Gen II Stealth Fuel Tank, 65-67 Pontiac GTO / 66-67 Lemans

Gen II Stealth Fuel Tank, 65-67 Pontiac GTO / 66-67 Lemans

Part Number: 18121
Skip to product information

Product Info

P/N 18121: '65-'67 Pontiac GTO & '66-'67 Lemans
With Stealth 200 pump and 0-90 ohm sending unit

  • Perfect for EFI and carbureted engines

  • OEM appearance and 21.5-gallon capacity

  • High flow, quiet 200 or 340 Stealth fuel pump

  • 0-90 Ohm fuel level sending unit included

  • Billet hat with ORB-06 outlet and return ports

  • Utilizes OEM fuel outlet location and seal

  • Featuring patented, award-winning Phantom Baffle technology for superior fuel slosh control

  • Plug-and-play; comes pre-assembled with pump and sending unit in the tank, ready for install

  • Utilizes stock mounting straps, filler cap and vent

  • This product is not legal for sale or use on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications.


P/N 18121 - 200lph Stealth Gen II Tank Application Specs:

  • Fuel Injected Engines (gasoline):

    • Up to 600 HP – naturally aspirated.

    • Up to 450 HP – forced air induction.



  • Carbureted Engines (gasoline):

    • Up to 750 HP – naturally aspirated.

    • Up to 600 HP – forced air induction.




P/N 18421 - 340lph Stealth Gen II Tank Application Specs:

  • Fuel Injected Engines:

    • Gasoline: up to 850 HP – naturally aspirated.

    • Gasoline: up to 700 HP – forced air induction.

    • E85: up to 595 HP – naturally aspirated.

    • E85: up to 490 HP – forced air induction.



  • Carbureted Engines:

    • Gasoline: up to 1000 HP – naturally aspirated.

    • Gasoline: up to 850 HP – forced air induction.

    • E85: up to 700 HP – naturally aspirated.

    • E85: up to 595 HP – forced air induction.




GEN II Stealth Tank Diagrams – Click Here

Additional information

Why an Aeromotive Gen II Stealth Fuel Tank?

The new Gen II Stealth tank utilizes Aeromotive’s patented and award-winning Phantom in-tank technology that enables a quiet, high-flow EFI pump and baffle to maintain an ample fuel supply around the inlet of the pump while ensuring consistent fuel delivery and drivability even in low fuel conditions.

Unlike competitive tanks, Aeromotive’s Gen II Stealth tanks feature outlet and return ports along with electrical terminals positioned in the OEM location. This design enables flush installation to the vehicle floor and will not require strap modification or spacers.

All Gen II Stealth tanks come out of the box completely assembled. The fuel pump, fuel level sending unit, and fuel/electrical bulkhead are pre-installed. As a true plug-and-play assembly, the Aeromotive Gen II Stealth tank gets you out of the garage and on the road in no time. This product is not legal for sale or use on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications.

Specifications

#18121 - 200 lph #18421 - 340 lph
Series Gen II Stealth Gen II Stealth
Capacity 21.5 Gallons 21.5 Gallons
Baffled Yes Yes
Material Steel Steel
Universal Or Specific Fit Specific Specific
Color Silver Silver
Filler Neck Attached Yes Yes
Fuel Type Gas Gas
Grade Type Performance Performance
Mounting Hardware Included No No
Mounting Straps Included No No
Sender Ohm Range 0-90 0-90
Sending Unit Included Yes Yes
Fuel Pump Included Yes Yes
Maximum Flow Rating 200LPH 340LPH
Maximum Pressure 95 PSI 105 PSI
Pump Design Turbine Impeller Turbine Impeller
Motor Style Brushed Brushed
Integrated Controller No No
Pulse Width Modulation Compatible Yes Yes
Outlet Type Female Female
Outlet Outside Diameter ORB-06 ORB-06
Return Fitting Size ORB-06 ORB-06
Maximum Current Draw 8.3A @ 40PSI 13A @ 40PSI
Voltage 12-16V 12-16V
Negative Ground Yes Yes
Terminal Gender Male Male
Terminal Quantity 3 3
Terminal Type Threaded Stud Threaded Stud

Installation Instructions

Instruction Manual
18121 Installation Instructions

Download PDF
Instruction Manual
18421 Installation Instructions

Download PDF

Product warranty

Limited Warranty for Pertronix and Aeromotive Products for the United States of America

PerTronix, LLC (for the Pertronix, Taylor, Doug’s, JBA, Patriot, Compu-Fire, and Spyke branded products) and Aeromotive, LLC (for the Aeromotive branded products) respectively warrant to the original end user purchaser in the United States that the Pertronix, Taylor, Doug’s, JBA, Patriot, Compu-Fire, and Spyke branded products (“Product(s)”) shall be free from defects in material and workmanship for the warranty durations set forth in the chart below from the date of purchase or delivery, whichever is later.

