K-Four Switches

SKU: K4-19-133

Blue Sea 5025 6 Circuits ST Blade Fuse Block Distribution Box With Negative Bus

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$57.95

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SKU: K4-19-134

Blue Sea 5026 12 Circuits ST Blade Fuse Block Distribution Box With Negative Bus

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$64.95

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SKU: K4-19-142

Blue Sea 5045 Atc Compact Fuse Block With Cover, 4 Circuit 19-142

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$36.95

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SKU: K4-19-143

Blue Sea 5046 Atc Compact Fuse Block With Cover, 8 Circuit 19-143

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$46.95

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SKU: K4-16-125-BK

Blue Sea Black Battery Cut-Off Switch Single Battery Operation K4-16-125-BK

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$46.95

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SKU: K4-16-126-BK

Blue Sea Black Battery Selector Switch Single-Dual Battery Operation K4-16-126BK

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$49.95

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SKU: K4-16-132-BK

Blue Sea Black Dual Circuit Battery Cut-Off Switch Dual Battery K4-16-132-BK

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$52.95

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SKU: K4-16-135

Blue Sea Grey Battery Cut-Off Switch Single Battery Operation K4-16-135

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$84.95

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SKU: K4-16-125

Blue Sea Red Battery Cut-Off Switch Single Battery Operation K4-16-125

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$46.95

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SKU: K4-16-129

Blue Sea Red Battery Cut-Off Switch Single Battery Operation K4-16-129

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$49.95

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SKU: K4-16-128

Blue Sea Red Battery Selector Switch AFD Single-Dual Battery Operation 16-128

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$54.95

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SKU: K4-16-127

Blue Sea Red Battery Selector Switch Single-Dual Battery Operation 16-127

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$52.95

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SKU: K4-16-126

Blue Sea Red Battery Selector Switch Single-Dual Battery Operation K4-16-126

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$49.95

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SKU: K4-16-132

Blue Sea Red Dual Circuit Battery Cut-Off Switch Dual Battery K4-16-132

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$52.95

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SKU: K4-16-130

Blue Sea Red Dual Circuit Plus Battery Switch Combines Batteries K4-16-130

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$64.95

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SKU: K4-40-101-18-100

K4 #10 Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 100 Pack

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$18.95

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SKU: K4-40-101-18

K4 #10 Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 12 Pack

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$9.95

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SKU: K4-40-104-18-100

K4 #10 Hole Blue Spade Terminal For 14-16 Gauge Wire/Qty 100 Pack

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$15.95

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SKU: K4-40-104-18

K4 #10 Hole Blue Spade Terminal For 14-16 Gauge Wire/Qty 12 Pack

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$9.95

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SKU: K4-40-100-18-100

K4 #10 Hole Red Ring Terminal For 18-22 Gauge Wire/Qty 100 Pack

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$14.95

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SKU: K4-40-100-18

K4 #10 Hole Red Ring Terminal For 18-22 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-103-18-100

K4 #10 Hole Red Spade Terminal For 18-22 Gauge Wire/Qty 100 Pack

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$14.95

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SKU: K4-40-103-18

K4 #10 Hole Red Spade Terminal For 18-22 Gauge Wire/Qty 12 Pack

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$9.95

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SKU: K4-40-102-18-100

K4 #10 Hole Yellow Ring Terminal For 10-12 Gauge Wire/Qty 100 Pack

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$17.95

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SKU: K4-40-102-18

K4 #10 Hole Yellow Ring Terminal For 10-12 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-105-18-100

K4 #10 Hole Yellow Spade Terminal For 10-12 Gauge Wire/Qty 100 Pack

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$18.95

Add to Cart
SKU: K4-40-105-18

K4 #10 Hole Yellow Spade Terminal For 10-12 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-100-06-100

K4 #6 Hole Red Ring Terminal For 18-22 Gauge Wire/Qty 100 Pack

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$14.95

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SKU: K4-40-100-06

K4 #6 Hole Red Ring Terminal For 18-22 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-103-06-100

