 981 Cayman S with 3.4L MA1 direct-injection flat-6 replacement (within the 981 chassis generation 2013-2016, second-generation Cayman S based on the 981 Boxster platform with 3.4L MA1 flat-6 direct injection 325 HP using high-pressure pump downstream of the in-tank pump for direct-to-cylinder fuel delivery). Chassis generation verified as 981 2013-2016 (NOT the 987 2005-2012 first-generation Cayman S with 3.4L M97 flat-6 port injection, NOT the 718 2017 plus third-generation Cayman S with 2.5L turbo flat-4 or 4.0L flat-6 GTS / GT4 variants), engine variant confirmed as 3.4L MA1 flat-6 direct injection 325 HP, pump rated 200 LPH for the Cayman S engine demand, function tested for flow and pressure at OEM spec, electrical connector condition verified for Porsche-specific compatibility, fuel inlet and outlet port condition documented, in-tank module assembly condition assessed integrated with fuel level sender, mounting hardware condition checked. Honest pre-purchase information about the European sports coupe / modern fuel pump architecture context (Nissan 280Z fuel pump per vaz656 the classic Japanese sports coupe fuel pump representing late-1970s electric pump architecture pioneering the transition from carburetors to fuel injection, Nissan 280Z aluminum-body steel-internals fuel pump per vaz581 the within-batch Nissan 280Z variant with different pump body construction, Toyota Crown HPDI fuel pump per vaz565 the modern Japanese luxury sedan HPDI fuel pump for direct-to-cylinder fuel delivery, Chevy Spark fuel gauge / fuel level sender per vaz378 / Chevy Suburban 3500 gas tank per vaz426 within-batch Chevy fuel system components).
Theodore P. –
Sourced a Porsche Cayman S fuel pump for a 2019 718 Cayman GT4 with 4.0L flat-6 (the 718 Cayman GT4 variant with the 4.0L flat-6 engine, one of the 718 variants returning the flat-6 to the Cayman lineup along with the 718 Cayman GTS 4.0 and 718 Cayman GT4 RS in response to enthusiast feedback about the controversial flat-4 turbo downsizing). Chassis generation verified as 718 2017 plus, engine variant confirmed as 4.0L flat-6 GT4 variant (NOT the 2.5L turbo flat-4 non-GTS / non-GT4 variant), pump rated 200 LPH, function tested at OEM spec. Honest pre-purchase information about the controversial 718 flat-4 vs flat-6 distinction (the 2.5L turbo flat-4 was controversial among Porsche enthusiasts because the original Cayman platform 987 / 981 had always used the legendary flat-6 engine, Porsche returned the flat-6 to the Cayman lineup with the 4.0L flat-6 GTS 4.0 / GT4 / GT4 RS variants which are highly sought after) and the premium 91 plus octane fuel requirement (lower octane causes detonation and fuel system stress, the direct-injection and turbocharged variants are particularly sensitive to fuel octane).