Easy — 1–2 hours
Description
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
| Brand | Holley |
| Part Number | H00E 121-132 |
| Weight | 0.04 lb |
Videos
Accelerator Pump Cam Selection And Installation On Holley Carbs
Better throttle response / less hesitation from Holley style carb for $40? Power Blast Plate Review
Holley 4150 Carburetor Tuning! Accelerator pump / discharge nozzles / pump cams / power valve
How to Replace the Accelerator Pump Nozzles on a Holley Double Pumper
Finding the right Jet Size and Accelerator Nozzle Size - Holley Carb
Accelerator Pump
Holley Carb Accelerator Pump Tuning
MOST COMMON Misadjusted Holley Carburetor Setting (2 second Fix)
How to Replace a Holley Accelerator Pump Diaphragm
Holley Accelerator-Pump-Shot Vdeo
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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