Help is just a click away!
Click here to chat with a Speedway Team Member
Online - Chat with us!
Products to Compare (max of 3)
Compare These Parts
Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Customer Service
Since 1952
Talk to the Experts. Call 800.979.0122
Shop By
Street Race Truck More... The Toolbox
Add to Cart
Radiator Accessory Kit
Radiator Accessory Kit

Radiator Accessory Kit

Universal Fit, 2.00" Overall Height, 4.47" Overall Length, 1/8" NPT Thread Pitch, Natural

0 Reviews | 0 Answered Questions
In Stock
Can Ship FREE
Select your vehicle to verify fitment.
Select Vehicle
Radiator Accessory Kit
Radiator Accessory Kit
Zoomed In Image
Part # 91605021
Save 15%
Add to Cart
Call to Order
Add to Buildlist
What's In The Kit
Videos & Articles

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Build Your Kit

You're almost there! This kit has an option or two for you to select. Let us know which options you want for your new kit.
Add to Cart


Overall Height:
Overall Length:
Thread Pitch:
1/8" NPT
Sold in Quantity:



Kit Includes:

  • (1) Speedway Inline Die Cast Filler Neck
  • (1) Stant High Pressure Racing Radiator Cap
  • (1) Speedway Radiator Overflow Kit
  • (2) COMP Cams Gator Brand Hose Clamp

Speedway Inline Die Cast Filler Neck

This 1-1/2" inline hose adapter allows you to put a radiator fill cap inline. 

  • Overall Height: 2.00"
  • Overall Length: 4.47"
  • Inside Diameter: 1.18"
  • Outside Diameter: 1.50"
  • Thread Pitch: 1/8" NPT
  • Material Type: Aluminum
  • Finish: Natural

Stant High Pressure Racing Radiator Cap

Stant racing radiator caps are used by all the top NASCAR teams. They are best high pressure radiator caps you can buy! The Stant 10372 has a 21-25 psi pressure rating and is designed for open systems on racing vehicles.

  • Overall Height: 2.625"
  • Overall Length: 3.14"
  • Overall Diameter: 2.625"
  • Pressure Rating: 21-25 lbs
  • Material Type: Steel
  • Finish: Zinc Plated

Learn more about how to choose the proper pressure radiator cap and how they work by reading our tech article, Cooling System Principles

Speedway Radiator Overflow Kit

  • Aluminum 1/8" NPT to 1/4" barb fitting
  • 1/4" plastic tubing

COMP Cams Gator Brand Hose Clamp

Gator Brand Performance Hose Clamps, Size Range: 1.250"-2.000" OR 35mm-50mm. Gator Brand Clamps are produced using a stainless steel continuous band with extruded, asymmetrical threads for reliable performance. The edges of the band are rolled to prevent any sharp edges from damaging the hose. This is especially important on silicone hoses that have a soft, vulnerable cover.

  • Constructed of continuous stainless steel band with extruded, asymmetrical threads
  • Asymmetrical (offset) gear box employed to reduce clamp twist when tightening
  • Combination of asymmetrical gear box and extruded threads provides even clamping force over surface of hose
  • Hold up under 3.7 ft./lbs. (5nm) torque
  • Cover size range of 5/16" (8mm) to 5.000" (120mm)
  • MFG. Part #: G31232
  • Hose OD: 1.25"
  • Material Type: Stainless Steel
  • Finish: Natural
  • Minimum Clamping Diameter: 1.25"
  • Maximum Clamping Diameter: 2"
  • Style: Worm Gear
  • Grip Range: 1-1/4" to 2"
Some parts are not legal for use in California or other states with similar laws/regulations

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • Inline Die Cast Filler Neck, 1.5 Inch Hose
    Qty x 1
  • Stant 10372 High Pressure Racing Radiator Cap, 21-25 Lbs
    Qty x 1
  • Radiator Overflow Kit
    Qty x 1
  • COMP Cams G31232 Gator Brand Hose Clamp, 1.250 - 2 in. Range, Size 24
    Qty x 2

More Like This


Q & A

Videos & Articles
  • We all need a little help from time to time. In this case, we had a grill shell on a 1946 Chevrolet Truck that could use some stiffening. Ride along as Heath installs support rods and rod brackets.
  • Shortcuts don't always pay off. Zach Raddatz walk us through his experience with a cheap radiator so we don't make the same mistake!
  • Tim talks about the process of adapting a full size 1932 Ford Radiator to fit in his 1929 Ford Roadster project.

You May Also Like