K4 #6 Hole Red Spade Terminal For 18-22 Gauge Wire/Qty 100 Pack

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$14.95

Add to Cart
SKU: K4-40-103-06

K4 #6 Hole Red Spade Terminal For 18-22 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-101-12-100

K4 #8 Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 100 Pack

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$14.95

Add to Cart
SKU: K4-40-101-12

K4 #8 Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-104-12-100

K4 #8 Hole Blue Spade Terminal For 14-16 Gauge Wire/Qty 100 Pack

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$15.95

Add to Cart
SKU: K4-40-104-12

K4 #8 Hole Blue Spade Terminal For 14-16 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-100-12-100

K4 #8 Hole Red Ring Terminal For 18-22 Gauge Wire/Qty 100 Pack

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$14.95

Add to Cart
SKU: K4-40-100-12

K4 #8 Hole Red Ring Terminal For 18-22 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-103-12-100

K4 #8 Hole Red Spade Terminal For 18-22 Gauge Wire/Qty 100 Pack

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$14.95

Add to Cart
SKU: K4-40-103-12

K4 #8 Hole Red Spade Terminal For 18-22 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-107-11-100

K4 1/4" Blue Female Slide On Insulated Terminal 14-16 Gauge Wire/Qty 100 Pack

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$16.95

Add to Cart
SKU: K4-40-107-11

K4 1/4" Blue Female Slide On Insulated Terminal 14-16 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-107-10-100

K4 1/4" Blue Female Slide On Terminal For 14-16 Gauge Wire/Qty 100 Pack

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$14.95

Add to Cart
SKU: K4-40-107-10

K4 1/4" Blue Female Slide On Terminal For 14-16 Gauge Wire/Qty 12 Pack

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$11.95

Add to Cart
SKU: K4-40-106-10-100

K4 1/4" Blue Male Slide On Terminal For 14-16 Gauge Wire/Qty 100 Pack

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$18.95

Add to Cart
SKU: K4-40-106-10

K4 1/4" Blue Male Slide On Terminal For 14-16 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-101-25-100

K4 1/4" Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 100 Pack

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$17.95

Add to Cart
SKU: K4-40-101-25

K4 1/4" Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-102-25-100

K4 1/4" Hole Yellow Ring Terminal For 10-12 Gauge Wire/Qty 100 Pack

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$19.95

Add to Cart
SKU: K4-40-102-25

K4 1/4" Hole Yellow Ring Terminal For 10-12 Gauge Wire/Qty 12 Pack

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$10.95

Add to Cart
SKU: K4-40-107-09-100

K4 1/4" Red Female Slide On Insulated Terminal 18-22 Gauge Wire/Qty 100 Pack

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$16.95

Add to Cart
SKU: K4-40-107-09

K4 1/4" Red Female Slide On Insulated Terminal 18-22 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-107-08-100

K4 1/4" Red Female Slide On Terminal For 18-22 Gauge Wire/Qty 100 Pack

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$18.95

Add to Cart
SKU: K4-40-107-08

K4 1/4" Red Female Slide On Terminal For 18-22 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-106-08-100

K4 1/4" Red Male Slide On Terminal For 18-22 Gauge Wire/Qty 100 Pack

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$14.95

Add to Cart
SKU: K4-40-106-08

K4 1/4" Red Male Slide On Terminal For 18-22 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-107-12-100

K4 1/4" Yellow Female Slide On Terminal For 10-12 Gauge Wire/Qty 100 Pack

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$17.95

Add to Cart
SKU: K4-40-107-12

K4 1/4" Yellow Female Slide On Terminal For 10-12 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-106-12-100

K4 1/4" Yellow Male Slide On Terminal For 10-12 Gauge Wire/Qty 100 Pack

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$17.95

Add to Cart
SKU: K4-40-106-12

K4 1/4" Yellow Male Slide On Terminal For 10-12 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-101-37-100