 Products Warranty Duration
  • Aeromotive marine pumps
  • PerTronix Ignitor, Ignitor II and Ignitor III products
  • All JBA Performance Exhaust products
  • All Doug's Headers products
2 years
  • All other Aeromotive products
  • All other PerTronix products
  • All Patriot Exhaust products
  • All Taylor Cable products
  • All Compu-Fire products
  • All Spyke products
1 year

 

Because PerTronix, LLC and Aeromotive, LLC (collectively, the “Company”) cannot control the quality of products sold by unauthorized sellers, this warranty applies only to Products that were purchased from the Company or the Company’s authorized sellers in the United States, unless otherwise prohibited by law. Company reserves the right to reject warranty claims for Products purchased from unauthorized sellers, including unauthorized Internet sites.

This warranty does not cover any defects due to normal wear and tear, damage due to misuse, alteration to the product, negligence, damage caused by aftermarket applied coatings, discoloration, or corrosion of finished surfaces. This warranty also does not cover damage resulting from collision, improper installation, off-road use, road hazards, the use of exhaust insulating wrap or like products, or rust occurring after installation.

Purchasers of a Product who wish to make a warranty claim based upon an alleged Product defect should email the Company at techs@aeromotiveinc.com (for Aeromotive products) or techs@pertronix.com (for PerTronix products) the following information: (1) Product subject to the claim, (2) brief description of the alleged defect, (3) date and place of purchase/delivery, (4) proof of purchase (showing when and where the Product was purchased), and (5) pictures or videos of the Product. If you purchased on an online marketplace, please be sure the proof of purchase shows from whom you purchased (this information is available in your order history). In some instances, Company may instruct you to mail the Product to Company for inspection and/or repair; if such instruction is provided, Company will provide you with a prepaid shipping label. You can also contact the Company Monday – Friday, 8AM – 6:30PM CT at (913) 808-2376.

Company will replace or repair a defective Product that is covered by this warranty. This
warranty does not cover the cost of removal or installation. Company will pay for the return shipping of the Product to the purchaser.

There are no warranties which extend beyond those stated herein. ANY IMPLIED
WARRANTIES THAT MAY BE APPLICABLE TO PRODUCTS, INCLUDING IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE
LIMITED IN DURATION TO THE DURATION OF THIS WARRANTY. Some States do not
allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

UNDER NO CIRCUMSTANCES SHALL THE COMPANY BE LIABLE FOR ANY SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES BASED UPON BREACH OF THIS LIMITED
WARRANTY, BREACH OF CONTRACT OR STRICT LIABILITY. Some States do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights which vary from State to State.

If you have any questions about whether a seller is authorized, please contact us at (913) 808-2376.

This warranty supersedes any warranties stated in product manuals or other written materials.

Effective Date: March 16, 2026

Returns & replacements

Returns:

  • Accepted within 90 days of purchase.
  • Prior authorization required; items must be new and resaleable.
  • Call 913-808-2376 to initiate a return and get an RGA.
  • Ship unused products in original packaging with proof of purchase.
  • You pay return shipping; use a trackable method.
  • Refund excludes initial shipping fees and may include up to a 15% restocking fee.
  • Refunds processed within 5-10 days of return acceptance.

Limits of Responsibility:

  • See Product Warranty page for more info.

Reviews

Gen II Stealth Fuel Tank, 65-67 Pontiac GTO / 66-67 Lemans

Gen II Stealth Fuel Tank, 65-67 Pontiac GTO / 66-67 Lemans

Part Number: 18121
Choose your Pump Option:
Regular price $780.85
Sale price $780.85 Regular price

Part Number: 18121
Does This part fit My vehicle?

