ZZPerformance

HPFP Internals Kit

$79.99

SKU: 57.127.300K

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The AutoTech High Volume LF3/LF4 HPFP Internals Kit is designed to address known weaknesses in the ATS-V's fuel system. This kit replaces the existing piston and cylinder within your OEM high-pressure fuel pump, aiming to increase its volume output. AutoTech claims this upgrade provides a 36% increase in fuel volume, which can be crucial for running higher ethanol blends without resorting to more expensive large-bore HPFP solutions. This kit is fully compatible with both stock and aftermarket camshafts. Notably, the manufacturer states that replacing the factory fuel lines, which can be costly, is not necessary for this upgrade; the stock lines will function correctly after disassembly. Installation of this kit requires a specific fuel pump disassembly tool, which is sold separately.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandZZPerformance
Part Number57.127.300K
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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