K4 3/8" Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 100 Pack

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$18.95

Add to Cart
SKU: K4-40-101-37

K4 3/8" Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-102-37-100

K4 3/8" Hole Yellow Ring Terminal For 10-12 Gauge Wire/Qty 100 Pack

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$20.95

Add to Cart
SKU: K4-40-102-37

K4 3/8" Hole Yellow Ring Terminal For 10-12 Gauge Wire/Qty 12 Pack

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$13.95

Add to Cart
SKU: K4-40-107-37-100

K4 3/8" Yellow Female Slide On Terminal For 10-12 Gauge Wire/Qty 100 Pack

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$36.95

Add to Cart
SKU: K4-40-107-37

K4 3/8" Yellow Female Slide On Terminal For 10-12 Gauge Wire/Qty 12 Pack

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$14.95

Add to Cart
SKU: K4-40-101-31-100

K4 5/16" Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 100 Pack

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$18.95

Add to Cart
SKU: K4-40-101-31

K4 5/16" Hole Blue Ring Terminal For 14-16 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-40-102-31-100

K4 5/16" Hole Yellow Ring Terminal For 10-12 Gauge Wire/Qty 100 Pack

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$20.95

Add to Cart
SKU: K4-40-102-31

K4 5/16" Hole Yellow Ring Terminal For 10-12 Gauge Wire/Qty 12 Pack

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$10.95

Add to Cart
SKU: K4-40-130-08-100

K4 Adapter Connector Ring Post To Male Slide On Terminal/Qty 100 Pack

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$38.95

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SKU: K4-40-130-08

K4 Adapter Connector Ring Post To Male Slide On Terminal/Qty 6 Pack

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$9.95

Add to Cart
SKU: K4-40-131-08-100

K4 Adapter Connector Single Male Slide On Terminal To Double/Qty 100 Pack

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$24.95

Add to Cart
SKU: K4-40-132-08-100

K4 Adapter Connector Single Male Slide On Terminal To Double/Qty 100 Pk

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$29.95

Add to Cart
SKU: K4-40-132-08

K4 Adapter Connector Single Male Slide On Terminal To Double/Qty 6 Pack

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$9.95

Add to Cart
SKU: K4-40-109-18-100

K4 Blue Bullet Connector Set For 14-16 Gauge Wire/Qty 50 Sets

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$23.95

Add to Cart
SKU: K4-40-109-18

K4 Blue Bullet Connector Set For 14-16 Gauge Wire/Qty 6 Sets

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$9.95

Add to Cart
SKU: K4-40-120-10-100

K4 Blue Quick Splice Connector For 14-16 Gauge Wire/Qty 100 Pack

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$19.95

Add to Cart
SKU: K4-40-120-10

K4 Blue Quick Splice Connector For 14-16 Gauge Wire/Qty 4 Pack

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$8.95

Add to Cart
SKU: K4-40-110-10-100

K4 Blue Splice Connector For 14-16 Gauge Wire/Qty 100 Pack

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$12.95

Add to Cart
SKU: K4-40-110-10

K4 Blue Splice Connector For 14-16 Gauge Wire/Qty 12 Pack

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$8.95

Add to Cart
SKU: K4-40-121-10-100

K4 Blue T-tap Splice Connector For 14-16 Gauge Wire/Qty 100 Pack

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$27.95

Add to Cart
SKU: K4-40-121-10

K4 Blue T-tap Splice Connector For 14-16 Gauge Wire/Qty 4 Pack

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$8.95

Add to Cart
SKU: K4-40-108-12-100

K4 Red Bullet Connector Set For 18-22 Gauge Wire/Qty 50 Sets

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$18.95

Add to Cart
SKU: K4-40-108-12

K4 Red Bullet Connector Set For 18-22 Gauge Wire/Qty 6 Sets

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$9.95

Add to Cart
SKU: K4-40-120-08-100

K4 Red Quick Splice Connector For 18-22 Gauge Wire/Qty 100 Pack

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$19.95

Add to Cart
SKU: K4-40-120-08

K4 Red Quick Splice Connector For 18-22 Gauge Wire/Qty 4 Pack

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$8.95

Add to Cart
SKU: K4-40-110-08-100

K4 Red Splice Connector For 18-22 Gauge Wire/Qty 100 Pack

