Starting Pin/Spring 21BB

Starting Pin/Spring 21BB

Brand: HPI

Part Number: HPI-1433

5 (1 rating)
£4.27 Web Price RRP £4.49
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#1433 - STARTING PIN/PRESSURE SPRING NITRO STAR S-25 / F series

Genuine HPI spare part for ensured quality, correct maintenance and easy repairs. See below for kit compatibility.

  • Brand: HPI
  • Part No: HPI-1433
  • Barcode: 4944258014333
  • Fitment: Standard Part

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- 9th April 2021

Brilliant service. My number 1 go to for all my spares !!!!

Will this fis a savage x 4.6 with rotostart?
Asked by Richard on 11th January 2017

Yes part 1433 does fit the F4.6 engine, used in the Savage X 4.6

Answered by: Ben @ Wheelspin Models

Hi there. Do you know if this is the correct spring and pin for a savage x 4.6 engine? Regards Andy.
Asked by Andy on 28th June 2020

If it's an F4.6 yes this should work.

Answered by: Ben @ Wheelspin Models

Hi will your Starting Pin/Spring 21BB fit my hpi trophy 3.5??
Asked by Kevin Turner on 1st August 2020

These are listed for the trophy yes - but to be 100% certain I'd check the part number listed in your manual

Answered by: Ben @ Wheelspin Models

Would you ship to the US? I need the HPI 1433 starting pin/spring.
Asked by Denis Meany on 31st August 2020

Yep we ship worldwide

Answered by: Ben @ Wheelspin Models

Will this fit the 4.6 savage xf4.6
Asked by Jason on 11th November 2021

No sorry this is for the Trophy range of engines. 

Answered by: Anthony @ Wheelspin Models

Please can you tell me the diameter and length of spring and pin
Asked by Peter Leverett on 2nd July 2022

The sizes approx

Spring is    7mm x 3mm

pin       5mm  x 3mm

Answered by: Si @ Wheelspin Models

this is the part number i have been given for the hpi 4.6 is this correct regards steve
Asked by Steven Pye on 23rd January 2024

Yes, this will fit that engine too.

Answered by: Si @ Wheelspin Models

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