Assembled custom for you in 3-4 weeks in Kansas

Product details
Payment methods
  • Visa
  • Mastercard
  • PayPal
  • American Express
  • Discover
  • Affirm
Emissions code

Emissions Code

Continue Reading to Understand Emissions Codes

View full details

Product Info

P/N 18121: '65-'67 Pontiac GTO & '66-'67 Lemans
With Stealth 200 pump and 0-90 ohm sending unit

  • Perfect for EFI and carbureted engines

  • OEM appearance and 21.5-gallon capacity

  • High flow, quiet 200 or 340 Stealth fuel pump

  • 0-90 Ohm fuel level sending unit included

  • Billet hat with ORB-06 outlet and return ports

  • Utilizes OEM fuel outlet location and seal

  • Featuring patented, award-winning Phantom Baffle technology for superior fuel slosh control

  • Plug-and-play; comes pre-assembled with pump and sending unit in the tank, ready for install

  • Utilizes stock mounting straps, filler cap and vent

  • This product is not legal for sale or use on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications.


P/N 18121 - 200lph Stealth Gen II Tank Application Specs:

  • Fuel Injected Engines (gasoline):

    • Up to 600 HP – naturally aspirated.

    • Up to 450 HP – forced air induction.



  • Carbureted Engines (gasoline):

    • Up to 750 HP – naturally aspirated.

    • Up to 600 HP – forced air induction.




P/N 18421 - 340lph Stealth Gen II Tank Application Specs:

  • Fuel Injected Engines:

    • Gasoline: up to 850 HP – naturally aspirated.

    • Gasoline: up to 700 HP – forced air induction.

    • E85: up to 595 HP – naturally aspirated.

    • E85: up to 490 HP – forced air induction.



  • Carbureted Engines:

    • Gasoline: up to 1000 HP – naturally aspirated.

    • Gasoline: up to 850 HP – forced air induction.

    • E85: up to 700 HP – naturally aspirated.

    • E85: up to 595 HP – forced air induction.




GEN II Stealth Tank Diagrams – Click Here

Additional information

Why an Aeromotive Gen II Stealth Fuel Tank?

The new Gen II Stealth tank utilizes Aeromotive’s patented and award-winning Phantom in-tank technology that enables a quiet, high-flow EFI pump and baffle to maintain an ample fuel supply around the inlet of the pump while ensuring consistent fuel delivery and drivability even in low fuel conditions.

Unlike competitive tanks, Aeromotive’s Gen II Stealth tanks feature outlet and return ports along with electrical terminals positioned in the OEM location. This design enables flush installation to the vehicle floor and will not require strap modification or spacers.

All Gen II Stealth tanks come out of the box completely assembled. The fuel pump, fuel level sending unit, and fuel/electrical bulkhead are pre-installed. As a true plug-and-play assembly, the Aeromotive Gen II Stealth tank gets you out of the garage and on the road in no time. This product is not legal for sale or use on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications.

Specifications

#18121 - 200 lph #18421 - 340 lph
Series Gen II Stealth Gen II Stealth
Capacity 21.5 Gallons 21.5 Gallons
Baffled Yes Yes
Material Steel Steel
Universal Or Specific Fit Specific Specific
Color Silver Silver
Filler Neck Attached Yes Yes
Fuel Type Gas Gas
Grade Type Performance Performance
Mounting Hardware Included No No
Mounting Straps Included No No
Sender Ohm Range 0-90 0-90
Sending Unit Included Yes Yes
Fuel Pump Included Yes Yes
Maximum Flow Rating 200LPH 340LPH
Maximum Pressure 95 PSI 105 PSI
Pump Design Turbine Impeller Turbine Impeller
Motor Style Brushed Brushed
Integrated Controller No No
Pulse Width Modulation Compatible Yes Yes
Outlet Type Female Female
Outlet Outside Diameter ORB-06 ORB-06
Return Fitting Size ORB-06 ORB-06
Maximum Current Draw 8.3A @ 40PSI 13A @ 40PSI
Voltage 12-16V 12-16V
Negative Ground Yes Yes
Terminal Gender Male Male
Terminal Quantity 3 3
Terminal Type Threaded Stud Threaded Stud

Installation Instructions

Instruction Manual
18121 Installation Instructions

Download PDF
Instruction Manual
18421 Installation Instructions

Download PDF

Product warranty

Limited Warranty for Pertronix and Aeromotive Products for the United States of America

PerTronix, LLC (for the Pertronix, Taylor, Doug’s, JBA, Patriot, Compu-Fire, and Spyke branded products) and Aeromotive, LLC (for the Aeromotive branded products) respectively warrant to the original end user purchaser in the United States that the Pertronix, Taylor, Doug’s, JBA, Patriot, Compu-Fire, and Spyke branded products (“Product(s)”) shall be free from defects in material and workmanship for the warranty durations set forth in the chart below from the date of purchase or delivery, whichever is later.