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$12.95

Add to Cart
SKU: K4-40-110-08

K4 Red Splice Connector For 18-22 Gauge Wire/Qty 12 Pack

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$8.95

Add to Cart
SKU: K4-40-121-08-100

K4 Red T-tap Splice Connector For 18-22 Gauge Wire/Qty 100 Pack

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$27.95

Add to Cart
SKU: K4-40-121-08

K4 Red T-tap Splice Connector For 18-22 Gauge Wire/Qty 4 Pack

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$8.95

Add to Cart
SKU: K4-40-110-12-100

K4 Yellow Splice Connector For 10-12 Gauge Wire/Qty 100 Pack

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$17.95

Add to Cart
SKU: K4-40-110-12

K4 Yellow Splice Connector For 10-12 Gauge Wire/Qty 12 Pack

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$9.95

Add to Cart
SKU: K4-22-121-FH-10

K4 1 Circuit Weather Pak Connector Housing (Female Side) USA Made, 10 Pack

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$21.95

Add to Cart
SKU: K4-22-121-MH-10

K4 1 Circuit Weather Pak Connector Housing (Male Side) USA Made, 10 Pack

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$13.95

Add to Cart
SKU: K4-22-121

K4 1 Circuit Weather Pak Connector Housing Set, USA Made, Each

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$9.95

Add to Cart
SKU: K4-19-159

K4 1" Black Heat Shrink Tubing 2 Foot Length

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$11.95

Add to Cart
SKU: K4-19-159-50

K4 1" Black Heat Shrink Tubing 50 Foot Length

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$74.95

Add to Cart
SKU: k4-19-157-100

K4 1/2" Black Heat Shrink Tubing 100 Foot Length

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$69.95

Add to Cart
SKU: K4-19-157

K4 1/2" Black Heat Shrink Tubing 2 Foot Length

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$9.95

Add to Cart
SKU: K4-19-155-100

K4 1/4" Black Heat Shrink Tubing 100 Foot Length

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$59.95

Add to Cart

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As a leading brand in rugged automotive parts for a variety of industrial, commercial, and residential applications, K4 Switches offer the best in performance and long-lasting endurance. We offer several options from K4 that can help keep your favorite vehicle in peak condition.

Our wide selection of K4 Switches offers something for everyone. We are stocked with the best in toggle switches, on/off switches, pole rockers, and more. All of the parts shown are constructed with the high standards you expect from K4 products, including triple seals, flexible acrylic coating, and O-ring seals for extra protection.

All of the exceptionally manufactured K4 products shown offer a diverse range of specifications capabilities to ensure you get the right power for your vehicle needs. When it comes to volts and amps, you need to make sure you are using the right option for the power source in question. We offer switches with built in amp breakers ranging from 3 amps to 40 amps. In addition, we offer voltage capacities of up to 12v to help maintain your electrical currents without overloading the system. Many of the switches we offer from this respected brand offer the ability to withstand 100 G’s while still carrying rated current. These parts are all made with high-performance in mind, and many models can last through 10,000 cycles while delivering flawless control. Our inventory features many different mounting lever lengths and mounting hole variations to ensure you get a part that is easy to install and compatible with your make or model. Choose from an array of designs, such as flip down switches, round push buttons, and rectangular push buttons, to find the visual appeal and superior performance you need.

We also offer a variety of other exceptional parts from K4 to meet various automotive needs. Our wide selection offers battery cut off dial switches, headlight dimmers in a variety of specs, indicator lights in several different measurements, circuit breakers with mounting tabs included, an array of fuses, and much more.

If you have any questions about locating the right part for your situation or needs, we would be happy to offer you further assistance.