Gauges and Accessories Gauge Components

Big End Performance

#4 GAUGE SUPPLY LINE KIT 48IN

$38.58

SKU: B01B 15121

In Stock
In Stock
Ships by Jun 14
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Big End Performance 15121 is a 48-inch gauge line kit.

It features a stainless steel braided Teflon line and includes all necessary fittings, such as a 1/8 in. NPT to 1/4 in. NPT adapter bushing, and various -4AN male and female fittings. The line is rated to 3,000 psi.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBig End Performance
Part NumberB01B 15121

Buy with Confidence

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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