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Holley

HOLLEY Pump Discharge Nozzle

MPN: 121-35 Catalog #: 001508782 Category: Carburetor Discharge Nozzles Check Vehicle Fitment

Product Details

Accelerator Pump Discharge Nozzle - 0.035 in ID - Tube Type - Holley Carburetors - Pair

In-Tank Retrofit Fuel Module; 525 LPH; Returnless Style; Install In Any Tank From 7.5 in. To 12 in. Deep;

The Holley In-tank RetroFit Fuel Modules are now available with a 525 LPH Pump. Convert your factory tank or fuel cell to an in-tank EFI fuel system quickly and easily! And- add the benefits of a Holley Hydramat in the process! The conversion is easily accomplished with basic tools and requires no welding or fabrication. The billet aluminum module design includes a billet pump hanger bracket to control pump vibration while also providing a low profile design to fit where space is at a premium. Holley's innovative clamping system and integrated fuel pump makes it easy. Supports up to 1200 EFI or 1450 Carb HP (@ 60 PSI at 13.5 Volts / 16.9 AMP Draw) Of course there are many variables, estimates are based on gasoline. Individual systems will vary based on fuel system design, regulator type, fuel cell location, etc...

Fitment: IN-TANK RETRO-FIT FUEL MODULE 525 LPH RE

DETAILS:

Accelerator Pump Discharge Nozzle; 0.035 in. Hole Size; Tube Type; Incl. 2 Nozzles/4 Gaskets;

A good selection of accelerator pump discharge nozzle sizes is indispensable to the proper tuning of the accelerator pump system. The nozzle hole size determines the rate of fuel discharge. A larger hole will shoot the fuel at a faster rate, and with less pressure, than a smaller hole. Sizes are stamped on each nozzle. For example, the number 31 indicates that the nozzle hole size is .031-inches. Various styles of nozzles are offered by Holley.

Fitment: Accelerator Pump Discharge Nozzle 0.035 in. Hole Size Tube Type Includes 2 Gaskets

Part Number 12-135 SPECS:

Part Number 121-35 SPECS:

Accelerator Pump Discharge Nozzle - 0.035 in ID - Tube Type - Aluminum - Natural - Holley Carburetors - Pair

DETAILS:

  • Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
  • Carburetor Accelerator Pump Nozzle
  • Accelerator Pump Discharge Nozzle
  • 0.035 in. Hole Size
  • Includes 2 Gaskets
  • Tube Type
  • PUMP DISCHARGE NOZZLE
  • CrbAclPmpNzz

Part Number 12-135 SPECS:

  • WARNING CA Proposition 65: No

Part Number 121-35 SPECS:

  • Material: Aluminum
  • Nozzle Size: 0.035 in.
  • Nozzle Type: Tube Type
  • WARNING CA Proposition 65: No

Accelerator Pump Discharge Nozzle - 0.035 in ID - Tube Type - Aluminum - Natural - Holley Carburetors - Pair

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Product Specs

Brand
Holley
Part Number
121-35
Catalog Number
001508782
Product Line
Carburetor Discharge Nozzles
Category
Fuel Delivery
Type
Carburetor Discharge Nozzles
UPC / Barcode
090127020999
Length
5.00 in
Width
3.45 in
Height
1.20 in
Weight
0.04 lb
Freight / LTL
175.00
Ship Alone
No
Air Restricted
No
Hazmat
No
Chemical
No
Non-Returnable
No
Case Quantity
1
Kit
No

Shipping & Availability

Current status 2 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

Inventory shown: 2 available as of 6/3/2026.

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