Neutral Safety Switch C4 1965-12/15/1966

CJ's Part Number: SW241
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1508544000 50673
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Neutral Safety Switch C4 1965-12/15/1966

Product Description

Neutral Safety Switch for all 1965, 1966 and 1967 Mustangs built before December 15th, 1966 with a C4 Automatic Transmission.

If your 1965-1967 Mustang isn’t starting, one possible reason may be that the neutral safety switch has failed. Also known as a backup light switch, the neutral safety switch disables the starter operation when the transmission is not in neutral or park. If the engine was allowed to start in gear the car would immediately begin to move once the engine started.

Problems with the neutral safety switch may present themselves as the Mustang taking multiple attempts to start, starting in the wrong gear or having to tweak the shifter in a particular way to start the engine. Prevent these sorts of problems with a brand-new neutral safety switch for your Mustang.

This neutral safety switch, or backup light switch, is a fantastic reproduction of the original unit and will help keep your Mustang running as good as new.

Tech Tip: Make sure that you route the neutral safety switch wiring away from the exhaust. A common failure is caused by getting too close to the hot exhaust which can melt the wiring.

*Not for use on 1967 Mustangs built after December 15th, 1966.

Order a new Neutral Safety Switch for your 1965-1966 Mustang built before December 15th, 1966 with a C4 automatic transmission from CJ Pony Parts today!

Similar Mustang Parts

similar Mustang parts More Neutral Safety Switch Wiring  

Installation Instructions

Mustang Installation

Mustang Applications

This product will fit the following Mustang years:

Product Reviews

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Neutral Safety Switch C4 1965-12/15/1966 is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Perfect fit! I purchased this item, but found my c4 came from a vehicle that was a column shift, but CJ Pony parts had the selector shaft that I can install to be able to use the neutral safety switch.
Date published: 2017-06-09
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Product Questions

Is this switxch for mustang convertable with a consul shift??

Asked by: baby 66
Yes, being a convertible or having a console would not affect this switch.
Answered by: rk cjpp
Date published: 2017-10-03

My neutral safety switch is like CJ's sw-241 - how do I hook up the wires since my car never had an automatic before? My car is a 66 with a 200ci motor

Asked by: Freddy 2
Under the hood at the drivers side of the firewall there should be 2 pairs of wires , one with a jumper wire in it, these are where you plug the neutral safety switch wires to. One plug will be to the starter solenoid and the other to the reverse lights if your car was factory equipped with them.
Answered by: rk cjpp
Date published: 2017-07-28

Does this item come with instructions on how to set it up?

Asked by: vman1949
No instructions are included. It is a factory replacement part, so it would install like the original part.
Answered by: CJPP Dave
Date published: 2016-02-03

Does this also operate the backup lights?

Asked by: kjones59
Yes it does.
Answered by: rk cjpp
Date published: 2015-11-03

does it mount on trans.

Asked by: Will38
Yes, this mounts on the drivers side of the transmission.
Answered by: rk cjpp
Date published: 2017-08-30

have a customers kit car with a c-4 unknown year and no info on car not sure wich switch to order

Asked by: stosch
Without any info on the car, it's hard to say. You have to figure out what year the car is and what type of switch it needs. There's not much advice we can give without any info.
Answered by: CJ Pony Parts
Date published: 2015-05-21
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