About the Walbro TI F90000274 450LPH E85 Compatible In-Tank Fuel Pump With QFS Install Kit Option
If you are building a forced-induction or high-output naturally aspirated engine, the Walbro F90000274 is the de facto standard upgrade for in-tank fuel pump platforms. The pump delivers 450 liters per hour at 40 PSI (nearly double a typical OEM pump), with full E85 ethanol compatibility that allows the use of high-octane ethanol fuel without destroying the pump internals. Common application platforms include Subaru WRX/STI, Mitsubishi Evo, Honda K-series swap builds, Mustang GT, Camaro SS, and most other in-tank platforms running serious power.
Vaz Auto Solutions sources Walbro F90000274 pumps through authorized Walbro / TI Automotive distribution. Every pump arrives in unopened original Walbro packaging with holographic authenticity sticker, manufacturer barcode, and serial number traceable to the manufacturer. This protects you from the widespread counterfeit pump market where fake F90000274 units fail rapidly and lack E85 compatibility.
Order with confidence at $189 for the base pump, with QFS install kit option available as upgrade for customers needing fresh strainer, boot, connector and hardware.
Honest Product Category Disclosure
This Walbro F90000274 is a brand-new aftermarket high-performance fuel pump, NOT a used OEM in-tank pump from a donor vehicle. Vaz Auto Solutions is primarily a verified-used OEM auto parts business serving owners of late-model passenger vehicles. We stock the Walbro F90000274 as one of a small number of new aftermarket performance items to serve the tuner and forced-induction enthusiast market. If you are looking for a used OEM in-tank fuel pump assembly for a standard non-performance vehicle, this listing does NOT apply. Call (240) 301-0095 and we will help you find the correct used OEM in-tank fuel pump for your specific vehicle year and engine.
Vehicle Compatibility
Common platforms (specify application when ordering for QFS kit compatibility):
| Vehicle |
Compatibility |
| Subaru WRX / STI (2002+) |
EJ20 or EJ25 turbo, in-tank pump location, drop-in fit |
| Mitsubishi Lancer Evolution VIII/IX/X |
4G63T or 4B11T turbo, in-tank pump location, drop-in fit |
| Honda K-Series Swap (K20/K24 Forced-Induction) |
Common in EG/EK Civic, DC2 Integra, AP1/AP2 S2000 swaps |
| Ford Mustang GT Coyote 5.0L |
Naturally aspirated factory, common forced-induction upgrade target |
| Chevrolet Camaro SS (LS3/LT1) |
Naturally aspirated factory, common supercharger upgrade target |
| Other In-Tank Platforms |
Most platforms with in-tank OEM pump mounting can use F90000274, verify physical fit |
| NOT Applicable |
External (frame-mounted) inline fuel pump platforms, carbureted engines, diesel engines, returnless fuel systems without proper integration |
Condition and Inspection
- Brand-new product (not used, not refurbished, never installed)
- Original Walbro packaging (holographic authenticity sticker, manufacturer barcode)
- Serial number on pump traceable to Walbro / TI Automotive manufacturer
- Sourced through authorized distribution (not Amazon/eBay counterfeit marketplace)
- TI Automotive product registration card included in packaging
- Packaging unopened before customer receipt
- Pump itself never installed or operated
- Cosmetic condition perfect (no scratches, no damage, no contamination)
- Manufacturer warranty intact (Walbro / TI Automotive)
- Packaged for transit protection (no shipping damage risk)
- For tuner and forced-induction performance builds
- Honest category disclosure (NEW aftermarket, not used OEM)
- Genuine Walbro / TI Automotive sourcing through authorized distribution
- Serial number traceable to manufacturer
- Authentic original Walbro packaging with holographic sticker
- Counterfeit pump warning provided to customers
- Fair authorized-distribution pricing at $189
- QFS install kit option available as upgrade
- Application platform support (WRX/STI, Evo, K-swap, Mustang, Camaro, others)
- Performance build customer support team
- Manufacturer warranty intact
- Free shipping all 50 states
- Fast 3-7 business day shipping
Caleb Whitmore
1970-01-01
Bought the F90000274 for my 2018 STI build (target 550 HP on E85). Vaz was extremely upfront that this is a brand-new aftermarket performance part not used OEM (different from their main business) which I appreciated. Pump arrived in unopened Walbro packaging with the holographic sticker intact and the serial number traceable. Added the QFS install kit option for $20. Installed myself with rear seat access on the STI. Pump runs perfectly, flow rate verified by my tuner against the spec. Best par
Jasmine Okafor
1970-01-01
Picked up an F90000274 for my Honda K-swap build (K20A2 in an EG hatch, turbo, E85). Vaz confirmed the pump dimensions matched my AEM in-tank assembly. Authentic Walbro packaging, holographic sticker present, serial number on pump body verified. Tuner dialed in the fueling without issues, pump easily supports my 480 HP target. One star off because the QFS kit option timing took an extra day to ship (kit needed to be added after my initial order), small logistics issue but everything else perfect
Is this a USED OEM fuel pump or NEW aftermarket?
This is a BRAND-NEW aftermarket performance fuel pump from Walbro / TI Automotive. It is NOT a used OEM pump from a donor vehicle. Vaz Auto Solutions is primarily a verified-used OEM auto parts business, but we stock the Walbro F90000274 (and a small number of similar performance items) to serve the tuner and forced-induction enthusiast market. The product category is fundamentally different from a used OEM in-tank pump. If you are looking for a used OEM in-tank fuel pump assembly for a standard non-performance vehicle, this listing does not apply, call us at (240) 301-0095 for the correct used OEM pump.
