SKU: 42588767557

12v WATERPROOF AUTOMOTIVE & MARINE HEAVY DUTY RELAY 40AMP-START

Sale price$14.40 Regular price$16.00
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

12v WATERPROOF AUTOMOTIVE & MARINE HEAVY DUTY RELAY 40AMP-STARTOur heavy duty 40amp waterproof automotive & marine starter motor relay is the best choice for any type of 12 volt for your marine wiring project. Also used for many car electronic applications to turn on off almost any devices. They are also used when a device draws heavy amperage such as car alarms, remote starts, HID headlights, pop doors, trunk releases strobe lights, fog lights, stereos, fans, air horns, and much more. The single pole double

Our heavy duty 40amp waterproof automotive & marine starter motor relay is the best choice for any type of 12-volt for your marine wiring project.

Also used for many car electronic applications to turn on/off almost any devices.

They are also used when a device draws heavy amperage such as car alarms, remote starts, HID headlights, pop doors, trunk releases strobe lights, fog lights, stereos, fans, air horns, and much more.

The single pole/double throw relay will never get stuck or short out on you.

A 5-pin relay has the versatility of being used as either a standard 4 pin
relay or a 5 pin for more complex control applications.
 
Connectible interlocking sockets for an easy installation.
 
Complete with:
1 x 5 pin 12volt 40amp starter relay + waterproof housing.
1 x Terminal block + waterproof housing
5 x terminal pins
1 x blanking plug.
1 x metal detachable mounting bracket.
 

Part No: BWAMRY40AST

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42588767557

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4.4 ★★★★★
Based on 13 reviews
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Verified Purchase
TDroyle
Draper, US
★★★★★ 5
High quality tools
Size: 3 Pack
These are real nice. Pretty heavy and work well. Not some light weight junk tool. I’d definitely recommend these for ….. well I was sound deadening my car, but yes these were worth the money and will last me years if I ever have to get another set.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026
R
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Rob Allan
Omaha, US
★★★★★ 4
Good but maybe too narrow...
Size: 1 Pack
Buy a wider one. Functions ns well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026
L
Verified Purchase
Leonardo Oliva
Birmingham, US
★★★★★ 5
Van build
Size: 3 Pack
The rollers work well they are made out of metal and not expensive
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Reviewed in the United States on March 20, 2026
T
Verified Purchase
T Money
Phoenix, US
★★★★★ 5
Buy it. Spend the $$$
Size: 3 Pack, Size: 3 Pack
Glad I spent the extra money and got the rollers with the ball bearings. The 3 pack came in handy. Very good quality. If you are doing more than 1 area, you will need these.
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Reviewed in the United States on June 4, 2026
C
Verified Purchase
Chevy05
Birmingham, US
★★★★★ 5
A Must Have For Sound Deadening Materials
Size: 3 Pack
I applied Silex sound deadening material to the rear interior of a Ford Maverick truck cab. Lots of narrow areas, and lots of curved surfaces. This set was a must to properly apply the mats to the metal surface. There were places that I had to push down with my fingers due to obstacles like seat belt mounts, but I could tell that I was not getting the same results as I was with the crimped rollers.
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Reviewed in the United States on May 5, 2026

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