 Products Warranty Duration
  • Aeromotive marine pumps
  • PerTronix Ignitor, Ignitor II and Ignitor III products
  • All JBA Performance Exhaust products
  • All Doug's Headers products
2 years
  • All other Aeromotive products
  • All other PerTronix products
  • All Patriot Exhaust products
  • All Taylor Cable products
  • All Compu-Fire products
  • All Spyke products
1 year

 

Because PerTronix, LLC and Aeromotive, LLC (collectively, the “Company”) cannot control the quality of products sold by unauthorized sellers, this warranty applies only to Products that were purchased from the Company or the Company’s authorized sellers in the United States, unless otherwise prohibited by law. Company reserves the right to reject warranty claims for Products purchased from unauthorized sellers, including unauthorized Internet sites.

This warranty does not cover any defects due to normal wear and tear, damage due to misuse, alteration to the product, negligence, damage caused by aftermarket applied coatings, discoloration, or corrosion of finished surfaces. This warranty also does not cover damage resulting from collision, improper installation, off-road use, road hazards, the use of exhaust insulating wrap or like products, or rust occurring after installation.

Purchasers of a Product who wish to make a warranty claim based upon an alleged Product defect should email the Company at techs@aeromotiveinc.com (for Aeromotive products) or techs@pertronix.com (for PerTronix products) the following information: (1) Product subject to the claim, (2) brief description of the alleged defect, (3) date and place of purchase/delivery, (4) proof of purchase (showing when and where the Product was purchased), and (5) pictures or videos of the Product. If you purchased on an online marketplace, please be sure the proof of purchase shows from whom you purchased (this information is available in your order history). In some instances, Company may instruct you to mail the Product to Company for inspection and/or repair; if such instruction is provided, Company will provide you with a prepaid shipping label. You can also contact the Company Monday – Friday, 8AM – 6:30PM CT at (913) 808-2376.

Company will replace or repair a defective Product that is covered by this warranty. This
warranty does not cover the cost of removal or installation. Company will pay for the return shipping of the Product to the purchaser.

There are no warranties which extend beyond those stated herein. ANY IMPLIED
WARRANTIES THAT MAY BE APPLICABLE TO PRODUCTS, INCLUDING IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE
LIMITED IN DURATION TO THE DURATION OF THIS WARRANTY. Some States do not
allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

UNDER NO CIRCUMSTANCES SHALL THE COMPANY BE LIABLE FOR ANY SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES BASED UPON BREACH OF THIS LIMITED
WARRANTY, BREACH OF CONTRACT OR STRICT LIABILITY. Some States do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights which vary from State to State.

If you have any questions about whether a seller is authorized, please contact us at (913) 808-2376.

This warranty supersedes any warranties stated in product manuals or other written materials.

Effective Date: March 16, 2026

Returns & replacements

Returns:

  • Accepted within 90 days of purchase.
  • Prior authorization required; items must be new and resaleable.
  • Call 913-808-2376 to initiate a return and get an RGA.
  • Ship unused products in original packaging with proof of purchase.
  • You pay return shipping; use a trackable method.
  • Refund excludes initial shipping fees and may include up to a 15% restocking fee.
  • Refunds processed within 5-10 days of return acceptance.

Limits of Responsibility:

  • See Product Warranty page for more info.

Reviews

Gen II Stealth Fuel Tank, 65-67 Pontiac GTO / 66-67 Lemans
Gen II Stealth Fuel Tank, 65-67 Pontiac GTO / 66-67 Lemans
Pump Option:
200 lph
Regular price $780.85
Sale price $780.85 Regular price
Year / Make / Model 1965-1967 Pontiac GTO
Engine Size(s) Liters: 6.4, 6.6
Cubic Inches: 389, 400

Year / Make / Model 1966-1967 Pontiac LeMans
Engine Size(s) Liters: 3.8, 5.3
Cubic Inches: 230, 326

You may also like

Recently Viewed Products

Fuel Your Passion with Aeromotive

Trending Builds & Posts in the Aeromotive Community