How do I know my Walbro F90000274 is genuine and not counterfeit?
Multiple authenticity checks. (1) Authorized distribution: our pumps come from authorized Walbro / TI Automotive distribution, with documented sourcing. (2) Holographic sticker: original Walbro packaging includes a holographic authenticity sticker that cannot be easily counterfeited. (3) Manufacturer barcode: the package has a manufacturer barcode that can be verified against Walbro's database. (4) Serial number on pump: each pump has a serial number traceable to the manufacturer. (5) TI Automotive registration card: included in the package, can be registered with TI Automotive for warranty tracking. (6) Pricing: genuine F90000274 retails $180-250, anything significantly below is virtually always counterfeit. If your $189 purchase from us looks suspicious in any way, contact (240) 301-0095 immediately for verification.
Will this pump fit my Subaru WRX / Mitsubishi Evo / Honda K-swap / Mustang GT?
For the most common forced-induction tuner platforms (Subaru WRX/STI 2002+, Mitsubishi Evo VIII/IX/X, Honda K-series forced-induction swap builds, Ford Mustang GT Coyote 5.0L, Chevrolet Camaro SS LS3/LT1), yes typically. The Walbro F90000274 has been designed and dimensioned to drop into the most common in-tank fuel pump assembly mounting points. For other platforms (less common applications), verify physical fit against the existing OEM pump dimensions. Call (240) 301-0095 with your specific platform and we will confirm fitment and recommend QFS install kit components.
What is the QFS Install Kit option?
Quantum Fuel Systems (QFS) offers an install kit option that includes the strainer (sock filter at pump pickup), rubber boot (between pump and tank floor), electrical connector (between pump pigtail and tank wiring), and hardware (gaskets, clamps) required to complete the in-tank installation. Without the kit, customer must reuse OEM strainer/boot/connector from their existing pump assembly. With the kit, customer gets fresh installation hardware that ensures correct sealing and electrical connection. The kit cost adds approximately $15-25 to the base pump price depending on application platform. Recommended for any installation since the strainer should be replaced regardless.
Will I need to upgrade my fuel pump relay or wiring?
Possibly. The Walbro F90000274 draws 12-18 amps at full flow, higher than OEM pumps. Many OEM fuel pump relays and harnesses are rated for 15-20 amps continuous and will handle the F90000274 fine. Some platforms (especially older builds or vehicles with marginal electrical capacity) need a relay upgrade and possibly larger gauge wiring. The symptom of inadequate electrical capacity is voltage drop at the pump under load, which reduces actual fuel flow below the 450 LPH spec and can cause lean conditions under boost. Consult with your tuner about whether your platform needs an electrical upgrade alongside the pump.
My existing pump is for E85 already. Why do I need this Walbro?
The 450 LPH flow rate vs typical 150-250 LPH OEM pumps is the primary reason. If your existing pump is OEM and adequate for stock power on E85, but you are adding forced induction or going for higher power targets, the OEM pump will run out of capacity even if it is E85-compatible. The F90000274 provides nearly double the flow rate at the same pressure, supporting much higher power targets. E85 compatibility is a separate consideration from flow rate.
Do you offer installation service?
We do not offer in-house installation service for performance parts. The Walbro F90000274 installation requires fuel system depressurization, fuel tank access (which on most platforms requires either dropping the tank or rear seat removal), and fuel system bleed afterward. Most owners install themselves or use a local performance shop familiar with their specific platform. We can recommend specialty shops in your region if needed, call (240) 301-0095.
How does shipping work?
Free shipping to all 50 US states. The pump weighs less than 1 lb and ships in a padded box via UPS or FedEx Ground. Original Walbro packaging is itself protected within the shipping box to prevent transit damage to the box or holographic sticker. Typical transit is 3 to 7 business days from order confirmation. Genuine packaging arrives unopened.
Walbro / TI Automotive Manufacturer Warranty
This product is covered by the genuine Walbro / TI Automotive manufacturer warranty (typically 1 year from date of purchase, covers manufacturing defects only). The manufacturer warranty does NOT cover damage from improper installation, tuning issues that cause pump failure, contaminated fuel, electrical system overload from inadequate fuel pump relay or wiring, or normal wear in high-output performance applications.
Vaz Auto Solutions 15 Day Replacement Warranty (Defects at Delivery):
- Counterfeit-looking pump (which should not happen given our sourcing)
- Pump arrives damaged in transit
- Packaging is opened or tampered
- Serial number does not check out as genuine
Not Covered by Either Warranty:
- Damage from improper installation (cross-threaded fittings, omitted O-rings, contaminated fuel system)
- Damage from tuning issues (excessive injector duty cycle starves the pump, lean conditions damage components)
- Damage from inadequate fuel pump relay or wiring upgrade
- Damage from continued operation after pump shows signs of failure
- Labor costs of any kind including installation labor
Performance and tuner applications void manufacturer warranty in many cases per Walbro terms. Note: this is a performance part for performance builds. Standard customer expectations of OEM-equivalent durability do not apply. Contact (240) 301-0095 within 15 days of delivery for any concerns.
