Dual Battery Kit w/ Voltage Sensitive Relay

Dual Battery Kit w/ Voltage Sensitive Relay

Marsoni

M251S

$181.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Dual Battery Kit w/ Voltage Sensitive RelayDetails: Automatically isolates the starting battery from the auxiliary batterySuitable for 4X4, Marine, Truck, Caravan & camping applicationsNo need to modify vehicle wiringKit contains all components required to complete the jobVoltage sensitive relay rated at 140 amps with emergency parallel switchProven reliability over many yearsEasy to install

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Fast: 2-3 business days
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Exchange/Return Notes

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The part appears decently made in China. The end that terminates below the oil filter would not mount (too tight). I gently sanded the o-ring groove, lubricated and I put the part in freezer. After two hours of sanding the groove I got the part seated. Good thing I was patient today. Pain in the butt.

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Reviewed in the United States on December 12, 2020

Verified Purchase

Man with plan

Dallas, US

★★★★★ 5

Highly recommend

Perfect fit for my Mercedes C300 V6

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Reviewed in the United States on March 1, 2026

Verified Purchase

kip wargo